All of lore.kernel.org
 help / color / mirror / Atom feed
* [can-next] can: remove Softing CANcard driver
@ 2026-08-15 10:34 Oliver Hartkopp
  2026-08-15 11:49 ` Oliver Hartkopp
  0 siblings, 1 reply; 2+ messages in thread
From: Oliver Hartkopp @ 2026-08-15 10:34 UTC (permalink / raw)
  To: linux-can; +Cc: Oliver Hartkopp, Kurt Van Dijck

The PCMCIA Softing CANcard2 is discontinued since 2013 and the latest
Windows drivers date back to Windows 7/8. The CANcard2 and also the
rebranded Vector CANcardXL make use of a firmware to drive its onboard
CPU to handle raw CAN messages (DPRAM) and its capability to perform
timing critical Classical CAN protocols like ISO 15765-2:2004.

The Softing Linux driver supported none of those higher layer CAN
protocols but only raw CAN CC traffic. In 2026 this functionality is
substituted with cost-effective USB CAN adapters, e.g. gs_usb.

Remove the softing driver as there's no known user and we lack the access
to this at least 25 y/o hardware for 10 years now.

Cc: Kurt Van Dijck <kurt.van.dijck@eia.be>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
---
 drivers/net/can/Kconfig                    |   1 -
 drivers/net/can/Makefile                   |   1 -
 drivers/net/can/softing/Kconfig            |  31 -
 drivers/net/can/softing/Makefile           |   5 -
 drivers/net/can/softing/softing.h          | 168 ----
 drivers/net/can/softing/softing_cs.c       | 335 --------
 drivers/net/can/softing/softing_fw.c       | 700 -----------------
 drivers/net/can/softing/softing_main.c     | 864 ---------------------
 drivers/net/can/softing/softing_platform.h |  41 -
 9 files changed, 2146 deletions(-)
 delete mode 100644 drivers/net/can/softing/Kconfig
 delete mode 100644 drivers/net/can/softing/Makefile
 delete mode 100644 drivers/net/can/softing/softing.h
 delete mode 100644 drivers/net/can/softing/softing_cs.c
 delete mode 100644 drivers/net/can/softing/softing_fw.c
 delete mode 100644 drivers/net/can/softing/softing_main.c
 delete mode 100644 drivers/net/can/softing/softing_platform.h

diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index a8fad6fe5302..fb16f67a99f9 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -252,11 +252,10 @@ source "drivers/net/can/m_can/Kconfig"
 source "drivers/net/can/mscan/Kconfig"
 source "drivers/net/can/peak_canfd/Kconfig"
 source "drivers/net/can/rcar/Kconfig"
 source "drivers/net/can/rockchip/Kconfig"
 source "drivers/net/can/sja1000/Kconfig"
-source "drivers/net/can/softing/Kconfig"
 source "drivers/net/can/spi/Kconfig"
 source "drivers/net/can/usb/Kconfig"
 
 endif #CAN_NETLINK
 
diff --git a/drivers/net/can/Makefile b/drivers/net/can/Makefile
index 4010d17f8583..fa2cdd7bcd0a 100644
--- a/drivers/net/can/Makefile
+++ b/drivers/net/can/Makefile
@@ -11,11 +11,10 @@ obj-y				+= dev/
 obj-y				+= esd/
 obj-y				+= rcar/
 obj-y				+= rockchip/
 obj-y				+= spi/
 obj-y				+= usb/
-obj-y				+= softing/
 
 obj-$(CONFIG_CAN_AT91)		+= at91_can.o
 obj-$(CONFIG_CAN_BXCAN)		+= bxcan.o
 obj-$(CONFIG_CAN_CAN327)	+= can327.o
 obj-$(CONFIG_CAN_CC770)		+= cc770/
diff --git a/drivers/net/can/softing/Kconfig b/drivers/net/can/softing/Kconfig
deleted file mode 100644
index 8afd7d0a1000..000000000000
--- a/drivers/net/can/softing/Kconfig
+++ /dev/null
@@ -1,31 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-config CAN_SOFTING
-	tristate "Softing Gmbh CAN generic support"
-	depends on HAS_IOMEM
-	help
-	  Support for CAN cards from Softing Gmbh & some cards
-	  from Vector Gmbh.
-	  Softing Gmbh CAN cards come with 1 or 2 physical buses.
-	  Those cards typically use Dual Port RAM to communicate
-	  with the host CPU. The interface is then identical for PCI
-	  and PCMCIA cards. This driver operates on a platform device,
-	  which has been created by softing_cs or softing_pci driver.
-	  Warning:
-	  The API of the card does not allow fine control per bus, but
-	  controls the 2 buses on the card together.
-	  As such, some actions (start/stop/busoff recovery) on 1 bus
-	  must bring down the other bus too temporarily.
-
-config CAN_SOFTING_CS
-	tristate "Softing Gmbh CAN pcmcia cards"
-	depends on PCMCIA
-	depends on CAN_SOFTING
-	help
-	  Support for PCMCIA cards from Softing Gmbh & some cards
-	  from Vector Gmbh.
-	  You need firmware for these, which you can get at
-	  https://github.com/linux-can/can-firmware
-	  This version of the driver is written against
-	  firmware version 4.6 (softing-fw-4.6-binaries.tar.gz)
-	  In order to use the card as CAN device, you need the Softing generic
-	  support too.
