* [PATCH net 11/18] drivers: net: cirrus: cs89x0: Remove this driver
From: Andrew Lunn @ 2026-04-21 19:31 UTC (permalink / raw)
To: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Simon Horman, Jonathan Corbet, Shuah Khan
Cc: linux-kernel, netdev, linux-doc, Andrew Lunn
In-Reply-To: <20260421-v7-0-0-net-next-driver-removal-v1-v1-0-69517c689d1f@lunn.ch>
The cs89x0 was written by Bonald Becker 1993 to 1994. It is an ISA
device, so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
drivers/net/ethernet/cirrus/Kconfig | 30 -
drivers/net/ethernet/cirrus/Makefile | 1 -
drivers/net/ethernet/cirrus/cs89x0.c | 1915 ----------------------------------
3 files changed, 1946 deletions(-)
diff --git a/drivers/net/ethernet/cirrus/Kconfig b/drivers/net/ethernet/cirrus/Kconfig
index 5bdf731d9503..1a0c7b3bfcd6 100644
--- a/drivers/net/ethernet/cirrus/Kconfig
+++ b/drivers/net/ethernet/cirrus/Kconfig
@@ -17,36 +17,6 @@ config NET_VENDOR_CIRRUS
if NET_VENDOR_CIRRUS
-config CS89x0
- tristate
-
-config CS89x0_ISA
- tristate "CS89x0 ISA driver support"
- depends on HAS_IOPORT_MAP
- depends on ISA
- depends on !PPC32
- depends on CS89x0_PLATFORM=n
- select NETDEV_LEGACY_INIT
- select CS89x0
- help
- Support for CS89x0 chipset based Ethernet cards. If you have a
- network (Ethernet) card of this type, say Y and read the file
- <file:Documentation/networking/device_drivers/ethernet/cirrus/cs89x0.rst>.
-
- To compile this driver as a module, choose M here. The module
- will be called cs89x0.
-
-config CS89x0_PLATFORM
- tristate "CS89x0 platform driver support"
- depends on ARM || (COMPILE_TEST && !PPC)
- select CS89x0
- help
- Say Y to compile the cs89x0 platform driver. This makes this driver
- suitable for use on certain evaluation boards such as the iMX21ADS.
-
- To compile this driver as a module, choose M here. The module
- will be called cs89x0.
-
config EP93XX_ETH
tristate "EP93xx Ethernet support"
depends on (ARM && ARCH_EP93XX) || COMPILE_TEST
diff --git a/drivers/net/ethernet/cirrus/Makefile b/drivers/net/ethernet/cirrus/Makefile
index 84865e593788..cb740939d976 100644
--- a/drivers/net/ethernet/cirrus/Makefile
+++ b/drivers/net/ethernet/cirrus/Makefile
@@ -3,6 +3,5 @@
# Makefile for the Cirrus network device drivers.
#
-obj-$(CONFIG_CS89x0) += cs89x0.o
obj-$(CONFIG_EP93XX_ETH) += ep93xx_eth.o
obj-$(CONFIG_MAC89x0) += mac89x0.o
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
deleted file mode 100644
index fa5857923db4..000000000000
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ /dev/null
@@ -1,1915 +0,0 @@
-/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0
- * driver for linux.
- * Written 1996 by Russell Nelson, with reference to skeleton.c
- * written 1993-1994 by Donald Becker.
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- * The author may be reached at nelson@crynwr.com, Crynwr
- * Software, 521 Pleasant Valley Rd., Potsdam, NY 13676
- *
- * Other contributors:
- * Mike Cruse : mcruse@cti-ltd.com
- * Russ Nelson
- * Melody Lee : ethernet@crystal.cirrus.com
- * Alan Cox
- * Andrew Morton
- * Oskar Schirmer : oskar@scara.com
- * Deepak Saxena : dsaxena@plexity.net
- * Dmitry Pervushin : dpervushin@ru.mvista.com
- * Deepak Saxena : dsaxena@plexity.net
- * Domenico Andreoli : cavokz@gmail.com
- */
-
-
-/*
- * Set this to zero to disable DMA code
- *
- * Note that even if DMA is turned off we still support the 'dma' and 'use_dma'
- * module options so we don't break any startup scripts.
- */
-#ifndef CONFIG_ISA_DMA_API
-#define ALLOW_DMA 0
-#else
-#define ALLOW_DMA 1
-#endif
-
-/*
- * Set this to zero to remove all the debug statements via
- * dead code elimination
- */
-#define DEBUGGING 1
-
-/* Sources:
- * Crynwr packet driver epktisa.
- * Crystal Semiconductor data sheets.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/printk.h>
-#include <linux/errno.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/jiffies.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/delay.h>
-#include <linux/gfp.h>
-#include <linux/io.h>
-
-#include <net/Space.h>
-
-#include <asm/irq.h>
-#include <linux/atomic.h>
-#if ALLOW_DMA
-#include <asm/dma.h>
-#endif
-
-#include "cs89x0.h"
-
-#define cs89_dbg(val, level, fmt, ...) \
-do { \
- if (val <= net_debug) \
- pr_##level(fmt, ##__VA_ARGS__); \
-} while (0)
-
-static char version[] __initdata =
- "v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, Andrew Morton";
-
-#define DRV_NAME "cs89x0"
-
-/* First, a few definitions that the brave might change.
- * A zero-terminated list of I/O addresses to be probed. Some special flags..
- * Addr & 1 = Read back the address port, look for signature and reset
- * the page window before probing
- * Addr & 3 = Reset the page window and probe
- * The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space,
- * but it is possible that a Cirrus board could be plugged into the ISA
- * slots.
- */
-/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps
- * them to system IRQ numbers. This mapping is card specific and is set to
- * the configuration of the Cirrus Eval board for this chip.
- */
-#if IS_ENABLED(CONFIG_CS89x0_ISA)
-static unsigned int netcard_portlist[] __used __initdata = {
- 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240,
- 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0
-};
-static unsigned int cs8900_irq_map[] = {
- 10, 11, 12, 5
-};
-#endif
-
-#if DEBUGGING
-static unsigned int net_debug = DEBUGGING;
-#else
-#define net_debug 0 /* gcc will remove all the debug code for us */
-#endif
-
-/* The number of low I/O ports used by the ethercard. */
-#define NETCARD_IO_EXTENT 16
-
-/* we allow the user to override various values normally set in the EEPROM */
-#define FORCE_RJ45 0x0001 /* pick one of these three */
-#define FORCE_AUI 0x0002
-#define FORCE_BNC 0x0004
-
-#define FORCE_AUTO 0x0010 /* pick one of these three */
-#define FORCE_HALF 0x0020
-#define FORCE_FULL 0x0030
-
-/* Information that need to be kept for each board. */
-struct net_local {
- int chip_type; /* one of: CS8900, CS8920, CS8920M */
- char chip_revision; /* revision letter of the chip ('A'...) */
- int send_cmd; /* the proper send command: TX_NOW, TX_AFTER_381, or TX_AFTER_ALL */
- int auto_neg_cnf; /* auto-negotiation word from EEPROM */
- int adapter_cnf; /* adapter configuration from EEPROM */
- int isa_config; /* ISA configuration from EEPROM */
- int irq_map; /* IRQ map from EEPROM */
- int rx_mode; /* what mode are we in? 0, RX_MULTCAST_ACCEPT, or RX_ALL_ACCEPT */
- int curr_rx_cfg; /* a copy of PP_RxCFG */
- int linectl; /* either 0 or LOW_RX_SQUELCH, depending on configuration. */
- int send_underrun; /* keep track of how many underruns in a row we get */
- int force; /* force various values; see FORCE* above. */
- spinlock_t lock;
- void __iomem *virt_addr;/* CS89x0 virtual address. */
-#if ALLOW_DMA
- int use_dma; /* Flag: we're using dma */
- int dma; /* DMA channel */
- int dmasize; /* 16 or 64 */
- unsigned char *dma_buff; /* points to the beginning of the buffer */
- unsigned char *end_dma_buff; /* points to the end of the buffer */
- unsigned char *rx_dma_ptr; /* points to the next packet */
-#endif
-};
-
-/* Example routines you must write ;->. */
-#define tx_done(dev) 1
-
-/*
- * Permit 'cs89x0_dma=N' in the kernel boot environment
- */
-#if !defined(MODULE)
-#if ALLOW_DMA
-static int g_cs89x0_dma;
-
-static int __init dma_fn(char *str)
-{
- g_cs89x0_dma = simple_strtol(str, NULL, 0);
- return 1;
-}
-
-__setup("cs89x0_dma=", dma_fn);
-#endif /* ALLOW_DMA */
-
-static int g_cs89x0_media__force;
-
-static int __init media_fn(char *str)
-{
- if (!strcmp(str, "rj45"))
- g_cs89x0_media__force = FORCE_RJ45;
- else if (!strcmp(str, "aui"))
- g_cs89x0_media__force = FORCE_AUI;
- else if (!strcmp(str, "bnc"))
- g_cs89x0_media__force = FORCE_BNC;
-
- return 1;
-}
-
-__setup("cs89x0_media=", media_fn);
-#endif
-
-static void readwords(struct net_local *lp, int portno, void *buf, int length)
-{
- u8 *buf8 = (u8 *)buf;
-
- do {
- u16 tmp16;
-
- tmp16 = ioread16(lp->virt_addr + portno);
- *buf8++ = (u8)tmp16;
- *buf8++ = (u8)(tmp16 >> 8);
- } while (--length);
-}
-
-static void writewords(struct net_local *lp, int portno, void *buf, int length)
-{
- u8 *buf8 = (u8 *)buf;
-
- do {
- u16 tmp16;
-
- tmp16 = *buf8++;
- tmp16 |= (*buf8++) << 8;
- iowrite16(tmp16, lp->virt_addr + portno);
- } while (--length);
-}
-
-static u16
-readreg(struct net_device *dev, u16 regno)
-{
- struct net_local *lp = netdev_priv(dev);
-
- iowrite16(regno, lp->virt_addr + ADD_PORT);
- return ioread16(lp->virt_addr + DATA_PORT);
-}
-
-static void
-writereg(struct net_device *dev, u16 regno, u16 value)
-{
- struct net_local *lp = netdev_priv(dev);
-
- iowrite16(regno, lp->virt_addr + ADD_PORT);
- iowrite16(value, lp->virt_addr + DATA_PORT);
-}
-
-static int __init
-wait_eeprom_ready(struct net_device *dev)
-{
- unsigned long timeout = jiffies;
- /* check to see if the EEPROM is ready,
- * a timeout is used just in case EEPROM is ready when
- * SI_BUSY in the PP_SelfST is clear
- */
- while (readreg(dev, PP_SelfST) & SI_BUSY)
- if (time_after_eq(jiffies, timeout + 40))
- return -1;
- return 0;
-}
-
-static int __init
-get_eeprom_data(struct net_device *dev, int off, int len, int *buffer)
-{
- int i;
-
- cs89_dbg(3, info, "EEPROM data from %x for %x:", off, len);
- for (i = 0; i < len; i++) {
- if (wait_eeprom_ready(dev) < 0)
- return -1;
- /* Now send the EEPROM read command and EEPROM location to read */
- writereg(dev, PP_EECMD, (off + i) | EEPROM_READ_CMD);
- if (wait_eeprom_ready(dev) < 0)
- return -1;
- buffer[i] = readreg(dev, PP_EEData);
- cs89_dbg(3, cont, " %04x", buffer[i]);
- }
- cs89_dbg(3, cont, "\n");
- return 0;
-}
-
-static int __init
-get_eeprom_cksum(int off, int len, int *buffer)
-{
- int i, cksum;
-
- cksum = 0;
- for (i = 0; i < len; i++)
- cksum += buffer[i];
- cksum &= 0xffff;
- if (cksum == 0)
- return 0;
- return -1;
-}
-
-static void
-write_irq(struct net_device *dev, int chip_type, int irq)
-{
- int i;
-
- if (chip_type == CS8900) {
-#if IS_ENABLED(CONFIG_CS89x0_ISA)
- /* Search the mapping table for the corresponding IRQ pin. */
- for (i = 0; i != ARRAY_SIZE(cs8900_irq_map); i++)
- if (cs8900_irq_map[i] == irq)
- break;
- /* Not found */
- if (i == ARRAY_SIZE(cs8900_irq_map))
- i = 3;
-#else
- /* INTRQ0 pin is used for interrupt generation. */
- i = 0;
-#endif
- writereg(dev, PP_CS8900_ISAINT, i);
- } else {
- writereg(dev, PP_CS8920_ISAINT, irq);
- }
-}
-
-static void
-count_rx_errors(int status, struct net_device *dev)
-{
- dev->stats.rx_errors++;
- if (status & RX_RUNT)
- dev->stats.rx_length_errors++;
- if (status & RX_EXTRA_DATA)
- dev->stats.rx_length_errors++;
- if ((status & RX_CRC_ERROR) && !(status & (RX_EXTRA_DATA | RX_RUNT)))
- /* per str 172 */
- dev->stats.rx_crc_errors++;
- if (status & RX_DRIBBLE)
- dev->stats.rx_frame_errors++;
-}
-
-/*********************************
- * This page contains DMA routines
- *********************************/
-
-#if ALLOW_DMA
-
-#define dma_page_eq(ptr1, ptr2) ((long)(ptr1) >> 17 == (long)(ptr2) >> 17)
-
-static void
-get_dma_channel(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-
- if (lp->dma) {
- dev->dma = lp->dma;
- lp->isa_config |= ISA_RxDMA;
- } else {
- if ((lp->isa_config & ANY_ISA_DMA) == 0)
- return;
- dev->dma = lp->isa_config & DMA_NO_MASK;
- if (lp->chip_type == CS8900)
- dev->dma += 5;
- if (dev->dma < 5 || dev->dma > 7) {
- lp->isa_config &= ~ANY_ISA_DMA;
- return;
- }
- }
-}
-
-static void
-write_dma(struct net_device *dev, int chip_type, int dma)
-{
- struct net_local *lp = netdev_priv(dev);
- if ((lp->isa_config & ANY_ISA_DMA) == 0)
- return;
- if (chip_type == CS8900)
- writereg(dev, PP_CS8900_ISADMA, dma - 5);
- else
- writereg(dev, PP_CS8920_ISADMA, dma);
-}
-
-static void
-set_dma_cfg(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-
- if (lp->use_dma) {
- if ((lp->isa_config & ANY_ISA_DMA) == 0) {
- cs89_dbg(3, err, "set_dma_cfg(): no DMA\n");
- return;
- }
- if (lp->isa_config & ISA_RxDMA) {
- lp->curr_rx_cfg |= RX_DMA_ONLY;
- cs89_dbg(3, info, "set_dma_cfg(): RX_DMA_ONLY\n");
- } else {
- lp->curr_rx_cfg |= AUTO_RX_DMA; /* not that we support it... */
- cs89_dbg(3, info, "set_dma_cfg(): AUTO_RX_DMA\n");
- }
- }
-}
-
-static int
-dma_bufcfg(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- if (lp->use_dma)
- return (lp->isa_config & ANY_ISA_DMA) ? RX_DMA_ENBL : 0;
- else
- return 0;
-}
-
-static int
-dma_busctl(struct net_device *dev)
-{
- int retval = 0;
- struct net_local *lp = netdev_priv(dev);
- if (lp->use_dma) {
- if (lp->isa_config & ANY_ISA_DMA)
- retval |= RESET_RX_DMA; /* Reset the DMA pointer */
- if (lp->isa_config & DMA_BURST)
- retval |= DMA_BURST_MODE; /* Does ISA config specify DMA burst ? */
- if (lp->dmasize == 64)
- retval |= RX_DMA_SIZE_64K; /* did they ask for 64K? */
- retval |= MEMORY_ON; /* we need memory enabled to use DMA. */
- }
- return retval;
-}
-
-static void
-dma_rx(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- struct sk_buff *skb;
- int status, length;
- unsigned char *bp = lp->rx_dma_ptr;
-
- status = bp[0] + (bp[1] << 8);
- length = bp[2] + (bp[3] << 8);
- bp += 4;
-
- cs89_dbg(5, debug, "%s: receiving DMA packet at %lx, status %x, length %x\n",
- dev->name, (unsigned long)bp, status, length);
-
- if ((status & RX_OK) == 0) {
- count_rx_errors(status, dev);
- goto skip_this_frame;
- }
-
- /* Malloc up new buffer. */
- skb = netdev_alloc_skb(dev, length + 2);
- if (skb == NULL) {
- dev->stats.rx_dropped++;
-
- /* AKPM: advance bp to the next frame */
-skip_this_frame:
- bp += (length + 3) & ~3;
- if (bp >= lp->end_dma_buff)
- bp -= lp->dmasize * 1024;
- lp->rx_dma_ptr = bp;
- return;
- }
- skb_reserve(skb, 2); /* longword align L3 header */
-
- if (bp + length > lp->end_dma_buff) {
- int semi_cnt = lp->end_dma_buff - bp;
- skb_put_data(skb, bp, semi_cnt);
- skb_put_data(skb, lp->dma_buff, length - semi_cnt);
- } else {
- skb_put_data(skb, bp, length);
- }
- bp += (length + 3) & ~3;
- if (bp >= lp->end_dma_buff)
- bp -= lp->dmasize*1024;
- lp->rx_dma_ptr = bp;
-
- cs89_dbg(3, info, "%s: received %d byte DMA packet of type %x\n",
- dev->name, length,
- ((skb->data[ETH_ALEN + ETH_ALEN] << 8) |
- skb->data[ETH_ALEN + ETH_ALEN + 1]));
-
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += length;
-}
-
-static void release_dma_buff(struct net_local *lp)
-{
- if (lp->dma_buff) {
- free_pages((unsigned long)(lp->dma_buff),
- get_order(lp->dmasize * 1024));
- lp->dma_buff = NULL;
- }
-}
-
-#endif /* ALLOW_DMA */
-
-static void
-control_dc_dc(struct net_device *dev, int on_not_off)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned int selfcontrol;
- unsigned long timenow = jiffies;
- /* control the DC to DC convertor in the SelfControl register.
- * Note: This is hooked up to a general purpose pin, might not
- * always be a DC to DC convertor.
- */
-
- selfcontrol = HCB1_ENBL; /* Enable the HCB1 bit as an output */
- if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off)
- selfcontrol |= HCB1;
- else
- selfcontrol &= ~HCB1;
- writereg(dev, PP_SelfCTL, selfcontrol);
-
- /* Wait for the DC/DC converter to power up - 500ms */
- while (time_before(jiffies, timenow + HZ))
- ;
-}
-
-/* send a test packet - return true if carrier bits are ok */
-static int
-send_test_pkt(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- char test_packet[] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 46, /* A 46 in network order */
- 0, 0, /* DSAP=0 & SSAP=0 fields */
- 0xf3, 0 /* Control (Test Req + P bit set) */
- };
- unsigned long timenow = jiffies;
-
- writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON);
-
- memcpy(test_packet, dev->dev_addr, ETH_ALEN);
- memcpy(test_packet + ETH_ALEN, dev->dev_addr, ETH_ALEN);
-
- iowrite16(TX_AFTER_ALL, lp->virt_addr + TX_CMD_PORT);
- iowrite16(ETH_ZLEN, lp->virt_addr + TX_LEN_PORT);
-
- /* Test to see if the chip has allocated memory for the packet */
- while (time_before(jiffies, timenow + 5))
- if (readreg(dev, PP_BusST) & READY_FOR_TX_NOW)
- break;
- if (time_after_eq(jiffies, timenow + 5))
- return 0; /* this shouldn't happen */
-
- /* Write the contents of the packet */
- writewords(lp, TX_FRAME_PORT, test_packet, (ETH_ZLEN + 1) >> 1);
-
- cs89_dbg(1, debug, "Sending test packet ");
- /* wait a couple of jiffies for packet to be received */
- for (timenow = jiffies; time_before(jiffies, timenow + 3);)
- ;
- if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) {
- cs89_dbg(1, cont, "succeeded\n");
- return 1;
- }
- cs89_dbg(1, cont, "failed\n");
- return 0;
-}
-
-#define DETECTED_NONE 0
-#define DETECTED_RJ45H 1
-#define DETECTED_RJ45F 2
-#define DETECTED_AUI 3
-#define DETECTED_BNC 4
-
-static int
-detect_tp(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned long timenow = jiffies;
- int fdx;
-
- cs89_dbg(1, debug, "%s: Attempting TP\n", dev->name);
-
- /* If connected to another full duplex capable 10-Base-T card
- * the link pulses seem to be lost when the auto detect bit in
- * the LineCTL is set. To overcome this the auto detect bit will
- * be cleared whilst testing the 10-Base-T interface. This would
- * not be necessary for the sparrow chip but is simpler to do it
- * anyway.
- */
- writereg(dev, PP_LineCTL, lp->linectl & ~AUI_ONLY);
- control_dc_dc(dev, 0);
-
- /* Delay for the hardware to work out if the TP cable is present
- * - 150ms
- */
- for (timenow = jiffies; time_before(jiffies, timenow + 15);)
- ;
- if ((readreg(dev, PP_LineST) & LINK_OK) == 0)
- return DETECTED_NONE;
-
- if (lp->chip_type == CS8900) {
- switch (lp->force & 0xf0) {
-#if 0
- case FORCE_AUTO:
- pr_info("%s: cs8900 doesn't autonegotiate\n",
- dev->name);
- return DETECTED_NONE;
-#endif
- /* CS8900 doesn't support AUTO, change to HALF*/
- case FORCE_AUTO:
- lp->force &= ~FORCE_AUTO;
- lp->force |= FORCE_HALF;
- break;
- case FORCE_HALF:
- break;
- case FORCE_FULL:
- writereg(dev, PP_TestCTL,
- readreg(dev, PP_TestCTL) | FDX_8900);
- break;
- }
- fdx = readreg(dev, PP_TestCTL) & FDX_8900;
- } else {
- switch (lp->force & 0xf0) {
- case FORCE_AUTO:
- lp->auto_neg_cnf = AUTO_NEG_ENABLE;
- break;
- case FORCE_HALF:
- lp->auto_neg_cnf = 0;
- break;
- case FORCE_FULL:
- lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX;
- break;
- }
-
- writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK);
-
- if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) {
- pr_info("%s: negotiating duplex...\n", dev->name);
- while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) {
- if (time_after(jiffies, timenow + 4000)) {
- pr_err("**** Full / half duplex auto-negotiation timed out ****\n");
- break;
- }
- }
- }
- fdx = readreg(dev, PP_AutoNegST) & FDX_ACTIVE;
- }
- if (fdx)
- return DETECTED_RJ45F;
- else
- return DETECTED_RJ45H;
-}
-
-static int
-detect_bnc(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-
- cs89_dbg(1, debug, "%s: Attempting BNC\n", dev->name);
- control_dc_dc(dev, 1);
-
- writereg(dev, PP_LineCTL, (lp->linectl & ~AUTO_AUI_10BASET) | AUI_ONLY);
-
- if (send_test_pkt(dev))
- return DETECTED_BNC;
- else
- return DETECTED_NONE;
-}
-
-static int
-detect_aui(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-
- cs89_dbg(1, debug, "%s: Attempting AUI\n", dev->name);
- control_dc_dc(dev, 0);
-
- writereg(dev, PP_LineCTL, (lp->linectl & ~AUTO_AUI_10BASET) | AUI_ONLY);
-
- if (send_test_pkt(dev))
- return DETECTED_AUI;
- else
- return DETECTED_NONE;
-}
-
-/* We have a good packet(s), get it/them out of the buffers. */
-static void
-net_rx(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- struct sk_buff *skb;
- int status, length;
-
- status = ioread16(lp->virt_addr + RX_FRAME_PORT);
- length = ioread16(lp->virt_addr + RX_FRAME_PORT);
-
- if ((status & RX_OK) == 0) {
- count_rx_errors(status, dev);
- return;
- }
-
- /* Malloc up new buffer. */
- skb = netdev_alloc_skb(dev, length + 2);
- if (skb == NULL) {
- dev->stats.rx_dropped++;
- return;
- }
- skb_reserve(skb, 2); /* longword align L3 header */
-
- readwords(lp, RX_FRAME_PORT, skb_put(skb, length), length >> 1);
- if (length & 1)
- skb->data[length-1] = ioread16(lp->virt_addr + RX_FRAME_PORT);
-
- cs89_dbg(3, debug, "%s: received %d byte packet of type %x\n",
- dev->name, length,
- (skb->data[ETH_ALEN + ETH_ALEN] << 8) |
- skb->data[ETH_ALEN + ETH_ALEN + 1]);
-
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += length;
-}
-
-/* The typical workload of the driver:
- * Handle the network interface interrupts.
- */
-
-static irqreturn_t net_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct net_local *lp;
- int status;
- int handled = 0;
-
- lp = netdev_priv(dev);
-
- /* we MUST read all the events out of the ISQ, otherwise we'll never
- * get interrupted again. As a consequence, we can't have any limit
- * on the number of times we loop in the interrupt handler. The
- * hardware guarantees that eventually we'll run out of events. Of
- * course, if you're on a slow machine, and packets are arriving
- * faster than you can read them off, you're screwed. Hasta la
- * vista, baby!
- */
- while ((status = ioread16(lp->virt_addr + ISQ_PORT))) {
- cs89_dbg(4, debug, "%s: event=%04x\n", dev->name, status);
- handled = 1;
- switch (status & ISQ_EVENT_MASK) {
- case ISQ_RECEIVER_EVENT:
- /* Got a packet(s). */
- net_rx(dev);
- break;
- case ISQ_TRANSMITTER_EVENT:
- dev->stats.tx_packets++;
- netif_wake_queue(dev); /* Inform upper layers. */
- if ((status & (TX_OK |
- TX_LOST_CRS |
- TX_SQE_ERROR |
- TX_LATE_COL |
- TX_16_COL)) != TX_OK) {
- if ((status & TX_OK) == 0)
- dev->stats.tx_errors++;
- if (status & TX_LOST_CRS)
- dev->stats.tx_carrier_errors++;
- if (status & TX_SQE_ERROR)
- dev->stats.tx_heartbeat_errors++;
- if (status & TX_LATE_COL)
- dev->stats.tx_window_errors++;
- if (status & TX_16_COL)
- dev->stats.tx_aborted_errors++;
- }
- break;
- case ISQ_BUFFER_EVENT:
- if (status & READY_FOR_TX) {
- /* we tried to transmit a packet earlier,
- * but inexplicably ran out of buffers.
- * That shouldn't happen since we only ever
- * load one packet. Shrug. Do the right
- * thing anyway.
- */
- netif_wake_queue(dev); /* Inform upper layers. */
- }
- if (status & TX_UNDERRUN) {
- cs89_dbg(0, err, "%s: transmit underrun\n",
- dev->name);
- lp->send_underrun++;
- if (lp->send_underrun == 3)
- lp->send_cmd = TX_AFTER_381;
- else if (lp->send_underrun == 6)
- lp->send_cmd = TX_AFTER_ALL;
- /* transmit cycle is done, although
- * frame wasn't transmitted - this
- * avoids having to wait for the upper
- * layers to timeout on us, in the
- * event of a tx underrun
- */
- netif_wake_queue(dev); /* Inform upper layers. */
- }
-#if ALLOW_DMA
- if (lp->use_dma && (status & RX_DMA)) {
- int count = readreg(dev, PP_DmaFrameCnt);
- while (count) {
- cs89_dbg(5, debug,
- "%s: receiving %d DMA frames\n",
- dev->name, count);
- if (count > 1)
- cs89_dbg(2, debug,
- "%s: receiving %d DMA frames\n",
- dev->name, count);
- dma_rx(dev);
- if (--count == 0)
- count = readreg(dev, PP_DmaFrameCnt);
- if (count > 0)
- cs89_dbg(2, debug,
- "%s: continuing with %d DMA frames\n",
- dev->name, count);
- }
- }
-#endif
- break;
- case ISQ_RX_MISS_EVENT:
- dev->stats.rx_missed_errors += (status >> 6);
- break;
- case ISQ_TX_COL_EVENT:
- dev->stats.collisions += (status >> 6);
- break;
- }
- }
- return IRQ_RETVAL(handled);
-}
-
-/* Open/initialize the board. This is called (in the current kernel)
- sometime after booting when the 'ifconfig' program is run.
-
- This routine should set everything up anew at each open, even
- registers that "should" only need to be set once at boot, so that
- there is non-reboot way to recover if something goes wrong.
-*/
-
-/* AKPM: do we need to do any locking here? */
-
-static int
-net_open(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- int result = 0;
- int i;
- int ret;
-
- if (dev->irq < 2) {
- /* Allow interrupts to be generated by the chip */
-/* Cirrus' release had this: */
-#if 0
- writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL) | ENABLE_IRQ);
-#endif
-/* And 2.3.47 had this: */
- writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
-
- for (i = 2; i < CS8920_NO_INTS; i++) {
- if ((1 << i) & lp->irq_map) {
- if (request_irq(i, net_interrupt, 0, dev->name,
- dev) == 0) {
- dev->irq = i;
- write_irq(dev, lp->chip_type, i);
- /* writereg(dev, PP_BufCFG, GENERATE_SW_INTERRUPT); */
- break;
- }
- }
- }
-
- if (i >= CS8920_NO_INTS) {
- writereg(dev, PP_BusCTL, 0); /* disable interrupts. */
- pr_err("can't get an interrupt\n");
- ret = -EAGAIN;
- goto bad_out;
- }
- } else {
-#if IS_ENABLED(CONFIG_CS89x0_ISA)
- if (((1 << dev->irq) & lp->irq_map) == 0) {
- pr_err("%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
- dev->name, dev->irq, lp->irq_map);
- ret = -EAGAIN;
- goto bad_out;
- }
-#endif
-/* FIXME: Cirrus' release had this: */
- writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ);
-/* And 2.3.47 had this: */
-#if 0
- writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
-#endif
- write_irq(dev, lp->chip_type, dev->irq);
- ret = request_irq(dev->irq, net_interrupt, 0, dev->name, dev);
- if (ret) {
- pr_err("request_irq(%d) failed\n", dev->irq);
- goto bad_out;
- }
- }
-
-#if ALLOW_DMA
- if (lp->use_dma && (lp->isa_config & ANY_ISA_DMA)) {
- unsigned long flags;
- lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL,
- get_order(lp->dmasize * 1024));
- if (!lp->dma_buff) {
- pr_err("%s: cannot get %dK memory for DMA\n",
- dev->name, lp->dmasize);
- goto release_irq;
- }
- cs89_dbg(1, debug, "%s: dma %lx %lx\n",
- dev->name,
- (unsigned long)lp->dma_buff,
- (unsigned long)isa_virt_to_bus(lp->dma_buff));
- if ((unsigned long)lp->dma_buff >= MAX_DMA_ADDRESS ||
- !dma_page_eq(lp->dma_buff,
- lp->dma_buff + lp->dmasize * 1024 - 1)) {
- pr_err("%s: not usable as DMA buffer\n", dev->name);
- goto release_irq;
- }
- memset(lp->dma_buff, 0, lp->dmasize * 1024); /* Why? */
- if (request_dma(dev->dma, dev->name)) {
- pr_err("%s: cannot get dma channel %d\n",
- dev->name, dev->dma);
- goto release_irq;
- }
- write_dma(dev, lp->chip_type, dev->dma);
- lp->rx_dma_ptr = lp->dma_buff;
- lp->end_dma_buff = lp->dma_buff + lp->dmasize * 1024;
- spin_lock_irqsave(&lp->lock, flags);
- disable_dma(dev->dma);
- clear_dma_ff(dev->dma);
- set_dma_mode(dev->dma, DMA_RX_MODE); /* auto_init as well */
- set_dma_addr(dev->dma, isa_virt_to_bus(lp->dma_buff));
- set_dma_count(dev->dma, lp->dmasize * 1024);
- enable_dma(dev->dma);
- spin_unlock_irqrestore(&lp->lock, flags);
- }
-#endif /* ALLOW_DMA */
-
- /* set the Ethernet address */
- for (i = 0; i < ETH_ALEN / 2; i++)
- writereg(dev, PP_IA + i * 2,
- (dev->dev_addr[i * 2] |
- (dev->dev_addr[i * 2 + 1] << 8)));
-
- /* while we're testing the interface, leave interrupts disabled */
- writereg(dev, PP_BusCTL, MEMORY_ON);
-
- /* Set the LineCTL quintuplet based on adapter configuration read from EEPROM */
- if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) &&
- (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH))
- lp->linectl = LOW_RX_SQUELCH;
- else
- lp->linectl = 0;
-
- /* check to make sure that they have the "right" hardware available */
- switch (lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
- case A_CNF_MEDIA_10B_T:
- result = lp->adapter_cnf & A_CNF_10B_T;
- break;
- case A_CNF_MEDIA_AUI:
- result = lp->adapter_cnf & A_CNF_AUI;
- break;
- case A_CNF_MEDIA_10B_2:
- result = lp->adapter_cnf & A_CNF_10B_2;
- break;
- default:
- result = lp->adapter_cnf & (A_CNF_10B_T |
- A_CNF_AUI |
- A_CNF_10B_2);
- }
- if (!result) {
- pr_err("%s: EEPROM is configured for unavailable media\n",
- dev->name);
-release_dma:
-#if ALLOW_DMA
- free_dma(dev->dma);
-release_irq:
- release_dma_buff(lp);
-#endif
- writereg(dev, PP_LineCTL,
- readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON));
- free_irq(dev->irq, dev);
- ret = -EAGAIN;
- goto bad_out;
- }
-
- /* set the hardware to the configured choice */
- switch (lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
- case A_CNF_MEDIA_10B_T:
- result = detect_tp(dev);
- if (result == DETECTED_NONE) {
- pr_warn("%s: 10Base-T (RJ-45) has no cable\n",
- dev->name);
- if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
- result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */
- }
- break;
- case A_CNF_MEDIA_AUI:
- result = detect_aui(dev);
- if (result == DETECTED_NONE) {
- pr_warn("%s: 10Base-5 (AUI) has no cable\n", dev->name);
- if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
- result = DETECTED_AUI; /* Yes! I don't care if I see a carrier */
- }
- break;
- case A_CNF_MEDIA_10B_2:
- result = detect_bnc(dev);
- if (result == DETECTED_NONE) {
- pr_warn("%s: 10Base-2 (BNC) has no cable\n", dev->name);
- if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
- result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */
- }
- break;
- case A_CNF_MEDIA_AUTO:
- writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET);
- if (lp->adapter_cnf & A_CNF_10B_T) {
- result = detect_tp(dev);
- if (result != DETECTED_NONE)
- break;
- }
- if (lp->adapter_cnf & A_CNF_AUI) {
- result = detect_aui(dev);
- if (result != DETECTED_NONE)
- break;
- }
- if (lp->adapter_cnf & A_CNF_10B_2) {
- result = detect_bnc(dev);
- if (result != DETECTED_NONE)
- break;
- }
- pr_err("%s: no media detected\n", dev->name);
- goto release_dma;
- }
- switch (result) {
- case DETECTED_NONE:
- pr_err("%s: no network cable attached to configured media\n",
- dev->name);
- goto release_dma;
- case DETECTED_RJ45H:
- pr_info("%s: using half-duplex 10Base-T (RJ-45)\n", dev->name);
- break;
- case DETECTED_RJ45F:
- pr_info("%s: using full-duplex 10Base-T (RJ-45)\n", dev->name);
- break;
- case DETECTED_AUI:
- pr_info("%s: using 10Base-5 (AUI)\n", dev->name);
- break;
- case DETECTED_BNC:
- pr_info("%s: using 10Base-2 (BNC)\n", dev->name);
- break;
- }
-
- /* Turn on both receive and transmit operations */
- writereg(dev, PP_LineCTL,
- readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON);
-
- /* Receive only error free packets addressed to this card */
- lp->rx_mode = 0;
- writereg(dev, PP_RxCTL, DEF_RX_ACCEPT);
-
- lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL;
-
- if (lp->isa_config & STREAM_TRANSFER)
- lp->curr_rx_cfg |= RX_STREAM_ENBL;
-#if ALLOW_DMA
- set_dma_cfg(dev);
-#endif
- writereg(dev, PP_RxCFG, lp->curr_rx_cfg);
-
- writereg(dev, PP_TxCFG, (TX_LOST_CRS_ENBL |
- TX_SQE_ERROR_ENBL |
- TX_OK_ENBL |
- TX_LATE_COL_ENBL |
- TX_JBR_ENBL |
- TX_ANY_COL_ENBL |
- TX_16_COL_ENBL));
-
- writereg(dev, PP_BufCFG, (READY_FOR_TX_ENBL |
- RX_MISS_COUNT_OVRFLOW_ENBL |
-#if ALLOW_DMA
- dma_bufcfg(dev) |
-#endif
- TX_COL_COUNT_OVRFLOW_ENBL |
- TX_UNDERRUN_ENBL));
-
- /* now that we've got our act together, enable everything */
- writereg(dev, PP_BusCTL, (ENABLE_IRQ
- | (dev->mem_start ? MEMORY_ON : 0) /* turn memory on */
-#if ALLOW_DMA
- | dma_busctl(dev)
-#endif
- ));
- netif_start_queue(dev);
- cs89_dbg(1, debug, "net_open() succeeded\n");
- return 0;
-bad_out:
- return ret;
-}
-
-/* The inverse routine to net_open(). */
-static int
-net_close(struct net_device *dev)
-{
-#if ALLOW_DMA
- struct net_local *lp = netdev_priv(dev);
-#endif
-
- netif_stop_queue(dev);
-
- writereg(dev, PP_RxCFG, 0);
- writereg(dev, PP_TxCFG, 0);
- writereg(dev, PP_BufCFG, 0);
- writereg(dev, PP_BusCTL, 0);
-
- free_irq(dev->irq, dev);
-
-#if ALLOW_DMA
- if (lp->use_dma && lp->dma) {
- free_dma(dev->dma);
- release_dma_buff(lp);
- }
-#endif
-
- /* Update the statistics here. */
- return 0;
-}
-
-/* Get the current statistics.
