* [PATCH 3/3] MIPS: TXX9: Remove TX4939 SoC support
[not found] <20211130164558.85584-1-tsbogend@alpha.franken.de>
@ 2021-11-30 16:45 ` Thomas Bogendoerfer
2021-12-01 13:06 ` Geert Uytterhoeven
2022-01-02 13:27 ` Thomas Bogendoerfer
0 siblings, 2 replies; 3+ messages in thread
From: Thomas Bogendoerfer @ 2021-11-30 16:45 UTC (permalink / raw)
To: linux-mips, linux-kernel, Matt Mackall, Herbert Xu, Miquel Raynal,
Richard Weinberger, Vignesh Raghavendra, linux-crypto, linux-mtd
Cc: geert
After removal of RBTX4939 board support remove code for the TX4939 SoC.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
arch/mips/pci/Makefile | 1 -
arch/mips/pci/pci-tx4939.c | 107 -----
arch/mips/txx9/Kconfig | 8 -
arch/mips/txx9/generic/Makefile | 1 -
arch/mips/txx9/generic/irq_tx4939.c | 216 ----------
arch/mips/txx9/generic/setup_tx4939.c | 568 --------------------------
drivers/char/hw_random/Kconfig | 13 -
drivers/char/hw_random/Makefile | 1 -
drivers/char/hw_random/tx4939-rng.c | 157 -------
drivers/mtd/nand/raw/Kconfig | 2 +-
10 files changed, 1 insertion(+), 1073 deletions(-)
delete mode 100644 arch/mips/pci/pci-tx4939.c
delete mode 100644 arch/mips/txx9/generic/irq_tx4939.c
delete mode 100644 arch/mips/txx9/generic/setup_tx4939.c
delete mode 100644 drivers/char/hw_random/tx4939-rng.c
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile
index bf18db3026c0..9a6bc702608c 100644
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -49,7 +49,6 @@ obj-$(CONFIG_TANBAC_TB0287) += fixup-tb0287.o
obj-$(CONFIG_TOSHIBA_JMR3927) += fixup-jmr3927.o
obj-$(CONFIG_SOC_TX4927) += pci-tx4927.o
obj-$(CONFIG_SOC_TX4938) += pci-tx4938.o
-obj-$(CONFIG_SOC_TX4939) += pci-tx4939.o
obj-$(CONFIG_TOSHIBA_RBTX4927) += fixup-rbtx4927.o
obj-$(CONFIG_VICTOR_MPC30X) += fixup-mpc30x.o
obj-$(CONFIG_ZAO_CAPCELLA) += fixup-capcella.o
diff --git a/arch/mips/pci/pci-tx4939.c b/arch/mips/pci/pci-tx4939.c
deleted file mode 100644
index 09a65f7dbe7c..000000000000
--- a/arch/mips/pci/pci-tx4939.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Based on linux/arch/mips/txx9/rbtx4939/setup.c,
- * and RBTX49xx patch from CELF patch archive.
- *
- * Copyright 2001, 2003-2005 MontaVista Software Inc.
- * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
- * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <asm/txx9/generic.h>
-#include <asm/txx9/tx4939.h>
-
-int __init tx4939_report_pciclk(void)
-{
- int pciclk = 0;
-
- pr_info("PCIC --%s PCICLK:",
- (__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCI66) ?
- " PCI66" : "");
- if (__raw_readq(&tx4939_ccfgptr->pcfg) & TX4939_PCFG_PCICLKEN_ALL) {
- pciclk = txx9_master_clock * 20 / 6;
- if (!(__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCI66))
- pciclk /= 2;
- pr_cont("Internal(%u.%uMHz)",
- (pciclk + 50000) / 1000000,
- ((pciclk + 50000) / 100000) % 10);
- } else {
- pr_cont("External");
- pciclk = -1;
- }
- pr_cont("\n");
- return pciclk;
-}
-
-void __init tx4939_report_pci1clk(void)
-{
- unsigned int pciclk = txx9_master_clock * 20 / 6;
-
- pr_info("PCIC1 -- PCICLK:%u.%uMHz\n",
- (pciclk + 50000) / 1000000,
- ((pciclk + 50000) / 100000) % 10);
-}
-
-int tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
-{
- if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4939_pcic1ptr) {
- switch (slot) {
- case TX4927_PCIC_IDSEL_AD_TO_SLOT(31):
- if (__raw_readq(&tx4939_ccfgptr->pcfg) &
- TX4939_PCFG_ET0MODE)
- return TXX9_IRQ_BASE + TX4939_IR_ETH(0);
- break;
- case TX4927_PCIC_IDSEL_AD_TO_SLOT(30):
- if (__raw_readq(&tx4939_ccfgptr->pcfg) &
- TX4939_PCFG_ET1MODE)
- return TXX9_IRQ_BASE + TX4939_IR_ETH(1);
- break;
- }
- return 0;
- }
- return -1;
-}
-
-int tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
- int irq = tx4939_pcic1_map_irq(dev, slot);
-
- if (irq >= 0)
- return irq;
- irq = pin;
- /* IRQ rotation */
- irq--; /* 0-3 */
- irq = (irq + 33 - slot) % 4;
- irq++; /* 1-4 */
-
- switch (irq) {
- case 1:
- irq = TXX9_IRQ_BASE + TX4939_IR_INTA;
- break;
- case 2:
- irq = TXX9_IRQ_BASE + TX4939_IR_INTB;
- break;
- case 3:
- irq = TXX9_IRQ_BASE + TX4939_IR_INTC;
- break;
- case 4:
- irq = TXX9_IRQ_BASE + TX4939_IR_INTD;
- break;
- }
- return irq;
-}
-
-void __init tx4939_setup_pcierr_irq(void)
-{