diff --git a/drivers/net/can/softing/Makefile b/drivers/net/can/softing/Makefile
deleted file mode 100644
index c51154000377..000000000000
--- a/drivers/net/can/softing/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-
-softing-y := softing_main.o softing_fw.o
-obj-$(CONFIG_CAN_SOFTING) += softing.o
-obj-$(CONFIG_CAN_SOFTING_CS) += softing_cs.o
diff --git a/drivers/net/can/softing/softing.h b/drivers/net/can/softing/softing.h
deleted file mode 100644
index 2893007ea05e..000000000000
--- a/drivers/net/can/softing/softing.h
+++ /dev/null
@@ -1,168 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * softing common interfaces
- *
- * by Kurt Van Dijck, 2008-2010
- */
-
-#include <linux/atomic.h>
-#include <linux/netdevice.h>
-#include <linux/ktime.h>
-#include <linux/mutex.h>
-#include <linux/spinlock.h>
-#include <linux/can.h>
-#include <linux/can/dev.h>
-
-#include "softing_platform.h"
-
-struct softing;
-
-struct softing_priv {
-	struct can_priv can; /* must be the first member! */
-	struct net_device *netdev;
-	struct softing *card;
-	struct {
-		int pending;
-		/* variables which hold the circular buffer */
-		int echo_put;
-		int echo_get;
-	} tx;
-	struct can_bittiming_const btr_const;
-	int index;
-	uint8_t output;
-	uint16_t chip;
-};
-#define netdev2softing(netdev)	((struct softing_priv *)netdev_priv(netdev))
-
-struct softing {
-	const struct softing_platform_data *pdat;
-	struct platform_device *pdev;
-	struct net_device *net[2];
-	spinlock_t spin; /* protect this structure & DPRAM access */
-	ktime_t ts_ref;
-	ktime_t ts_overflow; /* timestamp overflow value, in ktime */
-
-	struct {
-		/* indication of firmware status */
-		int up;
-		/* protection of the 'up' variable */
-		struct mutex lock;
-	} fw;
-	struct {
-		int nr;
-		int requested;
-		int svc_count;
-		unsigned int dpram_position;
-	} irq;
-	struct {
-		int pending;
-		int last_bus;
-		/*
-		 * keep the bus that last tx'd a message,
-		 * in order to let every netdev queue resume
-		 */
-	} tx;
-	__iomem uint8_t *dpram;
-	unsigned long dpram_phys;
-	unsigned long dpram_size;
-	struct {
-		uint16_t fw_version, hw_version, license, serial;
-		uint16_t chip[2];
-		unsigned int freq; /* remote cpu's operating frequency */
-	} id;
-};
-
-int softing_default_output(struct net_device *netdev);
-
-ktime_t softing_raw2ktime(struct softing *card, u32 raw);
-
-int softing_chip_poweron(struct softing *card);
-
-int softing_bootloader_command(struct softing *card, int16_t cmd,
-			       const char *msg);
-
-/* Load firmware after reset */
-int softing_load_fw(const char *file, struct softing *card,
-		    __iomem uint8_t *virt, unsigned int size, int offset);
-
-/* Load final application firmware after bootloader */
-int softing_load_app_fw(const char *file, struct softing *card);
-
-/*
- * enable or disable irq
- * only called with fw.lock locked
- */
-int softing_enable_irq(struct softing *card, int enable);
-
-/* start/stop 1 bus on card */
-int softing_startstop(struct net_device *netdev, int up);
-
-/* netif_rx() */
-int softing_netdev_rx(struct net_device *netdev, const struct can_frame *msg,
-		      ktime_t ktime);
-
-/* SOFTING DPRAM mappings */
-#define DPRAM_RX		0x0000
-	#define DPRAM_RX_SIZE	32
-	#define DPRAM_RX_CNT	16
-#define DPRAM_RX_RD		0x0201	/* uint8_t */
-#define DPRAM_RX_WR		0x0205	/* uint8_t */
-#define DPRAM_RX_LOST		0x0207	/* uint8_t */
-
-#define DPRAM_FCT_PARAM		0x0300	/* int16_t [20] */
-#define DPRAM_FCT_RESULT	0x0328	/* int16_t */
-#define DPRAM_FCT_HOST		0x032b	/* uint16_t */
-
-#define DPRAM_INFO_BUSSTATE	0x0331	/* uint16_t */
-#define DPRAM_INFO_BUSSTATE2	0x0335	/* uint16_t */
-#define DPRAM_INFO_ERRSTATE	0x0339	/* uint16_t */
-#define DPRAM_INFO_ERRSTATE2	0x033d	/* uint16_t */
-#define DPRAM_RESET		0x0341	/* uint16_t */
-#define DPRAM_CLR_RECV_FIFO	0x0345	/* uint16_t */
-#define DPRAM_RESET_TIME	0x034d	/* uint16_t */
-#define DPRAM_TIME		0x0350	/* uint64_t */
-#define DPRAM_WR_START		0x0358	/* uint8_t */
-#define DPRAM_WR_END		0x0359	/* uint8_t */
-#define DPRAM_RESET_RX_FIFO	0x0361	/* uint16_t */
-#define DPRAM_RESET_TX_FIFO	0x0364	/* uint8_t */
-#define DPRAM_READ_FIFO_LEVEL	0x0365	/* uint8_t */
-#define DPRAM_RX_FIFO_LEVEL	0x0366	/* uint16_t */
-#define DPRAM_TX_FIFO_LEVEL	0x0366	/* uint16_t */
-
-#define DPRAM_TX		0x0400	/* uint16_t */
-	#define DPRAM_TX_SIZE	16
-	#define DPRAM_TX_CNT	32
-#define DPRAM_TX_RD		0x0601	/* uint8_t */
-#define DPRAM_TX_WR		0x0605	/* uint8_t */
-
-#define DPRAM_COMMAND		0x07e0	/* uint16_t */
-#define DPRAM_RECEIPT		0x07f0	/* uint16_t */
-#define DPRAM_IRQ_TOHOST	0x07fe	/* uint8_t */
-#define DPRAM_IRQ_TOCARD	0x07ff	/* uint8_t */
-
-#define DPRAM_V2_RESET		0x0e00	/* uint8_t */
-#define DPRAM_V2_IRQ_TOHOST	0x0e02	/* uint8_t */
-
-#define TXMAX	(DPRAM_TX_CNT - 1)
-
-/* DPRAM return codes */
-#define RES_NONE	0
-#define RES_OK		1
-#define RES_NOK		2
-#define RES_UNKNOWN	3
-/* DPRAM flags */
-#define CMD_TX		0x01
-#define CMD_ACK		0x02
-#define CMD_XTD		0x04
-#define CMD_RTR		0x08
-#define CMD_ERR		0x10
-#define CMD_BUS2	0x80
-
-/* returned fifo entry bus state masks */
-#define SF_MASK_BUSOFF		0x80
-#define SF_MASK_EPASSIVE	0x60
-
-/* bus states */
-#define STATE_BUSOFF	2
-#define STATE_EPASSIVE	1
-#define STATE_EACTIVE	0
diff --git a/drivers/net/can/softing/softing_cs.c b/drivers/net/can/softing/softing_cs.c
deleted file mode 100644
index 3cea14cf055a..000000000000
--- a/drivers/net/can/softing/softing_cs.c
+++ /dev/null
@@ -1,335 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2008-2010
- *
- * - Kurt Van Dijck, EIA Electronics
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ds.h>
-
-#include "softing_platform.h"
-
-static int softingcs_index;
-static DEFINE_SPINLOCK(softingcs_index_lock);
-
-static int softingcs_reset(struct platform_device *pdev, int v);
-static int softingcs_enable_irq(struct platform_device *pdev, int v);
-
-/*
- * platform_data descriptions
- */
-#define MHZ (1000*1000)
-static const struct softing_platform_data softingcs_platform_data[] = {
-{