- * This may be called with the card open or closed.
- */
-static struct net_device_stats *
-net_get_stats(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned long flags;
-
- spin_lock_irqsave(&lp->lock, flags);
- /* Update the statistics from the device registers. */
- dev->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6);
- dev->stats.collisions += (readreg(dev, PP_TxCol) >> 6);
- spin_unlock_irqrestore(&lp->lock, flags);
-
- return &dev->stats;
-}
-
-static void net_timeout(struct net_device *dev, unsigned int txqueue)
-{
- /* If we get here, some higher level has decided we are broken.
- There should really be a "kick me" function call instead. */
- cs89_dbg(0, err, "%s: transmit timed out, %s?\n",
- dev->name,
- tx_done(dev) ? "IRQ conflict" : "network cable problem");
- /* Try to restart the adaptor. */
- netif_wake_queue(dev);
-}
-
-static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned long flags;
-
- cs89_dbg(3, debug, "%s: sent %d byte packet of type %x\n",
- dev->name, skb->len,
- ((skb->data[ETH_ALEN + ETH_ALEN] << 8) |
- skb->data[ETH_ALEN + ETH_ALEN + 1]));
-
- /* keep the upload from being interrupted, since we
- * ask the chip to start transmitting before the
- * whole packet has been completely uploaded.
- */
-
- spin_lock_irqsave(&lp->lock, flags);
- netif_stop_queue(dev);
-
- /* initiate a transmit sequence */
- iowrite16(lp->send_cmd, lp->virt_addr + TX_CMD_PORT);
- iowrite16(skb->len, lp->virt_addr + TX_LEN_PORT);
-
- /* Test to see if the chip has allocated memory for the packet */
- if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) {
- /* Gasp! It hasn't. But that shouldn't happen since
- * we're waiting for TxOk, so return 1 and requeue this packet.
- */
-
- spin_unlock_irqrestore(&lp->lock, flags);
- cs89_dbg(0, err, "Tx buffer not free!\n");
- return NETDEV_TX_BUSY;
- }
- /* Write the contents of the packet */
- writewords(lp, TX_FRAME_PORT, skb->data, (skb->len + 1) >> 1);
- spin_unlock_irqrestore(&lp->lock, flags);
- dev->stats.tx_bytes += skb->len;
- dev_consume_skb_any(skb);
-
- /* We DO NOT call netif_wake_queue() here.
- * We also DO NOT call netif_start_queue().
- *
- * Either of these would cause another bottom half run through
- * net_send_packet() before this packet has fully gone out.
- * That causes us to hit the "Gasp!" above and the send is rescheduled.
- * it runs like a dog. We just return and wait for the Tx completion
- * interrupt handler to restart the netdevice layer
- */
-
- return NETDEV_TX_OK;
-}
-
-static void set_multicast_list(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned long flags;
- u16 cfg;
-
- spin_lock_irqsave(&lp->lock, flags);
- if (dev->flags & IFF_PROMISC)
- lp->rx_mode = RX_ALL_ACCEPT;
- else if ((dev->flags & IFF_ALLMULTI) || !netdev_mc_empty(dev))
- /* The multicast-accept list is initialized to accept-all,
- * and we rely on higher-level filtering for now.
- */
- lp->rx_mode = RX_MULTCAST_ACCEPT;
- else
- lp->rx_mode = 0;
-
- writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode);
-
- /* in promiscuous mode, we accept errored packets,
- * so we have to enable interrupts on them also
- */
- cfg = lp->curr_rx_cfg;
- if (lp->rx_mode == RX_ALL_ACCEPT)
- cfg |= RX_CRC_ERROR_ENBL | RX_RUNT_ENBL | RX_EXTRA_DATA_ENBL;
- writereg(dev, PP_RxCFG, cfg);
- spin_unlock_irqrestore(&lp->lock, flags);
-}
-
-static int set_mac_address(struct net_device *dev, void *p)
-{
- int i;
- struct sockaddr *addr = p;
-
- if (netif_running(dev))
- return -EBUSY;
-
- eth_hw_addr_set(dev, addr->sa_data);
-
- cs89_dbg(0, debug, "%s: Setting MAC address to %pM\n",
- dev->name, dev->dev_addr);
-
- /* set the Ethernet address */
- for (i = 0; i < ETH_ALEN / 2; i++)
- writereg(dev, PP_IA + i * 2,
- (dev->dev_addr[i * 2] |
- (dev->dev_addr[i * 2 + 1] << 8)));
-
- return 0;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling receive - used by netconsole and other diagnostic tools
- * to allow network i/o with interrupts disabled.
- */
-static void net_poll_controller(struct net_device *dev)
-{
- disable_irq(dev->irq);
- net_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static const struct net_device_ops net_ops = {
- .ndo_open = net_open,
- .ndo_stop = net_close,
- .ndo_tx_timeout = net_timeout,
- .ndo_start_xmit = net_send_packet,
- .ndo_get_stats = net_get_stats,
- .ndo_set_rx_mode = set_multicast_list,
- .ndo_set_mac_address = set_mac_address,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = net_poll_controller,
-#endif
- .ndo_validate_addr = eth_validate_addr,
-};
-
-static void __init reset_chip(struct net_device *dev)
-{
-#if !defined(CONFIG_MACH_MX31ADS)
- struct net_local *lp = netdev_priv(dev);
- unsigned long reset_start_time;
-
- writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET);
-
- /* wait 30 ms */
- msleep(30);
-
- if (lp->chip_type != CS8900) {
- /* Hardware problem requires PNP registers to be reconfigured after a reset */
- iowrite16(PP_CS8920_ISAINT, lp->virt_addr + ADD_PORT);
- iowrite8(dev->irq, lp->virt_addr + DATA_PORT);
- iowrite8(0, lp->virt_addr + DATA_PORT + 1);
-
- iowrite16(PP_CS8920_ISAMemB, lp->virt_addr + ADD_PORT);
- iowrite8((dev->mem_start >> 16) & 0xff,
- lp->virt_addr + DATA_PORT);
- iowrite8((dev->mem_start >> 8) & 0xff,
- lp->virt_addr + DATA_PORT + 1);
- }
-
- /* Wait until the chip is reset */
- reset_start_time = jiffies;
- while ((readreg(dev, PP_SelfST) & INIT_DONE) == 0 &&
- time_before(jiffies, reset_start_time + 2))
- ;
-#endif /* !CONFIG_MACH_MX31ADS */
-}
-
-/* This is the real probe routine.
- * Linux has a history of friendly device probes on the ISA bus.
- * A good device probes avoids doing writes, and
- * verifies that the correct device exists and functions.
- * Return 0 on success.
- */
-static int __init
-cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
-{
- struct net_local *lp = netdev_priv(dev);
- int i;
- int tmp;
- unsigned rev_type = 0;
- int eeprom_buff[CHKSUM_LEN];
- u8 addr[ETH_ALEN];
- int retval;
-
- /* Initialize the device structure. */
- if (!modular) {
- memset(lp, 0, sizeof(*lp));
- spin_lock_init(&lp->lock);
-#ifndef MODULE
-#if ALLOW_DMA
- if (g_cs89x0_dma) {
- lp->use_dma = 1;
- lp->dma = g_cs89x0_dma;
- lp->dmasize = 16; /* Could make this an option... */
- }
-#endif
- lp->force = g_cs89x0_media__force;
-#endif
- }
-
- pr_debug("PP_addr at %p[%x]: 0x%x\n",
- ioaddr, ADD_PORT, ioread16(ioaddr + ADD_PORT));
- iowrite16(PP_ChipID, ioaddr + ADD_PORT);
-
- tmp = ioread16(ioaddr + DATA_PORT);
- if (tmp != CHIP_EISA_ID_SIG) {
- pr_debug("%s: incorrect signature at %p[%x]: 0x%x!="
- CHIP_EISA_ID_SIG_STR "\n",
- dev->name, ioaddr, DATA_PORT, tmp);
- retval = -ENODEV;
- goto out1;
- }
-
- lp->virt_addr = ioaddr;
-
- /* get the chip type */
- rev_type = readreg(dev, PRODUCT_ID_ADD);
- lp->chip_type = rev_type & ~REVISON_BITS;
- lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';
-
- /* Check the chip type and revision in order to set the correct
- * send command. CS8920 revision C and CS8900 revision F can use
- * the faster send.
- */
- lp->send_cmd = TX_AFTER_381;
- if (lp->chip_type == CS8900 && lp->chip_revision >= 'F')
- lp->send_cmd = TX_NOW;
- if (lp->chip_type != CS8900 && lp->chip_revision >= 'C')
- lp->send_cmd = TX_NOW;
-
- pr_info_once("%s\n", version);
-
- pr_info("%s: cs89%c0%s rev %c found at %p ",
- dev->name,
- lp->chip_type == CS8900 ? '0' : '2',
- lp->chip_type == CS8920M ? "M" : "",
- lp->chip_revision,
- lp->virt_addr);
-
- reset_chip(dev);
-
- /* Here we read the current configuration of the chip.
- * If there is no Extended EEPROM then the idea is to not disturb
- * the chip configuration, it should have been correctly setup by
- * automatic EEPROM read on reset. So, if the chip says it read
- * the EEPROM the driver will always do *something* instead of
- * complain that adapter_cnf is 0.
- */
-
- if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) ==
- (EEPROM_OK | EEPROM_PRESENT)) {
- /* Load the MAC. */
- for (i = 0; i < ETH_ALEN / 2; i++) {
- unsigned int Addr;
- Addr = readreg(dev, PP_IA + i * 2);
- addr[i * 2] = Addr & 0xFF;
- addr[i * 2 + 1] = Addr >> 8;
- }
- eth_hw_addr_set(dev, addr);
-
- /* Load the Adapter Configuration.
- * Note: Barring any more specific information from some
- * other source (ie EEPROM+Schematics), we would not know
- * how to operate a 10Base2 interface on the AUI port.
- * However, since we do read the status of HCB1 and use
- * settings that always result in calls to control_dc_dc(dev,0)
- * a BNC interface should work if the enable pin
- * (dc/dc converter) is on HCB1.
- * It will be called AUI however.
- */
-
- lp->adapter_cnf = 0;
- i = readreg(dev, PP_LineCTL);
- /* Preserve the setting of the HCB1 pin. */
- if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL))
- lp->adapter_cnf |= A_CNF_DC_DC_POLARITY;
- /* Save the sqelch bit */
- if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH)
- lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH;
- /* Check if the card is in 10Base-t only mode */
- if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == 0)
- lp->adapter_cnf |= A_CNF_10B_T | A_CNF_MEDIA_10B_T;
- /* Check if the card is in AUI only mode */
- if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUI_ONLY)
- lp->adapter_cnf |= A_CNF_AUI | A_CNF_MEDIA_AUI;
- /* Check if the card is in Auto mode. */
- if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET)
- lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T |
- A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO;
-
- cs89_dbg(1, info, "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n",
- dev->name, i, lp->adapter_cnf);
-
- /* IRQ. Other chips already probe, see below. */
- if (lp->chip_type == CS8900)
- lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK;
-
- pr_cont("[Cirrus EEPROM] ");
- }
-
- pr_cont("\n");
-
- /* First check to see if an EEPROM is attached. */
-
- if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0)
- pr_warn("No EEPROM, relying on command line....\n");
- else if (get_eeprom_data(dev, START_EEPROM_DATA, CHKSUM_LEN, eeprom_buff) < 0) {
- pr_warn("EEPROM read failed, relying on command line\n");
- } else if (get_eeprom_cksum(START_EEPROM_DATA, CHKSUM_LEN, eeprom_buff) < 0) {
- /* Check if the chip was able to read its own configuration starting
- at 0 in the EEPROM*/
- if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) !=
- (EEPROM_OK | EEPROM_PRESENT))
- pr_warn("Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n");
-
- } else {
- /* This reads an extended EEPROM that is not documented
- * in the CS8900 datasheet.
- */
-
- /* get transmission control word but keep the autonegotiation bits */
- if (!lp->auto_neg_cnf)
- lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET / 2];
- /* Store adapter configuration */
- if (!lp->adapter_cnf)
- lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET / 2];
- /* Store ISA configuration */
- lp->isa_config = eeprom_buff[ISA_CNF_OFFSET / 2];
- dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET / 2] << 8;
-
- /* eeprom_buff has 32-bit ints, so we can't just memcpy it */
- /* store the initial memory base address */
- for (i = 0; i < ETH_ALEN / 2; i++) {
- addr[i * 2] = eeprom_buff[i];
- addr[i * 2 + 1] = eeprom_buff[i] >> 8;
- }
- eth_hw_addr_set(dev, addr);
- cs89_dbg(1, debug, "%s: new adapter_cnf: 0x%x\n",
- dev->name, lp->adapter_cnf);
- }
-
- /* allow them to force multiple transceivers. If they force multiple, autosense */
- {
- int count = 0;
- if (lp->force & FORCE_RJ45) {
- lp->adapter_cnf |= A_CNF_10B_T;
- count++;
- }
- if (lp->force & FORCE_AUI) {
- lp->adapter_cnf |= A_CNF_AUI;
- count++;
- }
- if (lp->force & FORCE_BNC) {
- lp->adapter_cnf |= A_CNF_10B_2;
- count++;
- }
- if (count > 1)
- lp->adapter_cnf |= A_CNF_MEDIA_AUTO;
- else if (lp->force & FORCE_RJ45)
- lp->adapter_cnf |= A_CNF_MEDIA_10B_T;
- else if (lp->force & FORCE_AUI)
- lp->adapter_cnf |= A_CNF_MEDIA_AUI;
- else if (lp->force & FORCE_BNC)
- lp->adapter_cnf |= A_CNF_MEDIA_10B_2;
- }
-
- cs89_dbg(1, debug, "%s: after force 0x%x, adapter_cnf=0x%x\n",
- dev->name, lp->force, lp->adapter_cnf);
-
- /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */
-
- /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */
-
- /* FIXME: we don't set the Ethernet address on the command line. Use
- * ifconfig IFACE hw ether AABBCCDDEEFF
- */
-
- pr_info("media %s%s%s",
- (lp->adapter_cnf & A_CNF_10B_T) ? "RJ-45," : "",
- (lp->adapter_cnf & A_CNF_AUI) ? "AUI," : "",
- (lp->adapter_cnf & A_CNF_10B_2) ? "BNC," : "");
-
- lp->irq_map = 0xffff;
-
- /* If this is a CS8900 then no pnp soft */
- if (lp->chip_type != CS8900 &&
- /* Check if the ISA IRQ has been set */
- (i = readreg(dev, PP_CS8920_ISAINT) & 0xff,
- (i != 0 && i < CS8920_NO_INTS))) {
- if (!dev->irq)
- dev->irq = i;
- } else {
- i = lp->isa_config & INT_NO_MASK;
-#if IS_ENABLED(CONFIG_CS89x0_ISA)
- if (lp->chip_type == CS8900) {
- /* Translate the IRQ using the IRQ mapping table. */
- if (i >= ARRAY_SIZE(cs8900_irq_map))
- pr_err("invalid ISA interrupt number %d\n", i);
- else
- i = cs8900_irq_map[i];
-
- lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */
- } else {
- int irq_map_buff[IRQ_MAP_LEN/2];
-
- if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA,
- IRQ_MAP_LEN / 2,
- irq_map_buff) >= 0) {
- if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT)
- lp->irq_map = ((irq_map_buff[0] >> 8) |
- (irq_map_buff[1] << 8));
- }
- }
-#endif
- if (!dev->irq)
- dev->irq = i;
- }
-
- pr_cont(" IRQ %d", dev->irq);
-
-#if ALLOW_DMA
- if (lp->use_dma) {
- get_dma_channel(dev);
- pr_cont(", DMA %d", dev->dma);
- } else
-#endif
- pr_cont(", programmed I/O");
-
- /* print the ethernet address. */
- pr_cont(", MAC %pM\n", dev->dev_addr);
-
- dev->netdev_ops = &net_ops;
- dev->watchdog_timeo = HZ;
-
- cs89_dbg(0, info, "cs89x0_probe1() successful\n");
-
- retval = register_netdev(dev);
- if (retval)
- goto out2;
- return 0;
-out2:
- iowrite16(PP_ChipID, lp->virt_addr + ADD_PORT);
-out1:
- return retval;
-}
-
-#if IS_ENABLED(CONFIG_CS89x0_ISA)
-/*
- * This function converts the I/O port address used by the cs89x0_probe() and
- * init_module() functions to the I/O memory address used by the
- * cs89x0_probe1() function.
- */
-static int __init
-cs89x0_ioport_probe(struct net_device *dev, unsigned long ioport, int modular)
-{
- struct net_local *lp = netdev_priv(dev);
- int ret;
- void __iomem *io_mem;
-
- if (!lp)
- return -ENOMEM;
-
- dev->base_addr = ioport;
-
- if (!request_region(ioport, NETCARD_IO_EXTENT, DRV_NAME)) {
- ret = -EBUSY;
- goto out;
- }
-
- io_mem = ioport_map(ioport & ~3, NETCARD_IO_EXTENT);
- if (!io_mem) {
- ret = -ENOMEM;
- goto release;
- }
-
- /* if they give us an odd I/O address, then do ONE write to
- * the address port, to get it back to address zero, where we
- * expect to find the EISA signature word. An IO with a base of 0x3
- * will skip the test for the ADD_PORT.
- */
- if (ioport & 1) {
- cs89_dbg(1, info, "%s: odd ioaddr 0x%lx\n", dev->name, ioport);
- if ((ioport & 2) != 2) {
- if ((ioread16(io_mem + ADD_PORT) & ADD_MASK) !=
- ADD_SIG) {
- pr_err("%s: bad signature 0x%x\n",
- dev->name, ioread16(io_mem + ADD_PORT));
- ret = -ENODEV;
- goto unmap;
- }
- }
- }
-
- ret = cs89x0_probe1(dev, io_mem, modular);
- if (!ret)
- goto out;
-unmap:
- ioport_unmap(io_mem);
-release:
- release_region(ioport, NETCARD_IO_EXTENT);
-out:
- return ret;
-}
-
-#ifndef MODULE
-/* Check for a network adaptor of this type, and return '0' iff one exists.
- * If dev->base_addr == 0, probe all likely locations.
- * If dev->base_addr == 1, always return failure.
- * If dev->base_addr == 2, allocate space for the device and return success
- * (detachable devices only).
- * Return 0 on success.
- */
-
-struct net_device * __init cs89x0_probe(int unit)
-{
- struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
- unsigned *port;
- int err = 0;
- int irq;
- int io;
-
- if (!dev)
- return ERR_PTR(-ENODEV);
-
- sprintf(dev->name, "eth%d", unit);
- netdev_boot_setup_check(dev);
- io = dev->base_addr;
- irq = dev->irq;
-
- cs89_dbg(0, info, "cs89x0_probe(0x%x)\n", io);
-
- if (io > 0x1ff) { /* Check a single specified location. */
- err = cs89x0_ioport_probe(dev, io, 0);
- } else if (io != 0) { /* Don't probe at all. */
- err = -ENXIO;
- } else {
- for (port = netcard_portlist; *port; port++) {
- if (cs89x0_ioport_probe(dev, *port, 0) == 0)
- break;
- dev->irq = irq;
- }
- if (!*port)
- err = -ENODEV;
- }
- if (err)
- goto out;
- return dev;
-out:
- free_netdev(dev);
- pr_warn("no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n");
- return ERR_PTR(err);
-}
-#else
-static struct net_device *dev_cs89x0;
-
-/* Support the 'debug' module parm even if we're compiled for non-debug to
- * avoid breaking someone's startup scripts
- */
-
-static int io;
-static int irq;
-static int debug;
-static char media[8];
-static int duplex = -1;
-
-static int use_dma; /* These generate unused var warnings if ALLOW_DMA = 0 */
-static int dma;
-static int dmasize = 16; /* or 64 */
-
-module_param_hw(io, int, ioport, 0);
-module_param_hw(irq, int, irq, 0);
-module_param(debug, int, 0);
-module_param_string(media, media, sizeof(media), 0);
-module_param(duplex, int, 0);
-module_param_hw(dma , int, dma, 0);
-module_param(dmasize , int, 0);
-module_param(use_dma , int, 0);
-MODULE_PARM_DESC(io, "cs89x0 I/O base address");
-MODULE_PARM_DESC(irq, "cs89x0 IRQ number");
-#if DEBUGGING
-MODULE_PARM_DESC(debug, "cs89x0 debug level (0-6)");
-#else
-MODULE_PARM_DESC(debug, "(ignored)");
-#endif
-MODULE_PARM_DESC(media, "Set cs89x0 adapter(s) media type(s) (rj45,bnc,aui)");
-/* No other value than -1 for duplex seems to be currently interpreted */
-MODULE_PARM_DESC(duplex, "(ignored)");
-#if ALLOW_DMA
-MODULE_PARM_DESC(dma , "cs89x0 ISA DMA channel; ignored if use_dma=0");
-MODULE_PARM_DESC(dmasize , "cs89x0 DMA size in kB (16,64); ignored if use_dma=0");
-MODULE_PARM_DESC(use_dma , "cs89x0 using DMA (0-1)");
-#else
-MODULE_PARM_DESC(dma , "(ignored)");
-MODULE_PARM_DESC(dmasize , "(ignored)");
-MODULE_PARM_DESC(use_dma , "(ignored)");
-#endif
-
-MODULE_AUTHOR("Mike Cruse, Russwll Nelson <nelson@crynwr.com>, Andrew Morton");
-MODULE_LICENSE("GPL");
-
-/*
- * media=t - specify media type
- * or media=2
- * or media=aui
- * or medai=auto
- * duplex=0 - specify forced half/full/autonegotiate duplex
- * debug=# - debug level
- *
- * Default Chip Configuration:
- * DMA Burst = enabled
- * IOCHRDY Enabled = enabled
- * UseSA = enabled
- * CS8900 defaults to half-duplex if not specified on command-line
- * CS8920 defaults to autoneg if not specified on command-line
- * Use reset defaults for other config parameters
- *
- * Assumptions:
- * media type specified is supported (circuitry is present)
- * if memory address is > 1MB, then required mem decode hw is present
- * if 10B-2, then agent other than driver will enable DC/DC converter
- * (hw or software util)
- */
-
-static int __init cs89x0_isa_init_module(void)
-{
- struct net_device *dev;
- struct net_local *lp;
- int ret = 0;
-
-#if DEBUGGING
- net_debug = debug;
-#else
- debug = 0;
-#endif
- dev = alloc_etherdev(sizeof(struct net_local));
- if (!dev)
- return -ENOMEM;
-
- dev->irq = irq;
- dev->base_addr = io;
- lp = netdev_priv(dev);
-
-#if ALLOW_DMA
- if (use_dma) {
- lp->use_dma = use_dma;
- lp->dma = dma;
- lp->dmasize = dmasize;
- }
-#endif
-
- spin_lock_init(&lp->lock);
-
- /* boy, they'd better get these right */
- if (!strcmp(media, "rj45"))
- lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
- else if (!strcmp(media, "aui"))
- lp->adapter_cnf = A_CNF_MEDIA_AUI | A_CNF_AUI;
- else if (!strcmp(media, "bnc"))
- lp->adapter_cnf = A_CNF_MEDIA_10B_2 | A_CNF_10B_2;
- else
- lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
-
- if (duplex == -1)
- lp->auto_neg_cnf = AUTO_NEG_ENABLE;
-
- if (io == 0) {
- pr_err("Module autoprobing not allowed\n");
- pr_err("Append io=0xNNN\n");
- ret = -EPERM;
- goto out;
- } else if (io <= 0x1ff) {
- ret = -ENXIO;
- goto out;
- }
-
-#if ALLOW_DMA
- if (use_dma && dmasize != 16 && dmasize != 64) {
- pr_err("dma size must be either 16K or 64K, not %dK\n",
- dmasize);
- ret = -EPERM;
- goto out;
- }
-#endif
- ret = cs89x0_ioport_probe(dev, io, 1);
- if (ret)
- goto out;
-
- dev_cs89x0 = dev;
- return 0;
-out:
- free_netdev(dev);
- return ret;
-}
-module_init(cs89x0_isa_init_module);
-
-static void __exit cs89x0_isa_cleanup_module(void)
-{
- struct net_local *lp = netdev_priv(dev_cs89x0);
-
- unregister_netdev(dev_cs89x0);
- iowrite16(PP_ChipID, lp->virt_addr + ADD_PORT);
- ioport_unmap(lp->virt_addr);
- release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT);
- free_netdev(dev_cs89x0);
-}
-module_exit(cs89x0_isa_cleanup_module);
-#endif /* MODULE */
-#endif /* CONFIG_CS89x0_ISA */
-
-#if IS_ENABLED(CONFIG_CS89x0_PLATFORM)
-static int __init cs89x0_platform_probe(struct platform_device *pdev)
-{
- struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
- void __iomem *virt_addr;
- int err;
-
- if (!dev)
- return -ENOMEM;
-
- dev->irq = platform_get_irq(pdev, 0);
- if (dev->irq < 0) {
- err = dev->irq;
- goto free;
- }
-
- virt_addr = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(virt_addr)) {
- err = PTR_ERR(virt_addr);
- goto free;
- }
-
- err = cs89x0_probe1(dev, virt_addr, 0);
- if (err) {
- dev_warn(&dev->dev, "no cs8900 or cs8920 detected\n");
- goto free;
- }
-
- platform_set_drvdata(pdev, dev);
- return 0;
-
-free:
- free_netdev(dev);
- return err;
-}
-
-static void cs89x0_platform_remove(struct platform_device *pdev)
-{
- struct net_device *dev = platform_get_drvdata(pdev);
-
- /* This platform_get_resource() call will not return NULL, because
- * the same call in cs89x0_platform_probe() has returned a non NULL
- * value.
- */
- unregister_netdev(dev);
- free_netdev(dev);
-}
-
-static const struct of_device_id __maybe_unused cs89x0_match[] = {
- { .compatible = "cirrus,cs8900", },
- { .compatible = "cirrus,cs8920", },
- { },
-};
-MODULE_DEVICE_TABLE(of, cs89x0_match);
-
-static struct platform_driver cs89x0_driver = {
- .driver = {
- .name = DRV_NAME,
- .of_match_table = of_match_ptr(cs89x0_match),
- },
- .remove = cs89x0_platform_remove,
-};
-
-module_platform_driver_probe(cs89x0_driver, cs89x0_platform_probe);
-
-#endif /* CONFIG_CS89x0_PLATFORM */
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Crystal Semiconductor (Now Cirrus Logic) CS89[02]0 network driver");
-MODULE_AUTHOR("Russell Nelson <nelson@crynwr.com>");
--
2.53.0
^ permalink raw reply related
* [PATCH net 10/18] drivers: net: smsc: smc91c92: Remove this driver
From: Andrew Lunn @ 2026-04-21 19:31 UTC (permalink / raw)
To: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Simon Horman, Jonathan Corbet, Shuah Khan
Cc: linux-kernel, netdev, linux-doc, Andrew Lunn
In-Reply-To: <20260421-v7-0-0-net-next-driver-removal-v1-v1-0-69517c689d1f@lunn.ch>
The smc91c92 was written by David A Hinds in 1999. It is an PCMCIA
device, so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
drivers/net/ethernet/smsc/Kconfig | 12 -
drivers/net/ethernet/smsc/Makefile | 1 -
drivers/net/ethernet/smsc/smc91c92_cs.c | 2059 -------------------------------
3 files changed, 2072 deletions(-)
diff --git a/drivers/net/ethernet/smsc/Kconfig b/drivers/net/ethernet/smsc/Kconfig
index d25bbcc98854..66bca803b19c 100644
--- a/drivers/net/ethernet/smsc/Kconfig
+++ b/drivers/net/ethernet/smsc/Kconfig
@@ -37,18 +37,6 @@ config SMC91X
The module will be called smc91x. If you want to compile it as a
module, say M here and read <file:Documentation/kbuild/modules.rst>.
-config PCMCIA_SMC91C92
- tristate "SMC 91Cxx PCMCIA support"
- depends on PCMCIA && HAS_IOPORT
- select CRC32
- select MII
- help
- Say Y here if you intend to attach an SMC 91Cxx compatible PCMCIA
- (PC-card) Ethernet or Fast Ethernet card to your computer.
-
- To compile this driver as a module, choose M here: the module will be
- called smc91c92_cs. If unsure, say N.
-
config EPIC100
tristate "SMC EtherPower II"
depends on PCI
diff --git a/drivers/net/ethernet/smsc/Makefile b/drivers/net/ethernet/smsc/Makefile
index afea0b94c2a4..ab6f03f7ba17 100644
--- a/drivers/net/ethernet/smsc/Makefile
+++ b/drivers/net/ethernet/smsc/Makefile
@@ -4,7 +4,6 @@
#
obj-$(CONFIG_SMC91X) += smc91x.o
-obj-$(CONFIG_PCMCIA_SMC91C92) += smc91c92_cs.o
obj-$(CONFIG_EPIC100) += epic100.o
obj-$(CONFIG_SMSC9420) += smsc9420.o
obj-$(CONFIG_SMSC911X) += smsc911x.o
diff --git a/drivers/net/ethernet/smsc/smc91c92_cs.c b/drivers/net/ethernet/smsc/smc91c92_cs.c
deleted file mode 100644
index cc0c75694351..000000000000
--- a/drivers/net/ethernet/smsc/smc91c92_cs.c
+++ /dev/null
@@ -1,2059 +0,0 @@
-/*======================================================================
-
- A PCMCIA ethernet driver for SMC91c92-based cards.
-
- This driver supports Megahertz PCMCIA ethernet cards; and
- Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem
- multifunction cards.
-
- Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
-
- smc91c92_cs.c 1.122 2002/10/25 06:26:39
-
- This driver contains code written by Donald Becker
- (becker@scyld.com), Rowan Hughes (x-csrdh@jcu.edu.au),
- David Hinds (dahinds@users.sourceforge.net), and Erik Stahlman
- (erik@vt.edu). Donald wrote the SMC 91c92 code using parts of
- Erik's SMC 91c94 driver. Rowan wrote a similar driver, and I've
- incorporated some parts of his driver here. I (Dave) wrote most
- of the PCMCIA glue code, and the Ositech support code. Kelly
- Stephens (kstephen@holli.com) added support for the Motorola
- Mariner, with help from Allen Brost.
-
- This software may be used and distributed according to the terms of
- the GNU General Public License, incorporated herein by reference.
-
-======================================================================*/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/crc32.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/ioport.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/jiffies.h>
-#include <linux/firmware.h>
-
-#include <pcmcia/cistpl.h>
-#include <pcmcia/cisreg.h>
-#include <pcmcia/ciscode.h>
-#include <pcmcia/ds.h>
-#include <pcmcia/ss.h>
-
-#include <asm/io.h>
-#include <linux/uaccess.h>
-
-/*====================================================================*/
-
-static const char *if_names[] = { "auto", "10baseT", "10base2"};
-
-/* Firmware name */
-#define FIRMWARE_NAME "ositech/Xilinx7OD.bin"
-
-/* Module parameters */
-
-MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(FIRMWARE_NAME);
-
-#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
-
-/*
- Transceiver/media type.