- if (request_irq(TXX9_IRQ_BASE + TX4939_IR_PCIERR,
- tx4927_pcierr_interrupt,
- 0, "PCI error",
- (void *)TX4939_PCIC_REG))
- pr_warn("Failed to request irq for PCIERR\n");
-}
diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig
index 9e5e33a09cf9..54b4e43053d7 100644
--- a/arch/mips/txx9/Kconfig
+++ b/arch/mips/txx9/Kconfig
@@ -67,14 +67,6 @@ config SOC_TX4938
select GPIO_TXX9
imply HAS_TXX9_ACLC
-config SOC_TX4939
- bool
- select CEVT_TXX9
- imply HAS_TXX9_SERIAL
- select HAVE_PCI
- select PCI_TX4927
- imply HAS_TXX9_ACLC
-
config TOSHIBA_FPCIB0
bool "FPCIB0 Backplane Support"
depends on PCI && MACH_TXX9
diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile
index 62b6dc6915e3..be5af9fe7c11 100644
--- a/arch/mips/txx9/generic/Makefile
+++ b/arch/mips/txx9/generic/Makefile
@@ -8,5 +8,4 @@ obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_SOC_TX3927) += setup_tx3927.o irq_tx3927.o
obj-$(CONFIG_SOC_TX4927) += mem_tx4927.o setup_tx4927.o irq_tx4927.o
obj-$(CONFIG_SOC_TX4938) += mem_tx4927.o setup_tx4938.o irq_tx4938.o
-obj-$(CONFIG_SOC_TX4939) += setup_tx4939.o irq_tx4939.o
obj-$(CONFIG_TOSHIBA_FPCIB0) += smsc_fdc37m81x.o
diff --git a/arch/mips/txx9/generic/irq_tx4939.c b/arch/mips/txx9/generic/irq_tx4939.c
deleted file mode 100644
index 0d7267e81a8c..000000000000
--- a/arch/mips/txx9/generic/irq_tx4939.c
+++ /dev/null
@@ -1,216 +0,0 @@
-/*
- * TX4939 irq routines
- * Based on linux/arch/mips/kernel/irq_txx9.c,
- * and RBTX49xx patch from CELF patch archive.
- *
- * Copyright 2001, 2003-2005 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ahennessy@mvista.com
- * source@mvista.com
- * Copyright (C) 2000-2001,2005-2007 Toshiba Corporation
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-/*
- * TX4939 defines 64 IRQs.
- * Similer to irq_txx9.c but different register layouts.
- */
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/types.h>
-#include <asm/irq_cpu.h>
-#include <asm/txx9irq.h>
-#include <asm/txx9/tx4939.h>
-
-/* IRCER : Int. Control Enable */
-#define TXx9_IRCER_ICE 0x00000001
-
-/* IRCR : Int. Control */
-#define TXx9_IRCR_LOW 0x00000000
-#define TXx9_IRCR_HIGH 0x00000001
-#define TXx9_IRCR_DOWN 0x00000002
-#define TXx9_IRCR_UP 0x00000003
-#define TXx9_IRCR_EDGE(cr) ((cr) & 0x00000002)
-
-/* IRSCR : Int. Status Control */
-#define TXx9_IRSCR_EIClrE 0x00000100
-#define TXx9_IRSCR_EIClr_MASK 0x0000000f
-
-/* IRCSR : Int. Current Status */
-#define TXx9_IRCSR_IF 0x00010000
-
-#define irc_dlevel 0
-#define irc_elevel 1
-
-static struct {
- unsigned char level;
- unsigned char mode;
-} tx4939irq[TX4939_NUM_IR] __read_mostly;
-
-static void tx4939_irq_unmask(struct irq_data *d)
-{
- unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
- u32 __iomem *lvlp;
- int ofs;
- if (irq_nr < 32) {
- irq_nr--;
- lvlp = &tx4939_ircptr->lvl[(irq_nr % 16) / 2].r;
- } else {
- irq_nr -= 32;
- lvlp = &tx4939_ircptr->lvl[8 + (irq_nr % 16) / 2].r;
- }
- ofs = (irq_nr & 16) + (irq_nr & 1) * 8;
- __raw_writel((__raw_readl(lvlp) & ~(0xff << ofs))
- | (tx4939irq[irq_nr].level << ofs),
- lvlp);
-}
-
-static inline void tx4939_irq_mask(struct irq_data *d)
-{
- unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
- u32 __iomem *lvlp;
- int ofs;
- if (irq_nr < 32) {
- irq_nr--;
- lvlp = &tx4939_ircptr->lvl[(irq_nr % 16) / 2].r;
- } else {
- irq_nr -= 32;
- lvlp = &tx4939_ircptr->lvl[8 + (irq_nr % 16) / 2].r;
- }
- ofs = (irq_nr & 16) + (irq_nr & 1) * 8;
- __raw_writel((__raw_readl(lvlp) & ~(0xff << ofs))
- | (irc_dlevel << ofs),
- lvlp);
- mmiowb();
-}
-
-static void tx4939_irq_mask_ack(struct irq_data *d)
-{
- unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
-
- tx4939_irq_mask(d);
- if (TXx9_IRCR_EDGE(tx4939irq[irq_nr].mode)) {
- irq_nr--;
- /* clear edge detection */
- __raw_writel((TXx9_IRSCR_EIClrE | (irq_nr & 0xf))
- << (irq_nr & 0x10),
- &tx4939_ircptr->edc.r);
- }
-}
-
-static int tx4939_irq_set_type(struct irq_data *d, unsigned int flow_type)
-{
- unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
- u32 cr;
- u32 __iomem *crp;
- int ofs;
- int mode;
-
- if (flow_type & IRQF_TRIGGER_PROBE)
- return 0;
- switch (flow_type & IRQF_TRIGGER_MASK) {
- case IRQF_TRIGGER_RISING:
- mode = TXx9_IRCR_UP;
- break;