-	.name = "CANcard",
-	.manf = 0x0168, .prod = 0x001,
-	.generation = 1,
-	.nbus = 2,
-	.freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4,
-	.dpram_size = 0x0800,
-	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
-	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
-	.app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
-	.reset = softingcs_reset,
-	.enable_irq = softingcs_enable_irq,
-}, {
-	.name = "CANcard-NEC",
-	.manf = 0x0168, .prod = 0x002,
-	.generation = 1,
-	.nbus = 2,
-	.freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4,
-	.dpram_size = 0x0800,
-	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
-	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
-	.app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
-	.reset = softingcs_reset,
-	.enable_irq = softingcs_enable_irq,
-}, {
-	.name = "CANcard-SJA",
-	.manf = 0x0168, .prod = 0x004,
-	.generation = 1,
-	.nbus = 2,
-	.freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4,
-	.dpram_size = 0x0800,
-	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
-	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
-	.app = {0x0010, 0x0d0000, fw_dir "cansja.bin",},
-	.reset = softingcs_reset,
-	.enable_irq = softingcs_enable_irq,
-}, {
-	.name = "CANcard-2",
-	.manf = 0x0168, .prod = 0x005,
-	.generation = 2,
-	.nbus = 2,
-	.freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4,
-	.dpram_size = 0x1000,
-	.boot = {0x0000, 0x000000, fw_dir "bcard2.bin",},
-	.load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",},
-	.app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",},
-	.reset = softingcs_reset,
-	.enable_irq = NULL,
-}, {
-	.name = "Vector-CANcard",
-	.manf = 0x0168, .prod = 0x081,
-	.generation = 1,
-	.nbus = 2,
-	.freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4,
-	.dpram_size = 0x0800,
-	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
-	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
-	.app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
-	.reset = softingcs_reset,
-	.enable_irq = softingcs_enable_irq,
-}, {
-	.name = "Vector-CANcard-SJA",
-	.manf = 0x0168, .prod = 0x084,
-	.generation = 1,
-	.nbus = 2,
-	.freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4,
-	.dpram_size = 0x0800,
-	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
-	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
-	.app = {0x0010, 0x0d0000, fw_dir "cansja.bin",},
-	.reset = softingcs_reset,
-	.enable_irq = softingcs_enable_irq,
-}, {
-	.name = "Vector-CANcard-2",
-	.manf = 0x0168, .prod = 0x085,
-	.generation = 2,
-	.nbus = 2,
-	.freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4,
-	.dpram_size = 0x1000,
-	.boot = {0x0000, 0x000000, fw_dir "bcard2.bin",},
-	.load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",},
-	.app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",},
-	.reset = softingcs_reset,
-	.enable_irq = NULL,
-}, {
-	.name = "EDICcard-NEC",
-	.manf = 0x0168, .prod = 0x102,
-	.generation = 1,
-	.nbus = 2,
-	.freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4,
-	.dpram_size = 0x0800,
-	.boot = {0x0000, 0x000000, fw_dir "bcard.bin",},
-	.load = {0x0120, 0x00f600, fw_dir "ldcard.bin",},
-	.app = {0x0010, 0x0d0000, fw_dir "cancard.bin",},
-	.reset = softingcs_reset,
-	.enable_irq = softingcs_enable_irq,
-}, {
-	.name = "EDICcard-2",
-	.manf = 0x0168, .prod = 0x105,
-	.generation = 2,
-	.nbus = 2,
-	.freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4,
-	.dpram_size = 0x1000,
-	.boot = {0x0000, 0x000000, fw_dir "bcard2.bin",},
-	.load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",},
-	.app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",},
-	.reset = softingcs_reset,
-	.enable_irq = NULL,
-}, {
-	0, 0,
-},
-};
-
-MODULE_FIRMWARE(fw_dir "bcard.bin");
-MODULE_FIRMWARE(fw_dir "ldcard.bin");
-MODULE_FIRMWARE(fw_dir "cancard.bin");
-MODULE_FIRMWARE(fw_dir "cansja.bin");
-
-MODULE_FIRMWARE(fw_dir "bcard2.bin");
-MODULE_FIRMWARE(fw_dir "ldcard2.bin");
-MODULE_FIRMWARE(fw_dir "cancrd2.bin");
-
-static const struct softing_platform_data
-*softingcs_find_platform_data(unsigned int manf, unsigned int prod)
-{
-	const struct softing_platform_data *lp;
-
-	for (lp = softingcs_platform_data; lp->manf; ++lp) {
-		if ((lp->manf == manf) && (lp->prod == prod))
-			return lp;
-	}
-	return NULL;
-}
-
-/*
- * platformdata callbacks
- */
-static int softingcs_reset(struct platform_device *pdev, int v)
-{
-	struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent);
-
-	dev_dbg(&pdev->dev, "pcmcia config [2] %02x\n", v ? 0 : 0x20);
-	return pcmcia_write_config_byte(pcmcia, 2, v ? 0 : 0x20);
-}
-
-static int softingcs_enable_irq(struct platform_device *pdev, int v)
-{
-	struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent);
-
-	dev_dbg(&pdev->dev, "pcmcia config [0] %02x\n", v ? 0x60 : 0);
-	return pcmcia_write_config_byte(pcmcia, 0, v ? 0x60 : 0);
-}
-
-/*
- * pcmcia check
- */
-static int softingcs_probe_config(struct pcmcia_device *pcmcia, void *priv_data)
-{
-	struct softing_platform_data *pdat = priv_data;
-	struct resource *pres;
-	int memspeed = 0;
-
-	WARN_ON(!pdat);
-	pres = pcmcia->resource[PCMCIA_IOMEM_0];
-	if (resource_size(pres) < 0x1000)
-		return -ERANGE;
-
-	pres->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE;
-	if (pdat->generation < 2) {
-		pres->flags |= WIN_USE_WAIT | WIN_DATA_WIDTH_8;
-		memspeed = 3;
-	} else {
-		pres->flags |= WIN_DATA_WIDTH_16;
-	}
-	return pcmcia_request_window(pcmcia, pres, memspeed);
-}
-
-static void softingcs_remove(struct pcmcia_device *pcmcia)
-{
-	struct platform_device *pdev = pcmcia->priv;
-
-	/* free bits */
-	platform_device_unregister(pdev);
-	/* release pcmcia stuff */
-	pcmcia_disable_device(pcmcia);
-}
-
-/*
- * platform_device wrapper
- * pdev->resource has 2 entries: io & irq
- */
-static void softingcs_pdev_release(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	kfree(pdev);
-}
-
-static int softingcs_probe(struct pcmcia_device *pcmcia)
-{
-	int ret;
-	struct platform_device *pdev;