- 0 = auto
- 1 = 10baseT (and autoselect if #define AUTOSELECT),
- 2 = AUI/10base2,
-*/
-INT_MODULE_PARM(if_port, 0);
-
-
-#define DRV_NAME "smc91c92_cs"
-#define DRV_VERSION "1.123"
-
-/*====================================================================*/
-
-/* Operational parameter that usually are not changed. */
-
-/* Time in jiffies before concluding Tx hung */
-#define TX_TIMEOUT ((400*HZ)/1000)
-
-/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
-#define INTR_WORK 4
-
-/* Times to check the check the chip before concluding that it doesn't
- currently have room for another Tx packet. */
-#define MEMORY_WAIT_TIME 8
-
-struct smc_private {
- struct pcmcia_device *p_dev;
- spinlock_t lock;
- u_short manfid;
- u_short cardid;
-
- struct sk_buff *saved_skb;
- int packets_waiting;
- void __iomem *base;
- u_short cfg;
- struct timer_list media;
- int watchdog, tx_err;
- u_short media_status;
- u_short fast_poll;
- u_short link_status;
- struct mii_if_info mii_if;
- int duplex;
- int rx_ovrn;
- unsigned long last_rx;
-};
-
-/* Special definitions for Megahertz multifunction cards */
-#define MEGAHERTZ_ISR 0x0380
-
-/* Special function registers for Motorola Mariner */
-#define MOT_LAN 0x0000
-#define MOT_UART 0x0020
-#define MOT_EEPROM 0x20
-
-#define MOT_NORMAL \
-(COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
-
-/* Special function registers for Ositech cards */
-#define OSITECH_AUI_CTL 0x0c
-#define OSITECH_PWRDOWN 0x0d
-#define OSITECH_RESET 0x0e
-#define OSITECH_ISR 0x0f
-#define OSITECH_AUI_PWR 0x0c
-#define OSITECH_RESET_ISR 0x0e
-
-#define OSI_AUI_PWR 0x40
-#define OSI_LAN_PWRDOWN 0x02
-#define OSI_MODEM_PWRDOWN 0x01
-#define OSI_LAN_RESET 0x02
-#define OSI_MODEM_RESET 0x01
-
-/* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
-#define BANK_SELECT 14 /* Window select register. */
-#define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
-
-/* Bank 0 registers. */
-#define TCR 0 /* transmit control register */
-#define TCR_CLEAR 0 /* do NOTHING */
-#define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
-#define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
-#define TCR_MONCSN 0x0400 /* Monitor Carrier. */
-#define TCR_FDUPLX 0x0800 /* Full duplex mode. */
-#define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
-
-#define EPH 2 /* Ethernet Protocol Handler report. */
-#define EPH_TX_SUC 0x0001
-#define EPH_SNGLCOL 0x0002
-#define EPH_MULCOL 0x0004
-#define EPH_LTX_MULT 0x0008
-#define EPH_16COL 0x0010
-#define EPH_SQET 0x0020
-#define EPH_LTX_BRD 0x0040
-#define EPH_TX_DEFR 0x0080
-#define EPH_LAT_COL 0x0200
-#define EPH_LOST_CAR 0x0400
-#define EPH_EXC_DEF 0x0800
-#define EPH_CTR_ROL 0x1000
-#define EPH_RX_OVRN 0x2000
-#define EPH_LINK_OK 0x4000
-#define EPH_TX_UNRN 0x8000
-#define MEMINFO 8 /* Memory Information Register */
-#define MEMCFG 10 /* Memory Configuration Register */
-
-/* Bank 1 registers. */
-#define CONFIG 0
-#define CFG_MII_SELECT 0x8000 /* 91C100 only */
-#define CFG_NO_WAIT 0x1000
-#define CFG_FULL_STEP 0x0400
-#define CFG_SET_SQLCH 0x0200
-#define CFG_AUI_SELECT 0x0100
-#define CFG_16BIT 0x0080
-#define CFG_DIS_LINK 0x0040
-#define CFG_STATIC 0x0030
-#define CFG_IRQ_SEL_1 0x0004
-#define CFG_IRQ_SEL_0 0x0002
-#define BASE_ADDR 2
-#define ADDR0 4
-#define GENERAL 10
-#define CONTROL 12
-#define CTL_STORE 0x0001
-#define CTL_RELOAD 0x0002
-#define CTL_EE_SELECT 0x0004
-#define CTL_TE_ENABLE 0x0020
-#define CTL_CR_ENABLE 0x0040
-#define CTL_LE_ENABLE 0x0080
-#define CTL_AUTO_RELEASE 0x0800
-#define CTL_POWERDOWN 0x2000
-
-/* Bank 2 registers. */
-#define MMU_CMD 0
-#define MC_ALLOC 0x20 /* or with number of 256 byte packets */
-#define MC_RESET 0x40
-#define MC_RELEASE 0x80 /* remove and release the current rx packet */
-#define MC_FREEPKT 0xA0 /* Release packet in PNR register */
-#define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
-#define PNR_ARR 2
-#define FIFO_PORTS 4
-#define FP_RXEMPTY 0x8000
-#define POINTER 6
-#define PTR_AUTO_INC 0x0040
-#define PTR_READ 0x2000
-#define PTR_AUTOINC 0x4000
-#define PTR_RCV 0x8000
-#define DATA_1 8
-#define INTERRUPT 12
-#define IM_RCV_INT 0x1
-#define IM_TX_INT 0x2
-#define IM_TX_EMPTY_INT 0x4
-#define IM_ALLOC_INT 0x8
-#define IM_RX_OVRN_INT 0x10
-#define IM_EPH_INT 0x20
-
-#define RCR 4
-enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
- RxEnable = 0x0100, RxStripCRC = 0x0200};
-#define RCR_SOFTRESET 0x8000 /* resets the chip */
-#define RCR_STRIP_CRC 0x200 /* strips CRC */
-#define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
-#define RCR_ALMUL 0x4 /* receive all multicast packets */
-#define RCR_PROMISC 0x2 /* enable promiscuous mode */
-
-/* the normal settings for the RCR register : */
-#define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
-#define RCR_CLEAR 0x0 /* set it to a base state */
-#define COUNTER 6
-
-/* BANK 3 -- not the same values as in smc9194! */
-#define MULTICAST0 0
-#define MULTICAST2 2
-#define MULTICAST4 4
-#define MULTICAST6 6
-#define MGMT 8
-#define REVISION 0x0a
-
-/* Transmit status bits. */
-#define TS_SUCCESS 0x0001
-#define TS_16COL 0x0010
-#define TS_LATCOL 0x0200
-#define TS_LOSTCAR 0x0400
-
-/* Receive status bits. */
-#define RS_ALGNERR 0x8000
-#define RS_BADCRC 0x2000
-#define RS_ODDFRAME 0x1000
-#define RS_TOOLONG 0x0800
-#define RS_TOOSHORT 0x0400
-#define RS_MULTICAST 0x0001
-#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
-
-#define set_bits(v, p) outw(inw(p)|(v), (p))
-#define mask_bits(v, p) outw(inw(p)&(v), (p))
-
-/*====================================================================*/
-
-static void smc91c92_detach(struct pcmcia_device *p_dev);
-static int smc91c92_config(struct pcmcia_device *link);
-static void smc91c92_release(struct pcmcia_device *link);
-
-static int smc_open(struct net_device *dev);
-static int smc_close(struct net_device *dev);
-static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static void smc_tx_timeout(struct net_device *dev, unsigned int txqueue);
-static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
- struct net_device *dev);
-static irqreturn_t smc_interrupt(int irq, void *dev_id);
-static void smc_rx(struct net_device *dev);
-static void set_rx_mode(struct net_device *dev);
-static int s9k_config(struct net_device *dev, struct ifmap *map);
-static void smc_set_xcvr(struct net_device *dev, int if_port);
-static void smc_reset(struct net_device *dev);
-static void media_check(struct timer_list *t);
-static void mdio_sync(unsigned int addr);
-static int mdio_read(struct net_device *dev, int phy_id, int loc);
-static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
-static int smc_link_ok(struct net_device *dev);
-static const struct ethtool_ops ethtool_ops;
-
-static const struct net_device_ops smc_netdev_ops = {
- .ndo_open = smc_open,
- .ndo_stop = smc_close,
- .ndo_start_xmit = smc_start_xmit,
- .ndo_tx_timeout = smc_tx_timeout,
- .ndo_set_config = s9k_config,
- .ndo_set_rx_mode = set_rx_mode,
- .ndo_eth_ioctl = smc_ioctl,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-static int smc91c92_probe(struct pcmcia_device *link)
-{
- struct smc_private *smc;
- struct net_device *dev;
-
- dev_dbg(&link->dev, "smc91c92_attach()\n");
-
- /* Create new ethernet device */
- dev = alloc_etherdev(sizeof(struct smc_private));
- if (!dev)
- return -ENOMEM;
- smc = netdev_priv(dev);
- smc->p_dev = link;
- link->priv = dev;
-
- spin_lock_init(&smc->lock);
-
- /* The SMC91c92-specific entries in the device structure. */
- dev->netdev_ops = &smc_netdev_ops;
- dev->ethtool_ops = ðtool_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
-
- smc->mii_if.dev = dev;
- smc->mii_if.mdio_read = mdio_read;
- smc->mii_if.mdio_write = mdio_write;
- smc->mii_if.phy_id_mask = 0x1f;
- smc->mii_if.reg_num_mask = 0x1f;
-
- return smc91c92_config(link);
-} /* smc91c92_attach */
-
-static void smc91c92_detach(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- dev_dbg(&link->dev, "smc91c92_detach\n");
-
- unregister_netdev(dev);
-
- smc91c92_release(link);
-
- free_netdev(dev);
-} /* smc91c92_detach */
-
-/*====================================================================*/
-
-static int cvt_ascii_address(struct net_device *dev, char *s)
-{
- u8 mac[ETH_ALEN];
- int i, j, da, c;
-
- if (strlen(s) != 12)
- return -1;
- for (i = 0; i < 6; i++) {
- da = 0;
- for (j = 0; j < 2; j++) {
- c = *s++;
- da <<= 4;
- da += ((c >= '0') && (c <= '9')) ?
- (c - '0') : ((c & 0x0f) + 9);
- }
- mac[i] = da;
- }
- eth_hw_addr_set(dev, mac);
- return 0;
-}
-
-/*====================================================================
-
- Configuration stuff for Megahertz cards
-
- mhz_3288_power() is used to power up a 3288's ethernet chip.
- mhz_mfc_config() handles socket setup for multifunction (1144
- and 3288) cards. mhz_setup() gets a card's hardware ethernet
- address.
-
-======================================================================*/
-
-static int mhz_3288_power(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- struct smc_private *smc = netdev_priv(dev);
- u_char tmp;
-
- /* Read the ISR twice... */
- readb(smc->base+MEGAHERTZ_ISR);
- udelay(5);
- readb(smc->base+MEGAHERTZ_ISR);
-
- /* Pause 200ms... */
- mdelay(200);
-
- /* Now read and write the COR... */
- tmp = readb(smc->base + link->config_base + CISREG_COR);
- udelay(5);
- writeb(tmp, smc->base + link->config_base + CISREG_COR);
-
- return 0;
-}
-
-static int mhz_mfc_config_check(struct pcmcia_device *p_dev, void *priv_data)
-{
- int k;
- p_dev->io_lines = 16;
- p_dev->resource[1]->start = p_dev->resource[0]->start;
- p_dev->resource[1]->end = 8;
- p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
- p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
- p_dev->resource[0]->end = 16;
- p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
- p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
- for (k = 0; k < 0x400; k += 0x10) {
- if (k & 0x80)
- continue;
- p_dev->resource[0]->start = k ^ 0x300;
- if (!pcmcia_request_io(p_dev))
- return 0;
- }
- return -ENODEV;
-}
-
-static int mhz_mfc_config(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- struct smc_private *smc = netdev_priv(dev);
- unsigned int offset;
- int i;
-
- link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ |
- CONF_AUTO_SET_IO;
-
- /* The Megahertz combo cards have modem-like CIS entries, so
- we have to explicitly try a bunch of port combinations. */
- if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
- return -ENODEV;
-
- dev->base_addr = link->resource[0]->start;
-
- /* Allocate a memory window, for accessing the ISR */
- link->resource[2]->flags = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
- link->resource[2]->start = link->resource[2]->end = 0;
- i = pcmcia_request_window(link, link->resource[2], 0);
- if (i != 0)
- return -ENODEV;
-
- smc->base = ioremap(link->resource[2]->start,
- resource_size(link->resource[2]));
- offset = (smc->manfid == MANFID_MOTOROLA) ? link->config_base : 0;
- i = pcmcia_map_mem_page(link, link->resource[2], offset);
- if ((i == 0) &&
- (smc->manfid == MANFID_MEGAHERTZ) &&
- (smc->cardid == PRODID_MEGAHERTZ_EM3288))
- mhz_3288_power(link);
-
- return 0;
-}
-
-static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
- tuple_t *tuple,
- void *priv)
-{
- struct net_device *dev = priv;
- cisparse_t parse;
- u8 *buf;
-
- if (pcmcia_parse_tuple(tuple, &parse))
- return -EINVAL;
-
- buf = parse.version_1.str + parse.version_1.ofs[3];
-
- if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
- return 0;
-
- return -EINVAL;
-};
-
-static int mhz_setup(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- size_t len;
- u8 *buf;
- int rc;
-
- /* Read the station address from the CIS. It is stored as the last
- (fourth) string in the Version 1 Version/ID tuple. */
- if ((link->prod_id[3]) &&
- (cvt_ascii_address(dev, link->prod_id[3]) == 0))
- return 0;
-
- /* Workarounds for broken cards start here. */
- /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
- if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
- return 0;
-
- /* Another possibility: for the EM3288, in a special tuple */
- rc = -1;
- len = pcmcia_get_tuple(link, 0x81, &buf);
- if (buf && len >= 13) {
- buf[12] = '\0';
- if (cvt_ascii_address(dev, buf) == 0)
- rc = 0;
- }
- kfree(buf);
-
- return rc;
-};
-
-/*======================================================================
-
- Configuration stuff for the Motorola Mariner
-
- mot_config() writes directly to the Mariner configuration
- registers because the CIS is just bogus.
-
-======================================================================*/
-
-static void mot_config(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
- unsigned int iouart = link->resource[1]->start;
-
- /* Set UART base address and force map with COR bit 1 */
- writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
- writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
- writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
-
- /* Set SMC base address and force map with COR bit 1 */
- writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
- writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
- writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
-
- /* Wait for things to settle down */
- mdelay(100);
-}
-
-static int mot_setup(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- unsigned int ioaddr = dev->base_addr;
- int i, wait, loop;
- u8 mac[ETH_ALEN];
- u_int addr;
-
- /* Read Ethernet address from Serial EEPROM */
-
- for (i = 0; i < 3; i++) {
- SMC_SELECT_BANK(2);
- outw(MOT_EEPROM + i, ioaddr + POINTER);
- SMC_SELECT_BANK(1);
- outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
-
- for (loop = wait = 0; loop < 200; loop++) {
- udelay(10);
- wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
- if (wait == 0) break;
- }
-
- if (wait)
- return -1;
-
- addr = inw(ioaddr + GENERAL);
- mac[2*i] = addr & 0xff;
- mac[2*i+1] = (addr >> 8) & 0xff;
- }
- eth_hw_addr_set(dev, mac);
-
- return 0;
-}
-
-/*====================================================================*/
-
-static int smc_configcheck(struct pcmcia_device *p_dev, void *priv_data)
-{
- p_dev->resource[0]->end = 16;
- p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
- p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
-
- return pcmcia_request_io(p_dev);
-}
-
-static int smc_config(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- int i;
-
- link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
-
- i = pcmcia_loop_config(link, smc_configcheck, NULL);
- if (!i)
- dev->base_addr = link->resource[0]->start;
-
- return i;
-}
-
-
-static int smc_setup(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- /* Check for a LAN function extension tuple */
- if (!pcmcia_get_mac_from_cis(link, dev))
- return 0;
-
- /* Try the third string in the Version 1 Version/ID tuple. */
- if (link->prod_id[2]) {
- if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
- return 0;
- }
- return -1;
-}
-
-/*====================================================================*/
-
-static int osi_config(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
- int i, j;
-
- link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ;
- link->resource[0]->end = 64;
- link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
- link->resource[1]->end = 8;
-
- /* Enable Hard Decode, LAN, Modem */
- link->io_lines = 16;
- link->config_index = 0x23;
-
- for (i = j = 0; j < 4; j++) {
- link->resource[1]->start = com[j];
- i = pcmcia_request_io(link);
- if (i == 0)
- break;
- }
- if (i != 0) {
- /* Fallback: turn off hard decode */
- link->config_index = 0x03;
- link->resource[1]->end = 0;
- i = pcmcia_request_io(link);
- }
- dev->base_addr = link->resource[0]->start + 0x10;
- return i;
-}
-
-static int osi_load_firmware(struct pcmcia_device *link)
-{
- const struct firmware *fw;
- int i, err;
-
- err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
- if (err) {
- pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
- return err;
- }
-
- /* Download the Seven of Diamonds firmware */
- for (i = 0; i < fw->size; i++) {
- outb(fw->data[i], link->resource[0]->start + 2);
- udelay(50);
- }
- release_firmware(fw);
- return err;
-}
-
-static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
- tuple_t *tuple,
- void *priv)
-{
- struct net_device *dev = priv;
-
- if (tuple->TupleDataLen < 8)
- return -EINVAL;
- if (tuple->TupleData[0] != 0x04)
- return -EINVAL;
-
- eth_hw_addr_set(dev, &tuple->TupleData[2]);
- return 0;
-};
-
-
-static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
-{
- struct net_device *dev = link->priv;
- int rc;
-
- /* Read the station address from tuple 0x90, subtuple 0x04 */
- if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
- return -1;
-
- if (((manfid == MANFID_OSITECH) &&
- (cardid == PRODID_OSITECH_SEVEN)) ||
- ((manfid == MANFID_PSION) &&
- (cardid == PRODID_PSION_NET100))) {
- rc = osi_load_firmware(link);
- if (rc)
- return rc;
- } else if (manfid == MANFID_OSITECH) {
- /* Make sure both functions are powered up */
- set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR);
- /* Now, turn on the interrupt for both card functions */
- set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR);
- dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
- inw(link->resource[0]->start + OSITECH_AUI_PWR),
- inw(link->resource[0]->start + OSITECH_RESET_ISR));
- }
- return 0;
-}
-
-static int smc91c92_suspend(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- if (link->open)
- netif_device_detach(dev);
-
- return 0;
-}
-
-static int smc91c92_resume(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- struct smc_private *smc = netdev_priv(dev);
- int i;
-
- if ((smc->manfid == MANFID_MEGAHERTZ) &&
- (smc->cardid == PRODID_MEGAHERTZ_EM3288))
- mhz_3288_power(link);
- if (smc->manfid == MANFID_MOTOROLA)
- mot_config(link);
- if ((smc->manfid == MANFID_OSITECH) &&
- (smc->cardid != PRODID_OSITECH_SEVEN)) {
- /* Power up the card and enable interrupts */
- set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
- set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
- }
- if (((smc->manfid == MANFID_OSITECH) &&
- (smc->cardid == PRODID_OSITECH_SEVEN)) ||
- ((smc->manfid == MANFID_PSION) &&
- (smc->cardid == PRODID_PSION_NET100))) {
- i = osi_load_firmware(link);
- if (i) {
- netdev_err(dev, "Failed to load firmware\n");
- return i;
- }
- }
- if (link->open) {
- smc_reset(dev);
- netif_device_attach(dev);
- }
-
- return 0;
-}
-
-
-/*======================================================================
-
- This verifies that the chip is some SMC91cXX variant, and returns
- the revision code if successful. Otherwise, it returns -ENODEV.
-
-======================================================================*/
-
-static int check_sig(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- unsigned int ioaddr = dev->base_addr;
- int width;
- u_short s;
-
- SMC_SELECT_BANK(1);
- if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
- /* Try powering up the chip */
- outw(0, ioaddr + CONTROL);
- mdelay(55);
- }
-
- /* Try setting bus width */
- width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO);
- s = inb(ioaddr + CONFIG);
- if (width)
- s |= CFG_16BIT;
- else
- s &= ~CFG_16BIT;
- outb(s, ioaddr + CONFIG);
-
- /* Check Base Address Register to make sure bus width is OK */
- s = inw(ioaddr + BASE_ADDR);
- if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
- ((s >> 8) != (s & 0xff))) {
- SMC_SELECT_BANK(3);
- s = inw(ioaddr + REVISION);
- return s & 0xff;
- }
-
- if (width) {
- netdev_info(dev, "using 8-bit IO window\n");
-
- smc91c92_suspend(link);
- pcmcia_fixup_iowidth(link);
- smc91c92_resume(link);
- return check_sig(link);
- }
- return -ENODEV;
-}
-
-static int smc91c92_config(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- struct smc_private *smc = netdev_priv(dev);
- char *name;
- int i, rev, j = 0;
- unsigned int ioaddr;
- u_long mir;
-
- dev_dbg(&link->dev, "smc91c92_config\n");
-
- smc->manfid = link->manf_id;
- smc->cardid = link->card_id;
-
- if ((smc->manfid == MANFID_OSITECH) &&
- (smc->cardid != PRODID_OSITECH_SEVEN)) {
- i = osi_config(link);
- } else if ((smc->manfid == MANFID_MOTOROLA) ||
- ((smc->manfid == MANFID_MEGAHERTZ) &&
- ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
- (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
- i = mhz_mfc_config(link);
- } else {
- i = smc_config(link);
- }
- if (i)
- goto config_failed;
-
- i = pcmcia_request_irq(link, smc_interrupt);
- if (i)
- goto config_failed;
- i = pcmcia_enable_device(link);
- if (i)
- goto config_failed;
-
- if (smc->manfid == MANFID_MOTOROLA)
- mot_config(link);
-
- dev->irq = link->irq;
-
- if ((if_port >= 0) && (if_port <= 2))
- dev->if_port = if_port;
- else
- dev_notice(&link->dev, "invalid if_port requested\n");
-
- switch (smc->manfid) {
- case MANFID_OSITECH:
- case MANFID_PSION:
- i = osi_setup(link, smc->manfid, smc->cardid); break;
- case MANFID_SMC:
- case MANFID_NEW_MEDIA:
- i = smc_setup(link); break;
- case 0x128: /* For broken Megahertz cards */
- case MANFID_MEGAHERTZ:
- i = mhz_setup(link); break;
- case MANFID_MOTOROLA:
- default: /* get the hw address from EEPROM */
- i = mot_setup(link); break;
- }
-
- if (i != 0) {
- dev_notice(&link->dev, "Unable to find hardware address.\n");
- goto config_failed;
- }
-
- smc->duplex = 0;
- smc->rx_ovrn = 0;
-
- rev = check_sig(link);
- name = "???";
- if (rev > 0)
- switch (rev >> 4) {
- case 3: name = "92"; break;
- case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
- case 5: name = "95"; break;
- case 7: name = "100"; break;
- case 8: name = "100-FD"; break;
- case 9: name = "110"; break;
- }
-
- ioaddr = dev->base_addr;
- if (rev > 0) {
- u_long mcr;
- SMC_SELECT_BANK(0);
- mir = inw(ioaddr + MEMINFO) & 0xff;
- if (mir == 0xff) mir++;
- /* Get scale factor for memory size */
- mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
- mir *= 128 * (1<<((mcr >> 9) & 7));
- SMC_SELECT_BANK(1);
- smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
- smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
- if (smc->manfid == MANFID_OSITECH)
- smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
- if ((rev >> 4) >= 7)
- smc->cfg |= CFG_MII_SELECT;
- } else
- mir = 0;
-
- if (smc->cfg & CFG_MII_SELECT) {
- SMC_SELECT_BANK(3);
-
- for (i = 0; i < 32; i++) {
- j = mdio_read(dev, i, 1);
- if ((j != 0) && (j != 0xffff)) break;
- }
- smc->mii_if.phy_id = (i < 32) ? i : -1;
-
- SMC_SELECT_BANK(0);
- }
-
- SET_NETDEV_DEV(dev, &link->dev);
-
- if (register_netdev(dev) != 0) {
- dev_err(&link->dev, "register_netdev() failed\n");
- goto config_undo;
- }
-
- netdev_info(dev, "smc91c%s rev %d: io %#3lx, irq %d, hw_addr %pM\n",
- name, (rev & 0x0f), dev->base_addr, dev->irq, dev->dev_addr);
-
- if (rev > 0) {
- if (mir & 0x3ff)
- netdev_info(dev, " %lu byte", mir);
- else
- netdev_info(dev, " %lu kb", mir>>10);
- pr_cont(" buffer, %s xcvr\n",
- (smc->cfg & CFG_MII_SELECT) ? "MII" : if_names[dev->if_port]);
- }
-
- if (smc->cfg & CFG_MII_SELECT) {
- if (smc->mii_if.phy_id != -1) {
- netdev_dbg(dev, " MII transceiver at index %d, status %x\n",
- smc->mii_if.phy_id, j);
- } else {
- netdev_notice(dev, " No MII transceivers found!\n");
- }
- }
- return 0;
-
-config_undo:
- unregister_netdev(dev);
-config_failed:
- smc91c92_release(link);
- free_netdev(dev);
- return -ENODEV;
-} /* smc91c92_config */
-
-static void smc91c92_release(struct pcmcia_device *link)
-{
- dev_dbg(&link->dev, "smc91c92_release\n");
- if (link->resource[2]->end) {
- struct net_device *dev = link->priv;
- struct smc_private *smc = netdev_priv(dev);
- iounmap(smc->base);
- }
- pcmcia_disable_device(link);
-}
-
-/*======================================================================
-
- MII interface support for SMC91cXX based cards
-======================================================================*/
-
-#define MDIO_SHIFT_CLK 0x04
-#define MDIO_DATA_OUT 0x01
-#define MDIO_DIR_WRITE 0x08
-#define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
-#define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
-#define MDIO_DATA_READ 0x02
-
-static void mdio_sync(unsigned int addr)
-{
- int bits;
- for (bits = 0; bits < 32; bits++) {
- outb(MDIO_DATA_WRITE1, addr);
- outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
- }
-}
-
-static int mdio_read(struct net_device *dev, int phy_id, int loc)
-{
- unsigned int addr = dev->base_addr + MGMT;
- u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
- int i, retval = 0;
-
- mdio_sync(addr);
- for (i = 13; i >= 0; i--) {
- int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
- outb(dat, addr);
- outb(dat | MDIO_SHIFT_CLK, addr);
- }
- for (i = 19; i > 0; i--) {
- outb(0, addr);
- retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
- outb(MDIO_SHIFT_CLK, addr);
- }
- return (retval>>1) & 0xffff;
-}
-
-static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
-{
- unsigned int addr = dev->base_addr + MGMT;
- u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
- int i;
-
- mdio_sync(addr);
- for (i = 31; i >= 0; i--) {
- int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
- outb(dat, addr);
- outb(dat | MDIO_SHIFT_CLK, addr);
- }
- for (i = 1; i >= 0; i--) {
- outb(0, addr);
- outb(MDIO_SHIFT_CLK, addr);
- }
-}
-
-/*======================================================================
-
- The driver core code, most of which should be common with a
- non-PCMCIA implementation.
-
-======================================================================*/
-
-#ifdef PCMCIA_DEBUG
-static void smc_dump(struct net_device *dev)
-{
- unsigned int ioaddr = dev->base_addr;
- u_short i, w, save;
- save = inw(ioaddr + BANK_SELECT);
- for (w = 0; w < 4; w++) {
- SMC_SELECT_BANK(w);
- netdev_dbg(dev, "bank %d: ", w);
- for (i = 0; i < 14; i += 2)
- pr_cont(" %04x", inw(ioaddr + i));
- pr_cont("\n");
- }
- outw(save, ioaddr + BANK_SELECT);
-}
-#endif
-
-static int smc_open(struct net_device *dev)
-{
- struct smc_private *smc = netdev_priv(dev);
- struct pcmcia_device *link = smc->p_dev;
-
- dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
- dev->name, dev, inw(dev->base_addr + BANK_SELECT));
-#ifdef PCMCIA_DEBUG
- smc_dump(dev);
-#endif
-
- /* Check that the PCMCIA card is still here. */
- if (!pcmcia_dev_present(link))
- return -ENODEV;
- /* Physical device present signature. */
- if (check_sig(link) < 0) {
- netdev_info(dev, "Yikes! Bad chip signature!\n");
- return -ENODEV;
- }
- link->open++;
-
- netif_start_queue(dev);
- smc->saved_skb = NULL;
- smc->packets_waiting = 0;
-
- smc_reset(dev);
- timer_setup(&smc->media, media_check, 0);
- mod_timer(&smc->media, jiffies + HZ);
-
- return 0;
-} /* smc_open */
-
-/*====================================================================*/
-
-static int smc_close(struct net_device *dev)
-{
- struct smc_private *smc = netdev_priv(dev);
- struct pcmcia_device *link = smc->p_dev;
- unsigned int ioaddr = dev->base_addr;
-
- dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
- dev->name, inw(ioaddr + BANK_SELECT));
-
- netif_stop_queue(dev);
-
- /* Shut off all interrupts, and turn off the Tx and Rx sections.
- Don't bother to check for chip present. */
- SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
- outw(0, ioaddr + INTERRUPT);
- SMC_SELECT_BANK(0);
- mask_bits(0xff00, ioaddr + RCR);
- mask_bits(0xff00, ioaddr + TCR);
-
- /* Put the chip into power-down mode. */
- SMC_SELECT_BANK(1);
- outw(CTL_POWERDOWN, ioaddr + CONTROL );
-
- link->open--;
- timer_delete_sync(&smc->media);
-
- return 0;
-} /* smc_close */
-
-/*======================================================================
-
- Transfer a packet to the hardware and trigger the packet send.
- This may be called at either from either the Tx queue code
- or the interrupt handler.
-
-======================================================================*/
-
-static void smc_hardware_send_packet(struct net_device * dev)
-{
- struct smc_private *smc = netdev_priv(dev);
- struct sk_buff *skb = smc->saved_skb;
- unsigned int ioaddr = dev->base_addr;
- u_char packet_no;
-
- if (!skb) {
- netdev_err(dev, "In XMIT with no packet to send\n");
- return;
- }
-
- /* There should be a packet slot waiting. */
- packet_no = inw(ioaddr + PNR_ARR) >> 8;
- if (packet_no & 0x80) {
- /* If not, there is a hardware problem! Likely an ejected card. */
- netdev_warn(dev, "hardware Tx buffer allocation failed, status %#2.2x\n",
- packet_no);
- dev_kfree_skb_irq(skb);
- smc->saved_skb = NULL;
- netif_start_queue(dev);
- return;
- }
-
- dev->stats.tx_bytes += skb->len;
- /* The card should use the just-allocated buffer. */
- outw(packet_no, ioaddr + PNR_ARR);
- /* point to the beginning of the packet */
- outw(PTR_AUTOINC , ioaddr + POINTER);
-
- /* Send the packet length (+6 for status, length and ctl byte)
- and the status word (set to zeros). */
- {
- u_char *buf = skb->data;
- u_int length = skb->len; /* The chip will pad to ethernet min. */
-
- netdev_dbg(dev, "Trying to xmit packet of length %d\n", length);
-
- /* send the packet length: +6 for status word, length, and ctl */
- outw(0, ioaddr + DATA_1);
- outw(length + 6, ioaddr + DATA_1);
- outsw(ioaddr + DATA_1, buf, length >> 1);
-
- /* The odd last byte, if there is one, goes in the control word. */
- outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
- }
-
- /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
- outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
- (inw(ioaddr + INTERRUPT) & 0xff00),
- ioaddr + INTERRUPT);
-
- /* The chip does the rest of the work. */
- outw(MC_ENQUEUE , ioaddr + MMU_CMD);
-
- smc->saved_skb = NULL;
- dev_kfree_skb_irq(skb);
- netif_trans_update(dev);
- netif_start_queue(dev);
-}
-
-/*====================================================================*/
-
-static void smc_tx_timeout(struct net_device *dev, unsigned int txqueue)
-{
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
-
- netdev_notice(dev, "transmit timed out, Tx_status %2.2x status %4.4x.\n",
- inw(ioaddr)&0xff, inw(ioaddr + 2));
- dev->stats.tx_errors++;
- smc_reset(dev);
- netif_trans_update(dev); /* prevent tx timeout */
- smc->saved_skb = NULL;
- netif_wake_queue(dev);
-}
-
-static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
- u_short num_pages;
- short time_out, ir;
- unsigned long flags;
-
- netif_stop_queue(dev);
-
- netdev_dbg(dev, "smc_start_xmit(length = %d) called, status %04x\n",
- skb->len, inw(ioaddr + 2));
-
- if (smc->saved_skb) {
- /* THIS SHOULD NEVER HAPPEN. */
- dev->stats.tx_aborted_errors++;
- netdev_dbg(dev, "Internal error -- sent packet while busy\n");
- return NETDEV_TX_BUSY;
- }
- smc->saved_skb = skb;
-
- num_pages = skb->len >> 8;
-
- if (num_pages > 7) {
- netdev_err(dev, "Far too big packet error: %d pages\n", num_pages);
- dev_kfree_skb (skb);
- smc->saved_skb = NULL;
- dev->stats.tx_dropped++;
- return NETDEV_TX_OK; /* Do not re-queue this packet. */
- }
- /* A packet is now waiting. */
- smc->packets_waiting++;
-
- spin_lock_irqsave(&smc->lock, flags);
- SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
-
- /* need MC_RESET to keep the memory consistent. errata? */
- if (smc->rx_ovrn) {
- outw(MC_RESET, ioaddr + MMU_CMD);
- smc->rx_ovrn = 0;
- }
-
- /* Allocate the memory; send the packet now if we win. */
- outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
- for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
- ir = inw(ioaddr+INTERRUPT);
- if (ir & IM_ALLOC_INT) {
- /* Acknowledge the interrupt, send the packet. */
- outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
- smc_hardware_send_packet(dev); /* Send the packet now.. */
- spin_unlock_irqrestore(&smc->lock, flags);
- return NETDEV_TX_OK;
- }
- }
-
- /* Otherwise defer until the Tx-space-allocated interrupt. */
- netdev_dbg(dev, "memory allocation deferred.\n");
- outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
- spin_unlock_irqrestore(&smc->lock, flags);
-
- return NETDEV_TX_OK;
-}
-
-/*======================================================================
-
- Handle a Tx anomalous event. Entered while in Window 2.