- case IRQF_TRIGGER_FALLING:
- mode = TXx9_IRCR_DOWN;
- break;
- case IRQF_TRIGGER_HIGH:
- mode = TXx9_IRCR_HIGH;
- break;
- case IRQF_TRIGGER_LOW:
- mode = TXx9_IRCR_LOW;
- break;
- default:
- return -EINVAL;
- }
- if (irq_nr < 32) {
- irq_nr--;
- crp = &tx4939_ircptr->dm[(irq_nr & 8) >> 3].r;
- } else {
- irq_nr -= 32;
- crp = &tx4939_ircptr->dm2[((irq_nr & 8) >> 3)].r;
- }
- ofs = (((irq_nr & 16) >> 1) | (irq_nr & (8 - 1))) * 2;
- cr = __raw_readl(crp);
- cr &= ~(0x3 << ofs);
- cr |= (mode & 0x3) << ofs;
- __raw_writel(cr, crp);
- tx4939irq[irq_nr].mode = mode;
- return 0;
-}
-
-static struct irq_chip tx4939_irq_chip = {
- .name = "TX4939",
- .irq_ack = tx4939_irq_mask_ack,
- .irq_mask = tx4939_irq_mask,
- .irq_mask_ack = tx4939_irq_mask_ack,
- .irq_unmask = tx4939_irq_unmask,
- .irq_set_type = tx4939_irq_set_type,
-};
-
-static int tx4939_irq_set_pri(int irc_irq, int new_pri)
-{
- int old_pri;
-
- if ((unsigned int)irc_irq >= TX4939_NUM_IR)
- return 0;
- old_pri = tx4939irq[irc_irq].level;
- tx4939irq[irc_irq].level = new_pri;
- return old_pri;
-}
-
-void __init tx4939_irq_init(void)
-{
- int i;
-
- mips_cpu_irq_init();
- /* disable interrupt control */
- __raw_writel(0, &tx4939_ircptr->den.r);
- __raw_writel(0, &tx4939_ircptr->maskint.r);
- __raw_writel(0, &tx4939_ircptr->maskext.r);
- /* irq_base + 0 is not used */
- for (i = 1; i < TX4939_NUM_IR; i++) {
- tx4939irq[i].level = 4; /* middle level */
- tx4939irq[i].mode = TXx9_IRCR_LOW;
- irq_set_chip_and_handler(TXX9_IRQ_BASE + i, &tx4939_irq_chip,
- handle_level_irq);
- }
-
- /* mask all IRC interrupts */
- __raw_writel(0, &tx4939_ircptr->msk.r);
- for (i = 0; i < 16; i++)
- __raw_writel(0, &tx4939_ircptr->lvl[i].r);
- /* setup IRC interrupt mode (Low Active) */
- for (i = 0; i < 2; i++)
- __raw_writel(0, &tx4939_ircptr->dm[i].r);
- for (i = 0; i < 2; i++)
- __raw_writel(0, &tx4939_ircptr->dm2[i].r);
- /* enable interrupt control */
- __raw_writel(TXx9_IRCER_ICE, &tx4939_ircptr->den.r);
- __raw_writel(irc_elevel, &tx4939_ircptr->msk.r);
-
- irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4939_IRC_INT,
- handle_simple_irq);
-
- /* raise priority for errors, timers, sio */
- tx4939_irq_set_pri(TX4939_IR_WTOERR, 7);
- tx4939_irq_set_pri(TX4939_IR_PCIERR, 7);
- tx4939_irq_set_pri(TX4939_IR_PCIPME, 7);
- for (i = 0; i < TX4939_NUM_IR_TMR; i++)
- tx4939_irq_set_pri(TX4939_IR_TMR(i), 6);
- for (i = 0; i < TX4939_NUM_IR_SIO; i++)
- tx4939_irq_set_pri(TX4939_IR_SIO(i), 5);
-}
-
-int tx4939_irq(void)
-{
- u32 csr = __raw_readl(&tx4939_ircptr->cs.r);
-
- if (likely(!(csr & TXx9_IRCSR_IF)))
- return TXX9_IRQ_BASE + (csr & (TX4939_NUM_IR - 1));
- return -1;
-}
diff --git a/arch/mips/txx9/generic/setup_tx4939.c b/arch/mips/txx9/generic/setup_tx4939.c
deleted file mode 100644
index f5f59b7401a3..000000000000
--- a/arch/mips/txx9/generic/setup_tx4939.c
+++ /dev/null
@@ -1,568 +0,0 @@
-/*
- * TX4939 setup routines
- * Based on linux/arch/mips/txx9/generic/setup_tx4938.c,
- * and RBTX49xx patch from CELF patch archive.
- *
- * 2003-2005 (c) MontaVista Software, Inc.
- * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/notifier.h>
-#include <linux/device.h>
-#include <linux/ethtool.h>
-#include <linux/param.h>
-#include <linux/ptrace.h>
-#include <linux/mtd/physmap.h>
-#include <linux/platform_device.h>
-#include <linux/platform_data/txx9/ndfmc.h>
-#include <asm/reboot.h>
-#include <asm/traps.h>
-#include <asm/txx9irq.h>
-#include <asm/txx9tmr.h>
-#include <asm/txx9/generic.h>
-#include <asm/txx9/dmac.h>
-#include <asm/txx9/tx4939.h>
-
-static void __init tx4939_wdr_init(void)
-{
- /* report watchdog reset status */
- if (____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_WDRST)
- pr_warn("Watchdog reset detected at 0x%lx\n",
- read_c0_errorepc());
- /* clear WatchDogReset (W1C) */
- tx4939_ccfg_set(TX4939_CCFG_WDRST);
- /* do reset on watchdog */
- tx4939_ccfg_set(TX4939_CCFG_WR);
-}
-
-void __init tx4939_wdt_init(void)
-{
- txx9_wdt_init(TX4939_TMR_REG(2) & 0xfffffffffULL);
-}
-
-static void tx4939_machine_restart(char *command)
-{
- local_irq_disable();
- pr_emerg("Rebooting (with %s watchdog reset)...\n",
- (____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_WDREXEN) ?