-	const struct softing_platform_data *pdat;
-	struct resource *pres;
-	struct dev {
-		struct platform_device pdev;
-		struct resource res[2];
-	} *dev;
-
-	/* find matching platform_data */
-	pdat = softingcs_find_platform_data(pcmcia->manf_id, pcmcia->card_id);
-	if (!pdat)
-		return -ENOTTY;
-
-	/* setup pcmcia device */
-	pcmcia->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IOMEM |
-		CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;
-	ret = pcmcia_loop_config(pcmcia, softingcs_probe_config, (void *)pdat);
-	if (ret)
-		goto pcmcia_failed;
-
-	ret = pcmcia_enable_device(pcmcia);
-	if (ret < 0)
-		goto pcmcia_failed;
-
-	pres = pcmcia->resource[PCMCIA_IOMEM_0];
-	if (!pres) {
-		ret = -EBADF;
-		goto pcmcia_bad;
-	}
-
-	/* create softing platform device */
-	dev = kzalloc_obj(*dev);
-	if (!dev) {
-		ret = -ENOMEM;
-		goto mem_failed;
-	}
-	dev->pdev.resource = dev->res;
-	dev->pdev.num_resources = ARRAY_SIZE(dev->res);
-	dev->pdev.dev.release = softingcs_pdev_release;
-
-	pdev = &dev->pdev;
-	pdev->dev.platform_data = (void *)pdat;
-	pdev->dev.parent = &pcmcia->dev;
-	pcmcia->priv = pdev;
-
-	/* platform device resources */
-	pdev->resource[0].flags = IORESOURCE_MEM;
-	pdev->resource[0].start = pres->start;
-	pdev->resource[0].end = pres->end;
-
-	pdev->resource[1].flags = IORESOURCE_IRQ;
-	pdev->resource[1].start = pcmcia->irq;
-	pdev->resource[1].end = pdev->resource[1].start;
-
-	/* platform device setup */
-	spin_lock(&softingcs_index_lock);
-	pdev->id = softingcs_index++;
-	spin_unlock(&softingcs_index_lock);
-	pdev->name = "softing";
-	dev_set_name(&pdev->dev, "softingcs.%i", pdev->id);
-	ret = platform_device_register(pdev);
-	if (ret < 0)
-		goto platform_failed;
-
-	dev_info(&pcmcia->dev, "created %s\n", dev_name(&pdev->dev));
-	return 0;
-
-platform_failed:
-	platform_device_put(pdev);
-mem_failed:
-pcmcia_bad:
-pcmcia_failed:
-	pcmcia_disable_device(pcmcia);
-	pcmcia->priv = NULL;
-	return ret;
-}
-
-static const struct pcmcia_device_id softingcs_ids[] = {
-	/* softing */
-	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0001),
-	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0002),
-	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0004),
-	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0005),
-	/* vector, manufacturer? */
-	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0081),
-	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0084),
-	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0085),
-	/* EDIC */
-	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0102),
-	PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0105),
-	PCMCIA_DEVICE_NULL,
-};
-
-MODULE_DEVICE_TABLE(pcmcia, softingcs_ids);
-
-static struct pcmcia_driver softingcs_driver = {
-	.owner		= THIS_MODULE,
-	.name		= "softingcs",
-	.id_table	= softingcs_ids,
-	.probe		= softingcs_probe,
-	.remove		= softingcs_remove,
-};
-
-module_pcmcia_driver(softingcs_driver);
-
-MODULE_DESCRIPTION("softing CANcard driver"
-		", links PCMCIA card to softing driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/can/softing/softing_fw.c b/drivers/net/can/softing/softing_fw.c
deleted file mode 100644
index 282570daf3ef..000000000000
--- a/drivers/net/can/softing/softing_fw.c
+++ /dev/null
@@ -1,700 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2008-2010
- *
- * - Kurt Van Dijck, EIA Electronics
- */
-
-#include <linux/firmware.h>
-#include <linux/sched/signal.h>
-#include <asm/div64.h>
-#include <asm/io.h>
-
-#include "softing.h"
-
-/*
- * low level DPRAM command.
- * Make sure that card->dpram[DPRAM_FCT_HOST] is preset
- */
-static int _softing_fct_cmd(struct softing *card, int16_t cmd, uint16_t vector,
-		const char *msg)
-{
-	int ret;
-	unsigned long stamp;
-
-	iowrite16(cmd, &card->dpram[DPRAM_FCT_PARAM]);
-	iowrite8(vector >> 8, &card->dpram[DPRAM_FCT_HOST + 1]);
-	iowrite8(vector, &card->dpram[DPRAM_FCT_HOST]);
-	/* be sure to flush this to the card */
-	wmb();
-	stamp = jiffies + 1 * HZ;
-	/* wait for card */
-	do {
-		/* DPRAM_FCT_HOST is _not_ aligned */
-		ret = ioread8(&card->dpram[DPRAM_FCT_HOST]) +
-			(ioread8(&card->dpram[DPRAM_FCT_HOST + 1]) << 8);
-		/* don't have any cached variables */
-		rmb();
-		if (ret == RES_OK)
-			/* read return-value now */
-			return ioread16(&card->dpram[DPRAM_FCT_RESULT]);
-
-		if ((ret != vector) || time_after(jiffies, stamp))
-			break;
-		/* process context => relax */
-		usleep_range(500, 10000);
-	} while (1);
-
-	ret = (ret == RES_NONE) ? -ETIMEDOUT : -ECANCELED;
-	dev_alert(&card->pdev->dev, "firmware %s failed (%i)\n", msg, ret);
-	return ret;
-}
-
-static int softing_fct_cmd(struct softing *card, int16_t cmd, const char *msg)
-{
-	int ret;
-
-	ret = _softing_fct_cmd(card, cmd, 0, msg);
-	if (ret > 0) {
-		dev_alert(&card->pdev->dev, "%s returned %u\n", msg, ret);
-		ret = -EIO;
-	}
-	return ret;
-}
-
-int softing_bootloader_command(struct softing *card, int16_t cmd,
-		const char *msg)
-{
-	int ret;
-	unsigned long stamp;
-
-	iowrite16(RES_NONE, &card->dpram[DPRAM_RECEIPT]);
-	iowrite16(cmd, &card->dpram[DPRAM_COMMAND]);
-	/* be sure to flush this to the card */
-	wmb();
-	stamp = jiffies + 3 * HZ;
-	/* wait for card */
-	do {
-		ret = ioread16(&card->dpram[DPRAM_RECEIPT]);
-		/* don't have any cached variables */
-		rmb();
-		if (ret == RES_OK)
-			return 0;
-		if (time_after(jiffies, stamp))
-			break;
-		/* process context => relax */
-		usleep_range(500, 10000);
-	} while (!signal_pending(current));
-
-	ret = (ret == RES_NONE) ? -ETIMEDOUT : -ECANCELED;
-	dev_alert(&card->pdev->dev, "bootloader %s failed (%i)\n", msg, ret);
-	return ret;
-}
-
-static int fw_parse(const u8 **pmem, const u8 *limit, u16 *ptype,
-		    u32 *paddr, u16 *plen, const u8 **pdat)
-{
-	uint16_t checksum[2];
-	const u8 *mem;
-	const u8 *record_end;
-
-	/*
-	 * firmware records are a binary, unaligned stream composed of:
-	 * uint16_t type;
-	 * uint32_t addr;
-	 * uint16_t len;
-	 * uint8_t dat[len];
-	 * uint16_t checksum;
-	 * all values in little endian.