-
-======================================================================*/
-
-static void smc_tx_err(struct net_device * dev)
-{
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
- int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
- int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
- int tx_status;
-
- /* select this as the packet to read from */
- outw(packet_no, ioaddr + PNR_ARR);
-
- /* read the first word from this packet */
- outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
-
- tx_status = inw(ioaddr + DATA_1);
-
- dev->stats.tx_errors++;
- if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
- if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
- if (tx_status & TS_16COL) {
- dev->stats.tx_aborted_errors++;
- smc->tx_err++;
- }
-
- if (tx_status & TS_SUCCESS) {
- netdev_notice(dev, "Successful packet caused error interrupt?\n");
- }
- /* re-enable transmit */
- SMC_SELECT_BANK(0);
- outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
- SMC_SELECT_BANK(2);
-
- outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
-
- /* one less packet waiting for me */
- smc->packets_waiting--;
-
- outw(saved_packet, ioaddr + PNR_ARR);
-}
-
-/*====================================================================*/
-
-static void smc_eph_irq(struct net_device *dev)
-{
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
- u_short card_stats, ephs;
-
- SMC_SELECT_BANK(0);
- ephs = inw(ioaddr + EPH);
- netdev_dbg(dev, "Ethernet protocol handler interrupt, status %4.4x.\n",
- ephs);
- /* Could be a counter roll-over warning: update stats. */
- card_stats = inw(ioaddr + COUNTER);
- /* single collisions */
- dev->stats.collisions += card_stats & 0xF;
- card_stats >>= 4;
- /* multiple collisions */
- dev->stats.collisions += card_stats & 0xF;
-#if 0 /* These are for when linux supports these statistics */
- card_stats >>= 4; /* deferred */
- card_stats >>= 4; /* excess deferred */
-#endif
- /* If we had a transmit error we must re-enable the transmitter. */
- outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
-
- /* Clear a link error interrupt. */
- SMC_SELECT_BANK(1);
- outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
- outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
- ioaddr + CONTROL);
- SMC_SELECT_BANK(2);
-}
-
-/*====================================================================*/
-
-static irqreturn_t smc_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr;
- u_short saved_bank, saved_pointer, mask, status;
- unsigned int handled = 1;
- char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
-
- if (!netif_device_present(dev))
- return IRQ_NONE;
-
- ioaddr = dev->base_addr;
-
- netdev_dbg(dev, "SMC91c92 interrupt %d at %#x.\n",
- irq, ioaddr);
-
- spin_lock(&smc->lock);
- smc->watchdog = 0;
- saved_bank = inw(ioaddr + BANK_SELECT);
- if ((saved_bank & 0xff00) != 0x3300) {
- /* The device does not exist -- the card could be off-line, or
- maybe it has been ejected. */
- netdev_dbg(dev, "SMC91c92 interrupt %d for non-existent/ejected device.\n",
- irq);
- handled = 0;
- goto irq_done;
- }
-
- SMC_SELECT_BANK(2);
- saved_pointer = inw(ioaddr + POINTER);
- mask = inw(ioaddr + INTERRUPT) >> 8;
- /* clear all interrupts */
- outw(0, ioaddr + INTERRUPT);
-
- do { /* read the status flag, and mask it */
- status = inw(ioaddr + INTERRUPT) & 0xff;
- netdev_dbg(dev, "Status is %#2.2x (mask %#2.2x).\n",
- status, mask);
- if ((status & mask) == 0) {
- if (bogus_cnt == INTR_WORK)
- handled = 0;
- break;
- }
- if (status & IM_RCV_INT) {
- /* Got a packet(s). */
- smc_rx(dev);
- }
- if (status & IM_TX_INT) {
- smc_tx_err(dev);
- outw(IM_TX_INT, ioaddr + INTERRUPT);
- }
- status &= mask;
- if (status & IM_TX_EMPTY_INT) {
- outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
- mask &= ~IM_TX_EMPTY_INT;
- dev->stats.tx_packets += smc->packets_waiting;
- smc->packets_waiting = 0;
- }
- if (status & IM_ALLOC_INT) {
- /* Clear this interrupt so it doesn't happen again */
- mask &= ~IM_ALLOC_INT;
-
- smc_hardware_send_packet(dev);
-
- /* enable xmit interrupts based on this */
- mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
-
- /* and let the card send more packets to me */
- netif_wake_queue(dev);
- }
- if (status & IM_RX_OVRN_INT) {
- dev->stats.rx_errors++;
- dev->stats.rx_fifo_errors++;
- if (smc->duplex)
- smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
- outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
- }
- if (status & IM_EPH_INT)
- smc_eph_irq(dev);
- } while (--bogus_cnt);
-
- netdev_dbg(dev, " Restoring saved registers mask %2.2x bank %4.4x pointer %4.4x.\n",
- mask, saved_bank, saved_pointer);
-
- /* restore state register */
- outw((mask<<8), ioaddr + INTERRUPT);
- outw(saved_pointer, ioaddr + POINTER);
- SMC_SELECT_BANK(saved_bank);
-
- netdev_dbg(dev, "Exiting interrupt IRQ%d.\n", irq);
-
-irq_done:
-
- if ((smc->manfid == MANFID_OSITECH) &&
- (smc->cardid != PRODID_OSITECH_SEVEN)) {
- /* Retrigger interrupt if needed */
- mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
- set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
- }
- if (smc->manfid == MANFID_MOTOROLA) {
- u_char cor;
- cor = readb(smc->base + MOT_UART + CISREG_COR);
- writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
- writeb(cor, smc->base + MOT_UART + CISREG_COR);
- cor = readb(smc->base + MOT_LAN + CISREG_COR);
- writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
- writeb(cor, smc->base + MOT_LAN + CISREG_COR);
- }
-
- if ((smc->base != NULL) && /* Megahertz MFC's */
- (smc->manfid == MANFID_MEGAHERTZ) &&
- (smc->cardid == PRODID_MEGAHERTZ_EM3288)) {
-
- u_char tmp;
- tmp = readb(smc->base+MEGAHERTZ_ISR);
- tmp = readb(smc->base+MEGAHERTZ_ISR);
-
- /* Retrigger interrupt if needed */
- writeb(tmp, smc->base + MEGAHERTZ_ISR);
- writeb(tmp, smc->base + MEGAHERTZ_ISR);
- }
-
- spin_unlock(&smc->lock);
- return IRQ_RETVAL(handled);
-}
-
-/*====================================================================*/
-
-static void smc_rx(struct net_device *dev)
-{
- unsigned int ioaddr = dev->base_addr;
- int rx_status;
- int packet_length; /* Caution: not frame length, rather words
- to transfer from the chip. */
-
- /* Assertion: we are in Window 2. */
-
- if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
- netdev_err(dev, "smc_rx() with nothing on Rx FIFO\n");
- return;
- }
-
- /* Reset the read pointer, and read the status and packet length. */
- outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
- rx_status = inw(ioaddr + DATA_1);
- packet_length = inw(ioaddr + DATA_1) & 0x07ff;
-
- netdev_dbg(dev, "Receive status %4.4x length %d.\n",
- rx_status, packet_length);
-
- if (!(rx_status & RS_ERRORS)) {
- /* do stuff to make a new packet */
- struct sk_buff *skb;
- struct smc_private *smc = netdev_priv(dev);
-
- /* Note: packet_length adds 5 or 6 extra bytes here! */
- skb = netdev_alloc_skb(dev, packet_length+2);
-
- if (skb == NULL) {
- netdev_dbg(dev, "Low memory, packet dropped.\n");
- dev->stats.rx_dropped++;
- outw(MC_RELEASE, ioaddr + MMU_CMD);
- return;
- }
-
- packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
- skb_reserve(skb, 2);
- insw(ioaddr+DATA_1, skb_put(skb, packet_length),
- (packet_length+1)>>1);
- skb->protocol = eth_type_trans(skb, dev);
-
- netif_rx(skb);
- smc->last_rx = jiffies;
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += packet_length;
- if (rx_status & RS_MULTICAST)
- dev->stats.multicast++;
- } else {
- /* error ... */
- dev->stats.rx_errors++;
-
- if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
- if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
- dev->stats.rx_length_errors++;
- if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
- }
- /* Let the MMU free the memory of this packet. */
- outw(MC_RELEASE, ioaddr + MMU_CMD);
-}
-
-/*======================================================================
-
- Set the receive mode.
-
- This routine is used by both the protocol level to notify us of
- promiscuous/multicast mode changes, and by the open/reset code to
- initialize the Rx registers. We always set the multicast list and
- leave the receiver running.
-
-======================================================================*/
-
-static void set_rx_mode(struct net_device *dev)
-{
- unsigned int ioaddr = dev->base_addr;
- struct smc_private *smc = netdev_priv(dev);
- unsigned char multicast_table[8];
- unsigned long flags;
- u_short rx_cfg_setting;
- int i;
-
- memset(multicast_table, 0, sizeof(multicast_table));
-
- if (dev->flags & IFF_PROMISC) {
- rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
- } else if (dev->flags & IFF_ALLMULTI)
- rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
- else {
- if (!netdev_mc_empty(dev)) {
- struct netdev_hw_addr *ha;
-
- netdev_for_each_mc_addr(ha, dev) {
- u_int position = ether_crc(6, ha->addr);
- multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
- }
- }
- rx_cfg_setting = RxStripCRC | RxEnable;
- }
-
- /* Load MC table and Rx setting into the chip without interrupts. */
- spin_lock_irqsave(&smc->lock, flags);
- SMC_SELECT_BANK(3);
- for (i = 0; i < 8; i++)
- outb(multicast_table[i], ioaddr + MULTICAST0 + i);
- SMC_SELECT_BANK(0);
- outw(rx_cfg_setting, ioaddr + RCR);
- SMC_SELECT_BANK(2);
- spin_unlock_irqrestore(&smc->lock, flags);
-}
-
-/*======================================================================
-
- Senses when a card's config changes. Here, it's coax or TP.
-
-======================================================================*/
-
-static int s9k_config(struct net_device *dev, struct ifmap *map)
-{
- struct smc_private *smc = netdev_priv(dev);
- if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
- if (smc->cfg & CFG_MII_SELECT)
- return -EOPNOTSUPP;
- else if (map->port > 2)
- return -EINVAL;
- WRITE_ONCE(dev->if_port, map->port);
- netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
- smc_reset(dev);
- }
- return 0;
-}
-
-/*======================================================================
-
- Reset the chip, reloading every register that might be corrupted.
-
-======================================================================*/
-
-/*
- Set transceiver type, perhaps to something other than what the user
- specified in dev->if_port.
-*/
-static void smc_set_xcvr(struct net_device *dev, int if_port)
-{
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
- u_short saved_bank;
-
- saved_bank = inw(ioaddr + BANK_SELECT);
- SMC_SELECT_BANK(1);
- if (if_port == 2) {
- outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
- if ((smc->manfid == MANFID_OSITECH) &&
- (smc->cardid != PRODID_OSITECH_SEVEN))
- set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
- smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
- } else {
- outw(smc->cfg, ioaddr + CONFIG);
- if ((smc->manfid == MANFID_OSITECH) &&
- (smc->cardid != PRODID_OSITECH_SEVEN))
- mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
- smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
- }
- SMC_SELECT_BANK(saved_bank);
-}
-
-static void smc_reset(struct net_device *dev)
-{
- unsigned int ioaddr = dev->base_addr;
- struct smc_private *smc = netdev_priv(dev);
- int i;
-
- netdev_dbg(dev, "smc91c92 reset called.\n");
-
- /* The first interaction must be a write to bring the chip out
- of sleep mode. */
- SMC_SELECT_BANK(0);
- /* Reset the chip. */
- outw(RCR_SOFTRESET, ioaddr + RCR);
- udelay(10);
-
- /* Clear the transmit and receive configuration registers. */
- outw(RCR_CLEAR, ioaddr + RCR);
- outw(TCR_CLEAR, ioaddr + TCR);
-
- /* Set the Window 1 control, configuration and station addr registers.
- No point in writing the I/O base register ;-> */
- SMC_SELECT_BANK(1);
- /* Automatically release successfully transmitted packets,
- Accept link errors, counter and Tx error interrupts. */
- outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
- ioaddr + CONTROL);
- smc_set_xcvr(dev, dev->if_port);
- if ((smc->manfid == MANFID_OSITECH) &&
- (smc->cardid != PRODID_OSITECH_SEVEN))
- outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
- (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
- ioaddr - 0x10 + OSITECH_AUI_PWR);
-
- /* Fill in the physical address. The databook is wrong about the order! */
- for (i = 0; i < 6; i += 2)
- outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
- ioaddr + ADDR0 + i);
-
- /* Reset the MMU */
- SMC_SELECT_BANK(2);
- outw(MC_RESET, ioaddr + MMU_CMD);
- outw(0, ioaddr + INTERRUPT);
-
- /* Re-enable the chip. */
- SMC_SELECT_BANK(0);
- outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
- TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
- set_rx_mode(dev);
-
- if (smc->cfg & CFG_MII_SELECT) {
- SMC_SELECT_BANK(3);
-
- /* Reset MII */
- mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
-
- /* Advertise 100F, 100H, 10F, 10H */
- mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
-
- /* Restart MII autonegotiation */
- mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
- mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
- }
-
- /* Enable interrupts. */
- SMC_SELECT_BANK(2);
- outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
- ioaddr + INTERRUPT);
-}
-
-/*======================================================================
-
- Media selection timer routine
-
-======================================================================*/
-
-static void media_check(struct timer_list *t)
-{
- struct smc_private *smc = timer_container_of(smc, t, media);
- struct net_device *dev = smc->mii_if.dev;
- unsigned int ioaddr = dev->base_addr;
- u_short i, media, saved_bank;
- u_short link;
- unsigned long flags;
-
- spin_lock_irqsave(&smc->lock, flags);
-
- saved_bank = inw(ioaddr + BANK_SELECT);
-
- if (!netif_device_present(dev))
- goto reschedule;
-
- SMC_SELECT_BANK(2);
-
- /* need MC_RESET to keep the memory consistent. errata? */
- if (smc->rx_ovrn) {
- outw(MC_RESET, ioaddr + MMU_CMD);
- smc->rx_ovrn = 0;
- }
- i = inw(ioaddr + INTERRUPT);
- SMC_SELECT_BANK(0);
- media = inw(ioaddr + EPH) & EPH_LINK_OK;
- SMC_SELECT_BANK(1);
- media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
-
- SMC_SELECT_BANK(saved_bank);
- spin_unlock_irqrestore(&smc->lock, flags);
-
- /* Check for pending interrupt with watchdog flag set: with
- this, we can limp along even if the interrupt is blocked */
- if (smc->watchdog++ && ((i>>8) & i)) {
- if (!smc->fast_poll)
- netdev_info(dev, "interrupt(s) dropped!\n");
- local_irq_save(flags);
- smc_interrupt(dev->irq, dev);
- local_irq_restore(flags);
- smc->fast_poll = HZ;
- }
- if (smc->fast_poll) {
- smc->fast_poll--;
- smc->media.expires = jiffies + HZ/100;
- add_timer(&smc->media);
- return;
- }
-
- spin_lock_irqsave(&smc->lock, flags);
-
- saved_bank = inw(ioaddr + BANK_SELECT);
-
- if (smc->cfg & CFG_MII_SELECT) {
- if (smc->mii_if.phy_id < 0)
- goto reschedule;
-
- SMC_SELECT_BANK(3);
- link = mdio_read(dev, smc->mii_if.phy_id, 1);
- if (!link || (link == 0xffff)) {
- netdev_info(dev, "MII is missing!\n");
- smc->mii_if.phy_id = -1;
- goto reschedule;
- }
-
- link &= 0x0004;
- if (link != smc->link_status) {
- u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
- netdev_info(dev, "%s link beat\n", link ? "found" : "lost");
- smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
- ? TCR_FDUPLX : 0);
- if (link) {
- netdev_info(dev, "autonegotiation complete: "
- "%dbaseT-%cD selected\n",
- (p & 0x0180) ? 100 : 10, smc->duplex ? 'F' : 'H');
- }
- SMC_SELECT_BANK(0);
- outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
- smc->link_status = link;
- }
- goto reschedule;
- }
-
- /* Ignore collisions unless we've had no rx's recently */
- if (time_after(jiffies, smc->last_rx + HZ)) {
- if (smc->tx_err || (smc->media_status & EPH_16COL))
- media |= EPH_16COL;
- }
- smc->tx_err = 0;
-
- if (media != smc->media_status) {
- if ((media & smc->media_status & 1) &&
- ((smc->media_status ^ media) & EPH_LINK_OK))
- netdev_info(dev, "%s link beat\n",
- smc->media_status & EPH_LINK_OK ? "lost" : "found");
- else if ((media & smc->media_status & 2) &&
- ((smc->media_status ^ media) & EPH_16COL))
- netdev_info(dev, "coax cable %s\n",
- media & EPH_16COL ? "problem" : "ok");
- if (dev->if_port == 0) {
- if (media & 1) {
- if (media & EPH_LINK_OK)
- netdev_info(dev, "flipped to 10baseT\n");
- else
- smc_set_xcvr(dev, 2);
- } else {
- if (media & EPH_16COL)
- smc_set_xcvr(dev, 1);
- else
- netdev_info(dev, "flipped to 10base2\n");
- }
- }
- smc->media_status = media;
- }
-
-reschedule:
- smc->media.expires = jiffies + HZ;
- add_timer(&smc->media);
- SMC_SELECT_BANK(saved_bank);
- spin_unlock_irqrestore(&smc->lock, flags);
-}
-
-static int smc_link_ok(struct net_device *dev)
-{
- unsigned int ioaddr = dev->base_addr;
- struct smc_private *smc = netdev_priv(dev);
-
- if (smc->cfg & CFG_MII_SELECT) {
- return mii_link_ok(&smc->mii_if);
- } else {
- SMC_SELECT_BANK(0);
- return inw(ioaddr + EPH) & EPH_LINK_OK;
- }
-}
-
-static void smc_netdev_get_ecmd(struct net_device *dev,
- struct ethtool_link_ksettings *ecmd)
-{
- u16 tmp;
- unsigned int ioaddr = dev->base_addr;
- u32 supported;
-
- supported = (SUPPORTED_TP | SUPPORTED_AUI |
- SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
-
- SMC_SELECT_BANK(1);
- tmp = inw(ioaddr + CONFIG);
- ecmd->base.port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
- ecmd->base.speed = SPEED_10;
- ecmd->base.phy_address = ioaddr + MGMT;
-
- SMC_SELECT_BANK(0);
- tmp = inw(ioaddr + TCR);
- ecmd->base.duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
-
- ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.supported,
- supported);
-}
-
-static int smc_netdev_set_ecmd(struct net_device *dev,
- const struct ethtool_link_ksettings *ecmd)
-{
- u16 tmp;
- unsigned int ioaddr = dev->base_addr;
-
- if (ecmd->base.speed != SPEED_10)
- return -EINVAL;
- if (ecmd->base.duplex != DUPLEX_HALF &&
- ecmd->base.duplex != DUPLEX_FULL)
- return -EINVAL;
- if (ecmd->base.port != PORT_TP && ecmd->base.port != PORT_AUI)
- return -EINVAL;
-
- if (ecmd->base.port == PORT_AUI)
- smc_set_xcvr(dev, 1);
- else
- smc_set_xcvr(dev, 0);
-
- SMC_SELECT_BANK(0);
- tmp = inw(ioaddr + TCR);
- if (ecmd->base.duplex == DUPLEX_FULL)
- tmp |= TCR_FDUPLX;
- else
- tmp &= ~TCR_FDUPLX;
- outw(tmp, ioaddr + TCR);
-
- return 0;
-}
-
-static int check_if_running(struct net_device *dev)
-{
- if (!netif_running(dev))
- return -EINVAL;
- return 0;
-}
-
-static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
- strscpy(info->driver, DRV_NAME, sizeof(info->driver));
- strscpy(info->version, DRV_VERSION, sizeof(info->version));
-}
-
-static int smc_get_link_ksettings(struct net_device *dev,
- struct ethtool_link_ksettings *ecmd)
-{
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
- u16 saved_bank = inw(ioaddr + BANK_SELECT);
- unsigned long flags;
-
- spin_lock_irqsave(&smc->lock, flags);
- SMC_SELECT_BANK(3);
- if (smc->cfg & CFG_MII_SELECT)
- mii_ethtool_get_link_ksettings(&smc->mii_if, ecmd);
- else
- smc_netdev_get_ecmd(dev, ecmd);
- SMC_SELECT_BANK(saved_bank);
- spin_unlock_irqrestore(&smc->lock, flags);
- return 0;
-}
-
-static int smc_set_link_ksettings(struct net_device *dev,
- const struct ethtool_link_ksettings *ecmd)
-{
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
- u16 saved_bank = inw(ioaddr + BANK_SELECT);
- int ret;
- unsigned long flags;
-
- spin_lock_irqsave(&smc->lock, flags);
- SMC_SELECT_BANK(3);
- if (smc->cfg & CFG_MII_SELECT)
- ret = mii_ethtool_set_link_ksettings(&smc->mii_if, ecmd);
- else
- ret = smc_netdev_set_ecmd(dev, ecmd);
- SMC_SELECT_BANK(saved_bank);
- spin_unlock_irqrestore(&smc->lock, flags);
- return ret;
-}
-
-static u32 smc_get_link(struct net_device *dev)
-{
- struct smc_private *smc = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
- u16 saved_bank = inw(ioaddr + BANK_SELECT);
- u32 ret;
- unsigned long flags;
-
- spin_lock_irqsave(&smc->lock, flags);
- SMC_SELECT_BANK(3);
- ret = smc_link_ok(dev);
- SMC_SELECT_BANK(saved_bank);
- spin_unlock_irqrestore(&smc->lock, flags);
- return ret;
-}
-
-static int smc_nway_reset(struct net_device *dev)
-{
- struct smc_private *smc = netdev_priv(dev);
- if (smc->cfg & CFG_MII_SELECT) {
- unsigned int ioaddr = dev->base_addr;
- u16 saved_bank = inw(ioaddr + BANK_SELECT);
- int res;
-
- SMC_SELECT_BANK(3);
- res = mii_nway_restart(&smc->mii_if);
- SMC_SELECT_BANK(saved_bank);
-
- return res;
- } else
- return -EOPNOTSUPP;
-}
-
-static const struct ethtool_ops ethtool_ops = {
- .begin = check_if_running,
- .get_drvinfo = smc_get_drvinfo,
- .get_link = smc_get_link,
- .nway_reset = smc_nway_reset,
- .get_link_ksettings = smc_get_link_ksettings,
- .set_link_ksettings = smc_set_link_ksettings,
-};
-
-static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct smc_private *smc = netdev_priv(dev);
- struct mii_ioctl_data *mii = if_mii(rq);
- int rc = 0;
- u16 saved_bank;
- unsigned int ioaddr = dev->base_addr;
- unsigned long flags;
-
- if (!netif_running(dev))
- return -EINVAL;
-
- spin_lock_irqsave(&smc->lock, flags);
- saved_bank = inw(ioaddr + BANK_SELECT);
- SMC_SELECT_BANK(3);
- rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
- SMC_SELECT_BANK(saved_bank);
- spin_unlock_irqrestore(&smc->lock, flags);
- return rc;
-}
-
-static const struct pcmcia_device_id smc91c92_ids[] = {
- PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
- PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
- PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
- PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
- PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
- PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
- PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
- PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
- PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
- PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
- PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
- PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
- PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
- PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
- PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
- PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
- PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
- PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
- PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
- /* These conflict with other cards! */
- /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
- /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
- PCMCIA_DEVICE_NULL,
-};
-MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
-
-static struct pcmcia_driver smc91c92_cs_driver = {
- .owner = THIS_MODULE,
- .name = "smc91c92_cs",
- .probe = smc91c92_probe,
- .remove = smc91c92_detach,
- .id_table = smc91c92_ids,
- .suspend = smc91c92_suspend,
- .resume = smc91c92_resume,
-};
-module_pcmcia_driver(smc91c92_cs_driver);
--
2.53.0
^ permalink raw reply related
* [PATCH net 16/18] drivers: net: 8390: pcnet: Remove this driver
From: Andrew Lunn @ 2026-04-21 19:31 UTC (permalink / raw)
To: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Simon Horman, Jonathan Corbet, Shuah Khan
Cc: linux-kernel, netdev, linux-doc, Andrew Lunn
In-Reply-To: <20260421-v7-0-0-net-next-driver-removal-v1-v1-0-69517c689d1f@lunn.ch>
The pcnet was written by David A. Hindsh in 1999. It is an PCMCIA
device, so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
drivers/net/ethernet/8390/Kconfig | 11 -
drivers/net/ethernet/8390/Makefile | 1 -
drivers/net/ethernet/8390/pcnet_cs.c | 1717 ----------------------------------
3 files changed, 1729 deletions(-)
diff --git a/drivers/net/ethernet/8390/Kconfig b/drivers/net/ethernet/8390/Kconfig
index 3dea042cc2eb..3e56806471a3 100644
--- a/drivers/net/ethernet/8390/Kconfig
+++ b/drivers/net/ethernet/8390/Kconfig
@@ -132,17 +132,6 @@ config APNE
To compile this driver as a module, choose M here: the module
will be called apne.
-config PCMCIA_PCNET
- tristate "NE2000 compatible PCMCIA support"
- depends on PCMCIA && HAS_IOPORT
- select CRC32
- help
- Say Y here if you intend to attach an NE2000 compatible PCMCIA
- (PC-card) Ethernet or Fast Ethernet card to your computer.
-
- To compile this driver as a module, choose M here: the module will be
- called pcnet_cs. If unsure, say N.
-
config STNIC
tristate "National DP83902AV support"
depends on SUPERH
diff --git a/drivers/net/ethernet/8390/Makefile b/drivers/net/ethernet/8390/Makefile
index 60220484b382..b215136a603b 100644
--- a/drivers/net/ethernet/8390/Makefile
+++ b/drivers/net/ethernet/8390/Makefile
@@ -11,7 +11,6 @@ obj-$(CONFIG_HYDRA) += hydra.o
obj-$(CONFIG_MCF8390) += mcf8390.o
obj-$(CONFIG_NE2000) += ne.o 8390p.o
obj-$(CONFIG_NE2K_PCI) += ne2k-pci.o 8390.o
-obj-$(CONFIG_PCMCIA_PCNET) += pcnet_cs.o 8390.o
obj-$(CONFIG_STNIC) += stnic.o 8390.o
obj-$(CONFIG_ULTRA) += smc-ultra.o 8390.o
obj-$(CONFIG_WD80x3) += wd.o 8390.o
diff --git a/drivers/net/ethernet/8390/pcnet_cs.c b/drivers/net/ethernet/8390/pcnet_cs.c
deleted file mode 100644
index 19f9c5db3f3b..000000000000
--- a/drivers/net/ethernet/8390/pcnet_cs.c
+++ /dev/null
@@ -1,1717 +0,0 @@
-// SPDX-License-Identifier: GPL-1.0+
-/*======================================================================
-
- A PCMCIA ethernet driver for NS8390-based cards
-
- This driver supports the D-Link DE-650 and Linksys EthernetCard
- cards, the newer D-Link and Linksys combo cards, Accton EN2212
- cards, the RPTI EP400, and the PreMax PE-200 in non-shared-memory
- mode, and the IBM Credit Card Adapter, the NE4100, the Thomas
- Conrad ethernet card, and the Kingston KNE-PCM/x in shared-memory
- mode. It will also handle the Socket EA card in either mode.
-
- Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
-
- pcnet_cs.c 1.153 2003/11/09 18:53:09
-
- The network driver code is based on Donald Becker's NE2000 code:
-
- Written 1992,1993 by Donald Becker.
- Copyright 1993 United States Government as represented by the
- Director, National Security Agency.
- Donald Becker may be reached at becker@scyld.com
-
- Based also on Keith Moore's changes to Don Becker's code, for IBM
- CCAE support. Drivers merged back together, and shared-memory
- Socket EA support added, by Ken Raeburn, September 1995.
-
-======================================================================*/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/ptrace.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/log2.h>
-#include <linux/etherdevice.h>
-#include <linux/mii.h>
-#include "8390.h"
-
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ciscode.h>
-#include <pcmcia/ds.h>
-#include <pcmcia/cisreg.h>
-
-#include <asm/io.h>
-#include <asm/byteorder.h>
-#include <linux/uaccess.h>
-
-#define PCNET_CMD 0x00
-#define PCNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */
-#define PCNET_RESET 0x1f /* Issue a read to reset, a write to clear. */
-#define PCNET_MISC 0x18 /* For IBM CCAE and Socket EA cards */
-
-#define PCNET_START_PG 0x40 /* First page of TX buffer */
-#define PCNET_STOP_PG 0x80 /* Last page +1 of RX ring */
-
-/* Socket EA cards have a larger packet buffer */
-#define SOCKET_START_PG 0x01
-#define SOCKET_STOP_PG 0xff
-
-#define PCNET_RDC_TIMEOUT (2*HZ/100) /* Max wait in jiffies for Tx RDC */
-
-static const char *if_names[] = { "auto", "10baseT", "10base2"};
-
-/*====================================================================*/
-
-/* Module parameters */
-
-MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
-MODULE_DESCRIPTION("NE2000 compatible PCMCIA ethernet driver");
-MODULE_LICENSE("GPL");
-
-#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
-
-INT_MODULE_PARM(if_port, 1); /* Transceiver type */
-INT_MODULE_PARM(use_big_buf, 1); /* use 64K packet buffer? */
-INT_MODULE_PARM(mem_speed, 0); /* shared mem speed, in ns */
-INT_MODULE_PARM(delay_output, 0); /* pause after xmit? */
-INT_MODULE_PARM(delay_time, 4); /* in usec */
-INT_MODULE_PARM(use_shmem, -1); /* use shared memory? */
-INT_MODULE_PARM(full_duplex, 0); /* full duplex? */
-
-/* Ugh! Let the user hardwire the hardware address for queer cards */
-static int hw_addr[6] = { 0, /* ... */ };
-module_param_array(hw_addr, int, NULL, 0);
-
-/*====================================================================*/
-
-static void mii_phy_probe(struct net_device *dev);
-static int pcnet_config(struct pcmcia_device *link);
-static void pcnet_release(struct pcmcia_device *link);
-static int pcnet_open(struct net_device *dev);
-static int pcnet_close(struct net_device *dev);
-static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static irqreturn_t ei_irq_wrapper(int irq, void *dev_id);
-static void ei_watchdog(struct timer_list *t);
-static void pcnet_reset_8390(struct net_device *dev);
-static int set_config(struct net_device *dev, struct ifmap *map);
-static int setup_shmem_window(struct pcmcia_device *link, int start_pg,
- int stop_pg, int cm_offset);
-static int setup_dma_config(struct pcmcia_device *link, int start_pg,
- int stop_pg);
-
-static void pcnet_detach(struct pcmcia_device *p_dev);
-
-/*====================================================================*/
-
-struct hw_info {
- u_int offset;
- u_char a0, a1, a2;
- u_int flags;
-};
-
-#define DELAY_OUTPUT 0x01
-#define HAS_MISC_REG 0x02
-#define USE_BIG_BUF 0x04
-#define HAS_IBM_MISC 0x08
-#define IS_DL10019 0x10
-#define IS_DL10022 0x20
-#define HAS_MII 0x40
-#define USE_SHMEM 0x80 /* autodetected */
-
-#define AM79C9XX_HOME_PHY 0x00006B90 /* HomePNA PHY */
-#define AM79C9XX_ETH_PHY 0x00006B70 /* 10baseT PHY */
-#define MII_PHYID_REV_MASK 0xfffffff0
-#define MII_PHYID_REG1 0x02
-#define MII_PHYID_REG2 0x03
-
-static struct hw_info hw_info[] = {
- { /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT },
- { /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 },
- { /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 },
- { /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94,
- DELAY_OUTPUT | HAS_IBM_MISC },
- { /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 },
- { /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 },
- { /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 },
- { /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 },
- { /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 },
- { /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 },
- { /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 },
- { /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 },
- { /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* IBM FME */ 0x0374, 0x00, 0x04, 0xac,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 },
- { /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 },
- { /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 },
- { /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 },
- { /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 },
- { /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 },
- { /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45,
- HAS_MISC_REG | HAS_IBM_MISC },
- { /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 },
- { /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 },
- { /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 },
- { /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b,
- DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF },
- { /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 },
- { /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 },
- { /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 },
- { /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 },
- { /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 }
-};
-
-#define NR_INFO ARRAY_SIZE(hw_info)
-
-static struct hw_info default_info = { 0, 0, 0, 0, 0 };
-static struct hw_info dl10019_info = { 0, 0, 0, 0, IS_DL10019|HAS_MII };
-static struct hw_info dl10022_info = { 0, 0, 0, 0, IS_DL10022|HAS_MII };
-
-struct pcnet_dev {
- struct pcmcia_device *p_dev;
- u_int flags;
- void __iomem *base;
- struct timer_list watchdog;
- int stale, fast_poll;
- u_char phy_id;
- u_char eth_phy, pna_phy;
- u_short link_status;
- u_long mii_reset;
-};
-
-static inline struct pcnet_dev *PRIV(struct net_device *dev)
-{
- char *p = netdev_priv(dev);
- return (struct pcnet_dev *)(p + sizeof(struct ei_device));
-}
-
-static const struct net_device_ops pcnet_netdev_ops = {
- .ndo_open = pcnet_open,
- .ndo_stop = pcnet_close,
- .ndo_set_config = set_config,
- .ndo_start_xmit = ei_start_xmit,
- .ndo_get_stats = ei_get_stats,
- .ndo_eth_ioctl = ei_ioctl,
- .ndo_set_rx_mode = ei_set_multicast_list,
- .ndo_tx_timeout = ei_tx_timeout,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = ei_poll,
-#endif
-};
-
-static int pcnet_probe(struct pcmcia_device *link)
-{
- struct pcnet_dev *info;
- struct net_device *dev;
-
- dev_dbg(&link->dev, "pcnet_attach()\n");
-
- /* Create new ethernet device */
- dev = __alloc_ei_netdev(sizeof(struct pcnet_dev));
- if (!dev) return -ENOMEM;
- info = PRIV(dev);
- info->p_dev = link;
- link->priv = dev;
-
- link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
-
- dev->netdev_ops = &pcnet_netdev_ops;
-
- return pcnet_config(link);
-} /* pcnet_attach */
-
-static void pcnet_detach(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- dev_dbg(&link->dev, "pcnet_detach\n");
-
- unregister_netdev(dev);
-
- pcnet_release(link);
-
- free_netdev(dev);
-} /* pcnet_detach */
-
-/*======================================================================
-
- This probes for a card's hardware address, for card types that
- encode this information in their CIS.
-
-======================================================================*/
-
-static struct hw_info *get_hwinfo(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- u_char __iomem *base, *virt;
- u8 addr[ETH_ALEN];
- int i, j;
-
- /* Allocate a small memory window */
- link->resource[2]->flags |= WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
- link->resource[2]->start = 0; link->resource[2]->end = 0;
- i = pcmcia_request_window(link, link->resource[2], 0);
- if (i != 0)
- return NULL;
-
- virt = ioremap(link->resource[2]->start,
- resource_size(link->resource[2]));
- if (unlikely(!virt)) {
- pcmcia_release_window(link, link->resource[2]);
- return NULL;
- }
-
- for (i = 0; i < NR_INFO; i++) {
- pcmcia_map_mem_page(link, link->resource[2],
- hw_info[i].offset & ~(resource_size(link->resource[2])-1));
- base = &virt[hw_info[i].offset & (resource_size(link->resource[2])-1)];
- if ((readb(base+0) == hw_info[i].a0) &&
- (readb(base+2) == hw_info[i].a1) &&
- (readb(base+4) == hw_info[i].a2)) {
- for (j = 0; j < 6; j++)
- addr[j] = readb(base + (j<<1));
- eth_hw_addr_set(dev, addr);
- break;
- }
- }
-
- iounmap(virt);
- j = pcmcia_release_window(link, link->resource[2]);
- return (i < NR_INFO) ? hw_info+i : NULL;
-} /* get_hwinfo */
-
-/*======================================================================
-
- This probes for a card's hardware address by reading the PROM.
- It checks the address against a list of known types, then falls
- back to a simple NE2000 clone signature check.