- "external" : "internal");
- /* clear watchdog status */
- tx4939_ccfg_set(TX4939_CCFG_WDRST); /* W1C */
- txx9_wdt_now(TX4939_TMR_REG(2) & 0xfffffffffULL);
- while (!(____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_WDRST))
- ;
- mdelay(10);
- if (____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_WDREXEN) {
- pr_emerg("Rebooting (with internal watchdog reset)...\n");
- /* External WDRST failed. Do internal watchdog reset */
- tx4939_ccfg_clear(TX4939_CCFG_WDREXEN);
- }
- /* fallback */
- (*_machine_halt)();
-}
-
-void show_registers(struct pt_regs *regs);
-static int tx4939_be_handler(struct pt_regs *regs, int is_fixup)
-{
- int data = regs->cp0_cause & 4;
- console_verbose();
- pr_err("%cBE exception at %#lx\n",
- data ? 'D' : 'I', regs->cp0_epc);
- pr_err("ccfg:%llx, toea:%llx\n",
- (unsigned long long)____raw_readq(&tx4939_ccfgptr->ccfg),
- (unsigned long long)____raw_readq(&tx4939_ccfgptr->toea));
-#ifdef CONFIG_PCI
- tx4927_report_pcic_status();
-#endif
- show_registers(regs);
- panic("BusError!");
-}
-static void __init tx4939_be_init(void)
-{
- mips_set_be_handler(tx4939_be_handler);
-}
-
-static struct resource tx4939_sdram_resource[4];
-static struct resource tx4939_sram_resource;
-#define TX4939_SRAM_SIZE 0x800
-
-void __init tx4939_setup(void)
-{
- int i;
- __u32 divmode;
- __u64 pcfg;
- unsigned int cpuclk = 0;
-
- txx9_reg_res_init(TX4939_REV_PCODE(), TX4939_REG_BASE,
- TX4939_REG_SIZE);
- set_c0_config(TX49_CONF_CWFON);
-
- /* SDRAMC,EBUSC are configured by PROM */
- for (i = 0; i < 4; i++) {
- if (!(TX4939_EBUSC_CR(i) & 0x8))
- continue; /* disabled */
- txx9_ce_res[i].start = (unsigned long)TX4939_EBUSC_BA(i);
- txx9_ce_res[i].end =
- txx9_ce_res[i].start + TX4939_EBUSC_SIZE(i) - 1;
- request_resource(&iomem_resource, &txx9_ce_res[i]);
- }
-
- /* clocks */
- if (txx9_master_clock) {
- /* calculate cpu_clock from master_clock */
- divmode = (__u32)____raw_readq(&tx4939_ccfgptr->ccfg) &
- TX4939_CCFG_MULCLK_MASK;
- cpuclk = txx9_master_clock * 20 / 2;
- switch (divmode) {
- case TX4939_CCFG_MULCLK_8:
- cpuclk = cpuclk / 3 * 4 /* / 6 * 8 */; break;
- case TX4939_CCFG_MULCLK_9:
- cpuclk = cpuclk / 2 * 3 /* / 6 * 9 */; break;
- case TX4939_CCFG_MULCLK_10:
- cpuclk = cpuclk / 3 * 5 /* / 6 * 10 */; break;
- case TX4939_CCFG_MULCLK_11:
- cpuclk = cpuclk / 6 * 11; break;
- case TX4939_CCFG_MULCLK_12:
- cpuclk = cpuclk * 2 /* / 6 * 12 */; break;
- case TX4939_CCFG_MULCLK_13:
- cpuclk = cpuclk / 6 * 13; break;
- case TX4939_CCFG_MULCLK_14:
- cpuclk = cpuclk / 3 * 7 /* / 6 * 14 */; break;
- case TX4939_CCFG_MULCLK_15:
- cpuclk = cpuclk / 2 * 5 /* / 6 * 15 */; break;
- }
- txx9_cpu_clock = cpuclk;
- } else {
- if (txx9_cpu_clock == 0)
- txx9_cpu_clock = 400000000; /* 400MHz */
- /* calculate master_clock from cpu_clock */
- cpuclk = txx9_cpu_clock;
- divmode = (__u32)____raw_readq(&tx4939_ccfgptr->ccfg) &
- TX4939_CCFG_MULCLK_MASK;
- switch (divmode) {
- case TX4939_CCFG_MULCLK_8:
- txx9_master_clock = cpuclk * 6 / 8; break;
- case TX4939_CCFG_MULCLK_9:
- txx9_master_clock = cpuclk * 6 / 9; break;
- case TX4939_CCFG_MULCLK_10:
- txx9_master_clock = cpuclk * 6 / 10; break;
- case TX4939_CCFG_MULCLK_11:
- txx9_master_clock = cpuclk * 6 / 11; break;
- case TX4939_CCFG_MULCLK_12:
- txx9_master_clock = cpuclk * 6 / 12; break;
- case TX4939_CCFG_MULCLK_13:
- txx9_master_clock = cpuclk * 6 / 13; break;
- case TX4939_CCFG_MULCLK_14:
- txx9_master_clock = cpuclk * 6 / 14; break;
- case TX4939_CCFG_MULCLK_15:
- txx9_master_clock = cpuclk * 6 / 15; break;
- }
- txx9_master_clock /= 10; /* * 2 / 20 */
- }
- /* calculate gbus_clock from cpu_clock */
- divmode = (__u32)____raw_readq(&tx4939_ccfgptr->ccfg) &
- TX4939_CCFG_YDIVMODE_MASK;
- txx9_gbus_clock = txx9_cpu_clock;
- switch (divmode) {
- case TX4939_CCFG_YDIVMODE_2:
- txx9_gbus_clock /= 2; break;
- case TX4939_CCFG_YDIVMODE_3:
- txx9_gbus_clock /= 3; break;
- case TX4939_CCFG_YDIVMODE_5:
- txx9_gbus_clock /= 5; break;
- case TX4939_CCFG_YDIVMODE_6:
- txx9_gbus_clock /= 6; break;
- }
- /* change default value to udelay/mdelay take reasonable time */
- loops_per_jiffy = txx9_cpu_clock / HZ / 2;
-
- /* CCFG */
- tx4939_wdr_init();
- /* clear BusErrorOnWrite flag (W1C) */
- tx4939_ccfg_set(TX4939_CCFG_WDRST | TX4939_CCFG_BEOW);
- /* enable Timeout BusError */
- if (txx9_ccfg_toeon)
- tx4939_ccfg_set(TX4939_CCFG_TOE);
-
- /* DMA selection */
- txx9_clear64(&tx4939_ccfgptr->pcfg, TX4939_PCFG_DMASEL_ALL);
-
- /* Use external clock for external arbiter */
- if (!(____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCIARB))
- txx9_clear64(&tx4939_ccfgptr->pcfg, TX4939_PCFG_PCICLKEN_ALL);
-
- pr_info("%s -- %dMHz(M%dMHz,G%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
- txx9_pcode_str,
- (cpuclk + 500000) / 1000000,
- (txx9_master_clock + 500000) / 1000000,
- (txx9_gbus_clock + 500000) / 1000000,
- (__u32)____raw_readq(&tx4939_ccfgptr->crir),
- ____raw_readq(&tx4939_ccfgptr->ccfg),
- ____raw_readq(&tx4939_ccfgptr->pcfg));
-
- pr_info("%s DDRC -- EN:%08x", txx9_pcode_str,
- (__u32)____raw_readq(&tx4939_ddrcptr->winen));
- for (i = 0; i < 4; i++) {
- __u64 win = ____raw_readq(&tx4939_ddrcptr->win[i]);
- if (!((__u32)____raw_readq(&tx4939_ddrcptr->winen) & (1 << i)))
- continue; /* disabled */
- pr_cont(" #%d:%016llx", i, win);
- tx4939_sdram_resource[i].name = "DDR SDRAM";
- tx4939_sdram_resource[i].start =
- (unsigned long)(win >> 48) << 20;
- tx4939_sdram_resource[i].end =
- ((((unsigned long)(win >> 32) & 0xffff) + 1) <<
- 20) - 1;
- tx4939_sdram_resource[i].flags = IORESOURCE_MEM;
- request_resource(&iomem_resource, &tx4939_sdram_resource[i]);
- }
- pr_cont("\n");
-
- /* SRAM */
- if (____raw_readq(&tx4939_sramcptr->cr) & 1) {
- unsigned int size = TX4939_SRAM_SIZE;
- tx4939_sram_resource.name = "SRAM";
- tx4939_sram_resource.start =
- (____raw_readq(&tx4939_sramcptr->cr) >> (39-11))
- & ~(size - 1);
- tx4939_sram_resource.end =
- tx4939_sram_resource.start + TX4939_SRAM_SIZE - 1;
- tx4939_sram_resource.flags = IORESOURCE_MEM;
- request_resource(&iomem_resource, &tx4939_sram_resource);
- }
-
- /* TMR */
- /* disable all timers */
- for (i = 0; i < TX4939_NR_TMR; i++)
- txx9_tmr_init(TX4939_TMR_REG(i) & 0xfffffffffULL);
-
- /* set PCIC1 reset (required to prevent hangup on BIST) */
- txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_PCI1RST);
- pcfg = ____raw_readq(&tx4939_ccfgptr->pcfg);
- if (pcfg & (TX4939_PCFG_ET0MODE | TX4939_PCFG_ET1MODE)) {
- mdelay(1); /* at least 128 cpu clock */
- /* clear PCIC1 reset */
- txx9_clear64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_PCI1RST);
- } else {
- pr_info("%s: stop PCIC1\n", txx9_pcode_str);
- /* stop PCIC1 */
- txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_PCI1CKD);
- }
- if (!(pcfg & TX4939_PCFG_ET0MODE)) {
- pr_info("%s: stop ETH0\n", txx9_pcode_str);
- txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_ETH0RST);
- txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_ETH0CKD);
- }
- if (!(pcfg & TX4939_PCFG_ET1MODE)) {
- pr_info("%s: stop ETH1\n", txx9_pcode_str);
- txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_ETH1RST);
- txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_ETH1CKD);
- }
-
- _machine_restart = tx4939_machine_restart;
- board_be_init = tx4939_be_init;
-}
-
-void __init tx4939_time_init(unsigned int tmrnr)
-{
- if (____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_TINTDIS)
- txx9_clockevent_init(TX4939_TMR_REG(tmrnr) & 0xfffffffffULL,
- TXX9_IRQ_BASE + TX4939_IR_TMR(tmrnr),
- TXX9_IMCLK);
-}
-
-void __init tx4939_sio_init(unsigned int sclk, unsigned int cts_mask)
-{
- int i;
- unsigned int ch_mask = 0;
- __u64 pcfg = __raw_readq(&tx4939_ccfgptr->pcfg);
-
- cts_mask |= ~1; /* only SIO0 have RTS/CTS */
- if ((pcfg & TX4939_PCFG_SIO2MODE_MASK) != TX4939_PCFG_SIO2MODE_SIO0)
- cts_mask |= 1 << 0; /* disable SIO0 RTS/CTS by PCFG setting */