-	 * We could define a struct for this, with __attribute__((packed)),
-	 * but would that solve the alignment in _all_ cases (cfr. the
-	 * struct itself may be an odd address)?
-	 *
-	 * I chose to use leXX_to_cpup() since this solves both
-	 * endianness & alignment.
-	 */
-	mem = *pmem;
-	/* A record needs an 8-byte prefix and a 2-byte checksum. */
-	if (mem > limit || limit - mem < 10)
-		return -EINVAL;
-
-	*ptype = le16_to_cpup((void *)&mem[0]);
-	*paddr = le32_to_cpup((void *)&mem[2]);
-	*plen = le16_to_cpup((void *)&mem[6]);
-	if (*plen > limit - mem - 10)
-		return -EINVAL;
-
-	*pdat = &mem[8];
-	/* verify checksum */
-	record_end = &mem[8 + *plen];
-	checksum[0] = le16_to_cpup((void *)record_end);
-	for (checksum[1] = 0; mem < record_end; ++mem)
-		checksum[1] += *mem;
-	if (checksum[0] != checksum[1])
-		return -EINVAL;
-	/* increment */
-	*pmem += 10 + *plen;
-	return 0;
-}
-
-int softing_load_fw(const char *file, struct softing *card,
-		__iomem uint8_t *dpram, unsigned int size, int offset)
-{
-	const struct firmware *fw;
-	int ret;
-	const uint8_t *mem, *end, *dat;
-	uint16_t type, len;
-	uint32_t addr;
-	uint8_t *buf = NULL, *new_buf;
-	s64 dpram_offset;
-	int buflen = 0;
-	int8_t type_end = 0;
-
-	ret = request_firmware(&fw, file, &card->pdev->dev);
-	if (ret < 0)
-		return ret;
-	dev_dbg(&card->pdev->dev, "%s, firmware(%s) got %u bytes"
-		", offset %c0x%04x\n",
-		card->pdat->name, file, (unsigned int)fw->size,
-		(offset >= 0) ? '+' : '-', (unsigned int)abs(offset));
-	/* parse the firmware */
-	mem = fw->data;
-	end = &mem[fw->size];
-	/* look for header record */
-	ret = fw_parse(&mem, end, &type, &addr, &len, &dat);
-	if (ret < 0)
-		goto failed;
-	if (type != 0xffff)
-		goto failed;
-	if (strncmp("Structured Binary Format, Softing GmbH" , dat, len)) {
-		ret = -EINVAL;
-		goto failed;
-	}
-	/* ok, we had a header */
-	while (mem < end) {
-		ret = fw_parse(&mem, end, &type, &addr, &len, &dat);
-		if (ret < 0)
-			goto failed;
-		if (type == 3) {
-			/* start address, not used here */
-			continue;
-		} else if (type == 1) {
-			/* eof */
-			type_end = 1;
-			break;
-		} else if (type != 0) {
-			ret = -EINVAL;
-			goto failed;
-		}
-
-		dpram_offset = (s64)addr + offset;
-		if (dpram_offset < 0 || dpram_offset > size ||
-		    len > size - dpram_offset) {
-			ret = -EINVAL;
-			goto failed;
-		}
-		memcpy_toio(&dpram[dpram_offset], dat, len);
-		/* be sure to flush caches from IO space */
-		mb();
-		if (len > buflen) {
-			/* align buflen */
-			buflen = (len + (1024-1)) & ~(1024-1);
-			new_buf = krealloc(buf, buflen, GFP_KERNEL);
-			if (!new_buf) {
-				ret = -ENOMEM;
-				goto failed;
-			}
-			buf = new_buf;
-		}
-		/* verify record data */
-		memcpy_fromio(buf, &dpram[dpram_offset], len);
-		if (memcmp(buf, dat, len)) {
-			/* is not ok */
-			dev_alert(&card->pdev->dev, "DPRAM readback failed\n");
-			ret = -EIO;
-			goto failed;
-		}
-	}
-	if (!type_end)
-		/* no end record seen */
-		goto failed;
-	ret = 0;
-failed:
-	kfree(buf);
-	release_firmware(fw);
-	if (ret < 0)
-		dev_info(&card->pdev->dev, "firmware %s failed\n", file);
-	return ret;
-}
-
-int softing_load_app_fw(const char *file, struct softing *card)
-{
-	const struct firmware *fw;
-	const uint8_t *mem, *end, *dat;
-	int ret, j;
-	uint16_t type, len;
-	uint32_t addr, start_addr = 0;
-	unsigned int sum, rx_sum;
-	int8_t type_end = 0, type_entrypoint = 0;
-
-	ret = request_firmware(&fw, file, &card->pdev->dev);
-	if (ret) {
-		dev_alert(&card->pdev->dev, "request_firmware(%s) got %i\n",
-			file, ret);
-		return ret;
-	}
-	dev_dbg(&card->pdev->dev, "firmware(%s) got %lu bytes\n",
-		file, (unsigned long)fw->size);
-	/* parse the firmware */
-	mem = fw->data;
-	end = &mem[fw->size];
-	/* look for header record */
-	ret = fw_parse(&mem, end, &type, &addr, &len, &dat);
-	if (ret)
-		goto failed;
-	ret = -EINVAL;
-	if (type != 0xffff) {
-		dev_alert(&card->pdev->dev, "firmware starts with type 0x%x\n",
-			type);
-		goto failed;
-	}
-	if (strncmp("Structured Binary Format, Softing GmbH", dat, len)) {
-		dev_alert(&card->pdev->dev, "firmware string '%.*s' fault\n",
-				len, dat);
-		goto failed;
-	}
-	/* ok, we had a header */
-	while (mem < end) {
-		ret = fw_parse(&mem, end, &type, &addr, &len, &dat);
-		if (ret)
-			goto failed;
-
-		if (type == 3) {
-			/* start address */
-			start_addr = addr;
-			type_entrypoint = 1;
-			continue;
-		} else if (type == 1) {
-			/* eof */
-			type_end = 1;
-			break;
-		} else if (type != 0) {
-			dev_alert(&card->pdev->dev,
-					"unknown record type 0x%04x\n", type);
-			ret = -EINVAL;
-			goto failed;
-		}
-
-		/* regular data */
-		for (sum = 0, j = 0; j < len; ++j)
-			sum += dat[j];
-		/* work in 16bit (target) */
-		sum &= 0xffff;
-
-		if (card->pdat->app.offs > card->dpram_size ||
-		    len > card->dpram_size - card->pdat->app.offs) {
-			ret = -EINVAL;