-
-======================================================================*/
-
-static struct hw_info *get_prom(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- unsigned int ioaddr = dev->base_addr;
- u8 addr[ETH_ALEN];
- u_char prom[32];
- int i, j;
-
- /* This is lifted straight from drivers/net/ethernet/8390/ne.c */
- struct {
- u_char value, offset;
- } program_seq[] = {
- {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
- {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */
- {0x00, EN0_RCNTLO}, /* Clear the count regs. */
- {0x00, EN0_RCNTHI},
- {0x00, EN0_IMR}, /* Mask completion irq. */
- {0xFF, EN0_ISR},
- {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */
- {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */
- {32, EN0_RCNTLO},
- {0x00, EN0_RCNTHI},
- {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */
- {0x00, EN0_RSARHI},
- {E8390_RREAD+E8390_START, E8390_CMD},
- };
-
- pcnet_reset_8390(dev);
- mdelay(10);
-
- for (i = 0; i < ARRAY_SIZE(program_seq); i++)
- outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);
-
- for (i = 0; i < 32; i++)
- prom[i] = inb(ioaddr + PCNET_DATAPORT);
- for (i = 0; i < NR_INFO; i++) {
- if ((prom[0] == hw_info[i].a0) &&
- (prom[2] == hw_info[i].a1) &&
- (prom[4] == hw_info[i].a2))
- break;
- }
- if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) {
- for (j = 0; j < 6; j++)
- addr[j] = prom[j<<1];
- eth_hw_addr_set(dev, addr);
- return (i < NR_INFO) ? hw_info+i : &default_info;
- }
- return NULL;
-} /* get_prom */
-
-/*======================================================================
-
- For DL10019 based cards, like the Linksys EtherFast
-
-======================================================================*/
-
-static struct hw_info *get_dl10019(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- u8 addr[ETH_ALEN];
- int i;
- u_char sum;
-
- for (sum = 0, i = 0x14; i < 0x1c; i++)
- sum += inb_p(dev->base_addr + i);
- if (sum != 0xff)
- return NULL;
- for (i = 0; i < 6; i++)
- addr[i] = inb_p(dev->base_addr + 0x14 + i);
- eth_hw_addr_set(dev, addr);
- i = inb(dev->base_addr + 0x1f);
- return ((i == 0x91)||(i == 0x99)) ? &dl10022_info : &dl10019_info;
-}
-
-/*======================================================================
-
- For Asix AX88190 based cards
-
-======================================================================*/
-
-static struct hw_info *get_ax88190(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- unsigned int ioaddr = dev->base_addr;
- u8 addr[ETH_ALEN];
- int i, j;
-
- /* Not much of a test, but the alternatives are messy */
- if (link->config_base != 0x03c0)
- return NULL;
-
- outb_p(0x01, ioaddr + EN0_DCFG); /* Set word-wide access. */
- outb_p(0x00, ioaddr + EN0_RSARLO); /* DMA starting at 0x0400. */
- outb_p(0x04, ioaddr + EN0_RSARHI);
- outb_p(E8390_RREAD+E8390_START, ioaddr + E8390_CMD);
-
- for (i = 0; i < 6; i += 2) {
- j = inw(ioaddr + PCNET_DATAPORT);
- addr[i] = j & 0xff;
- addr[i+1] = j >> 8;
- }
- eth_hw_addr_set(dev, addr);
- return NULL;
-}
-
-/*======================================================================
-
- This should be totally unnecessary... but when we can't figure
- out the hardware address any other way, we'll let the user hard
- wire it when the module is initialized.
-
-======================================================================*/
-
-static struct hw_info *get_hwired(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- u8 addr[ETH_ALEN];
- int i;
-
- for (i = 0; i < 6; i++)
- if (hw_addr[i] != 0) break;
- if (i == 6)
- return NULL;
-
- for (i = 0; i < 6; i++)
- addr[i] = hw_addr[i];
- eth_hw_addr_set(dev, addr);
-
- return &default_info;
-} /* get_hwired */
-
-static int try_io_port(struct pcmcia_device *link)
-{
- int j, ret;
- link->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
- link->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
- if (link->resource[0]->end == 32) {
- link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
- if (link->resource[1]->end > 0) {
- /* for master/slave multifunction cards */
- link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
- }
- } else {
- /* This should be two 16-port windows */
- link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
- link->resource[1]->flags |= IO_DATA_PATH_WIDTH_16;
- }
- if (link->resource[0]->start == 0) {
- for (j = 0; j < 0x400; j += 0x20) {
- link->resource[0]->start = j ^ 0x300;
- link->resource[1]->start = (j ^ 0x300) + 0x10;
- link->io_lines = 16;
- ret = pcmcia_request_io(link);
- if (ret == 0)
- return ret;
- }
- return ret;
- } else {
- return pcmcia_request_io(link);
- }
-}
-
-static int pcnet_confcheck(struct pcmcia_device *p_dev, void *priv_data)
-{
- int *priv = priv_data;
- int try = (*priv & 0x1);
-
- *priv &= (p_dev->resource[2]->end >= 0x4000) ? 0x10 : ~0x10;
-
- if (p_dev->config_index == 0)
- return -EINVAL;
-
- if (p_dev->resource[0]->end + p_dev->resource[1]->end < 32)
- return -EINVAL;
-
- if (try)
- p_dev->io_lines = 16;
- return try_io_port(p_dev);
-}
-
-static struct hw_info *pcnet_try_config(struct pcmcia_device *link,
- int *has_shmem, int try)
-{
- struct net_device *dev = link->priv;
- struct hw_info *local_hw_info;
- struct pcnet_dev *info = PRIV(dev);
- int priv = try;
- int ret;
-
- ret = pcmcia_loop_config(link, pcnet_confcheck, &priv);
- if (ret) {
- dev_warn(&link->dev, "no useable port range found\n");
- return NULL;
- }
- *has_shmem = (priv & 0x10);
-
- if (!link->irq)
- return NULL;
-
- if (resource_size(link->resource[1]) == 8)
- link->config_flags |= CONF_ENABLE_SPKR;
-
- if ((link->manf_id == MANFID_IBM) &&
- (link->card_id == PRODID_IBM_HOME_AND_AWAY))
- link->config_index |= 0x10;
-
- ret = pcmcia_enable_device(link);
- if (ret)
- return NULL;
-
- dev->irq = link->irq;
- dev->base_addr = link->resource[0]->start;
-
- if (info->flags & HAS_MISC_REG) {
- if ((if_port == 1) || (if_port == 2))
- dev->if_port = if_port;
- else
- dev_notice(&link->dev, "invalid if_port requested\n");
- } else
- dev->if_port = 0;
-
- if ((link->config_base == 0x03c0) &&
- (link->manf_id == 0x149) && (link->card_id == 0xc1ab)) {
- dev_info(&link->dev,
- "this is an AX88190 card - use axnet_cs instead.\n");
- return NULL;
- }
-
- local_hw_info = get_hwinfo(link);
- if (!local_hw_info)
- local_hw_info = get_prom(link);
- if (!local_hw_info)
- local_hw_info = get_dl10019(link);
- if (!local_hw_info)
- local_hw_info = get_ax88190(link);
- if (!local_hw_info)
- local_hw_info = get_hwired(link);
-
- return local_hw_info;
-}
-
-static int pcnet_config(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- struct pcnet_dev *info = PRIV(dev);
- int start_pg, stop_pg, cm_offset;
- int has_shmem = 0;
- struct hw_info *local_hw_info;
-
- dev_dbg(&link->dev, "pcnet_config\n");
-
- local_hw_info = pcnet_try_config(link, &has_shmem, 0);
- if (!local_hw_info) {
- /* check whether forcing io_lines to 16 helps... */
- pcmcia_disable_device(link);
- local_hw_info = pcnet_try_config(link, &has_shmem, 1);
- if (local_hw_info == NULL) {
- dev_notice(&link->dev, "unable to read hardware net"
- " address for io base %#3lx\n", dev->base_addr);
- goto failed;
- }
- }
-
- info->flags = local_hw_info->flags;
- /* Check for user overrides */
- info->flags |= (delay_output) ? DELAY_OUTPUT : 0;
- if ((link->manf_id == MANFID_SOCKET) &&
- ((link->card_id == PRODID_SOCKET_LPE) ||
- (link->card_id == PRODID_SOCKET_LPE_CF) ||
- (link->card_id == PRODID_SOCKET_EIO)))
- info->flags &= ~USE_BIG_BUF;
- if (!use_big_buf)
- info->flags &= ~USE_BIG_BUF;
-
- if (info->flags & USE_BIG_BUF) {
- start_pg = SOCKET_START_PG;
- stop_pg = SOCKET_STOP_PG;
- cm_offset = 0x10000;
- } else {
- start_pg = PCNET_START_PG;
- stop_pg = PCNET_STOP_PG;
- cm_offset = 0;
- }
-
- /* has_shmem is ignored if use_shmem != -1 */
- if ((use_shmem == 0) || (!has_shmem && (use_shmem == -1)) ||
- (setup_shmem_window(link, start_pg, stop_pg, cm_offset) != 0))
- setup_dma_config(link, start_pg, stop_pg);
-
- ei_status.name = "NE2000";
- ei_status.word16 = 1;
- ei_status.reset_8390 = pcnet_reset_8390;
-
- if (info->flags & (IS_DL10019|IS_DL10022))
- mii_phy_probe(dev);
-
- SET_NETDEV_DEV(dev, &link->dev);
-
- if (register_netdev(dev) != 0) {
- pr_notice("register_netdev() failed\n");
- goto failed;
- }
-
- if (info->flags & (IS_DL10019|IS_DL10022)) {
- u_char id = inb(dev->base_addr + 0x1a);
- netdev_info(dev, "NE2000 (DL100%d rev %02x): ",
- (info->flags & IS_DL10022) ? 22 : 19, id);
- if (info->pna_phy)
- pr_cont("PNA, ");
- } else {
- netdev_info(dev, "NE2000 Compatible: ");
- }
- pr_cont("io %#3lx, irq %d,", dev->base_addr, dev->irq);
- if (info->flags & USE_SHMEM)
- pr_cont(" mem %#5lx,", dev->mem_start);
- if (info->flags & HAS_MISC_REG)
- pr_cont(" %s xcvr,", if_names[dev->if_port]);
- pr_cont(" hw_addr %pM\n", dev->dev_addr);
- return 0;
-
-failed:
- pcnet_release(link);
- return -ENODEV;
-} /* pcnet_config */
-
-static void pcnet_release(struct pcmcia_device *link)
-{
- struct pcnet_dev *info = PRIV(link->priv);
-
- dev_dbg(&link->dev, "pcnet_release\n");
-
- if (info->flags & USE_SHMEM)
- iounmap(info->base);
-
- pcmcia_disable_device(link);
-}
-
-static int pcnet_suspend(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- if (link->open)
- netif_device_detach(dev);
-
- return 0;
-}
-
-static int pcnet_resume(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- if (link->open) {
- pcnet_reset_8390(dev);
- NS8390_init(dev, 1);
- netif_device_attach(dev);
- }
-
- return 0;
-}
-
-
-/*======================================================================
-
- MII interface support for DL10019 and DL10022 based cards
-
- On the DL10019, the MII IO direction bit is 0x10; on the DL10022
- it is 0x20. Setting both bits seems to work on both card types.
-
-======================================================================*/
-
-#define DLINK_GPIO 0x1c
-#define DLINK_DIAG 0x1d
-#define DLINK_EEPROM 0x1e
-
-#define MDIO_SHIFT_CLK 0x80
-#define MDIO_DATA_OUT 0x40
-#define MDIO_DIR_WRITE 0x30
-#define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
-#define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
-#define MDIO_DATA_READ 0x10
-#define MDIO_MASK 0x0f
-
-static void mdio_sync(unsigned int addr)
-{
- int bits, mask = inb(addr) & MDIO_MASK;
- for (bits = 0; bits < 32; bits++) {
- outb(mask | MDIO_DATA_WRITE1, addr);
- outb(mask | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
- }
-}
-
-static int mdio_read(unsigned int addr, int phy_id, int loc)
-{
- u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
- int i, retval = 0, mask = inb(addr) & MDIO_MASK;
-
- mdio_sync(addr);
- for (i = 13; i >= 0; i--) {
- int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
- outb(mask | dat, addr);
- outb(mask | dat | MDIO_SHIFT_CLK, addr);
- }
- for (i = 19; i > 0; i--) {
- outb(mask, addr);
- retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
- outb(mask | MDIO_SHIFT_CLK, addr);
- }
- return (retval>>1) & 0xffff;
-}
-
-static void mdio_write(unsigned int addr, int phy_id, int loc, int value)
-{
- u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
- int i, mask = inb(addr) & MDIO_MASK;
-
- mdio_sync(addr);
- for (i = 31; i >= 0; i--) {
- int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
- outb(mask | dat, addr);
- outb(mask | dat | MDIO_SHIFT_CLK, addr);
- }
- for (i = 1; i >= 0; i--) {
- outb(mask, addr);
- outb(mask | MDIO_SHIFT_CLK, addr);
- }
-}
-
-/*======================================================================
-
- EEPROM access routines for DL10019 and DL10022 based cards
-
-======================================================================*/
-
-#define EE_EEP 0x40
-#define EE_ASIC 0x10
-#define EE_CS 0x08
-#define EE_CK 0x04
-#define EE_DO 0x02
-#define EE_DI 0x01
-#define EE_ADOT 0x01 /* DataOut for ASIC */
-#define EE_READ_CMD 0x06
-
-#define DL19FDUPLX 0x0400 /* DL10019 Full duplex mode */
-
-static int read_eeprom(unsigned int ioaddr, int location)
-{
- int i, retval = 0;
- unsigned int ee_addr = ioaddr + DLINK_EEPROM;
- int read_cmd = location | (EE_READ_CMD << 8);
-
- outb(0, ee_addr);
- outb(EE_EEP|EE_CS, ee_addr);
-
- /* Shift the read command bits out. */
- for (i = 10; i >= 0; i--) {
- short dataval = (read_cmd & (1 << i)) ? EE_DO : 0;
- outb_p(EE_EEP|EE_CS|dataval, ee_addr);
- outb_p(EE_EEP|EE_CS|dataval|EE_CK, ee_addr);
- }
- outb(EE_EEP|EE_CS, ee_addr);
-
- for (i = 16; i > 0; i--) {
- outb_p(EE_EEP|EE_CS | EE_CK, ee_addr);
- retval = (retval << 1) | ((inb(ee_addr) & EE_DI) ? 1 : 0);
- outb_p(EE_EEP|EE_CS, ee_addr);
- }
-
- /* Terminate the EEPROM access. */
- outb(0, ee_addr);
- return retval;
-}
-
-/*
- The internal ASIC registers can be changed by EEPROM READ access
- with EE_ASIC bit set.
- In ASIC mode, EE_ADOT is used to output the data to the ASIC.
-*/
-
-static void write_asic(unsigned int ioaddr, int location, short asic_data)
-{
- int i;
- unsigned int ee_addr = ioaddr + DLINK_EEPROM;
- short dataval;
- int read_cmd = location | (EE_READ_CMD << 8);
-
- asic_data |= read_eeprom(ioaddr, location);
-
- outb(0, ee_addr);
- outb(EE_ASIC|EE_CS|EE_DI, ee_addr);
-
- read_cmd = read_cmd >> 1;
-
- /* Shift the read command bits out. */
- for (i = 9; i >= 0; i--) {
- dataval = (read_cmd & (1 << i)) ? EE_DO : 0;
- outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr);
- outb_p(EE_ASIC|EE_CS|EE_DI|dataval|EE_CK, ee_addr);
- outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr);
- }
- // sync
- outb(EE_ASIC|EE_CS, ee_addr);
- outb(EE_ASIC|EE_CS|EE_CK, ee_addr);
- outb(EE_ASIC|EE_CS, ee_addr);
-
- for (i = 15; i >= 0; i--) {
- dataval = (asic_data & (1 << i)) ? EE_ADOT : 0;
- outb_p(EE_ASIC|EE_CS|dataval, ee_addr);
- outb_p(EE_ASIC|EE_CS|dataval|EE_CK, ee_addr);
- outb_p(EE_ASIC|EE_CS|dataval, ee_addr);
- }
-
- /* Terminate the ASIC access. */
- outb(EE_ASIC|EE_DI, ee_addr);
- outb(EE_ASIC|EE_DI| EE_CK, ee_addr);
- outb(EE_ASIC|EE_DI, ee_addr);
-
- outb(0, ee_addr);
-}
-
-/*====================================================================*/
-
-static void set_misc_reg(struct net_device *dev)
-{
- unsigned int nic_base = dev->base_addr;
- struct pcnet_dev *info = PRIV(dev);
- u_char tmp;
-
- if (info->flags & HAS_MISC_REG) {
- tmp = inb_p(nic_base + PCNET_MISC) & ~3;
- if (dev->if_port == 2)
- tmp |= 1;
- if (info->flags & USE_BIG_BUF)
- tmp |= 2;
- if (info->flags & HAS_IBM_MISC)
- tmp |= 8;
- outb_p(tmp, nic_base + PCNET_MISC);
- }
- if (info->flags & IS_DL10022) {
- if (info->flags & HAS_MII) {
- /* Advertise 100F, 100H, 10F, 10H */
- mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 4, 0x01e1);
- /* Restart MII autonegotiation */
- mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000);
- mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200);
- info->mii_reset = jiffies;
- } else {
- outb(full_duplex ? 4 : 0, nic_base + DLINK_DIAG);
- }
- } else if (info->flags & IS_DL10019) {
- /* Advertise 100F, 100H, 10F, 10H */
- mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 4, 0x01e1);
- /* Restart MII autonegotiation */
- mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000);
- mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200);
- }
-}
-
-/*====================================================================*/
-
-static void mii_phy_probe(struct net_device *dev)
-{
- struct pcnet_dev *info = PRIV(dev);
- unsigned int mii_addr = dev->base_addr + DLINK_GPIO;
- int i;
- u_int tmp, phyid;
-
- for (i = 31; i >= 0; i--) {
- tmp = mdio_read(mii_addr, i, 1);
- if ((tmp == 0) || (tmp == 0xffff))
- continue;
- tmp = mdio_read(mii_addr, i, MII_PHYID_REG1);
- phyid = tmp << 16;
- phyid |= mdio_read(mii_addr, i, MII_PHYID_REG2);
- phyid &= MII_PHYID_REV_MASK;
- netdev_dbg(dev, "MII at %d is 0x%08x\n", i, phyid);
- if (phyid == AM79C9XX_HOME_PHY) {
- info->pna_phy = i;
- } else if (phyid != AM79C9XX_ETH_PHY) {
- info->eth_phy = i;
- }
- }
-}
-
-static int pcnet_open(struct net_device *dev)
-{
- int ret;
- struct pcnet_dev *info = PRIV(dev);
- struct pcmcia_device *link = info->p_dev;
- unsigned int nic_base = dev->base_addr;
-
- dev_dbg(&link->dev, "pcnet_open('%s')\n", dev->name);
-
- if (!pcmcia_dev_present(link))
- return -ENODEV;
-
- set_misc_reg(dev);
-
- outb_p(0xFF, nic_base + EN0_ISR); /* Clear bogus intr. */
- ret = request_irq(dev->irq, ei_irq_wrapper, IRQF_SHARED, dev->name, dev);
- if (ret)
- return ret;
-
- link->open++;
-
- info->phy_id = info->eth_phy;
- info->link_status = 0x00;
- timer_setup(&info->watchdog, ei_watchdog, 0);
- mod_timer(&info->watchdog, jiffies + HZ);
-
- return ei_open(dev);
-} /* pcnet_open */
-
-/*====================================================================*/
-
-static int pcnet_close(struct net_device *dev)
-{
- struct pcnet_dev *info = PRIV(dev);
- struct pcmcia_device *link = info->p_dev;
-
- dev_dbg(&link->dev, "pcnet_close('%s')\n", dev->name);
-
- ei_close(dev);
- free_irq(dev->irq, dev);
-
- link->open--;
- netif_stop_queue(dev);
- timer_delete_sync(&info->watchdog);
-
- return 0;
-} /* pcnet_close */
-
-/*======================================================================
-
- Hard reset the card. This used to pause for the same period that
- a 8390 reset command required, but that shouldn't be necessary.
-
-======================================================================*/
-
-static void pcnet_reset_8390(struct net_device *dev)
-{
- unsigned int nic_base = dev->base_addr;
- int i;
-
- ei_status.txing = ei_status.dmaing = 0;
-
- outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, nic_base + E8390_CMD);
-
- outb(inb(nic_base + PCNET_RESET), nic_base + PCNET_RESET);
-
- for (i = 0; i < 100; i++) {
- if ((inb_p(nic_base+EN0_ISR) & ENISR_RESET) != 0)
- break;
- udelay(100);
- }
- outb_p(ENISR_RESET, nic_base + EN0_ISR); /* Ack intr. */
-
- if (i == 100)
- netdev_err(dev, "pcnet_reset_8390() did not complete.\n");
-
- set_misc_reg(dev);
-
-} /* pcnet_reset_8390 */
-
-/*====================================================================*/
-
-static int set_config(struct net_device *dev, struct ifmap *map)
-{
- struct pcnet_dev *info = PRIV(dev);
- if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
- if (!(info->flags & HAS_MISC_REG))
- return -EOPNOTSUPP;
- else if ((map->port < 1) || (map->port > 2))
- return -EINVAL;
- WRITE_ONCE(dev->if_port, map->port);
- netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
- NS8390_init(dev, 1);
- }
- return 0;
-}
-
-/*====================================================================*/
-
-static irqreturn_t ei_irq_wrapper(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct pcnet_dev *info;
- irqreturn_t ret = ei_interrupt(irq, dev_id);
-
- if (ret == IRQ_HANDLED) {
- info = PRIV(dev);
- info->stale = 0;
- }
- return ret;
-}
-
-static void ei_watchdog(struct timer_list *t)
-{
- struct pcnet_dev *info = timer_container_of(info, t, watchdog);
- struct net_device *dev = info->p_dev->priv;
- unsigned int nic_base = dev->base_addr;
- unsigned int mii_addr = nic_base + DLINK_GPIO;
- u_short link;
-
- if (!netif_device_present(dev)) goto reschedule;
-
- /* Check for pending interrupt with expired latency timer: with
- this, we can limp along even if the interrupt is blocked */
- if (info->stale++ && (inb_p(nic_base + EN0_ISR) & ENISR_ALL)) {
- if (!info->fast_poll)
- netdev_info(dev, "interrupt(s) dropped!\n");
- ei_irq_wrapper(dev->irq, dev);
- info->fast_poll = HZ;
- }
- if (info->fast_poll) {
- info->fast_poll--;
- info->watchdog.expires = jiffies + 1;
- add_timer(&info->watchdog);
- return;
- }
-
- if (!(info->flags & HAS_MII))
- goto reschedule;
-
- mdio_read(mii_addr, info->phy_id, 1);
- link = mdio_read(mii_addr, info->phy_id, 1);
- if (!link || (link == 0xffff)) {
- if (info->eth_phy) {
- info->phy_id = info->eth_phy = 0;
- } else {
- netdev_info(dev, "MII is missing!\n");
- info->flags &= ~HAS_MII;
- }
- goto reschedule;
- }
-
- link &= 0x0004;
- if (link != info->link_status) {
- u_short p = mdio_read(mii_addr, info->phy_id, 5);
- netdev_info(dev, "%s link beat\n", link ? "found" : "lost");
- if (link && (info->flags & IS_DL10022)) {
- /* Disable collision detection on full duplex links */
- outb((p & 0x0140) ? 4 : 0, nic_base + DLINK_DIAG);
- } else if (link && (info->flags & IS_DL10019)) {
- /* Disable collision detection on full duplex links */
- write_asic(dev->base_addr, 4, (p & 0x140) ? DL19FDUPLX : 0);
- }
- if (link) {
- if (info->phy_id == info->eth_phy) {
- if (p)
- netdev_info(dev, "autonegotiation complete: "
- "%sbaseT-%cD selected\n",
- ((p & 0x0180) ? "100" : "10"),
- ((p & 0x0140) ? 'F' : 'H'));
- else
- netdev_info(dev, "link partner did not autonegotiate\n");
- }
- NS8390_init(dev, 1);
- }
- info->link_status = link;
- }
- if (info->pna_phy && time_after(jiffies, info->mii_reset + 6*HZ)) {
- link = mdio_read(mii_addr, info->eth_phy, 1) & 0x0004;
- if (((info->phy_id == info->pna_phy) && link) ||
- ((info->phy_id != info->pna_phy) && !link)) {
- /* isolate this MII and try flipping to the other one */
- mdio_write(mii_addr, info->phy_id, 0, 0x0400);
- info->phy_id ^= info->pna_phy ^ info->eth_phy;
- netdev_info(dev, "switched to %s transceiver\n",
- (info->phy_id == info->eth_phy) ? "ethernet" : "PNA");
- mdio_write(mii_addr, info->phy_id, 0,
- (info->phy_id == info->eth_phy) ? 0x1000 : 0);
- info->link_status = 0;
- info->mii_reset = jiffies;
- }
- }
-
-reschedule:
- info->watchdog.expires = jiffies + HZ;
- add_timer(&info->watchdog);
-}
-
-/*====================================================================*/
-
-
-static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct pcnet_dev *info = PRIV(dev);
- struct mii_ioctl_data *data = if_mii(rq);
- unsigned int mii_addr = dev->base_addr + DLINK_GPIO;
-
- if (!(info->flags & (IS_DL10019|IS_DL10022)))
- return -EINVAL;
-
- switch (cmd) {
- case SIOCGMIIPHY:
- data->phy_id = info->phy_id;
- fallthrough;
- case SIOCGMIIREG: /* Read MII PHY register. */
- data->val_out = mdio_read(mii_addr, data->phy_id, data->reg_num & 0x1f);
- return 0;
- case SIOCSMIIREG: /* Write MII PHY register. */
- mdio_write(mii_addr, data->phy_id, data->reg_num & 0x1f, data->val_in);
- return 0;
- }
- return -EOPNOTSUPP;
-}
-
-/*====================================================================*/
-
-static void dma_get_8390_hdr(struct net_device *dev,
- struct e8390_pkt_hdr *hdr,
- int ring_page)
-{
- unsigned int nic_base = dev->base_addr;
-
- if (ei_status.dmaing) {
- netdev_err(dev, "DMAing conflict in dma_block_input."
- "[DMAstat:%1x][irqlock:%1x]\n",
- ei_status.dmaing, ei_status.irqlock);
- return;
- }
-
- ei_status.dmaing |= 0x01;
- outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD);
- outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
- outb_p(0, nic_base + EN0_RCNTHI);
- outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */
- outb_p(ring_page, nic_base + EN0_RSARHI);
- outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD);
-
- insw(nic_base + PCNET_DATAPORT, hdr,
- sizeof(struct e8390_pkt_hdr)>>1);
- /* Fix for big endian systems */
- hdr->count = le16_to_cpu(hdr->count);
-
- outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
- ei_status.dmaing &= ~0x01;
-}
-
-/*====================================================================*/
-
-static void dma_block_input(struct net_device *dev, int count,
- struct sk_buff *skb, int ring_offset)
-{
- unsigned int nic_base = dev->base_addr;
- int xfer_count = count;
- char *buf = skb->data;
- struct ei_device *ei_local = netdev_priv(dev);
-
- if ((netif_msg_rx_status(ei_local)) && (count != 4))
- netdev_dbg(dev, "[bi=%d]\n", count+4);
- if (ei_status.dmaing) {
- netdev_err(dev, "DMAing conflict in dma_block_input."
- "[DMAstat:%1x][irqlock:%1x]\n",
- ei_status.dmaing, ei_status.irqlock);
- return;
- }
- ei_status.dmaing |= 0x01;
- outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD);
- outb_p(count & 0xff, nic_base + EN0_RCNTLO);
- outb_p(count >> 8, nic_base + EN0_RCNTHI);
- outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO);
- outb_p(ring_offset >> 8, nic_base + EN0_RSARHI);
- outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD);
-
- insw(nic_base + PCNET_DATAPORT,buf,count>>1);
- if (count & 0x01) {
- buf[count-1] = inb(nic_base + PCNET_DATAPORT);
- xfer_count++;
- }
-
- /* This was for the ALPHA version only, but enough people have been
- encountering problems that it is still here. */
-#ifdef PCMCIA_DEBUG
- /* DMA termination address check... */
- if (netif_msg_rx_status(ei_local)) {
- int addr, tries = 20;
- do {
- /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here
- -- it's broken for Rx on some cards! */
- int high = inb_p(nic_base + EN0_RSARHI);
- int low = inb_p(nic_base + EN0_RSARLO);
- addr = (high << 8) + low;
- if (((ring_offset + xfer_count) & 0xff) == (addr & 0xff))
- break;
- } while (--tries > 0);
- if (tries <= 0)
- netdev_notice(dev, "RX transfer address mismatch,"
- "%#4.4x (expected) vs. %#4.4x (actual).\n",
- ring_offset + xfer_count, addr);
- }
-#endif
- outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
- ei_status.dmaing &= ~0x01;
-} /* dma_block_input */
-
-/*====================================================================*/
-
-static void dma_block_output(struct net_device *dev, int count,
- const u_char *buf, const int start_page)
-{
- unsigned int nic_base = dev->base_addr;
- struct pcnet_dev *info = PRIV(dev);
-#ifdef PCMCIA_DEBUG
- int retries = 0;
- struct ei_device *ei_local = netdev_priv(dev);
-#endif
- u_long dma_start;
-
-#ifdef PCMCIA_DEBUG
- netif_dbg(ei_local, tx_queued, dev, "[bo=%d]\n", count);
-#endif
-
- /* Round the count up for word writes. Do we need to do this?
- What effect will an odd byte count have on the 8390?
- I should check someday. */
- if (count & 0x01)
- count++;
- if (ei_status.dmaing) {
- netdev_err(dev, "DMAing conflict in dma_block_output."