- if ((pcfg & TX4939_PCFG_SIO2MODE_MASK) != TX4939_PCFG_SIO2MODE_SIO2)
- ch_mask |= 1 << 2; /* disable SIO2 by PCFG setting */
- if (pcfg & TX4939_PCFG_SIO3MODE)
- ch_mask |= 1 << 3; /* disable SIO3 by PCFG setting */
- for (i = 0; i < 4; i++) {
- if ((1 << i) & ch_mask)
- continue;
- txx9_sio_init(TX4939_SIO_REG(i) & 0xfffffffffULL,
- TXX9_IRQ_BASE + TX4939_IR_SIO(i),
- i, sclk, (1 << i) & cts_mask);
- }
-}
-
-#if IS_ENABLED(CONFIG_TC35815)
-static u32 tx4939_get_eth_speed(struct net_device *dev)
-{
- struct ethtool_link_ksettings cmd;
-
- if (__ethtool_get_link_ksettings(dev, &cmd))
- return 100; /* default 100Mbps */
-
- return cmd.base.speed;
-}
-
-static int tx4939_netdev_event(struct notifier_block *this,
- unsigned long event,
- void *ptr)
-{
- struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-
- if (event == NETDEV_CHANGE && netif_carrier_ok(dev)) {
- __u64 bit = 0;
- if (dev->irq == TXX9_IRQ_BASE + TX4939_IR_ETH(0))
- bit = TX4939_PCFG_SPEED0;
- else if (dev->irq == TXX9_IRQ_BASE + TX4939_IR_ETH(1))
- bit = TX4939_PCFG_SPEED1;
- if (bit) {
- if (tx4939_get_eth_speed(dev) == 100)
- txx9_set64(&tx4939_ccfgptr->pcfg, bit);
- else
- txx9_clear64(&tx4939_ccfgptr->pcfg, bit);
- }
- }
- return NOTIFY_DONE;
-}
-
-static struct notifier_block tx4939_netdev_notifier = {
- .notifier_call = tx4939_netdev_event,
- .priority = 1,
-};
-
-void __init tx4939_ethaddr_init(unsigned char *addr0, unsigned char *addr1)
-{
- u64 pcfg = __raw_readq(&tx4939_ccfgptr->pcfg);
-
- if (addr0 && (pcfg & TX4939_PCFG_ET0MODE))
- txx9_ethaddr_init(TXX9_IRQ_BASE + TX4939_IR_ETH(0), addr0);
- if (addr1 && (pcfg & TX4939_PCFG_ET1MODE))
- txx9_ethaddr_init(TXX9_IRQ_BASE + TX4939_IR_ETH(1), addr1);
- register_netdevice_notifier(&tx4939_netdev_notifier);
-}
-#else
-void __init tx4939_ethaddr_init(unsigned char *addr0, unsigned char *addr1)
-{
-}
-#endif
-
-void __init tx4939_mtd_init(int ch)
-{
- struct physmap_flash_data pdata = {
- .width = TX4939_EBUSC_WIDTH(ch) / 8,
- };
- unsigned long start = txx9_ce_res[ch].start;
- unsigned long size = txx9_ce_res[ch].end - start + 1;
-
- if (!(TX4939_EBUSC_CR(ch) & 0x8))
- return; /* disabled */
- txx9_physmap_flash_init(ch, start, size, &pdata);
-}
-
-#define TX4939_ATA_REG_PHYS(ch) (TX4939_ATA_REG(ch) & 0xfffffffffULL)
-void __init tx4939_ata_init(void)
-{
- static struct resource ata0_res[] = {
- {
- .start = TX4939_ATA_REG_PHYS(0),
- .end = TX4939_ATA_REG_PHYS(0) + 0x1000 - 1,
- .flags = IORESOURCE_MEM,
- }, {
- .start = TXX9_IRQ_BASE + TX4939_IR_ATA(0),
- .flags = IORESOURCE_IRQ,
- },
- };
- static struct resource ata1_res[] = {
- {
- .start = TX4939_ATA_REG_PHYS(1),
- .end = TX4939_ATA_REG_PHYS(1) + 0x1000 - 1,
- .flags = IORESOURCE_MEM,
- }, {
- .start = TXX9_IRQ_BASE + TX4939_IR_ATA(1),
- .flags = IORESOURCE_IRQ,
- },
- };
- static struct platform_device ata0_dev = {
- .name = "tx4939ide",
- .id = 0,
- .num_resources = ARRAY_SIZE(ata0_res),
- .resource = ata0_res,
- };
- static struct platform_device ata1_dev = {
- .name = "tx4939ide",
- .id = 1,
- .num_resources = ARRAY_SIZE(ata1_res),
- .resource = ata1_res,
- };
- __u64 pcfg = __raw_readq(&tx4939_ccfgptr->pcfg);
-
- if (pcfg & TX4939_PCFG_ATA0MODE)
- platform_device_register(&ata0_dev);
- if ((pcfg & (TX4939_PCFG_ATA1MODE |
- TX4939_PCFG_ET1MODE |
- TX4939_PCFG_ET0MODE)) == TX4939_PCFG_ATA1MODE)
- platform_device_register(&ata1_dev);
-}
-
-void __init tx4939_rtc_init(void)
-{
- static struct resource res[] = {
- {
- .start = TX4939_RTC_REG & 0xfffffffffULL,
- .end = (TX4939_RTC_REG & 0xfffffffffULL) + 0x100 - 1,
- .flags = IORESOURCE_MEM,
- }, {
- .start = TXX9_IRQ_BASE + TX4939_IR_RTC,
- .flags = IORESOURCE_IRQ,
- },
- };
- static struct platform_device rtc_dev = {
- .name = "tx4939rtc",
- .id = -1,
- .num_resources = ARRAY_SIZE(res),
- .resource = res,
- };
-
- platform_device_register(&rtc_dev);
-}
-
-void __init tx4939_ndfmc_init(unsigned int hold, unsigned int spw,