-			goto failed;
-		}
-
-		memcpy_toio(&card->dpram[card->pdat->app.offs], dat, len);
-		iowrite32(card->pdat->app.offs + card->pdat->app.addr,
-				&card->dpram[DPRAM_COMMAND + 2]);
-		iowrite32(addr, &card->dpram[DPRAM_COMMAND + 6]);
-		iowrite16(len, &card->dpram[DPRAM_COMMAND + 10]);
-		iowrite8(1, &card->dpram[DPRAM_COMMAND + 12]);
-		ret = softing_bootloader_command(card, 1, "loading app.");
-		if (ret < 0)
-			goto failed;
-		/* verify checksum */
-		rx_sum = ioread16(&card->dpram[DPRAM_RECEIPT + 2]);
-		if (rx_sum != sum) {
-			dev_alert(&card->pdev->dev, "SRAM seems to be damaged"
-				", wanted 0x%04x, got 0x%04x\n", sum, rx_sum);
-			ret = -EIO;
-			goto failed;
-		}
-	}
-	if (!type_end || !type_entrypoint)
-		goto failed;
-	/* start application in card */
-	iowrite32(start_addr, &card->dpram[DPRAM_COMMAND + 2]);
-	iowrite8(1, &card->dpram[DPRAM_COMMAND + 6]);
-	ret = softing_bootloader_command(card, 3, "start app.");
-	if (ret < 0)
-		goto failed;
-	ret = 0;
-failed:
-	release_firmware(fw);
-	if (ret < 0)
-		dev_info(&card->pdev->dev, "firmware %s failed\n", file);
-	return ret;
-}
-
-static int softing_reset_chip(struct softing *card)
-{
-	int ret;
-
-	do {
-		/* reset chip */
-		iowrite8(0, &card->dpram[DPRAM_RESET_RX_FIFO]);
-		iowrite8(0, &card->dpram[DPRAM_RESET_RX_FIFO+1]);
-		iowrite8(1, &card->dpram[DPRAM_RESET]);
-		iowrite8(0, &card->dpram[DPRAM_RESET+1]);
-
-		ret = softing_fct_cmd(card, 0, "reset_can");
-		if (!ret)
-			break;
-		if (signal_pending(current))
-			/* don't wait any longer */
-			break;
-	} while (1);
-	card->tx.pending = 0;
-	return ret;
-}
-
-int softing_chip_poweron(struct softing *card)
-{
-	int ret;
-	/* sync */
-	ret = _softing_fct_cmd(card, 99, 0x55, "sync-a");
-	if (ret < 0)
-		goto failed;
-
-	ret = _softing_fct_cmd(card, 99, 0xaa, "sync-b");
-	if (ret < 0)
-		goto failed;
-
-	ret = softing_reset_chip(card);
-	if (ret < 0)
-		goto failed;
-	/* get_serial */
-	ret = softing_fct_cmd(card, 43, "get_serial_number");
-	if (ret < 0)
-		goto failed;
-	card->id.serial = ioread32(&card->dpram[DPRAM_FCT_PARAM]);
-	/* get_version */
-	ret = softing_fct_cmd(card, 12, "get_version");
-	if (ret < 0)
-		goto failed;
-	card->id.fw_version = ioread16(&card->dpram[DPRAM_FCT_PARAM + 2]);
-	card->id.hw_version = ioread16(&card->dpram[DPRAM_FCT_PARAM + 4]);
-	card->id.license = ioread16(&card->dpram[DPRAM_FCT_PARAM + 6]);
-	card->id.chip[0] = ioread16(&card->dpram[DPRAM_FCT_PARAM + 8]);
-	card->id.chip[1] = ioread16(&card->dpram[DPRAM_FCT_PARAM + 10]);
-	return 0;
-failed:
-	return ret;
-}
-
-static void softing_initialize_timestamp(struct softing *card)
-{
-	uint64_t ovf;
-
-	card->ts_ref = ktime_get();
-
-	/* 16MHz is the reference */
-	ovf = 0x100000000ULL * 16;
-	do_div(ovf, card->pdat->freq ?: 16);
-
-	card->ts_overflow = ktime_add_us(0, ovf);
-}
-
-ktime_t softing_raw2ktime(struct softing *card, u32 raw)
-{
-	uint64_t rawl;
-	ktime_t now, real_offset;
-	ktime_t target;
-	ktime_t tmp;
-
-	now = ktime_get();
-	real_offset = ktime_sub(ktime_get_real(), now);
-
-	/* find nsec from card */
-	rawl = raw * 16;
-	do_div(rawl, card->pdat->freq ?: 16);
-	target = ktime_add_us(card->ts_ref, rawl);
-	/* test for overflows */
-	tmp = ktime_add(target, card->ts_overflow);
-	while (unlikely(ktime_to_ns(tmp) > ktime_to_ns(now))) {
-		card->ts_ref = ktime_add(card->ts_ref, card->ts_overflow);
-		target = tmp;
-		tmp = ktime_add(target, card->ts_overflow);
-	}
-	return ktime_add(target, real_offset);
-}
-
-static inline int softing_error_reporting(struct net_device *netdev)
-{
-	struct softing_priv *priv = netdev_priv(netdev);
-
-	return (priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
-		? 1 : 0;
-}
-
-int softing_startstop(struct net_device *dev, int up)
-{
-	int ret;
-	struct softing *card;
-	struct softing_priv *priv;
-	struct net_device *netdev;
-	int bus_bitmask_start;
-	int j, error_reporting;
-	struct can_frame msg;
-	const struct can_bittiming *bt;
-
-	priv = netdev_priv(dev);
-	card = priv->card;
-
-	if (!card->fw.up)
-		return -EIO;
-
-	ret = mutex_lock_interruptible(&card->fw.lock);
-	if (ret)
-		return ret;
-
-	bus_bitmask_start = 0;
-	if (up)
-		/* prepare to start this bus as well */
-		bus_bitmask_start |= (1 << priv->index);
-	/* bring netdevs down */
-	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {
-		netdev = card->net[j];
-		if (!netdev)
-			continue;
-		priv = netdev_priv(netdev);
-
-		if (dev != netdev)
-			netif_stop_queue(netdev);
-
-		if (netif_running(netdev)) {
-			if (dev != netdev)
-				bus_bitmask_start |= (1 << j);
-			priv->tx.pending = 0;
-			priv->tx.echo_put = 0;
-			priv->tx.echo_get = 0;
-			/*
-			 * this bus' may just have called open_candev()
-			 * which is rather stupid to call close_candev()
-			 * already
-			 * but we may come here from busoff recovery too
-			 * in which case the echo_skb _needs_ flushing too.