- "[DMAstat:%1x][irqlock:%1x]\n",
- ei_status.dmaing, ei_status.irqlock);
- return;
- }
- ei_status.dmaing |= 0x01;
- /* We should already be in page 0, but to be safe... */
- outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base+PCNET_CMD);
-
-#ifdef PCMCIA_DEBUG
- retry:
-#endif
-
- outb_p(ENISR_RDC, nic_base + EN0_ISR);
-
- /* Now the normal output. */
- outb_p(count & 0xff, nic_base + EN0_RCNTLO);
- outb_p(count >> 8, nic_base + EN0_RCNTHI);
- outb_p(0x00, nic_base + EN0_RSARLO);
- outb_p(start_page, nic_base + EN0_RSARHI);
-
- outb_p(E8390_RWRITE+E8390_START, nic_base + PCNET_CMD);
- outsw(nic_base + PCNET_DATAPORT, buf, count>>1);
-
- dma_start = jiffies;
-
-#ifdef PCMCIA_DEBUG
- /* This was for the ALPHA version only, but enough people have been
- encountering problems that it is still here. */
- /* DMA termination address check... */
- if (netif_msg_tx_queued(ei_local)) {
- int addr, tries = 20;
- do {
- int high = inb_p(nic_base + EN0_RSARHI);
- int low = inb_p(nic_base + EN0_RSARLO);
- addr = (high << 8) + low;
- if ((start_page << 8) + count == addr)
- break;
- } while (--tries > 0);
- if (tries <= 0) {
- netdev_notice(dev, "Tx packet transfer address mismatch,"
- "%#4.4x (expected) vs. %#4.4x (actual).\n",
- (start_page << 8) + count, addr);
- if (retries++ == 0)
- goto retry;
- }
- }
-#endif
-
- while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0)
- if (time_after(jiffies, dma_start + PCNET_RDC_TIMEOUT)) {
- netdev_warn(dev, "timeout waiting for Tx RDC.\n");
- pcnet_reset_8390(dev);
- NS8390_init(dev, 1);
- break;
- }
-
- outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
- if (info->flags & DELAY_OUTPUT)
- udelay((long)delay_time);
- ei_status.dmaing &= ~0x01;
-}
-
-/*====================================================================*/
-
-static int setup_dma_config(struct pcmcia_device *link, int start_pg,
- int stop_pg)
-{
- struct net_device *dev = link->priv;
-
- ei_status.tx_start_page = start_pg;
- ei_status.rx_start_page = start_pg + TX_PAGES;
- ei_status.stop_page = stop_pg;
-
- /* set up block i/o functions */
- ei_status.get_8390_hdr = dma_get_8390_hdr;
- ei_status.block_input = dma_block_input;
- ei_status.block_output = dma_block_output;
-
- return 0;
-}
-
-/*====================================================================*/
-
-static void copyin(void *dest, void __iomem *src, int c)
-{
- u_short *d = dest;
- u_short __iomem *s = src;
- int odd;
-
- if (c <= 0)
- return;
- odd = (c & 1); c >>= 1;
-
- if (c) {
- do { *d++ = __raw_readw(s++); } while (--c);
- }
- /* get last byte by fetching a word and masking */
- if (odd)
- *((u_char *)d) = readw(s) & 0xff;
-}
-
-static void copyout(void __iomem *dest, const void *src, int c)
-{
- u_short __iomem *d = dest;
- const u_short *s = src;
- int odd;
-
- if (c <= 0)
- return;
- odd = (c & 1); c >>= 1;
-
- if (c) {
- do { __raw_writew(*s++, d++); } while (--c);
- }
- /* copy last byte doing a read-modify-write */
- if (odd)
- writew((readw(d) & 0xff00) | *(u_char *)s, d);
-}
-
-/*====================================================================*/
-
-static void shmem_get_8390_hdr(struct net_device *dev,
- struct e8390_pkt_hdr *hdr,
- int ring_page)
-{
- void __iomem *xfer_start = ei_status.mem + (TX_PAGES<<8)
- + (ring_page << 8)
- - (ei_status.rx_start_page << 8);
-
- copyin(hdr, xfer_start, sizeof(struct e8390_pkt_hdr));
- /* Fix for big endian systems */
- hdr->count = le16_to_cpu(hdr->count);
-}
-
-/*====================================================================*/
-
-static void shmem_block_input(struct net_device *dev, int count,
- struct sk_buff *skb, int ring_offset)
-{
- void __iomem *base = ei_status.mem;
- unsigned long offset = (TX_PAGES<<8) + ring_offset
- - (ei_status.rx_start_page << 8);
- char *buf = skb->data;
-
- if (offset + count > ei_status.priv) {
- /* We must wrap the input move. */
- int semi_count = ei_status.priv - offset;
- copyin(buf, base + offset, semi_count);
- buf += semi_count;
- offset = TX_PAGES<<8;
- count -= semi_count;
- }
- copyin(buf, base + offset, count);
-}
-
-/*====================================================================*/
-
-static void shmem_block_output(struct net_device *dev, int count,
- const u_char *buf, const int start_page)
-{
- void __iomem *shmem = ei_status.mem + (start_page << 8);
- shmem -= ei_status.tx_start_page << 8;
- copyout(shmem, buf, count);
-}
-
-/*====================================================================*/
-
-static int setup_shmem_window(struct pcmcia_device *link, int start_pg,
- int stop_pg, int cm_offset)
-{
- struct net_device *dev = link->priv;
- struct pcnet_dev *info = PRIV(dev);
- int i, window_size, offset, ret;
-
- window_size = (stop_pg - start_pg) << 8;
- if (window_size > 32 * 1024)
- window_size = 32 * 1024;
-
- /* Make sure it's a power of two. */
- window_size = roundup_pow_of_two(window_size);
-
- /* Allocate a memory window */
- link->resource[3]->flags |= WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
- link->resource[3]->flags |= WIN_USE_WAIT;
- link->resource[3]->start = 0; link->resource[3]->end = window_size;
- ret = pcmcia_request_window(link, link->resource[3], mem_speed);
- if (ret)
- goto failed;
-
- offset = (start_pg << 8) + cm_offset;
- offset -= offset % window_size;
- ret = pcmcia_map_mem_page(link, link->resource[3], offset);
- if (ret)
- goto failed;
-
- /* Try scribbling on the buffer */
- info->base = ioremap(link->resource[3]->start,
- resource_size(link->resource[3]));
- if (unlikely(!info->base)) {
- ret = -ENOMEM;
- goto failed;
- }
-
- for (i = 0; i < (TX_PAGES<<8); i += 2)
- __raw_writew((i>>1), info->base+offset+i);
- udelay(100);
- for (i = 0; i < (TX_PAGES<<8); i += 2)
- if (__raw_readw(info->base+offset+i) != (i>>1)) break;
- pcnet_reset_8390(dev);
- if (i != (TX_PAGES<<8)) {
- iounmap(info->base);
- pcmcia_release_window(link, link->resource[3]);
- info->base = NULL;
- goto failed;
- }
-
- ei_status.mem = info->base + offset;
- ei_status.priv = resource_size(link->resource[3]);
- dev->mem_start = (u_long)ei_status.mem;
- dev->mem_end = dev->mem_start + resource_size(link->resource[3]);
-
- ei_status.tx_start_page = start_pg;
- ei_status.rx_start_page = start_pg + TX_PAGES;
- ei_status.stop_page = start_pg + (
- (resource_size(link->resource[3]) - offset) >> 8);
-
- /* set up block i/o functions */
- ei_status.get_8390_hdr = shmem_get_8390_hdr;
- ei_status.block_input = shmem_block_input;
- ei_status.block_output = shmem_block_output;
-
- info->flags |= USE_SHMEM;
- return 0;
-
-failed:
- return 1;
-}
-
-/*====================================================================*/
-
-static const struct pcmcia_device_id pcnet_ids[] = {
- PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0057, 0x0021),
- PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0104, 0x000a),
- PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0105, 0xea15),
- PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0143, 0x3341),
- PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0143, 0xc0ab),
- PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x021b, 0x0101),
- PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x08a1, 0xc0ab),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "AnyCom", "Fast Ethernet + 56K COMBO", 0x578ba6e7, 0xb0ac62c4),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "ATKK", "LM33-PCM-T", 0xba9eb7e2, 0x077c174e),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "D-Link", "DME336T", 0x1a424a1c, 0xb23897ff),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "Grey Cell", "GCS3000", 0x2a151fac, 0x48b932ae),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "Linksys", "EtherFast 10&100 + 56K PC Card (PCMLM56)", 0x0733cc81, 0xb3765033),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7a821b58),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "MICRO RESEARCH", "COMBO-L/M-336", 0xb2ced065, 0x3ced0555),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0xcd8906cc),
- PCMCIA_PFC_DEVICE_PROD_ID12(0, "PCMCIAs", "LanModem", 0xdcfe12d3, 0xc67c648f),
- PCMCIA_MFC_DEVICE_PROD_ID12(0, "IBM", "Home and Away 28.8 PC Card ", 0xb569a6e5, 0x5bd4ff2c),
- PCMCIA_MFC_DEVICE_PROD_ID12(0, "IBM", "Home and Away Credit Card Adapter", 0xb569a6e5, 0x4bdf15c3),
- PCMCIA_MFC_DEVICE_PROD_ID12(0, "IBM", "w95 Home and Away Credit Card ", 0xb569a6e5, 0xae911c15),
- PCMCIA_MFC_DEVICE_PROD_ID123(0, "APEX DATA", "MULTICARD", "ETHERNET-MODEM", 0x11c2da09, 0x7289dc5d, 0xaad95e1f),
- PCMCIA_MFC_DEVICE_PROD_ID2(0, "FAX/Modem/Ethernet Combo Card ", 0x1ed59302),
- PCMCIA_DEVICE_MANF_CARD(0x0057, 0x1004),
- PCMCIA_DEVICE_MANF_CARD(0x0104, 0x000d),
- PCMCIA_DEVICE_MANF_CARD(0x0104, 0x0075),
- PCMCIA_DEVICE_MANF_CARD(0x0104, 0x0145),
- PCMCIA_DEVICE_MANF_CARD(0x0149, 0x0230),
- PCMCIA_DEVICE_MANF_CARD(0x0149, 0x4530),
- PCMCIA_DEVICE_MANF_CARD(0x0149, 0xc1ab),
- PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0110),
- PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x8041),
- PCMCIA_DEVICE_MANF_CARD(0x0213, 0x2452),
- PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0300),
- PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0307),
- PCMCIA_DEVICE_MANF_CARD(0x026f, 0x030a),
- PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1103),
- PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1121),
- PCMCIA_DEVICE_MANF_CARD(0xc001, 0x0009),
- PCMCIA_DEVICE_PROD_ID12("2408LAN", "Ethernet", 0x352fff7f, 0x00b2e941),
- PCMCIA_DEVICE_PROD_ID1234("Socket", "CF 10/100 Ethernet Card", "Revision B", "05/11/06", 0xb38bcc2e, 0x4de88352, 0xeaca6c8d, 0x7e57c22e),
- PCMCIA_DEVICE_PROD_ID123("Cardwell", "PCMCIA", "ETHERNET", 0x9533672e, 0x281f1c5d, 0x3ff7175b),
- PCMCIA_DEVICE_PROD_ID123("CNet ", "CN30BC", "ETHERNET", 0x9fe55d3d, 0x85601198, 0x3ff7175b),
- PCMCIA_DEVICE_PROD_ID123("Digital", "Ethernet", "Adapter", 0x9999ab35, 0x00b2e941, 0x4b0d829e),
- PCMCIA_DEVICE_PROD_ID123("Edimax Technology Inc.", "PCMCIA", "Ethernet Card", 0x738a0019, 0x281f1c5d, 0x5e9d92c0),
- PCMCIA_DEVICE_PROD_ID123("EFA ", "EFA207", "ETHERNET", 0x3d294be4, 0xeb9aab6c, 0x3ff7175b),
- PCMCIA_DEVICE_PROD_ID123("I-O DATA", "PCLA", "ETHERNET", 0x1d55d7ec, 0xe4c64d34, 0x3ff7175b),
- PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCLATE", "ETHERNET", 0x547e66dc, 0x6b260753, 0x3ff7175b),
- PCMCIA_DEVICE_PROD_ID123("KingMax Technology Inc.", "EN10-T2", "PCMCIA Ethernet Card", 0x932b7189, 0x699e4436, 0x6f6652e0),
- PCMCIA_DEVICE_PROD_ID123("PCMCIA", "PCMCIA-ETHERNET-CARD", "UE2216", 0x281f1c5d, 0xd4cd2f20, 0xb87add82),
- PCMCIA_DEVICE_PROD_ID123("PCMCIA", "PCMCIA-ETHERNET-CARD", "UE2620", 0x281f1c5d, 0xd4cd2f20, 0x7d3d83a8),
- PCMCIA_DEVICE_PROD_ID1("2412LAN", 0x67f236ab),
- PCMCIA_DEVICE_PROD_ID12("ACCTON", "EN2212", 0xdfc6b5b2, 0xcb112a11),
- PCMCIA_DEVICE_PROD_ID12("ACCTON", "EN2216-PCMCIA-ETHERNET", 0xdfc6b5b2, 0x5542bfff),
- PCMCIA_DEVICE_PROD_ID12("Allied Telesis, K.K.", "CentreCOM LA100-PCM-T V2 100/10M LAN PC Card", 0xbb7fbdd7, 0xcd91cc68),
- PCMCIA_DEVICE_PROD_ID12("Allied Telesis K.K.", "LA100-PCM V2", 0x36634a66, 0xc6d05997),
- PCMCIA_DEVICE_PROD_ID12("Allied Telesis, K.K.", "CentreCOM LA-PCM_V2", 0xbb7fBdd7, 0x28e299f8),
- PCMCIA_DEVICE_PROD_ID12("Allied Telesis K.K.", "LA-PCM V3", 0x36634a66, 0x62241d96),
- PCMCIA_DEVICE_PROD_ID12("AmbiCom", "AMB8010", 0x5070a7f9, 0x82f96e96),
- PCMCIA_DEVICE_PROD_ID12("AmbiCom", "AMB8610", 0x5070a7f9, 0x86741224),
- PCMCIA_DEVICE_PROD_ID12("AmbiCom Inc", "AMB8002", 0x93b15570, 0x75ec3efb),
- PCMCIA_DEVICE_PROD_ID12("AmbiCom Inc", "AMB8002T", 0x93b15570, 0x461c5247),
- PCMCIA_DEVICE_PROD_ID12("AmbiCom Inc", "AMB8010", 0x93b15570, 0x82f96e96),
- PCMCIA_DEVICE_PROD_ID12("AnyCom", "ECO Ethernet", 0x578ba6e7, 0x0a9888c1),
- PCMCIA_DEVICE_PROD_ID12("AnyCom", "ECO Ethernet 10/100", 0x578ba6e7, 0x939fedbd),
- PCMCIA_DEVICE_PROD_ID12("AROWANA", "PCMCIA Ethernet LAN Card", 0x313adbc8, 0x08d9f190),
- PCMCIA_DEVICE_PROD_ID12("ASANTE", "FriendlyNet PC Card", 0x3a7ade0f, 0x41c64504),
- PCMCIA_DEVICE_PROD_ID12("Billionton", "LNT-10TB", 0x552ab682, 0xeeb1ba6a),
- PCMCIA_DEVICE_PROD_ID12("CF", "10Base-Ethernet", 0x44ebf863, 0x93ae4d79),
- PCMCIA_DEVICE_PROD_ID12("CNet", "CN40BC Ethernet", 0xbc477dde, 0xfba775a7),
- PCMCIA_DEVICE_PROD_ID12("COMPU-SHACK", "BASEline PCMCIA 10 MBit Ethernetadapter", 0xfa2e424d, 0xe9190d8a),
- PCMCIA_DEVICE_PROD_ID12("COMPU-SHACK", "FASTline PCMCIA 10/100 Fast-Ethernet", 0xfa2e424d, 0x3953d9b9),
- PCMCIA_DEVICE_PROD_ID12("CONTEC", "C-NET(PC)C-10L", 0x21cab552, 0xf6f90722),
- PCMCIA_DEVICE_PROD_ID12("corega", "FEther PCC-TXF", 0x0a21501a, 0xa51564a2),
- PCMCIA_DEVICE_PROD_ID12("corega", "Ether CF-TD", 0x0a21501a, 0x6589340a),
- PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega Ether CF-TD LAN Card", 0x5261440f, 0x8797663b),
- PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega EtherII PCC-T", 0x5261440f, 0xfa9d85bd),
- PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega EtherII PCC-TD", 0x5261440f, 0xc49bd73d),
- PCMCIA_DEVICE_PROD_ID12("Corega K.K.", "corega EtherII PCC-TD", 0xd4fdcbd8, 0xc49bd73d),
- PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega Ether PCC-T", 0x5261440f, 0x6705fcaa),
- PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega Ether PCC-TD", 0x5261440f, 0x47d5ca83),
- PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega FastEther PCC-TX", 0x5261440f, 0x485e85d9),
- PCMCIA_DEVICE_PROD_ID12("Corega,K.K.", "Ethernet LAN Card", 0x110d26d9, 0x9fd2f0a2),
- PCMCIA_DEVICE_PROD_ID12("corega,K.K.", "Ethernet LAN Card", 0x9791a90e, 0x9fd2f0a2),
- PCMCIA_DEVICE_PROD_ID12("corega K.K.", "(CG-LAPCCTXD)", 0x5261440f, 0x73ec0d88),
- PCMCIA_DEVICE_PROD_ID12("CouplerlessPCMCIA", "100BASE", 0xee5af0ad, 0x7c2add04),
- PCMCIA_DEVICE_PROD_ID12("CyQ've", "ELA-010", 0x77008979, 0x9d8d445d),
- PCMCIA_DEVICE_PROD_ID12("CyQ've", "ELA-110E 10/100M LAN Card", 0x77008979, 0xfd184814),
- PCMCIA_DEVICE_PROD_ID12("DataTrek.", "NetCard ", 0x5cd66d9d, 0x84697ce0),
- PCMCIA_DEVICE_PROD_ID12("Dayna Communications, Inc.", "CommuniCard E", 0x0c629325, 0xb4e7dbaf),
- PCMCIA_DEVICE_PROD_ID12("Digicom", "Palladio LAN 10/100", 0x697403d8, 0xe160b995),
- PCMCIA_DEVICE_PROD_ID12("Digicom", "Palladio LAN 10/100 Dongless", 0x697403d8, 0xa6d3b233),
- PCMCIA_DEVICE_PROD_ID12("DIGITAL", "DEPCM-XX", 0x69616cb3, 0xe600e76e),
- PCMCIA_DEVICE_PROD_ID12("D-Link", "DE-650", 0x1a424a1c, 0xf28c8398),
- PCMCIA_DEVICE_PROD_ID12("D-Link", "DE-660", 0x1a424a1c, 0xd9a1d05b),
- PCMCIA_DEVICE_PROD_ID12("D-Link", "DE-660+", 0x1a424a1c, 0x50dcd0ec),
- PCMCIA_DEVICE_PROD_ID12("D-Link", "DFE-650", 0x1a424a1c, 0x0f0073f9),
- PCMCIA_DEVICE_PROD_ID12("Dual Speed", "10/100 PC Card", 0x725b842d, 0xf1efee84),
- PCMCIA_DEVICE_PROD_ID12("Dual Speed", "10/100 Port Attached PC Card", 0x725b842d, 0x2db1f8e9),
- PCMCIA_DEVICE_PROD_ID12("Dynalink", "L10BC", 0x55632fd5, 0xdc65f2b1),
- PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L10BC", 0x6a26d1cf, 0xdc65f2b1),
- PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L10C", 0x6a26d1cf, 0xc4f84efb),
- PCMCIA_DEVICE_PROD_ID12("E-CARD", "E-CARD", 0x6701da11, 0x6701da11),
- PCMCIA_DEVICE_PROD_ID12("EIGER Labs Inc.", "Ethernet 10BaseT card", 0x53c864c6, 0xedd059f6),
- PCMCIA_DEVICE_PROD_ID12("EIGER Labs Inc.", "Ethernet Combo card", 0x53c864c6, 0x929c486c),
- PCMCIA_DEVICE_PROD_ID12("Ethernet", "Adapter", 0x00b2e941, 0x4b0d829e),
- PCMCIA_DEVICE_PROD_ID12("Ethernet Adapter", "E2000 PCMCIA Ethernet", 0x96767301, 0x71fbbc61),
- PCMCIA_DEVICE_PROD_ID12("Ethernet PCMCIA adapter", "EP-210", 0x8dd86181, 0xf2b52517),
- PCMCIA_DEVICE_PROD_ID12("Fast Ethernet", "Adapter", 0xb4be14e3, 0x4b0d829e),
- PCMCIA_DEVICE_PROD_ID12("Grey Cell", "GCS2000", 0x2a151fac, 0xf00555cb),
- PCMCIA_DEVICE_PROD_ID12("Grey Cell", "GCS2220", 0x2a151fac, 0xc1b7e327),
- PCMCIA_DEVICE_PROD_ID12("GVC", "NIC-2000p", 0x76e171bd, 0x6eb1c947),
- PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "Ethernet", 0xe3736c88, 0x00b2e941),
- PCMCIA_DEVICE_PROD_ID12("IC-CARD", "IC-CARD", 0x60cb09a6, 0x60cb09a6),
- PCMCIA_DEVICE_PROD_ID12("IC-CARD+", "IC-CARD+", 0x93693494, 0x93693494),
- PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCETTX", 0x547e66dc, 0x6fc5459b),
- PCMCIA_DEVICE_PROD_ID12("iPort", "10/100 Ethernet Card", 0x56c538d2, 0x11b0ffc0),
- PCMCIA_DEVICE_PROD_ID12("KANSAI ELECTRIC CO.,LTD", "KLA-PCM/T", 0xb18dc3b4, 0xcc51a956),
- PCMCIA_DEVICE_PROD_ID12("KENTRONICS", "KEP-230", 0xaf8144c9, 0x868f6616),
- PCMCIA_DEVICE_PROD_ID12("KCI", "PE520 PCMCIA Ethernet Adapter", 0xa89b87d3, 0x1eb88e64),
- PCMCIA_DEVICE_PROD_ID12("KINGMAX", "EN10T2T", 0x7bcb459a, 0xa5c81fa5),
- PCMCIA_DEVICE_PROD_ID12("Kingston", "KNE-PC2", 0x1128e633, 0xce2a89b3),
- PCMCIA_DEVICE_PROD_ID12("Kingston Technology Corp.", "EtheRx PC Card Ethernet Adapter", 0x313c7be3, 0x0afb54a2),
- PCMCIA_DEVICE_PROD_ID12("Laneed", "LD-10/100CD", 0x1b7827b2, 0xcda71d1c),
- PCMCIA_DEVICE_PROD_ID12("Laneed", "LD-CDF", 0x1b7827b2, 0xfec71e40),
- PCMCIA_DEVICE_PROD_ID12("Laneed", "LD-CDL/T", 0x1b7827b2, 0x79fba4f7),
- PCMCIA_DEVICE_PROD_ID12("Laneed", "LD-CDS", 0x1b7827b2, 0x931afaab),
- PCMCIA_DEVICE_PROD_ID12("LEMEL", "LM-N89TX PRO", 0xbbefb52f, 0xd2897a97),
- PCMCIA_DEVICE_PROD_ID12("Linksys", "Combo PCMCIA EthernetCard (EC2T)", 0x0733cc81, 0x32ee8c78),
- PCMCIA_DEVICE_PROD_ID12("LINKSYS", "E-CARD", 0xf7cb0b07, 0x6701da11),
- PCMCIA_DEVICE_PROD_ID12("Linksys", "EtherFast 10/100 Integrated PC Card (PCM100)", 0x0733cc81, 0x453c3f9d),
- PCMCIA_DEVICE_PROD_ID12("Linksys", "EtherFast 10/100 PC Card (PCMPC100)", 0x0733cc81, 0x66c5a389),
- PCMCIA_DEVICE_PROD_ID12("Linksys", "EtherFast 10/100 PC Card (PCMPC100 V2)", 0x0733cc81, 0x3a3b28e9),
- PCMCIA_DEVICE_PROD_ID12("Linksys", "HomeLink Phoneline + 10/100 Network PC Card (PCM100H1)", 0x733cc81, 0x7a3e5c3a),
- PCMCIA_DEVICE_PROD_ID12("Logitec", "LPM-LN100TX", 0x88fcdeda, 0x6d772737),
- PCMCIA_DEVICE_PROD_ID12("Logitec", "LPM-LN100TE", 0x88fcdeda, 0x0e714bee),
- PCMCIA_DEVICE_PROD_ID12("Logitec", "LPM-LN20T", 0x88fcdeda, 0x81090922),
- PCMCIA_DEVICE_PROD_ID12("Logitec", "LPM-LN10TE", 0x88fcdeda, 0xc1e2521c),
- PCMCIA_DEVICE_PROD_ID12("LONGSHINE", "PCMCIA Ethernet Card", 0xf866b0b0, 0x6f6652e0),
- PCMCIA_DEVICE_PROD_ID12("MACNICA", "ME1-JEIDA", 0x20841b68, 0xaf8a3578),
- PCMCIA_DEVICE_PROD_ID12("Macsense", "MPC-10", 0xd830297f, 0xd265c307),
- PCMCIA_DEVICE_PROD_ID12("Matsushita Electric Industrial Co.,LTD.", "CF-VEL211", 0x44445376, 0x8ded41d4),
- PCMCIA_DEVICE_PROD_ID12("MAXTECH", "PCN2000", 0x78d64bc0, 0xca0ca4b8),
- PCMCIA_DEVICE_PROD_ID12("MELCO", "LPC2-T", 0x481e0094, 0xa2eb0cf3),
- PCMCIA_DEVICE_PROD_ID12("MELCO", "LPC2-TX", 0x481e0094, 0x41a6916c),
- PCMCIA_DEVICE_PROD_ID12("Microcom C.E.", "Travel Card LAN 10/100", 0x4b91cec7, 0xe70220d6),
- PCMCIA_DEVICE_PROD_ID12("Microdyne", "NE4200", 0x2e6da59b, 0x0478e472),
- PCMCIA_DEVICE_PROD_ID12("MIDORI ELEC.", "LT-PCMT", 0x648d55c1, 0xbde526c7),
- PCMCIA_DEVICE_PROD_ID12("National Semiconductor", "InfoMover 4100", 0x36e1191f, 0x60c229b9),
- PCMCIA_DEVICE_PROD_ID12("National Semiconductor", "InfoMover NE4100", 0x36e1191f, 0xa6617ec8),
- PCMCIA_DEVICE_PROD_ID12("NEC", "PC-9801N-J12", 0x18df0ba0, 0xbc912d76),
- PCMCIA_DEVICE_PROD_ID12("NETGEAR", "FA410TX", 0x9aa79dc3, 0x60e5bc0e),
- PCMCIA_DEVICE_PROD_ID12("Network Everywhere", "Fast Ethernet 10/100 PC Card", 0x820a67b6, 0x31ed1a5f),
- PCMCIA_DEVICE_PROD_ID12("NextCom K.K.", "Next Hawk", 0xaedaec74, 0xad050ef1),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "10/100Mbps Ethernet Card", 0x281f1c5d, 0x6e41773b),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Ethernet", 0x281f1c5d, 0x00b2e941),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "ETHERNET", 0x281f1c5d, 0x3ff7175b),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Ethernet 10BaseT Card", 0x281f1c5d, 0x4de2f6c8),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Ethernet Card", 0x281f1c5d, 0x5e9d92c0),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Ethernet Combo card", 0x281f1c5d, 0x929c486c),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "ETHERNET V1.0", 0x281f1c5d, 0x4d8817c8),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "FastEthernet", 0x281f1c5d, 0xfe871eeb),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast-Ethernet", 0x281f1c5d, 0x45f1f3b4),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "FAST ETHERNET CARD", 0x281f1c5d, 0xec5dbca7),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA LAN", "Ethernet", 0x7500e246, 0x00b2e941),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "LNT-10TN", 0x281f1c5d, 0xe707f641),
- PCMCIA_DEVICE_PROD_ID12("PCMCIAs", "ComboCard", 0xdcfe12d3, 0xcd8906cc),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", "UE2212", 0x281f1c5d, 0xbf17199b),
- PCMCIA_DEVICE_PROD_ID12("PCMCIA", " Ethernet NE2000 Compatible", 0x281f1c5d, 0x42d5d7e1),
- PCMCIA_DEVICE_PROD_ID12("PRETEC", "Ethernet CompactLAN 10baseT 3.3V", 0xebf91155, 0x30074c80),
- PCMCIA_DEVICE_PROD_ID12("PRETEC", "Ethernet CompactLAN 10BaseT 3.3V", 0xebf91155, 0x7f5a4f50),
- PCMCIA_DEVICE_PROD_ID12("Psion Dacom", "Gold Card Ethernet", 0xf5f025c2, 0x3a30e110),
- PCMCIA_DEVICE_PROD_ID12("=RELIA==", "Ethernet", 0xcdd0644a, 0x00b2e941),
- PCMCIA_DEVICE_PROD_ID12("RIOS Systems Co.", "PC CARD3 ETHERNET", 0x7dd33481, 0x10b41826),
- PCMCIA_DEVICE_PROD_ID12("RP", "1625B Ethernet NE2000 Compatible", 0xe3e66e22, 0xb96150df),
- PCMCIA_DEVICE_PROD_ID12("RPTI", "EP400 Ethernet NE2000 Compatible", 0xdc6f88fd, 0x4a7e2ae0),
- PCMCIA_DEVICE_PROD_ID12("RPTI", "EP401 Ethernet NE2000 Compatible", 0xdc6f88fd, 0x4bcbd7fd),
- PCMCIA_DEVICE_PROD_ID12("RPTI LTD.", "EP400", 0xc53ac515, 0x81e39388),
- PCMCIA_DEVICE_PROD_ID12("SCM", "Ethernet Combo card", 0xbdc3b102, 0x929c486c),
- PCMCIA_DEVICE_PROD_ID12("Seiko Epson Corp.", "Ethernet", 0x09928730, 0x00b2e941),
- PCMCIA_DEVICE_PROD_ID12("SMC", "EZCard-10-PCMCIA", 0xc4f8b18b, 0xfb21d265),
- PCMCIA_DEVICE_PROD_ID12("Socket Communications Inc", "Socket EA PCMCIA LAN Adapter Revision D", 0xc70a4760, 0x2ade483e),
- PCMCIA_DEVICE_PROD_ID12("Socket Communications Inc", "Socket EA PCMCIA LAN Adapter Revision E", 0xc70a4760, 0x5dd978a8),
- PCMCIA_DEVICE_PROD_ID12("TDK", "LAK-CD031 for PCMCIA", 0x1eae9475, 0x0ed386fa),
- PCMCIA_DEVICE_PROD_ID12("Telecom Device K.K.", "SuperSocket RE450T", 0x466b05f0, 0x8b74bc4f),
- PCMCIA_DEVICE_PROD_ID12("Telecom Device K.K.", "SuperSocket RE550T", 0x466b05f0, 0x33c8db2a),
- PCMCIA_DEVICE_PROD_ID13("Hypertec", "EP401", 0x8787bec7, 0xf6e4a31e),
- PCMCIA_DEVICE_PROD_ID13("KingMax Technology Inc.", "Ethernet Card", 0x932b7189, 0x5e9d92c0),
- PCMCIA_DEVICE_PROD_ID13("LONGSHINE", "EP401", 0xf866b0b0, 0xf6e4a31e),
- PCMCIA_DEVICE_PROD_ID13("Xircom", "CFE-10", 0x2e3ee845, 0x22a49f89),
- PCMCIA_DEVICE_PROD_ID1("CyQ've 10 Base-T LAN CARD", 0x94faf360),
- PCMCIA_DEVICE_PROD_ID1("EP-210 PCMCIA LAN CARD.", 0x8850b4de),
- PCMCIA_DEVICE_PROD_ID1("ETHER-C16", 0x06a8514f),
- PCMCIA_DEVICE_PROD_ID1("NE2000 Compatible", 0x75b8ad5a),
- PCMCIA_DEVICE_PROD_ID2("EN-6200P2", 0xa996d078),
- /* too generic! */
- /* PCMCIA_DEVICE_PROD_ID12("PCMCIA", "10/100 Ethernet Card", 0x281f1c5d, 0x11b0ffc0), */
- PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "PCMCIA", "EN2218-LAN/MODEM", 0x281f1c5d, 0x570f348e, "cis/PCMLM28.cis"),
- PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "PCMCIA", "UE2218-LAN/MODEM", 0x281f1c5d, 0x6fdcacee, "cis/PCMLM28.cis"),
- PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "Psion Dacom", "Gold Card V34 Ethernet", 0xf5f025c2, 0x338e8155, "cis/PCMLM28.cis"),
- PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "Psion Dacom", "Gold Card V34 Ethernet GSM", 0xf5f025c2, 0x4ae85d35, "cis/PCMLM28.cis"),
- PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "LINKSYS", "PCMLM28", 0xf7cb0b07, 0x66881874, "cis/PCMLM28.cis"),
- PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "TOSHIBA", "Modem/LAN Card", 0xb4585a1a, 0x53f922f8, "cis/PCMLM28.cis"),
- PCMCIA_MFC_DEVICE_CIS_PROD_ID12(0, "DAYNA COMMUNICATIONS", "LAN AND MODEM MULTIFUNCTION", 0x8fdf8f89, 0xdd5ed9e8, "cis/DP83903.cis"),
- PCMCIA_MFC_DEVICE_CIS_PROD_ID4(0, "NSC MF LAN/Modem", 0x58fc6056, "cis/DP83903.cis"),
- PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0175, 0x0000, "cis/DP83903.cis"),
- PCMCIA_DEVICE_CIS_PROD_ID12("Allied Telesis,K.K", "Ethernet LAN Card", 0x2ad62f3c, 0x9fd2f0a2, "cis/LA-PCM.cis"),
- PCMCIA_DEVICE_CIS_PROD_ID12("KTI", "PE520 PLUS", 0xad180345, 0x9d58d392, "cis/PE520.cis"),
- PCMCIA_DEVICE_CIS_PROD_ID12("NDC", "Ethernet", 0x01c43ae1, 0x00b2e941, "cis/NE2K.cis"),
- PCMCIA_DEVICE_CIS_PROD_ID12("PMX ", "PE-200", 0x34f3f1c8, 0x10b59f8c, "cis/PE-200.cis"),
- PCMCIA_DEVICE_CIS_PROD_ID12("TAMARACK", "Ethernet", 0xcf434fba, 0x00b2e941, "cis/tamarack.cis"),
- PCMCIA_DEVICE_PROD_ID12("Ethernet", "CF Size PC Card", 0x00b2e941, 0x43ac239b),
- PCMCIA_DEVICE_PROD_ID123("Fast Ethernet", "CF Size PC Card", "1.0",
- 0xb4be14e3, 0x43ac239b, 0x0877b627),
- PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, pcnet_ids);
-MODULE_FIRMWARE("cis/PCMLM28.cis");
-MODULE_FIRMWARE("cis/DP83903.cis");
-MODULE_FIRMWARE("cis/LA-PCM.cis");
-MODULE_FIRMWARE("cis/PE520.cis");
-MODULE_FIRMWARE("cis/NE2K.cis");
-MODULE_FIRMWARE("cis/PE-200.cis");
-MODULE_FIRMWARE("cis/tamarack.cis");
-
-static struct pcmcia_driver pcnet_driver = {
- .name = "pcnet_cs",
- .probe = pcnet_probe,
- .remove = pcnet_detach,
- .owner = THIS_MODULE,
- .id_table = pcnet_ids,
- .suspend = pcnet_suspend,
- .resume = pcnet_resume,
-};
-module_pcmcia_driver(pcnet_driver);
--
2.53.0
^ permalink raw reply related
* Re: [PATCH v11 02/20] gpu: nova-core: gsp: Extract usable FB region from GSP
From: David Airlie @ 2026-04-21 20:05 UTC (permalink / raw)
To: Joel Fernandes
Cc: John Hubbard, linux-kernel, Miguel Ojeda, Boqun Feng, Gary Guo,
Bjorn Roy Baron, Benno Lossin, Andreas Hindborg, Alice Ryhl,
Trevor Gross, Danilo Krummrich, Daniel Almeida, Koen Koning,
dri-devel, rust-for-linux, Nikola Djukic, Maarten Lankhorst,
Maxime Ripard, Thomas Zimmermann, David Airlie, Simona Vetter,
Jonathan Corbet, Alex Deucher, Christian Koenig, Jani Nikula,
Joonas Lahtinen, Rodrigo Vivi, Tvrtko Ursulin, Huang Rui,
Matthew Auld, Lucas De Marchi, Thomas Hellstrom, Helge Deller,
Alex Gaynor, Boqun Feng, Alistair Popple, Timur Tabi, Edwin Peer,
Alexandre Courbot, Andrea Righi, Andy Ritger, Zhi Wang,
Balbir Singh, Philipp Stanner, Elle Rhumsaa, alexeyi,
Eliot Courtney, joel, linux-doc, amd-gfx, intel-gfx, intel-xe,
linux-fbdev
In-Reply-To: <20260421145521.GA51176@joelbox2>
On Wed, Apr 22, 2026 at 12:55 AM Joel Fernandes <joelagnelf@nvidia.com> wrote:
>
> On Thu, Apr 16, 2026 at 04:26:48PM -0700, John Hubbard wrote:
> > On 4/15/26 2:05 PM, Joel Fernandes wrote:
> > ...
> >
> > Apologies, I found one more minor thing, while looking at a
> > subsequent patch in this series:
> >
> > > impl MessageFromGsp for GetGspStaticInfoReply {
> > > const FUNCTION: MsgFunction = MsgFunction::GetGspStaticInfo;
> > > type Message = GspStaticConfigInfo;
> > > - type InitError = Infallible;
> > > + type InitError = Error;
> > >
> > > fn read(
> > > msg: &Self::Message,
> > > @@ -205,6 +209,7 @@ fn read(
> > > ) -> Result<Self, Self::InitError> {
> > > Ok(GetGspStaticInfoReply {
> > > gpu_name: msg.gpu_name_str(),
> > > + usable_fb_region: msg.first_usable_fb_region().ok_or(ENODEV)?,
> >
> > OK, failing out is correct here. But in addition, we should also
> > log this at dev_err!() level. This is rare, surprising, and actionable,
> > so perfect for that level of logging.
>
> Sure, that works for me. Will add it in for v12.
Just fyi when we get to spark later this will not matter, we will have
no usable_fb_region, though maybe it could just return 0s in that
case.
Dave.
^ permalink raw reply
* [PATCH v5 0/8] Add support for ZTE zx297520v3
From: Stefan Dösinger @ 2026-04-21 20:23 UTC (permalink / raw)
To: Jonathan Corbet, Shuah Khan, Russell King, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Arnd Bergmann,
Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij,
Drew Fustini, Greg Kroah-Hartman, Jiri Slaby
Cc: linux-doc, linux-kernel, linux-arm-kernel, devicetree, soc,
linux-serial, Stefan Dösinger
Hi,
This is a follow-up on my RFC patches from January [0] for ZTE's
zx297520v3 chipset. This chipset is popular in cheap LTE-to-wifi routers
sold in developing countries. My goal is to run OpenWRT on them. I made
more progress in more work on this SoC and it is time to get serious
about code review and upstreaming.
Since my version in January I managed to get more hardware running: SPI,
I2C, PMIC with real time clock and voltage regulators, Watchdog. LTE is
not working yet, but I am able to start the coprocessor that handles it
and talk to it via mailbox + shared memory. Wifi is working on a few
more devices. Since WiFi, USB and Ethernet are working, the devices can
have actual use with OpenWRT even without LTE.
Another hacker created a free software program to talk to the USB loader
[1] and boot U-Boot and Linux without modifying the on disk files. At
the moment it needs a proprietary blob, so my documentation is
emphasising booting with the on-device U-Boot.
This patchset here is mostly unmodified from the version I sent in
January. It is the bare minimum to get an interactive shell working on
the UART. Future patches can be found on my git repository [2] for those
curious to peek ahead. The first 30 patches are in reasonable shape, but
the further you go the more cleanup is necessary. I expect all of the
patches go require a few rounds of feedback though.
My plan for upstreaming is largly this:
1) This bare minimum boot patchset
2) Add clock and pinctrl drivers
3) Add standard hardware to the device tree
4) Add zx29 specific drivers one by one: Watchdog, spi, i2c, DMA, PMIC,
battery
5) SDIO backend for rtl8xxxu
6) rproc, mailbox and rpmsg
I am willing to maintain support for the SoC within reason. My patches
add myself as maintainer. This is a hobby project for me though, keep
that in mind if you want to ship a commercial product with these SoCs
and upstreaming Linux.