- unsigned char ch_mask, unsigned char wide_mask)
-{
- struct txx9ndfmc_platform_data plat_data = {
- .shift = 1,
- .gbus_clock = txx9_gbus_clock,
- .hold = hold,
- .spw = spw,
- .flags = NDFMC_PLAT_FLAG_NO_RSTR | NDFMC_PLAT_FLAG_HOLDADD |
- NDFMC_PLAT_FLAG_DUMMYWRITE,
- .ch_mask = ch_mask,
- .wide_mask = wide_mask,
- };
- txx9_ndfmc_init(TX4939_NDFMC_REG & 0xfffffffffULL, &plat_data);
-}
-
-void __init tx4939_dmac_init(int memcpy_chan0, int memcpy_chan1)
-{
- struct txx9dmac_platform_data plat_data = {
- .have_64bit_regs = true,
- };
- int i;
-
- for (i = 0; i < 2; i++) {
- plat_data.memcpy_chan = i ? memcpy_chan1 : memcpy_chan0;
- txx9_dmac_init(i, TX4939_DMA_REG(i) & 0xfffffffffULL,
- TXX9_IRQ_BASE + TX4939_IR_DMA(i, 0),
- &plat_data);
- }
-}
-
-void __init tx4939_aclc_init(void)
-{
- u64 pcfg = __raw_readq(&tx4939_ccfgptr->pcfg);
-
- if ((pcfg & TX4939_PCFG_I2SMODE_MASK) == TX4939_PCFG_I2SMODE_ACLC)
- txx9_aclc_init(TX4939_ACLC_REG & 0xfffffffffULL,
- TXX9_IRQ_BASE + TX4939_IR_ACLC, 1, 0, 1);
-}
-
-void __init tx4939_sramc_init(void)
-{
- if (tx4939_sram_resource.start)
- txx9_sramc_init(&tx4939_sram_resource);
-}
-
-void __init tx4939_rng_init(void)
-{
- static struct resource res = {
- .start = TX4939_RNG_REG & 0xfffffffffULL,
- .end = (TX4939_RNG_REG & 0xfffffffffULL) + 0x30 - 1,
- .flags = IORESOURCE_MEM,
- };
- static struct platform_device pdev = {
- .name = "tx4939-rng",
- .id = -1,
- .num_resources = 1,
- .resource = &res,
- };
-
- platform_device_register(&pdev);
-}
-
-static void __init tx4939_stop_unused_modules(void)
-{
- __u64 pcfg, rst = 0, ckd = 0;
- char buf[128];
-
- buf[0] = '\0';
- local_irq_disable();
- pcfg = ____raw_readq(&tx4939_ccfgptr->pcfg);
- if ((pcfg & TX4939_PCFG_I2SMODE_MASK) !=
- TX4939_PCFG_I2SMODE_ACLC) {
- rst |= TX4939_CLKCTR_ACLRST;
- ckd |= TX4939_CLKCTR_ACLCKD;
- strcat(buf, " ACLC");
- }
- if ((pcfg & TX4939_PCFG_I2SMODE_MASK) !=
- TX4939_PCFG_I2SMODE_I2S &&
- (pcfg & TX4939_PCFG_I2SMODE_MASK) !=
- TX4939_PCFG_I2SMODE_I2S_ALT) {
- rst |= TX4939_CLKCTR_I2SRST;
- ckd |= TX4939_CLKCTR_I2SCKD;
- strcat(buf, " I2S");
- }
- if (!(pcfg & TX4939_PCFG_ATA0MODE)) {
- rst |= TX4939_CLKCTR_ATA0RST;
- ckd |= TX4939_CLKCTR_ATA0CKD;
- strcat(buf, " ATA0");
- }
- if (!(pcfg & TX4939_PCFG_ATA1MODE)) {
- rst |= TX4939_CLKCTR_ATA1RST;
- ckd |= TX4939_CLKCTR_ATA1CKD;
- strcat(buf, " ATA1");
- }
- if (pcfg & TX4939_PCFG_SPIMODE) {
- rst |= TX4939_CLKCTR_SPIRST;
- ckd |= TX4939_CLKCTR_SPICKD;
- strcat(buf, " SPI");
- }
- if (!(pcfg & (TX4939_PCFG_VSSMODE | TX4939_PCFG_VPSMODE))) {
- rst |= TX4939_CLKCTR_VPCRST;
- ckd |= TX4939_CLKCTR_VPCCKD;
- strcat(buf, " VPC");
- }
- if ((pcfg & TX4939_PCFG_SIO2MODE_MASK) != TX4939_PCFG_SIO2MODE_SIO2) {
- rst |= TX4939_CLKCTR_SIO2RST;
- ckd |= TX4939_CLKCTR_SIO2CKD;
- strcat(buf, " SIO2");
- }
- if (pcfg & TX4939_PCFG_SIO3MODE) {
- rst |= TX4939_CLKCTR_SIO3RST;
- ckd |= TX4939_CLKCTR_SIO3CKD;
- strcat(buf, " SIO3");
- }
- if (rst | ckd) {
- txx9_set64(&tx4939_ccfgptr->clkctr, rst);
- txx9_set64(&tx4939_ccfgptr->clkctr, ckd);
- }
- local_irq_enable();
- if (buf[0])
- pr_info("%s: stop%s\n", txx9_pcode_str, buf);
-}
-
-static int __init tx4939_late_init(void)
-{
- if (txx9_pcode != 0x4939)
- return -ENODEV;
- tx4939_stop_unused_modules();
- return 0;
-}
-late_initcall(tx4939_late_init);
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 814b3d0ca7b7..a70d27e4ff7f 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -226,19 +226,6 @@ config HW_RANDOM_VIRTIO
To compile this driver as a module, choose M here: the
module will be called virtio-rng. If unsure, say N.
-config HW_RANDOM_TX4939
- tristate "TX4939 Random Number Generator support"
- depends on SOC_TX4939
- default HW_RANDOM
- help
- This driver provides kernel-side support for the Random Number
- Generator hardware found on TX4939 SoC.
-
- To compile this driver as a module, choose M here: the
- module will be called tx4939-rng.
-
- If unsure, say Y.