-			 * just be sure to call open_candev() again
-			 */
-			close_candev(netdev);
-		}
-		priv->can.state = CAN_STATE_STOPPED;
-	}
-	card->tx.pending = 0;
-
-	softing_enable_irq(card, 0);
-	ret = softing_reset_chip(card);
-	if (ret)
-		goto failed;
-	if (!bus_bitmask_start)
-		/* no buses to be brought up */
-		goto card_done;
-
-	if ((bus_bitmask_start & 1) && (bus_bitmask_start & 2)
-			&& (softing_error_reporting(card->net[0])
-				!= softing_error_reporting(card->net[1]))) {
-		dev_alert(&card->pdev->dev,
-				"err_reporting flag differs for buses\n");
-		goto invalid;
-	}
-	error_reporting = 0;
-	if (bus_bitmask_start & 1) {
-		netdev = card->net[0];
-		priv = netdev_priv(netdev);
-		error_reporting += softing_error_reporting(netdev);
-		/* init chip 1 */
-		bt = &priv->can.bittiming;
-		iowrite16(bt->brp, &card->dpram[DPRAM_FCT_PARAM + 2]);
-		iowrite16(bt->sjw, &card->dpram[DPRAM_FCT_PARAM + 4]);
-		iowrite16(bt->phase_seg1 + bt->prop_seg,
-				&card->dpram[DPRAM_FCT_PARAM + 6]);
-		iowrite16(bt->phase_seg2, &card->dpram[DPRAM_FCT_PARAM + 8]);
-		iowrite16((priv->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES) ? 1 : 0,
-				&card->dpram[DPRAM_FCT_PARAM + 10]);
-		ret = softing_fct_cmd(card, 1, "initialize_chip[0]");
-		if (ret < 0)
-			goto failed;
-		/* set mode */
-		iowrite16(0, &card->dpram[DPRAM_FCT_PARAM + 2]);
-		iowrite16(0, &card->dpram[DPRAM_FCT_PARAM + 4]);
-		ret = softing_fct_cmd(card, 3, "set_mode[0]");
-		if (ret < 0)
-			goto failed;
-		/* set filter */
-		/* 11bit id & mask */
-		iowrite16(0x0000, &card->dpram[DPRAM_FCT_PARAM + 2]);
-		iowrite16(0x07ff, &card->dpram[DPRAM_FCT_PARAM + 4]);
-		/* 29bit id.lo & mask.lo & id.hi & mask.hi */
-		iowrite16(0x0000, &card->dpram[DPRAM_FCT_PARAM + 6]);
-		iowrite16(0xffff, &card->dpram[DPRAM_FCT_PARAM + 8]);
-		iowrite16(0x0000, &card->dpram[DPRAM_FCT_PARAM + 10]);
-		iowrite16(0x1fff, &card->dpram[DPRAM_FCT_PARAM + 12]);
-		ret = softing_fct_cmd(card, 7, "set_filter[0]");
-		if (ret < 0)
-			goto failed;
-		/* set output control */
-		iowrite16(priv->output, &card->dpram[DPRAM_FCT_PARAM + 2]);
-		ret = softing_fct_cmd(card, 5, "set_output[0]");
-		if (ret < 0)
-			goto failed;
-	}
-	if (bus_bitmask_start & 2) {
-		netdev = card->net[1];
-		priv = netdev_priv(netdev);
-		error_reporting += softing_error_reporting(netdev);
-		/* init chip2 */
-		bt = &priv->can.bittiming;
-		iowrite16(bt->brp, &card->dpram[DPRAM_FCT_PARAM + 2]);
-		iowrite16(bt->sjw, &card->dpram[DPRAM_FCT_PARAM + 4]);
-		iowrite16(bt->phase_seg1 + bt->prop_seg,
-				&card->dpram[DPRAM_FCT_PARAM + 6]);
-		iowrite16(bt->phase_seg2, &card->dpram[DPRAM_FCT_PARAM + 8]);
-		iowrite16((priv->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES) ? 1 : 0,
-				&card->dpram[DPRAM_FCT_PARAM + 10]);
-		ret = softing_fct_cmd(card, 2, "initialize_chip[1]");
-		if (ret < 0)
-			goto failed;
-		/* set mode2 */
-		iowrite16(0, &card->dpram[DPRAM_FCT_PARAM + 2]);
-		iowrite16(0, &card->dpram[DPRAM_FCT_PARAM + 4]);
-		ret = softing_fct_cmd(card, 4, "set_mode[1]");
-		if (ret < 0)
-			goto failed;
-		/* set filter2 */
-		/* 11bit id & mask */
-		iowrite16(0x0000, &card->dpram[DPRAM_FCT_PARAM + 2]);
-		iowrite16(0x07ff, &card->dpram[DPRAM_FCT_PARAM + 4]);
-		/* 29bit id.lo & mask.lo & id.hi & mask.hi */
-		iowrite16(0x0000, &card->dpram[DPRAM_FCT_PARAM + 6]);
-		iowrite16(0xffff, &card->dpram[DPRAM_FCT_PARAM + 8]);
-		iowrite16(0x0000, &card->dpram[DPRAM_FCT_PARAM + 10]);
-		iowrite16(0x1fff, &card->dpram[DPRAM_FCT_PARAM + 12]);
-		ret = softing_fct_cmd(card, 8, "set_filter[1]");
-		if (ret < 0)
-			goto failed;
-		/* set output control2 */
-		iowrite16(priv->output, &card->dpram[DPRAM_FCT_PARAM + 2]);
-		ret = softing_fct_cmd(card, 6, "set_output[1]");
-		if (ret < 0)
-			goto failed;
-	}
-
-	/* enable_error_frame
-	 *
-	 * Error reporting is switched off at the moment since
-	 * the receiving of them is not yet 100% verified
-	 * This should be enabled sooner or later
-	 */
-	if (0 && error_reporting) {
-		ret = softing_fct_cmd(card, 51, "enable_error_frame");
-		if (ret < 0)
-			goto failed;
-	}
-
-	/* initialize interface */
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 2]);
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 4]);
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 6]);
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 8]);