Cheers,
Stefan
0: https://lists.infradead.org/pipermail/linux-arm-kernel/2026-January/1099306.html
1: https://github.com/zx297520v3-mainline/zx297520v3-loader
2: https://gitlab.com/stefandoesinger/zx297520-kernel/
Patch changelog:
v5:
Spelling fixes
Renamed dlink-dwr-932m.dts to zx297520v3-dlink-dwr932m.dts
DT binding indentation fixes
Use a manufacturer 0x8b for the UART, fix patch prefix
Declare all UARTs, remove uart aliases for now
Consistent license declarations. I made every new file except the DT
binding GPL-2.0-only but I don't particularly mind GPL-2.0-or-later
either.
v4: rename zx29.yaml to zte.yaml and add board enums
v3: Remove [RFC] tag, add defconfig
v2: checkpatch.pl fixes
Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
---
Changes in v5:
- EDITME: describe what is new in this series revision.
- EDITME: use bulletpoints and terse descriptions.
- Link to v4: https://lore.kernel.org/r/20260416-send-v4-0-e19d02b944ec@gmail.com
---
Stefan Dösinger (8):
ARM: zte: Add zx297520v3 platform support
dt-bindings: arm: Add zx297520v3 board binding
ARM: dts: Add D-Link DWR-932M support
ARM: zte: Add support for zx29 low level debug
ARM: dts: Add an armv7 timer for zx297520v3
amba/serial: amba-pl011: Bring back zx29 UART support
ARM: dts: Declare UARTs on zx297520v3 boards
ARM: defconfig: Add a zx29 defconfig file
Documentation/arch/arm/zte/zx297520v3.rst | 158 +++++++++++++++++++++
Documentation/devicetree/bindings/arm/zte.yaml | 25 ++++
MAINTAINERS | 6 +
arch/arm/Kconfig | 2 +
arch/arm/Kconfig.debug | 12 ++
arch/arm/Makefile | 1 +
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/zte/Makefile | 3 +
arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts | 22 +++
arch/arm/boot/dts/zte/zx297520v3.dtsi | 103 ++++++++++++++
arch/arm/configs/zx29_defconfig | 89 ++++++++++++
arch/arm/include/debug/pl01x.S | 7 +
arch/arm/mach-zte/Kconfig | 26 ++++
arch/arm/mach-zte/Makefile | 2 +
arch/arm/mach-zte/zx297520v3.c | 19 +++
drivers/tty/serial/amba-pl011.c | 42 ++++++
16 files changed, 518 insertions(+)
---
base-commit: 028ef9c96e96197026887c0f092424679298aae8
change-id: 20260416-send-5c08e095e5c9
Best regards,
--
Stefan Dösinger <stefandoesinger@gmail.com>
^ permalink raw reply
* [PATCH v5 1/8] ARM: zte: Add zx297520v3 platform support
From: Stefan Dösinger @ 2026-04-21 20:23 UTC (permalink / raw)
To: Jonathan Corbet, Shuah Khan, Russell King, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Arnd Bergmann,
Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij,
Drew Fustini, Greg Kroah-Hartman, Jiri Slaby
Cc: linux-doc, linux-kernel, linux-arm-kernel, devicetree, soc,
linux-serial, Stefan Dösinger
In-Reply-To: <20260421-send-v5-0-ace038e63515@gmail.com>
This SoC is used in low end LTE-to-WiFi routers, for example some D-Link
DWR 932 revisions, ZTE K10, ZLT S10 4G, but also models that are branded
and sold by ISPs themselves. They are widespread in Africa, China,
Russia and Eastern Europe.
This SoC is a relative of the zx296702 and zx296718 that had some
upstream support until commit 89d4f98ae90d ("ARM: remove zte zx
platform"). My eventual goal is to enable OpenWRT to run on these
devices.
Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
---
Documentation/arch/arm/zte/zx297520v3.rst | 158 ++++++++++++++++++++++++++++++
MAINTAINERS | 4 +
arch/arm/Kconfig | 2 +
arch/arm/Makefile | 1 +
arch/arm/mach-zte/Kconfig | 26 +++++
arch/arm/mach-zte/Makefile | 2 +
arch/arm/mach-zte/zx297520v3.c | 19 ++++
7 files changed, 212 insertions(+)
diff --git a/Documentation/arch/arm/zte/zx297520v3.rst b/Documentation/arch/arm/zte/zx297520v3.rst
new file mode 100644
index 000000000000..6621ea72769f
--- /dev/null
+++ b/Documentation/arch/arm/zte/zx297520v3.rst
@@ -0,0 +1,158 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+====================================
+Booting Linux on ZTE zx297520v3 SoCs
+====================================
+
+...............................................................................
+
+Author: Stefan Dösinger
+
+Date : 27 Jan 2026
+
+1. Hardware description
+---------------------------
+Zx297520v3 SoCs use a 64 bit capable Cortex-A53 CPU and GICv3, although they
+run in arm32 mode only. The CPU has support EL3, but no hypervisor (EL2) and
+it seems to lack VFP and NEON.
+
+The SoC is used in a number of cheap LTE to WiFi routers, both battery powered
+MiFis and stationary CPEs. In addition to the CPU these devices usually have
+64 MB Ram (although some is shared with the LTE chip), 128 MB NAND flash, an
+SDIO connected RTL8192-type Wifi chip limited to 2.4 ghz operation, USB 2,
+and buttons. Devices with as low as 32 MB or as high as 128 MB ram exist, as
+do devices with 8 or 16 MB of NOR flash.
+
+Some devices, especially the stationary ones, have 100 mbit Ethernet and an
+Ethernet switch.
+
+Usually the devices have LEDs for status indication, although some have SPI or
+I2C connected displays
+
+Some have an SD card slot. If it exists, it is a better choice for the root
+file system because it easily outperforms the built-in NAND.
+
+The LTE interface runs on a separate DSP called ZSP880. It is probably derived
+from LSI ZSPs and has an undocumented instruction set. The ZSP communicates
+with the main CPU via SRAM and DRAM and a mailbox hardware that can generate
+IRQs on either ends.
+
+There is also a Cortex M0 CPU, which is responsible for early HW initialization
+and starting the Cortex A53 CPU. It does not have any essential purpose once
+U-Boot is started. A SRAM-Based handover protocol exists to run custom code on
+this CPU.
+
+2. Booting via USB
+---------------------------
+
+The Boot ROM has support for booting custom code via USB. This mode can be
+entered by connecting a Boot PIN to GND or by modifying the third byte on NAND
+(set it to anything other than 0x5A aka 'Z'). A free software tool to start
+custom U-Boot and kernels can be found here:
+
+https://github.com/zx297520v3-mainline/zx297520v3-loader
+
+If USB download mode is entered but no boot commands are sent through USB, the
+device will proceed to boot normally after a few seconds. It is therefore
+possible to enable USB boot permanently and still leave the default boot files
+in place.
+
+3. Building for built-in U-Boot
+---------------------------
+The devices come with an ancient U-Boot that loads legacy uImages from NAND and
+boots them without a chance for the user to interrupt. The images are stored in
+files ap_cpuap.bin and ap_recovery.bin on a jffs2 partition named imagefs,
+usually mtd4. A file named "fotaflag" switches between the two modes.
+
+In addition to the uImage header, those files have a 384 byte signature header,
+which is used for authenticating the images on some devices. Most devices have
+this authentication disabled and it is enough to pad the uImage files with 384
+zero bytes.
+
+Builtin U-Boot also poorly sets up the CPU. Read the next section for details
+on this. It has no support for loading DTBs, so CONFIG_ARM_APPENDED_DTB is
+needed.
+
+So to build an image that boots from NAND the following steps are necessary:
+
+1) Patch the assembly code from section 3 into arch/arm/kernel/head.S.
+2) make zx29_defconfig
+3) make [-j x]
+4) cat arch/arm/boot/zImage arch/arm/boot/dts/zte/[device].dtb > kernel+dtb
+5) mkimage -A arm -O linux -T kernel -C none -a 0x20008000 -d kernel+dtb uimg
+6) dd if=/dev/zero bs=1 count=384 of=ap_recovery.bin
+7) cat uimg >> ap_recovery.bin
+8) Place this file onto imagefs on the device. Delete ap_cpuap.bin if the
+free space is not enough.
+9) Create the file fotaflag: echo -n FOTA-RECOVERY > fotaflag
+
+For development, booting ap_recovery.bin is recommended because the normal boot
+mode arms the watchdog before starting the kernel.
+
+4. CPU and GIC Setup
+---------------------------
+
+Generally CPU and GICv3 need to be set up according to the requirements spelled
+out in Documentation/arch/arm64/booting.rst. For zx297520v3 this means:
+
+1. GICD_CTLR.DS=1 to disable GIC security
+2. Enable access to ICC_SRE
+3. Disable trapping IRQs into monitor mode
+4. Configure EL2 and below to run in insecure mode.
+5. Configure timer PPIs to active-low.
+
+The kernel sources provided by ZTE do not boot either (interrupts do not work
+at all). They are incomplete in other aspects too, so it is assumed that there
+is some workaround similar to the one described in this document somewhere in
+the binary blobs.
+
+The assembly code below is given as an example of how to achieve this:
+
+```
+#include <linux/irqchip/arm-gic-v3.h>
+#include <asm/assembler.h>
+#include <asm/cp15.h>
+
+@ This allows EL1 to handle ints hat are normally handled by EL2/3.
+ldr r3, =0xf2000000
+ldr r4, =(GICD_CTLR_ARE_NS | GICD_CTLR_DS)
+str r4, [r3]
+
+cps #MON_MODE
+
+@ Work in non-secure physical address space: SCR_EL3.NS = 1. At least the UART
+@ seems to respond only to non-secure addresses. I have taken insipiration from
+@ Raspberry pi's armstub7.S here.
+@
+@ ARM docs say modify this bit in monitor mode only...
+mov r3, #0x131 @ non-secure, Make F, A bits in CPSR writeable
+ @ Allow hypervisor call.
+mcr p15, 0, r3, c1, c1, 0
+
+@ AP_PPI_MODE_REG: Configure timer PPIs (10, 11, 13, 14) to active-low.
+ldr r3, =0xF22020a8
+ldr r4, =0x50
+str r4, [r3]
+ldr r3, =0xF22020ac
+ldr r4, =0x14
+str r4, [r3]
+
+@ Enable EL2 access to ICC_SRE (bit 3, ICC_SRE_EL3.Enable). Enable system reg
+@ access to GICv3 registers (bit 0, ICC_SRE_EL3.SRE) for EL1 and EL3.
+mrc p15, 6, r3, c12, c12, 5 @ ICC_SRE_EL3
+orr r3, #0x9 @ FIXME: No defines for SRE_EL3 values?
+mcr p15, 6, r3, c12, c12, 5
+mrc p15, 0, r3, c12, c12, 5 @ ICC_SRE_EL1
+orr r3, #(ICC_SRE_EL1_SRE)
+mcr p15, 0, r3, c12, c12, 5
+
+@ Like ICC_SRE_EL3, enable EL1 access to ICC_SRE and system register access
+@ for EL2.
+mrc p15, 4, r3, c12, c9, 5 @ ICC_SRE_EL2 aka ICC_HSRE
+orr r3, r3, #(ICC_SRE_EL2_ENABLE | ICC_SRE_EL2_SRE)
+mcr p15, 4, r3, c12, c9, 5
+isb
+
+@ Back to SVC mode. TODO: Doesn't safe_svcmode_maskall do this for us anyway?
+cps #SVC_MODE
+```
diff --git a/MAINTAINERS b/MAINTAINERS
index d1cc0e12fe1f..974d7a98956a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -29200,6 +29200,10 @@ F: include/linux/zswap.h
F: mm/zswap.c
F: tools/testing/selftests/cgroup/test_zswap.c
+ZX29
+M: Stefan Dösinger <stefandoesinger@gmail.com>
+F: arch/arm/mach-zte/
+
SENARYTECH AUDIO CODEC DRIVER
M: bo liu <bo.liu@senarytech.com>
S: Maintained
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ec33376f8e2b..4217ed704e48 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -464,6 +464,8 @@ source "arch/arm/mach-versatile/Kconfig"
source "arch/arm/mach-vt8500/Kconfig"
+source "arch/arm/mach-zte/Kconfig"
+
source "arch/arm/mach-zynq/Kconfig"
# ARMv7-M architecture
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index b7de4b6b284c..573813ef5e77 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -223,6 +223,7 @@ machine-$(CONFIG_ARCH_SUNXI) += sunxi
machine-$(CONFIG_ARCH_TEGRA) += tegra
machine-$(CONFIG_ARCH_U8500) += ux500
machine-$(CONFIG_ARCH_VT8500) += vt8500
+machine-$(CONFIG_ARCH_ZTE) += zte
machine-$(CONFIG_ARCH_ZYNQ) += zynq
machine-$(CONFIG_PLAT_VERSATILE) += versatile
machine-$(CONFIG_PLAT_SPEAR) += spear
diff --git a/arch/arm/mach-zte/Kconfig b/arch/arm/mach-zte/Kconfig
new file mode 100644
index 000000000000..2e3abee94994
--- /dev/null
+++ b/arch/arm/mach-zte/Kconfig
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menuconfig ARCH_ZTE
+ bool "ZTE zx family"
+ depends on ARCH_MULTI_V7
+ help
+ Support for ZTE zx-based family of processors.
+
+if ARCH_ZTE
+
+config SOC_ZX297520V3
+ default y if ARCH_ZTE
+ bool "zx297520v3"
+ select ARM_GIC_V3
+ select ARM_AMBA
+ select HAVE_ARM_ARCH_TIMER
+ select PM_GENERIC_DOMAINS if PM
+ help
+ Support for ZTE zx297520v3 SoC. It is a single core SoC used in cheap
+ LTE to WiFi routers. These devices can be identified by the occurrence
+ of the string "zx297520v3" in the boot output and /proc/cpuinfo of
+ their stock firmware.
+
+ Please read Documentation/arch/arm/zte/zx297520v3.rst on how to boot
+ the kernel.
+
+endif
diff --git a/arch/arm/mach-zte/Makefile b/arch/arm/mach-zte/Makefile
new file mode 100644
index 000000000000..1bfe4fddd6af
--- /dev/null
+++ b/arch/arm/mach-zte/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_SOC_ZX297520V3) += zx297520v3.o
diff --git a/arch/arm/mach-zte/zx297520v3.c b/arch/arm/mach-zte/zx297520v3.c
new file mode 100644
index 000000000000..c11c7e836f91
--- /dev/null
+++ b/arch/arm/mach-zte/zx297520v3.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2026 Stefan Dösinger
+ */
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+
+static const char *const zx297520v3_dt_compat[] __initconst = {
+ "zte,zx297520v3",
+ NULL,
+};
+
+DT_MACHINE_START(ZX, "ZTE zx297520v3 (Device Tree)")
+ .dt_compat = zx297520v3_dt_compat,
+MACHINE_END
--
2.53.0
^ permalink raw reply related
* [PATCH v5 2/8] dt-bindings: arm: Add zx297520v3 board binding
From: Stefan Dösinger @ 2026-04-21 20:23 UTC (permalink / raw)
To: Jonathan Corbet, Shuah Khan, Russell King, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Arnd Bergmann,
Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij,
Drew Fustini, Greg Kroah-Hartman, Jiri Slaby
Cc: linux-doc, linux-kernel, linux-arm-kernel, devicetree, soc,
linux-serial, Stefan Dösinger
In-Reply-To: <20260421-send-v5-0-ace038e63515@gmail.com>
Add a compatible for boards based on the ZTE zx297520v3 SoC.
Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
---
The list of devices is the devices I have access to for testing. There
are many more devices based on this board and it is not always easy to
identify them. Often they are sold without any branding ("4G home
router") or with mobile carrier branding.
---
Documentation/devicetree/bindings/arm/zte.yaml | 25 +++++++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 26 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/zte.yaml b/Documentation/devicetree/bindings/arm/zte.yaml
new file mode 100644
index 000000000000..4b0d6d53402b
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/zte.yaml
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/zte.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ZTE zx29
+
+maintainers:
+ - Stefan Dösinger <stefandoesinger@gmail.com>
+
+properties:
+ $nodename:
+ const: "/"
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - dlink,dwr932m
+ - hgsd,r310
+ - tecno,tr118
+ - zte,k10
+ - const: zte,zx297520v3
+
+additionalProperties: true
diff --git a/MAINTAINERS b/MAINTAINERS
index 974d7a98956a..bcade90ca14e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -29202,6 +29202,7 @@ F: tools/testing/selftests/cgroup/test_zswap.c
ZX29
M: Stefan Dösinger <stefandoesinger@gmail.com>
+F: Documentation/devicetree/bindings/arm/zte.yaml
F: arch/arm/mach-zte/
SENARYTECH AUDIO CODEC DRIVER
--
2.53.0
^ permalink raw reply related
* [PATCH v5 3/8] ARM: dts: Add D-Link DWR-932M support
From: Stefan Dösinger @ 2026-04-21 20:23 UTC (permalink / raw)
To: Jonathan Corbet, Shuah Khan, Russell King, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Arnd Bergmann,
Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij,
Drew Fustini, Greg Kroah-Hartman, Jiri Slaby
Cc: linux-doc, linux-kernel, linux-arm-kernel, devicetree, soc,
linux-serial, Stefan Dösinger
In-Reply-To: <20260421-send-v5-0-ace038e63515@gmail.com>
This adds base DT definition for zx297520v3 and one board that consumes it.
Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
---
Changes in v5:
Prepend the SoC name in the device specific DTS filename.
---
MAINTAINERS | 1 +
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/zte/Makefile | 3 ++
arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts | 18 ++++++++++
arch/arm/boot/dts/zte/zx297520v3.dtsi | 40 ++++++++++++++++++++++
5 files changed, 63 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index bcade90ca14e..f7ca0d478e81 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -29203,6 +29203,7 @@ F: tools/testing/selftests/cgroup/test_zswap.c
ZX29
M: Stefan Dösinger <stefandoesinger@gmail.com>
F: Documentation/devicetree/bindings/arm/zte.yaml
+F: arch/arm/boot/dts/zte
F: arch/arm/mach-zte/
SENARYTECH AUDIO CODEC DRIVER
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index efe38eb25301..28fba538d552 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -39,3 +39,4 @@ subdir-y += unisoc
subdir-y += vt8500
subdir-y += xen
subdir-y += xilinx
+subdir-y += zte
diff --git a/arch/arm/boot/dts/zte/Makefile b/arch/arm/boot/dts/zte/Makefile
new file mode 100644
index 000000000000..f052cfbd636c
--- /dev/null
+++ b/arch/arm/boot/dts/zte/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+dtb-$(CONFIG_SOC_ZX297520V3) += \
+ zx297520v3-dlink-dwr932m.dtb
diff --git a/arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts b/arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts
new file mode 100644
index 000000000000..ac20215fddef
--- /dev/null
+++ b/arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2026 Stefan Dösinger <stefandoesinger@gmail.com>
+ */
+
+/dts-v1/;
+
+#include "zx297520v3.dtsi"
+
+/ {
+ model = "D-Link DWR-932M";
+ compatible = "dlink,dwr932m", "zte,zx297520v3";
+
+ memory@20000000 {
+ device_type = "memory";
+ reg = <0x20000000 0x04000000>;
+ };
+};
diff --git a/arch/arm/boot/dts/zte/zx297520v3.dtsi b/arch/arm/boot/dts/zte/zx297520v3.dtsi
new file mode 100644
index 000000000000..0fff00f910d6
--- /dev/null
+++ b/arch/arm/boot/dts/zte/zx297520v3.dtsi
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2026 Stefan Dösinger <stefandoesinger@gmail.com>
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0>;
+ };
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges;
+
+ gic: interrupt-controller@f2000000 {
+ compatible = "arm,gic-v3";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0xf2000000 0x10000>,
+ <0xf2040000 0x20000>;
+ };
+ };
+};
--
2.53.0
^ permalink raw reply related
* [PATCH v5 4/8] ARM: zte: Add support for zx29 low level debug
From: Stefan Dösinger @ 2026-04-21 20:23 UTC (permalink / raw)
To: Jonathan Corbet, Shuah Khan, Russell King, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Arnd Bergmann,
Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij,
Drew Fustini, Greg Kroah-Hartman, Jiri Slaby
Cc: linux-doc, linux-kernel, linux-arm-kernel, devicetree, soc,
linux-serial, Stefan Dösinger
In-Reply-To: <20260421-send-v5-0-ace038e63515@gmail.com>
This is based on the removed zx29 code. A separate (more complicated)
patch will re-add the register map to the pl011 serial driver.
Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
---
I am unsure about the virtual address. It doesn't seem to matter, as
long as it is a valid address. This address is based on the old removed
code. Is there a rule-of-thumb physical to virtual mapping I can use to
give a sensible default value?
---
arch/arm/Kconfig.debug | 12 ++++++++++++
arch/arm/include/debug/pl01x.S | 7 +++++++
2 files changed, 19 insertions(+)
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 366f162e147d..98d8a5a60048 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1331,6 +1331,16 @@ choice
This option selects UART0 on VIA/Wondermedia System-on-a-chip
devices, including VT8500, WM8505, WM8650 and WM8850.
+ config DEBUG_ZTE_ZX
+ bool "Kernel low-level debugging via zx29 UART"
+ select DEBUG_UART_PL01X
+ depends on ARCH_ZTE
+ help
+ Say Y here if you are enabling ZTE zx297520v3 SOC and need
+ debug UART support. This UART is a PL011 with different
+ register addresses. The UART for boot messages on zx29 boards
+ is usually UART1 and is operating at 921600 8N1.
+
config DEBUG_ZYNQ_UART0
bool "Kernel low-level debugging on Xilinx Zynq using UART0"
depends on ARCH_ZYNQ
@@ -1545,6 +1555,7 @@ config DEBUG_UART_8250
config DEBUG_UART_PHYS
hex "Physical base address of debug UART"
+ default 0x01408000 if DEBUG_ZTE_ZX
default 0x01c28000 if DEBUG_SUNXI_UART0
default 0x01c28400 if DEBUG_SUNXI_UART1
default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
@@ -1701,6 +1712,7 @@ config DEBUG_UART_VIRT
default 0xf31004c0 if DEBUG_MESON_UARTAO
default 0xf4090000 if DEBUG_LPC32XX
default 0xf4200000 if DEBUG_GEMINI
+ default 0xf4708000 if DEBUG_ZTE_ZX
default 0xf6200000 if DEBUG_PXA_UART1
default 0xf7000000 if DEBUG_SUN9I_UART0
default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
diff --git a/arch/arm/include/debug/pl01x.S b/arch/arm/include/debug/pl01x.S
index c7e02d0628bf..0c7bfa4c10db 100644
--- a/arch/arm/include/debug/pl01x.S
+++ b/arch/arm/include/debug/pl01x.S
@@ -8,6 +8,13 @@
*/
#include <linux/amba/serial.h>
+#ifdef CONFIG_DEBUG_ZTE_ZX
+#undef UART01x_DR
+#undef UART01x_FR
+#define UART01x_DR 0x04
+#define UART01x_FR 0x14
+#endif
+
#ifdef CONFIG_DEBUG_UART_PHYS
.macro addruart, rp, rv, tmp
ldr \rp, =CONFIG_DEBUG_UART_PHYS
--
2.53.0
^ permalink raw reply related
* [PATCH v5 5/8] ARM: dts: Add an armv7 timer for zx297520v3
From: Stefan Dösinger @ 2026-04-21 20:23 UTC (permalink / raw)
To: Jonathan Corbet, Shuah Khan, Russell King, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Arnd Bergmann,
Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij,
Drew Fustini, Greg Kroah-Hartman, Jiri Slaby
Cc: linux-doc, linux-kernel, linux-arm-kernel, devicetree, soc,
linux-serial, Stefan Dösinger
In-Reply-To: <20260421-send-v5-0-ace038e63515@gmail.com>
The stock kernel does not use this timer, but it seems to work fine. The
board has other board-specific timers that would need a driver and I see
no reason to bother with them since the arm standard timer works.
The caveat is the non-standard GIC setup needed to handle the timer's
level-low PPI. This is the responsibility of the boot loader and
documented in Documentation/arch/arm/zte/zx297520v3.rst.
Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
---
arch/arm/boot/dts/zte/zx297520v3.dtsi | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/arm/boot/dts/zte/zx297520v3.dtsi b/arch/arm/boot/dts/zte/zx297520v3.dtsi
index 0fff00f910d6..903050c684cb 100644
--- a/arch/arm/boot/dts/zte/zx297520v3.dtsi
+++ b/arch/arm/boot/dts/zte/zx297520v3.dtsi
@@ -20,6 +20,21 @@ cpu@0 {
};
};
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+ clock-frequency = <26000000>;
+ interrupt-parent = <&gic>;
+ /* I don't think uboot sets CNTVOFF and the stock kernel doesn't use the
+ * arm timer at all. Since this is a single CPU system I don't think it
+ * really matters that the offset is random though.
+ */
+ arm,cpu-registers-not-fw-configured;
+ };
+
soc {
#address-cells = <1>;
#size-cells = <1>;
@@ -27,6 +42,15 @@ soc {
interrupt-parent = <&gic>;
ranges;
+ /* The GIC has a non-standard way of configuring ints between level-low/level
+ * high or rising edge/falling edge at 0xf2202070 and onwards. See AP_INT_MODE_BASE
+ * and AP_PPI_MODE_REG in the ZTE kernel, although the offsets in the kernel source
+ * seem wrong.
+ *
+ * Everything defaults to active-high/rising edge, but the timer is active-low. We
+ * currently rely on the boot loader to change timer IRQs to active-low for us for
+ * now.
+ */
gic: interrupt-controller@f2000000 {
compatible = "arm,gic-v3";
interrupt-controller;
--
2.53.0
^ permalink raw reply related
* [PATCH v5 6/8] amba/serial: amba-pl011: Bring back zx29 UART support
From: Stefan Dösinger @ 2026-04-21 20:23 UTC (permalink / raw)
To: Jonathan Corbet, Shuah Khan, Russell King, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Arnd Bergmann,
Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij,
Drew Fustini, Greg Kroah-Hartman, Jiri Slaby
Cc: linux-doc, linux-kernel, linux-arm-kernel, devicetree, soc,
linux-serial, Stefan Dösinger
In-Reply-To: <20260421-send-v5-0-ace038e63515@gmail.com>
This is based on code removed in commit 89d4f98ae90d ("ARM: remove zte
zx platform"). I did not bring back the zx29-uart .compatible as the
arm,primecell-periphid does the job.
Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
---
Changes since v4:
Use ZTE's JEDEC ID instead of 0xfe for the DT-Provided AMBA ID.
---
drivers/tty/serial/amba-pl011.c | 42 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 7f17d288c807..f24cc403d9e0 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -216,6 +216,38 @@ static struct vendor_data vendor_st = {
.get_fifosize = get_fifosize_st,
};
+static const u16 pl011_zte_offsets[REG_ARRAY_SIZE] = {
+ [REG_DR] = ZX_UART011_DR,
+ [REG_FR] = ZX_UART011_FR,
+ [REG_LCRH_RX] = ZX_UART011_LCRH,
+ [REG_LCRH_TX] = ZX_UART011_LCRH,
+ [REG_IBRD] = ZX_UART011_IBRD,
+ [REG_FBRD] = ZX_UART011_FBRD,
+ [REG_CR] = ZX_UART011_CR,
+ [REG_IFLS] = ZX_UART011_IFLS,
+ [REG_IMSC] = ZX_UART011_IMSC,
+ [REG_RIS] = ZX_UART011_RIS,
+ [REG_MIS] = ZX_UART011_MIS,
+ [REG_ICR] = ZX_UART011_ICR,
+ [REG_DMACR] = ZX_UART011_DMACR,
+};
+
+static unsigned int get_fifosize_zte(struct amba_device *dev)
+{
+ return 16;
+}
+
+static struct vendor_data vendor_zte = {
+ .reg_offset = pl011_zte_offsets,
+ .access_32b = true,
+ .ifls = UART011_IFLS_RX4_8 | UART011_IFLS_TX4_8,
+ .fr_busy = ZX_UART01x_FR_BUSY,
+ .fr_dsr = ZX_UART01x_FR_DSR,
+ .fr_cts = ZX_UART01x_FR_CTS,
+ .fr_ri = ZX_UART011_FR_RI,
+ .get_fifosize = get_fifosize_zte,
+};
+
/* Deals with DMA transactions */
struct pl011_dmabuf {
@@ -3081,6 +3113,16 @@ static const struct amba_id pl011_ids[] = {
.mask = 0x00ffffff,
.data = &vendor_st,
},
+ {
+ /* This is an invented ID. The actual hardware that contains
+ * these ZTE UARTs (zx29 boards) has no AMBA PIDs stored. ZTE
+ * JEDEC ID (ignoring banks) and the "011" part number as used
+ * by ARM.
+ */
+ .id = 0x0008c011,
+ .mask = 0x000fffff,
+ .data = &vendor_zte,
+ },
{ 0, 0 },
};
--
2.53.0
^ permalink raw reply related
* [PATCH v5 7/8] ARM: dts: Declare UARTs on zx297520v3 boards
From: Stefan Dösinger @ 2026-04-21 20:23 UTC (permalink / raw)
To: Jonathan Corbet, Shuah Khan, Russell King, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Arnd Bergmann,
Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij,
Drew Fustini, Greg Kroah-Hartman, Jiri Slaby
Cc: linux-doc, linux-kernel, linux-arm-kernel, devicetree, soc,
linux-serial, Stefan Dösinger
In-Reply-To: <20260421-send-v5-0-ace038e63515@gmail.com>
Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
---
Changes since v4:
* Declare all uarts
* Remove the UART aliases for now. I can revisit this when I get my
hands on a board that exposes two UARTs.
---
arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts | 4 +++
arch/arm/boot/dts/zte/zx297520v3.dtsi | 39 ++++++++++++++++++++++
2 files changed, 43 insertions(+)
diff --git a/arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts b/arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts
index ac20215fddef..1700f46aba86 100644
--- a/arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts
+++ b/arch/arm/boot/dts/zte/zx297520v3-dlink-dwr932m.dts
@@ -16,3 +16,7 @@ memory@20000000 {
reg = <0x20000000 0x04000000>;
};
};
+
+&uart1 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/zte/zx297520v3.dtsi b/arch/arm/boot/dts/zte/zx297520v3.dtsi
index 903050c684cb..ca65797ed926 100644
--- a/arch/arm/boot/dts/zte/zx297520v3.dtsi
+++ b/arch/arm/boot/dts/zte/zx297520v3.dtsi
@@ -20,6 +20,15 @@ cpu@0 {
};
};
+ /* Base bus clock and default for the UART. It will be replaced once a clock driver has
+ * been added.
+ */
+ uartclk: uartclk: uartclk-26000000 {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <26000000>;
+ };
+
timer {
compatible = "arm,armv7-timer";
interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
@@ -60,5 +69,35 @@ gic: interrupt-controller@f2000000 {
reg = <0xf2000000 0x10000>,
<0xf2040000 0x20000>;
};
+
+ uart0: serial@131000 {
+ compatible = "arm,primecell";
+ arm,primecell-periphid = <0x0018c011>;
+ reg = <0x00131000 0x1000>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&uartclk>, <&uartclk>;
+ clock-names = "uartclk", "apb_pclk";
+ status = "disabled";
+ };
+
+ uart1: serial@1408000 {
+ compatible = "arm,pl011", "arm,primecell";
+ arm,primecell-periphid = <0x0018c011>;
+ reg = <0x01408000 0x1000>;
+ interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&uartclk>, <&uartclk>;
+ clock-names = "uartclk", "apb_pclk";
+ status = "disabled";
+ };
+
+ uart2: serial@140d000 {
+ compatible = "arm,primecell";
+ arm,primecell-periphid = <0x0018c011>;
+ reg = <0x0140d000 0x1000>;
+ interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&uartclk>, <&uartclk>;
+ clock-names = "uartclk", "apb_pclk";
+ status = "disabled";
+ };
};
};
--
2.53.0
^ permalink raw reply related
* [PATCH v5 8/8] ARM: defconfig: Add a zx29 defconfig file
From: Stefan Dösinger @ 2026-04-21 20:23 UTC (permalink / raw)
To: Jonathan Corbet, Shuah Khan, Russell King, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Arnd Bergmann,
Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij,
Drew Fustini, Greg Kroah-Hartman, Jiri Slaby
Cc: linux-doc, linux-kernel, linux-arm-kernel, devicetree, soc,
linux-serial, Stefan Dösinger
In-Reply-To: <20260421-send-v5-0-ace038e63515@gmail.com>
This enables existing drivers that already are (UART) or will be (USB,
GPIO) necessary to operate this board even if they aren't declared in
the DTS yet.
Signed-off-by: Stefan Dösinger <stefandoesinger@gmail.com>
---
arch/arm/configs/zx29_defconfig | 89 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 89 insertions(+)
diff --git a/arch/arm/configs/zx29_defconfig b/arch/arm/configs/zx29_defconfig
new file mode 100644
index 000000000000..a78decd1d525
--- /dev/null
+++ b/arch/arm/configs/zx29_defconfig
@@ -0,0 +1,89 @@
+CONFIG_SYSVIPC=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_EXPERT=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_MMU=y
+CONFIG_ARCH_MULTI_V7=y
+CONFIG_ARCH_ZTE=y
+CONFIG_SOC_ZX297520V3=y
+# FIXME: There is no PSCI on this board, but ARM_GIC_V3 depends on it
+CONFIG_ARM_PSCI=y
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_CMDLINE="console=ttyAMA0 earlyprintk root=/dev/ram rw"
+# CONFIG_SUSPEND is not set
+CONFIG_BINFMT_FLAT=y
+# CONFIG_UEVENT_HELPER is not set
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=4
+CONFIG_CPU_FREQ=y
+CONFIG_CPUFREQ_DT_PLATDEV=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_DEVTMPFS=y # FIXME: This is specific to my initrd. Remove before upstream
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_INPUT_MOUSEDEV is not set
+CONFIG_KEYBOARD_GPIO_POLLED=y
+CONFIG_GPIOLIB=y
+CONFIG_OF_GPIO=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SERIAL_DEV_BUS=y
+CONFIG_SERIAL_DEV_CTRL_TTYPORT=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_MFD_SYSCON=y
+# CONFIG_HID is not set
+CONFIG_PINCTRL=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_PINMUX=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_PINCONF=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_POWER_RESET=y
+CONFIG_RESET_SIMPLE=y
+CONFIG_LEDS_GPIO=y
+CONFIG_USB_DWC2=y
+CONFIG_USB_GADGET=y
+CONFIG_MTD=y
+CONFIG_MTD_OF_PARTS=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_SPI_MASTER=y
+CONFIG_MMC=y
+CONFIG_MMC_DW=y
+CONFIG_MMC_DW_PLTFM=y
+CONFIG_STMMAC_ETH=y
+CONFIG_STMMAC_PLATFORM=y
+CONFIG_MDIO_BUS=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_SRAM=y
+CONFIG_MISC_FILESYSTEMS=y
+CONFIG_JFFS2_FS=y
+CONFIG_CONFIG_TMPFS=y
+CONFIG_PRINTK_TIME=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_DEBUG_LL=y
+CONFIG_DEBUG_ZTE_ZX=y
+CONFIG_DEBUG_LL_INCLUDE="debug/pl01x.S"
+CONFIG_DEBUG_UART_PL01X=y
+CONFIG_DEBUG_UART_PHYS=0x01408000
+CONFIG_DEBUG_UART_VIRT=0xf4708000
--
2.53.0
^ permalink raw reply related
* Re: [PATCH net 00/18] Remove a number of ISA and PCMCIA Ethernet drivers
From: Byron Stanoszek @ 2026-04-21 20:44 UTC (permalink / raw)
To: Andrew Lunn
Cc: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Simon Horman, Jonathan Corbet, Shuah Khan,
linux-kernel, netdev, linux-doc
In-Reply-To: <20260421-v7-0-0-net-next-driver-removal-v1-v1-0-69517c689d1f@lunn.ch>
On Tue, 21 Apr 2026, Andrew Lunn wrote:
> These old drivers have not been much of a Maintenance burden until
> recently. Now there are more newbies using AI and fuzzers finding
> issues, resulting in more work for Maintainers. Fixing these old
> drivers make little sense, if it is not clear they have users.