-
config HW_RANDOM_MXC_RNGA
tristate "Freescale i.MX RNGA Random Number Generator"
depends on SOC_IMX31
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index a5a1c765a394..b4f9b621b447 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -20,7 +20,6 @@ obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o
obj-$(CONFIG_HW_RANDOM_OMAP3_ROM) += omap3-rom-rng.o
obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o
obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o
-obj-$(CONFIG_HW_RANDOM_TX4939) += tx4939-rng.o
obj-$(CONFIG_HW_RANDOM_MXC_RNGA) += mxc-rnga.o
obj-$(CONFIG_HW_RANDOM_IMX_RNGC) += imx-rngc.o
obj-$(CONFIG_HW_RANDOM_INGENIC_RNG) += ingenic-rng.o
diff --git a/drivers/char/hw_random/tx4939-rng.c b/drivers/char/hw_random/tx4939-rng.c
deleted file mode 100644
index c8bd34e740fd..000000000000
--- a/drivers/char/hw_random/tx4939-rng.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * RNG driver for TX4939 Random Number Generators (RNG)
- *
- * Copyright (C) 2009 Atsushi Nemoto <anemo@mba.ocn.ne.jp>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/hw_random.h>
-#include <linux/gfp.h>
-
-#define TX4939_RNG_RCSR 0x00000000
-#define TX4939_RNG_ROR(n) (0x00000018 + (n) * 8)
-
-#define TX4939_RNG_RCSR_INTE 0x00000008
-#define TX4939_RNG_RCSR_RST 0x00000004
-#define TX4939_RNG_RCSR_FIN 0x00000002
-#define TX4939_RNG_RCSR_ST 0x00000001
-
-struct tx4939_rng {
- struct hwrng rng;
- void __iomem *base;
- u64 databuf[3];
- unsigned int data_avail;
-};
-
-static void rng_io_start(void)
-{
-#ifndef CONFIG_64BIT
- /*
- * readq is reading a 64-bit register using a 64-bit load. On
- * a 32-bit kernel however interrupts or any other processor
- * exception would clobber the upper 32-bit of the processor
- * register so interrupts need to be disabled.
- */
- local_irq_disable();
-#endif
-}
-
-static void rng_io_end(void)
-{
-#ifndef CONFIG_64BIT
- local_irq_enable();
-#endif
-}
-
-static u64 read_rng(void __iomem *base, unsigned int offset)
-{
- return ____raw_readq(base + offset);
-}
-
-static void write_rng(u64 val, void __iomem *base, unsigned int offset)
-{
- return ____raw_writeq(val, base + offset);
-}
-
-static int tx4939_rng_data_present(struct hwrng *rng, int wait)
-{
- struct tx4939_rng *rngdev = container_of(rng, struct tx4939_rng, rng);
- int i;
-
- if (rngdev->data_avail)
- return rngdev->data_avail;
- for (i = 0; i < 20; i++) {
- rng_io_start();
- if (!(read_rng(rngdev->base, TX4939_RNG_RCSR)
- & TX4939_RNG_RCSR_ST)) {
- rngdev->databuf[0] =
- read_rng(rngdev->base, TX4939_RNG_ROR(0));
- rngdev->databuf[1] =
- read_rng(rngdev->base, TX4939_RNG_ROR(1));
- rngdev->databuf[2] =
- read_rng(rngdev->base, TX4939_RNG_ROR(2));
- rngdev->data_avail =
- sizeof(rngdev->databuf) / sizeof(u32);
- /* Start RNG */
- write_rng(TX4939_RNG_RCSR_ST,
- rngdev->base, TX4939_RNG_RCSR);
- wait = 0;
- }
- rng_io_end();
- if (!wait)
- break;
- /* 90 bus clock cycles by default for generation */
- ndelay(90 * 5);
- }
- return rngdev->data_avail;
-}
-
-static int tx4939_rng_data_read(struct hwrng *rng, u32 *buffer)
-{
- struct tx4939_rng *rngdev = container_of(rng, struct tx4939_rng, rng);
-
- rngdev->data_avail--;
- *buffer = *((u32 *)&rngdev->databuf + rngdev->data_avail);
- return sizeof(u32);
-}
-
-static int __init tx4939_rng_probe(struct platform_device *dev)
-{
- struct tx4939_rng *rngdev;
- int i;
-
- rngdev = devm_kzalloc(&dev->dev, sizeof(*rngdev), GFP_KERNEL);
- if (!rngdev)
- return -ENOMEM;
- rngdev->base = devm_platform_ioremap_resource(dev, 0);
- if (IS_ERR(rngdev->base))
- return PTR_ERR(rngdev->base);
-
- rngdev->rng.name = dev_name(&dev->dev);
- rngdev->rng.data_present = tx4939_rng_data_present;
- rngdev->rng.data_read = tx4939_rng_data_read;
-
- rng_io_start();
- /* Reset RNG */
- write_rng(TX4939_RNG_RCSR_RST, rngdev->base, TX4939_RNG_RCSR);
- write_rng(0, rngdev->base, TX4939_RNG_RCSR);
- /* Start RNG */
- write_rng(TX4939_RNG_RCSR_ST, rngdev->base, TX4939_RNG_RCSR);
- rng_io_end();
- /*
- * Drop first two results. From the datasheet:
- * The quality of the random numbers generated immediately
- * after reset can be insufficient. Therefore, do not use
- * random numbers obtained from the first and second
- * generations; use the ones from the third or subsequent
- * generation.
- */
- for (i = 0; i < 2; i++) {
- rngdev->data_avail = 0;
- if (!tx4939_rng_data_present(&rngdev->rng, 1))
- return -EIO;
- }
-
- platform_set_drvdata(dev, rngdev);
- return devm_hwrng_register(&dev->dev, &rngdev->rng);
-}
-
-static struct platform_driver tx4939_rng_driver = {
- .driver = {
- .name = "tx4939-rng",
- },
-};
-
-module_platform_driver_probe(tx4939_rng_driver, tx4939_rng_probe);
-
-MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver for TX4939");
-MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index 67b7cb67c030..8af11511ddb0 100644
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -308,7 +308,7 @@ config MTD_NAND_DAVINCI
config MTD_NAND_TXX9NDFMC
tristate "TXx9 NAND controller"
- depends on SOC_TX4938 || SOC_TX4939 || COMPILE_TEST
+ depends on SOC_TX4938 || COMPILE_TEST
depends on HAS_IOMEM
help
This enables the NAND flash controller on the TXx9 SoCs.
--
2.29.2
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