>
> drivers: net: 3com: 3c59x: Remove this driver
Hi Andrew,
I happen to still use this driver on several hundred industrial PC
installations that were outfitted with 3com 3C905-B & CX cards 15+ years ago.
The old hardware still runs, therefore those cards haven't needed to be
replaced. I keep these systems up to date with the latest Linux kernel roughly
once per year.
I understand the maintenance burden, but I would be delighted to continue
receiving bug fixes for this driver via the mainline Linux kernel if you are
still willing to continue to support it.
Thanks and best regards,
-Byron
^ permalink raw reply
* Re: [PATCH v2 00/16] fs,x86/resctrl: Add kernel-mode (e.g., PLZA) support to the resctrl subsystem
From: Reinette Chatre @ 2026-04-21 20:57 UTC (permalink / raw)
To: Babu Moger, Moger, Babu, corbet@lwn.net, tony.luck@intel.com,
Dave.Martin@arm.com, james.morse@arm.com, tglx@kernel.org,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com
Cc: skhan@linuxfoundation.org, x86@kernel.org, hpa@zytor.com,
peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
vschneid@redhat.com, kas@kernel.org, rick.p.edgecombe@intel.com,
akpm@linux-foundation.org, pmladek@suse.com,
rdunlap@infradead.org, dapeng1.mi@linux.intel.com,
kees@kernel.org, elver@google.com, paulmck@kernel.org,
lirongqing@baidu.com, safinaskar@gmail.com, fvdl@google.com,
seanjc@google.com, pawan.kumar.gupta@linux.intel.com,
xin@zytor.com, tiala@microsoft.com, chang.seok.bae@intel.com,
Lendacky, Thomas, elena.reshetova@intel.com,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-coco@lists.linux.dev, kvm@vger.kernel.org,
eranian@google.com, peternewman@google.com
In-Reply-To: <d693f797-65f6-46ed-bd49-beaeee2da858@amd.com>
Hi Babu,
On 4/21/26 11:19 AM, Babu Moger wrote:
> On 4/21/26 12:35, Reinette Chatre wrote:
>> On 4/21/26 9:46 AM, Babu Moger wrote:
>>> On 4/21/26 11:15, Reinette Chatre wrote:
>>>> On 4/21/26 8:08 AM, Babu Moger wrote:
>>>>>
>>>>> # echo "global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/
>>>>>
>>>>> Why do we still need to keep the "inherit_ctrl_and_mon"? By default all the groups in the system falls in this category it is not plza enabled group.
Here you question why "inherit_ctrl_and_mon" is needed ...
>>>>>
>>>>>
>>>>> System boots up with following options if PLZA is supported.
>>>>>
>>>>> # cat info/kernel_mode
>>>>> global_assign_ctrl_assign_mon_per_cpu
>>>>> global_assign_ctrl_inherit_mon_per_cpu
>>>>>
>>>>> No groups are associated with kernel mode at this point.
>>>>
>>>> To me it seems useful to be clear to user space on what the current mode is. If I understand correctly
>>>> above default scenario essentially means "inherit_ctrl_and_mon" but instead of adding it to this file
>>>> we will need to add documentation that describes to user space how this file should be interpreted.
>>>> It seems easier to me to just be clear via info/kernel_mode itself on what the current active mode is?
>>>>
>>>> I think something like below will be more intuitive and not need much additional
>>>> documentation to understand (I am just adding the "uninitialized" as an example to match text
>>>> printed in schemata file during pseudo-locking ... even if there is a group named "uninitialized"
>>>> the lack of "/" could be used to make it clear what this means?):
>>>>
>>>> # cat info/kernel_mode
>>>> [inherit_ctrl_and_mon]
>>>> global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
>>>> global_assign_ctrl_inherit_mon_per_cpu:group=uninitialized
>>>>
Above I share considerations when thinking whether to keep "inherit_ctrl_and_mon" or not ...
>>>
>>> Sounds ok to me.
... to which you seem to agree ...
>>>
>>>
>>>> I also think an interface like this would be simpler for user space to use as it (user space) switches
>>>> between PLZA capable and non-PLZA capable systems since user space need not associate existence of
>>>> the file with some kernel mode state in addition to actual content of the file when it does exist.
... more considerations from me when thinking whether to keep "inherit_ctrl_and_mon" or not ...
>>>>
>>>> I assumed that info/kernel_mode can just always be made visible and not depend on PLZA
>>>> capable hardware. This means that on Intel and Arm this file can show:
>>>>
>>>> # cat info/kernel_mode
>>>> [inherit_ctrl_and_mon]
>>>>
>>>
>>> Yes. Sure.
... to which you seem to agree ...
>>>
>>>
>>>> For Intel this is accurate and also for Arm if I interpret the Arm implementation correctly
>>>> (see mpam_thread_switch()) in https://lore.kernel.org/lkml/20260313144617.3420416-7-ben.horgan@arm.com/
... and even more considerations from me when thinking whether to keep "inherit_ctrl_and_mon" or not.
...
>>> There is one problem here. The mode "inherit_ctrl_and_mon" listing not consistent with others.
>>
>> It is difficult to predict what resctrl will be asked to support next. One possibility here is
>> to make it part of the original design that the first field is the "mode" and the following field
>> contains that mode's global properties of which there could be more than one. Above shows that
>> the two "global" modes have a single global property but we could just try to be safe with some
>> documentation that states there could be more.
>>
>> Consider for example some hypothetical future where the file looks like:
>>
>> # cat info/kernel_mode
>> inherit_ctrl_and_mon:some_unique_capability=true
>> global_assign_ctrl_assign_mon_per_cpu:group=uninitialized;other_property=val
>> [global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/]
>>
>> To leave room for growth the file could start out by, for example, appending ":"
>> to "inherit_ctrl_and_mon" to indicate that there are no known properties yet? Something like
>> below. Would this be more consistent with the others?
>
> To me, it might be clearer to simply document what the default mode is when kernel mode is not enabled, and omit "inherit_ctrl_and_mon" from the display.
... and now you question again why "inherit_ctrl_and_mon" should be included in display without
a motivation why and without addressing any of the previous considerations motivating its
inclusion. How can I respond when you clearly ignore my response to the previous time you asked
this question?
My previous comments are still valid. You mention that "it might be clearer to simply document what
the default mode is when kernel mode is not enabled". To me there is not really a "disabled" kernel mode
since kernel work done on behalf of a task needs to be done with *some* allocation - kernel mode is not
"disabled". Why should resctrl not make it clear what this behavior is? Adding another consideration to
the list ... what if resctrl needs to support some other "default" mode in the future? How can a user
know that not having an active mode means one or the other "default" mode?
If you feel that "inherit_ctrl_and_mon" should be omitted then please motivate why and also address why
the considerations I mentioned are not valid.
Reinette
^ permalink raw reply
* Re: [PATCH net 12/18] drivers: net: cirrus: mac89x0: Remove this driver
From: Daniel Palmer @ 2026-04-21 21:34 UTC (permalink / raw)
To: Andrew Lunn
Cc: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Simon Horman, Jonathan Corbet, Shuah Khan,
linux-kernel, netdev, linux-doc
In-Reply-To: <20260421-v7-0-0-net-next-driver-removal-v1-v1-12-69517c689d1f@lunn.ch>
Hi Andrew,
On Wed, 22 Apr 2026 at 05:01, Andrew Lunn <andrew@lunn.ch> wrote:
>
> The mac89x0 was written by Russell Nelson in 1996. It is an MAC
> device, so unlikely to be used with modern kernels.
>
> Signed-off-by: Andrew Lunn <andrew@lunn.ch>
I think I might be using this with a mac and I'm running mainline.
FWIW the m68k mac stuff still works perfectly fine with modern kernels
and there are people using it.
^ permalink raw reply
* Re: [PATCH net 06/18] drivers: net: amd: Remove hplance and mvme147
From: Daniel Palmer @ 2026-04-21 21:38 UTC (permalink / raw)
To: Andrew Lunn
Cc: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Simon Horman, Jonathan Corbet, Shuah Khan,
linux-kernel, netdev, linux-doc
In-Reply-To: <20260421-v7-0-0-net-next-driver-removal-v1-v1-6-69517c689d1f@lunn.ch>
Hi Andrew,
On Wed, 22 Apr 2026 at 04:39, Andrew Lunn <andrew@lunn.ch> wrote:
>
> These drivers use the 7990 core with wrappers for the HP300 and
> Motorola MVME147 SBC circa 1998. It is unlikely they are used with a
> modern kernel.
I have an MVME147 blinking away running mainline using the mvme147 driver.
I think some of these need to be CC'd to the specific arch lists so
the few people using them get a chance to pipe up.
I think I'm the last person to have touched the mvme147, I don't mind
being a maintainer for it.
Cheers,
Daniel
^ permalink raw reply
* Re: [PATCH v11 02/20] gpu: nova-core: gsp: Extract usable FB region from GSP
From: John Hubbard @ 2026-04-21 21:41 UTC (permalink / raw)
To: David Airlie, Joel Fernandes
Cc: linux-kernel, Miguel Ojeda, Boqun Feng, Gary Guo, Bjorn Roy Baron,
Benno Lossin, Andreas Hindborg, Alice Ryhl, Trevor Gross,
Danilo Krummrich, Daniel Almeida, Koen Koning, dri-devel,
rust-for-linux, Nikola Djukic, Maarten Lankhorst, Maxime Ripard,
Thomas Zimmermann, David Airlie, Simona Vetter, Jonathan Corbet,
Alex Deucher, Christian Koenig, Jani Nikula, Joonas Lahtinen,
Rodrigo Vivi, Tvrtko Ursulin, Huang Rui, Matthew Auld,
Lucas De Marchi, Thomas Hellstrom, Helge Deller, Alex Gaynor,
Boqun Feng, Alistair Popple, Timur Tabi, Edwin Peer,
Alexandre Courbot, Andrea Righi, Andy Ritger, Zhi Wang,
Balbir Singh, Philipp Stanner, Elle Rhumsaa, alexeyi,
Eliot Courtney, joel, linux-doc, amd-gfx, intel-gfx, intel-xe,
linux-fbdev
In-Reply-To: <CAMwc25o2qmaYnfsh-cW4M4PEbmpYb_1x4qg1_2155P0orzCnOQ@mail.gmail.com>
On 4/21/26 1:05 PM, David Airlie wrote:
...
>>>> + usable_fb_region: msg.first_usable_fb_region().ok_or(ENODEV)?,
>>>
>>> OK, failing out is correct here. But in addition, we should also
>>> log this at dev_err!() level. This is rare, surprising, and actionable,
>>> so perfect for that level of logging.
>>
>> Sure, that works for me. Will add it in for v12.
>
> Just fyi when we get to spark later this will not matter, we will have
> no usable_fb_region, though maybe it could just return 0s in that
> case.
>
Hi Dave,
The "no FB on this SKU" is a separate case, at least as I recall from
specifically looking into that during the patch review. We already have
cases like that (in Open RM) and those are not error cases.
This one here is a real error, though: "expected an FB and got nothing
useful".
thanks,
--
John Hubbard
^ permalink raw reply
* Re: [GIT PULL] DAX for 7.1
From: pr-tracker-bot @ 2026-04-21 21:56 UTC (permalink / raw)
To: Ira Weiny
Cc: Linus Torvalds, John Groves, Dan Williams, Alison Schofield,
John Groves, Dave Jiang, Jonathan Cameron, linux-doc,
linux-kernel, nvdimm, linux-cxl, linux-fsdevel
In-Reply-To: <69e7d1949ebcc_7d12a10098@iweiny-mobl.notmuch>
The pull request you sent on Tue, 21 Apr 2026 14:35:48 -0500:
> git@gitolite.kernel.org:pub/scm/linux/kernel/git/nvdimm/nvdimm.git tags/libnvdimm-for-7.1
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/bb0bc49a1cef574646eb25d74709c5ff200903a8
Thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/prtracker.html
^ permalink raw reply
* Re: [PATCH net 00/18] Remove a number of ISA and PCMCIA Ethernet drivers
From: Daniel Palmer @ 2026-04-21 22:03 UTC (permalink / raw)
To: Andrew Lunn
Cc: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Simon Horman, Jonathan Corbet, Shuah Khan,
linux-kernel, netdev, linux-doc
In-Reply-To: <20260421-v7-0-0-net-next-driver-removal-v1-v1-0-69517c689d1f@lunn.ch>
Hi Andrew,
On Wed, 22 Apr 2026 at 04:32, Andrew Lunn <andrew@lunn.ch> wrote:
>
> These old drivers have not been much of a Maintenance burden until
> recently. Now there are more newbies using AI and fuzzers finding
> issues, resulting in more work for Maintainers. Fixing these old
> drivers make little sense, if it is not clear they have users.
>
> These are all ISA and PCMCIA Ethernet devices, mostly from the last
> century, a couple from 2001 or 2002. It seems unlikely they are still
> used. However, remove them one patch at a time so they can be brought
> back if somebody still has the hardware, runs modern kernels and wants
> to take up the roll of driver Maintainer.
>
> Signed-off-by: Andrew Lunn <andrew@lunn.ch>
I replied to the single patches for the ones I think I have off the
top of my head but maybe I have a few other these.
I think on x86 people running machines that have real ISA slots and a
modern kernel are going to be fairly rare but I think there is non-x86
hardware that has some of these and people are still using them.
I think the pcnet one is used in some PC emulators too?
This is just my opinion but I think it'd be good to give people a bit
more time before they get removed. I thought I was the only person
using the 68000 (a cpu from 1979) code in the m68k tree for years
until out of the blue a month or so ago someone popped up and asked if
I could fix a bug in it since I'd fixed a different bug in it
recently.
Maybe we could add a special thing in the maintainers for "this is
code only crazy people use" and have a rule to ignore untested AI
generated patches for it? :)
Thanks,
Daniel
^ permalink raw reply
* Re: [PATCH v2 00/16] fs,x86/resctrl: Add kernel-mode (e.g., PLZA) support to the resctrl subsystem
From: Moger, Babu @ 2026-04-21 22:04 UTC (permalink / raw)
To: Reinette Chatre, Babu Moger, corbet@lwn.net, tony.luck@intel.com,
Dave.Martin@arm.com, james.morse@arm.com, tglx@kernel.org,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com
Cc: skhan@linuxfoundation.org, x86@kernel.org, hpa@zytor.com,
peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
vschneid@redhat.com, kas@kernel.org, rick.p.edgecombe@intel.com,
akpm@linux-foundation.org, pmladek@suse.com,
rdunlap@infradead.org, dapeng1.mi@linux.intel.com,
kees@kernel.org, elver@google.com, paulmck@kernel.org,
lirongqing@baidu.com, safinaskar@gmail.com, fvdl@google.com,
seanjc@google.com, pawan.kumar.gupta@linux.intel.com,
xin@zytor.com, tiala@microsoft.com, chang.seok.bae@intel.com,
Lendacky, Thomas, elena.reshetova@intel.com,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-coco@lists.linux.dev, kvm@vger.kernel.org,
eranian@google.com, peternewman@google.com
In-Reply-To: <c9e10de7-f5b1-4a38-be1f-f75bc1ae7780@intel.com>
Hi Reinette,
On 4/21/2026 3:57 PM, Reinette Chatre wrote:
> Hi Babu,
>
> On 4/21/26 11:19 AM, Babu Moger wrote:
>> On 4/21/26 12:35, Reinette Chatre wrote:
>>> On 4/21/26 9:46 AM, Babu Moger wrote:
>>>> On 4/21/26 11:15, Reinette Chatre wrote:
>>>>> On 4/21/26 8:08 AM, Babu Moger wrote:
>
>
>>>>>>
>>>>>> # echo "global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/
>>>>>>
>>>>>> Why do we still need to keep the "inherit_ctrl_and_mon"? By default all the groups in the system falls in this category it is not plza enabled group.
>
> Here you question why "inherit_ctrl_and_mon" is needed ...
>
>>>>>>
>>>>>>
>>>>>> System boots up with following options if PLZA is supported.
>>>>>>
>>>>>> # cat info/kernel_mode
>>>>>> global_assign_ctrl_assign_mon_per_cpu
>>>>>> global_assign_ctrl_inherit_mon_per_cpu
>>>>>>
>>>>>> No groups are associated with kernel mode at this point.
>>>>>
>>>>> To me it seems useful to be clear to user space on what the current mode is. If I understand correctly
>>>>> above default scenario essentially means "inherit_ctrl_and_mon" but instead of adding it to this file
>>>>> we will need to add documentation that describes to user space how this file should be interpreted.
>>>>> It seems easier to me to just be clear via info/kernel_mode itself on what the current active mode is?
>>>>>
>>>>> I think something like below will be more intuitive and not need much additional
>>>>> documentation to understand (I am just adding the "uninitialized" as an example to match text
>>>>> printed in schemata file during pseudo-locking ... even if there is a group named "uninitialized"
>>>>> the lack of "/" could be used to make it clear what this means?):
>>>>>
>>>>> # cat info/kernel_mode
>>>>> [inherit_ctrl_and_mon]
>>>>> global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
>>>>> global_assign_ctrl_inherit_mon_per_cpu:group=uninitialized
>>>>>
>
> Above I share considerations when thinking whether to keep "inherit_ctrl_and_mon" or not ...
>
>>>>
>>>> Sounds ok to me.
>
> ... to which you seem to agree ...
>
>>>>
>>>>
>>>>> I also think an interface like this would be simpler for user space to use as it (user space) switches
>>>>> between PLZA capable and non-PLZA capable systems since user space need not associate existence of
>>>>> the file with some kernel mode state in addition to actual content of the file when it does exist.
>
>
> ... more considerations from me when thinking whether to keep "inherit_ctrl_and_mon" or not ...
My bad. My only motivation was to keep the mode listing display consistent.
That said, I agree we need to support this. Without it, we won’t be able
to move the group from PLZA to non-PLZA.
# cat info/kernel_mode
inherit_ctrl_and_mon:
global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
[global_assign_ctrl_assign_mon_per_cpu]:group=ctrl1/mon1/
# echo "inherit_ctrl_and_mon:group=ctrl1/mon1/" > info/kernel_mode
# cat info/kernel_mode
inherit_ctrl_and_mon:
global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
[global_assign_ctrl_assign_mon_per_cpu]:group=uninitialized
Thanks
Babu
^ permalink raw reply
* Re: [PATCH V10 00/10] famfs: port into fuse
From: Gregory Price @ 2026-04-21 22:13 UTC (permalink / raw)
To: Joanne Koong
Cc: John Groves, David Hildenbrand (Arm), Darrick J. Wong,
Miklos Szeredi, Bernd Schubert, John Groves, Dan Williams,
Bernd Schubert, Alison Schofield, John Groves, Jonathan Corbet,
Shuah Khan, Vishal Verma, Dave Jiang, Matthew Wilcox, Jan Kara,
Alexander Viro, Christian Brauner, Randy Dunlap, Jeff Layton,
Amir Goldstein, Jonathan Cameron, Stefan Hajnoczi, Josef Bacik,
Bagas Sanjaya, Chen Linxuan, James Morse, Fuad Tabba,
Sean Christopherson, Shivank Garg, Ackerley Tng, Aravind Ramesh,
Ajay Joshi, venkataravis@micron.com, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, nvdimm@lists.linux.dev,
linux-cxl@vger.kernel.org, linux-fsdevel@vger.kernel.org, djbw
In-Reply-To: <CAJnrk1Zd2RFE=z=sPRCHaBdqK40+23Vv_owS=7OfxYF1TtPomg@mail.gmail.com>
On Tue, Apr 21, 2026 at 11:59:15AM -0700, Joanne Koong wrote:
> On Tue, Apr 21, 2026 at 7:30 AM Gregory Price <gourry@gourry.net> wrote:
>
> I'm not sure if this addresses Christian's concerns or not, but the
> blob would reside within struct fuse_inode not struct inode. I
> definitely agree with him that this should not touch or add any infra
> outside fuse.
>
> I hadn't heard of bpf arenas until his comment. If the hashmap
> overhead is too high for famfs, having a custom in-arena hash table
> would be much faster I think, as it could be designed to require less
> pointer chasing and avoid other overhead in the bpf hashmap
> implementation, though now famfs would have to manage the data
> structure and complexity itself.
>
I think if the fuse-inode blob is acceptable, that's highly preferable -
and it wouldn't necessarily need to stay specific to bpf. If there was
some generic format that folks agreed on as a baseline, that could
obviously be worked into the interface.
~Gregory
^ permalink raw reply
* Re: [PATCH net 00/18] Remove a number of ISA and PCMCIA Ethernet drivers
From: Andrew Lunn @ 2026-04-21 22:30 UTC (permalink / raw)
To: Byron Stanoszek
Cc: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Simon Horman, Jonathan Corbet, Shuah Khan,
linux-kernel, netdev, linux-doc
In-Reply-To: <71d319ef-cd49-e8a8-70dd-cf0763ac6305@winds.org>
On Tue, Apr 21, 2026 at 04:44:11PM -0400, Byron Stanoszek wrote:
> On Tue, 21 Apr 2026, Andrew Lunn wrote:
>
> > These old drivers have not been much of a Maintenance burden until
> > recently. Now there are more newbies using AI and fuzzers finding
> > issues, resulting in more work for Maintainers. Fixing these old
> > drivers make little sense, if it is not clear they have users.
> >
> > drivers: net: 3com: 3c59x: Remove this driver
>
> Hi Andrew,
>
> I happen to still use this driver on several hundred industrial PC
> installations that were outfitted with 3com 3C905-B & CX cards 15+ years ago.
> The old hardware still runs, therefore those cards haven't needed to be
> replaced. I keep these systems up to date with the latest Linux kernel roughly
> once per year.
So 6.18? 6.12?
> I understand the maintenance burden, but I would be delighted to continue
> receiving bug fixes for this driver via the mainline Linux kernel if you are
> still willing to continue to support it.
Looking at the history of 3c59x.c i see:
Date: Tue Jan 6 10:47:21 2026 +0100
net: 3com: 3c59x: fix possible null dereference in vortex_probe1()
Date: Wed Jan 3 13:09:23 2018 -0500
3c59x: fix missing dma_mapping_error check and bad ring refill logic
Date: Thu Feb 25 13:02:50 2016 -0500
3c59x: mask LAST_FRAG bit from length field in ring
Date: Sun Feb 28 16:49:29 2016 +0900
3c59x: Ensure to apply the expires time
Date: Wed Jan 13 12:43:54 2016 -0500
3c59x: fix another page map/single unmap imbalance
Date: Wed Jan 13 12:43:53 2016 -0500
3c59x: balance page maps and unmaps
Date: Tue Jul 7 20:48:55 2015 +0200
3c59x: Fix shared IRQ handling
So it looks like it was been pretty stable since 2016.
Could you live with v6.18, which has an expected EOL of December 2028?
If you are only updating once per year, security is not an issue, you
just want stability.
In fact, you might actually find stability starts going down in the
next couple of years, maybe sooner. What we expect to happen soon is a
lot more AI generated 'bug fixes', probably from newbies who are
unable to evaluate if the AI is generated good fixes or bad fixes, or
fixes which are theoretical rather than actual bugs etc. We netdev
Maintainers are already seeing the number of patches going up, and are
expecting to get overloaded. Which means quality will go down. We have
also seen the AI generated fixes are indiscriminate, neither the AI,
nor the human, care, or even look, to see if the driver is from the
last century. We Maintainers however would prefer spending our time on
drivers from the last ten years, maybe newer. So patches for these
older drivers is going to get less review, and bad patches will slip
through.
By dropping them for the current HEAD, we are reducing our surface
area. It will be interesting to see if the AI patches are only for
HEAD, or they start going back to older kernels to find 'bugs'.
However, just because a driver has gone from HEAD, it does not really
prevent us from taking patches for stable. But we Maintainers want to
avoid doing the triage work, figuring out good from bad.
We have not discussed it as a Maintainer team, but one thing which
might work is we add a entry for 3c59x.c in MAINTAINERS, in stable,
pointing to you. You can then validate patches, and tell us if they
are O.K. to queue for stable.
Andrew
^ permalink raw reply
* Re: [PATCH v2 00/16] fs,x86/resctrl: Add kernel-mode (e.g., PLZA) support to the resctrl subsystem
From: Reinette Chatre @ 2026-04-21 22:44 UTC (permalink / raw)
To: Moger, Babu, Babu Moger, corbet@lwn.net, tony.luck@intel.com,
Dave.Martin@arm.com, james.morse@arm.com, tglx@kernel.org,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com
Cc: skhan@linuxfoundation.org, x86@kernel.org, hpa@zytor.com,
peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
vschneid@redhat.com, kas@kernel.org, rick.p.edgecombe@intel.com,
akpm@linux-foundation.org, pmladek@suse.com,
rdunlap@infradead.org, dapeng1.mi@linux.intel.com,
kees@kernel.org, elver@google.com, paulmck@kernel.org,
lirongqing@baidu.com, safinaskar@gmail.com, fvdl@google.com,
seanjc@google.com, pawan.kumar.gupta@linux.intel.com,
xin@zytor.com, tiala@microsoft.com, chang.seok.bae@intel.com,
Lendacky, Thomas, elena.reshetova@intel.com,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-coco@lists.linux.dev, kvm@vger.kernel.org,
eranian@google.com, peternewman@google.com
In-Reply-To: <9d8a18da-14e4-4d90-a224-7d69d4daeb13@amd.com>
Hi Babu,
On 4/21/26 3:04 PM, Moger, Babu wrote:
> My bad. My only motivation was to keep the mode listing display consistent.
The listing display is already inconsistent since the different modes have different
global properties, no?
>
> That said, I agree we need to support this. Without it, we won’t be able to move the group from PLZA to non-PLZA.
>
> # cat info/kernel_mode
> inherit_ctrl_and_mon:
> global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
> [global_assign_ctrl_assign_mon_per_cpu]:group=ctrl1/mon1/
Like above where the listing is inconsistent. Is this what you mean?
sidenote: Should the last line be "[global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/]"?
>
> # echo "inherit_ctrl_and_mon:group=ctrl1/mon1/" > info/kernel_mode
This does not look right. Why is a "group" property needed here? Can the mode not just
be set by itself? Specifically, why not just:
# echo "inherit_ctrl_and_mon" > info/kernel_mode
This reminds me that there is still an open remaining from
https://lore.kernel.org/lkml/71099958-1ddf-40dc-8a3c-aa13d0c56fee@intel.com/
Specifically this from that message:
The named fields could be made optional, if group is omitted then it will become the
default resource group, and if cpus/cpus_list is omitted then it will default to all CPUs.
This may not be intuitive since a user may expect that not mentioning a field means
that the field is left untouched. Have you considered this scenario in your proposal?
I think this needs some clear description of behavior wrt properties, for example:
- Is it required to provide all properties on each write? More specifically, can user expect there
to be "default" values when a property is not provided or is user required to provide a value
for each property? We need to be careful here because we do not want user scripts to fail when a new
property is added in the future. What if resctrl specifies that if user space does not provide
a property then resctrl will pick a default. For example, if user runs:
# echo "global_assign_ctrl_assign_mon_per_cpu" > info/kernel_mode
then resctrl will switch to "global_assign_ctrl_assign_mon_per_cpu" mode initialized to
the default group.
I am not sure if resctrl needs to support re-configuration of modes in the future where the
mode stays the same but a property changes? Consider, for example,
# cat info/kernel_mode
[inherit_ctrl_and_mon:]
global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
# echo "global_assign_ctrl_assign_mon_per_cpu" > info/kernel_mode
/*
* resctrl switches to "global_assign_ctrl_assign_mon_per_cpu" mode and sets
* PLZA group to default group
*/
# cat info/kernel_mode
inherit_ctrl_and_mon:
[global_assign_ctrl_assign_mon_per_cpu:group=//]
# echo "global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/" > info/kernel_mode
/*
* resctrl stays in "global_assign_ctrl_assign_mon_per_cpu" mode and sets
* PLZA group to default group
*/
# cat info/kernel_mode
inherit_ctrl_and_mon:
[global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/]
# echo "global_assign_ctrl_assign_mon_per_cpu" > info/kernel_mode
/*
* TBD: should resctrl switch back to default group or just keep
* group as ctrl1/mon1/ ?
*/
resctrl could thus specify different behavior for switching to a mode where all properties
not specified obtains default values and re-configuring a mode where only specified
properties are changed. That means, the "TBD" above would be that the group stays
as ctrl1/mon1/. So,
# cat info/kernel_mode
inherit_ctrl_and_mon:
[global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/]
What do you think?
> # cat info/kernel_mode
> inherit_ctrl_and_mon:
> global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
> [global_assign_ctrl_assign_mon_per_cpu]:group=uninitialized
This does not look right. After switching the kernel_mode to inherit_ctrl_and_mon
I expect inherit_ctrl_and_mon to be the active mode?
Reinette
^ permalink raw reply
* Re: [PATCH v2 00/16] fs,x86/resctrl: Add kernel-mode (e.g., PLZA) support to the resctrl subsystem
From: Moger, Babu @ 2026-04-22 0:17 UTC (permalink / raw)
To: Reinette Chatre, Babu Moger, corbet@lwn.net, tony.luck@intel.com,
Dave.Martin@arm.com, james.morse@arm.com, tglx@kernel.org,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com
Cc: skhan@linuxfoundation.org, x86@kernel.org, hpa@zytor.com,
peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
vschneid@redhat.com, kas@kernel.org, rick.p.edgecombe@intel.com,
akpm@linux-foundation.org, pmladek@suse.com,
rdunlap@infradead.org, dapeng1.mi@linux.intel.com,
kees@kernel.org, elver@google.com, paulmck@kernel.org,
lirongqing@baidu.com, safinaskar@gmail.com, fvdl@google.com,
seanjc@google.com, pawan.kumar.gupta@linux.intel.com,
xin@zytor.com, tiala@microsoft.com, chang.seok.bae@intel.com,
Lendacky, Thomas, elena.reshetova@intel.com,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-coco@lists.linux.dev, kvm@vger.kernel.org,
eranian@google.com, peternewman@google.com
In-Reply-To: <de608041-bc45-4ca0-81fe-423a5167d7d0@intel.com>
Hi Reinette,
On 4/21/2026 5:44 PM, Reinette Chatre wrote:
> Hi Babu,
>
> On 4/21/26 3:04 PM, Moger, Babu wrote:
>> My bad. My only motivation was to keep the mode listing display consistent.
>
> The listing display is already inconsistent since the different modes have different
> global properties, no?
>
Yes. That is true.
>>
>> That said, I agree we need to support this. Without it, we won’t be able to move the group from PLZA to non-PLZA.
>>
>> # cat info/kernel_mode
>> inherit_ctrl_and_mon:
>> global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
>> [global_assign_ctrl_assign_mon_per_cpu]:group=ctrl1/mon1/
>
> Like above where the listing is inconsistent. Is this what you mean?
I meant the listing of "inherit_ctrl_and_mon" does not have groups while
other modes have it.
>
> sidenote: Should the last line be "[global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/]"?
Yes.
>
>>
>> # echo "inherit_ctrl_and_mon:group=ctrl1/mon1/" > info/kernel_mode
>
> This does not look right. Why is a "group" property needed here? Can the mode not just
> be set by itself? Specifically, why not just:
>
> # echo "inherit_ctrl_and_mon" > info/kernel_mode
We can go with this based on your another comment below. While changing
the mode use the defaults if properties are not provided.
>
> This reminds me that there is still an open remaining from
> https://lore.kernel.org/lkml/71099958-1ddf-40dc-8a3c-aa13d0c56fee@intel.com/
> Specifically this from that message:
> The named fields could be made optional, if group is omitted then it will become the
> default resource group, and if cpus/cpus_list is omitted then it will default to all CPUs.
> This may not be intuitive since a user may expect that not mentioning a field means
> that the field is left untouched. Have you considered this scenario in your proposal?
>
> I think this needs some clear description of behavior wrt properties, for example:
> - Is it required to provide all properties on each write? More specifically, can user expect there
> to be "default" values when a property is not provided or is user required to provide a value
> for each property? We need to be careful here because we do not want user scripts to fail when a new
> property is added in the future. What if resctrl specifies that if user space does not provide
> a property then resctrl will pick a default. For example, if user runs:
> # echo "global_assign_ctrl_assign_mon_per_cpu" > info/kernel_mode
> then resctrl will switch to "global_assign_ctrl_assign_mon_per_cpu" mode initialized to
> the default group.
> I am not sure if resctrl needs to support re-configuration of modes in the future where the
> mode stays the same but a property changes? Consider, for example,
>
> # cat info/kernel_mode
> [inherit_ctrl_and_mon:]
> global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
>
> # echo "global_assign_ctrl_assign_mon_per_cpu" > info/kernel_mode
> /*
> * resctrl switches to "global_assign_ctrl_assign_mon_per_cpu" mode and sets
> * PLZA group to default group
> */
> # cat info/kernel_mode
> inherit_ctrl_and_mon:
> [global_assign_ctrl_assign_mon_per_cpu:group=//]
> # echo "global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/" > info/kernel_mode
> /*
> * resctrl stays in "global_assign_ctrl_assign_mon_per_cpu" mode and sets
> * PLZA group to default group
> */
I think you meant "PLZA group to ctrl1/mon1/" here.
> # cat info/kernel_mode
> inherit_ctrl_and_mon:
> [global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/]
> # echo "global_assign_ctrl_assign_mon_per_cpu" > info/kernel_mode
> /*
> * TBD: should resctrl switch back to default group or just keep
> * group as ctrl1/mon1/ ?
> */
>
> resctrl could thus specify different behavior for switching to a mode where all properties
> not specified obtains default values and re-configuring a mode where only specified
> properties are changed. That means, the "TBD" above would be that the group stays
> as ctrl1/mon1/. So,
> # cat info/kernel_mode
> inherit_ctrl_and_mon:
> [global_assign_ctrl_assign_mon_per_cpu:group=ctrl1/mon1/]
>
> What do you think?
Yes. Sure. We can do that. We only have 2 properties now (mode and
group). We should be able to handle that.
>
>> # cat info/kernel_mode
>> inherit_ctrl_and_mon:
>> global_assign_ctrl_assign_mon_per_cpu:group=uninitialized
>> [global_assign_ctrl_assign_mon_per_cpu]:group=uninitialized
> This does not look right. After switching the kernel_mode to inherit_ctrl_and_mon
> I expect inherit_ctrl_and_mon to be the active mode?
Yes. inherit_ctrl_and_mon should be active here.
Thanks
Babu
^ permalink raw reply
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