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 10]);
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 12]);
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 14]);
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 16]);
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 18]);
-	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 20]);
-	ret = softing_fct_cmd(card, 17, "initialize_interface");
-	if (ret < 0)
-		goto failed;
-	/* enable_fifo */
-	ret = softing_fct_cmd(card, 36, "enable_fifo");
-	if (ret < 0)
-		goto failed;
-	/* enable fifo tx ack */
-	ret = softing_fct_cmd(card, 13, "fifo_tx_ack[0]");
-	if (ret < 0)
-		goto failed;
-	/* enable fifo tx ack2 */
-	ret = softing_fct_cmd(card, 14, "fifo_tx_ack[1]");
-	if (ret < 0)
-		goto failed;
-	/* start_chip */
-	ret = softing_fct_cmd(card, 11, "start_chip");
-	if (ret < 0)
-		goto failed;
-	iowrite8(0, &card->dpram[DPRAM_INFO_BUSSTATE]);
-	iowrite8(0, &card->dpram[DPRAM_INFO_BUSSTATE2]);
-	if (card->pdat->generation < 2) {
-		iowrite8(0, &card->dpram[DPRAM_V2_IRQ_TOHOST]);
-		/* flush the DPRAM caches */
-		wmb();
-	}
-
-	softing_initialize_timestamp(card);
-
-	/*
-	 * do socketcan notifications/status changes
-	 * from here, no errors should occur, or the failed: part
-	 * must be reviewed
-	 */
-	memset(&msg, 0, sizeof(msg));
-	msg.can_id = CAN_ERR_FLAG | CAN_ERR_RESTARTED;
-	msg.len = CAN_ERR_DLC;
-	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {
-		if (!(bus_bitmask_start & (1 << j)))
-			continue;
-		netdev = card->net[j];
-		if (!netdev)
-			continue;
-		priv = netdev_priv(netdev);
-		priv->can.state = CAN_STATE_ERROR_ACTIVE;
-		open_candev(netdev);
-		if (dev != netdev) {
-			/* notify other buses on the restart */
-			softing_netdev_rx(netdev, &msg, 0);
-			++priv->can.can_stats.restarts;
-		}
-		netif_wake_queue(netdev);
-	}
-
-	/* enable interrupts */
-	ret = softing_enable_irq(card, 1);
-	if (ret)
-		goto failed;
-card_done:
-	mutex_unlock(&card->fw.lock);
-	return 0;
-invalid:
-	ret = -EINVAL;
-failed:
-	softing_enable_irq(card, 0);
-	softing_reset_chip(card);
-	mutex_unlock(&card->fw.lock);
-	/* bring all other interfaces down */
-	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {
-		netdev = card->net[j];
-		if (!netdev)
-			continue;
-		dev_close(netdev);
-	}
-	return ret;
-}
-
-int softing_default_output(struct net_device *netdev)
-{
-	struct softing_priv *priv = netdev_priv(netdev);
-	struct softing *card = priv->card;
-
-	switch (priv->chip) {
-	case 1000:
-		return (card->pdat->generation < 2) ? 0xfb : 0xfa;
-	case 5:
-		return 0x60;
-	default:
-		return 0x40;
-	}
-}
diff --git a/drivers/net/can/softing/softing_main.c b/drivers/net/can/softing/softing_main.c
deleted file mode 100644
index 519ab3097f86..000000000000
--- a/drivers/net/can/softing/softing_main.c
+++ /dev/null
@@ -1,864 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2008-2010
- *
- * - Kurt Van Dijck, EIA Electronics
- */
-
-#include <linux/ethtool.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-
-#include "softing.h"
-
-#define TX_ECHO_SKB_MAX (((TXMAX+1)/2)-1)
-
-/*
- * test is a specific CAN netdev
- * is online (ie. up 'n running, not sleeping, not busoff
- */
-static inline int canif_is_active(struct net_device *netdev)
-{
-	struct can_priv *can = netdev_priv(netdev);
-
-	if (!netif_running(netdev))
-		return 0;
-	return (can->state <= CAN_STATE_ERROR_PASSIVE);
-}
-
-/* reset DPRAM */
-static inline void softing_set_reset_dpram(struct softing *card)
-{
-	if (card->pdat->generation >= 2) {
-		spin_lock_bh(&card->spin);
-		iowrite8(ioread8(&card->dpram[DPRAM_V2_RESET]) & ~1,
-				&card->dpram[DPRAM_V2_RESET]);
-		spin_unlock_bh(&card->spin);
-	}
-}
-
-static inline void softing_clr_reset_dpram(struct softing *card)
-{
-	if (card->pdat->generation >= 2) {
-		spin_lock_bh(&card->spin);
-		iowrite8(ioread8(&card->dpram[DPRAM_V2_RESET]) | 1,
-				&card->dpram[DPRAM_V2_RESET]);
-		spin_unlock_bh(&card->spin);
-	}
-}
-
-/* trigger the tx queue-ing */
-static netdev_tx_t softing_netdev_start_xmit(struct sk_buff *skb,
-		struct net_device *dev)
-{
-	struct softing_priv *priv = netdev_priv(dev);
-	struct softing *card = priv->card;
-	int ret;
-	uint8_t *ptr;
-	uint8_t fifo_wr, fifo_rd;
-	struct can_frame *cf = (struct can_frame *)skb->data;
-	uint8_t buf[DPRAM_TX_SIZE];
-
-	if (can_dev_dropped_skb(dev, skb))
-		return NETDEV_TX_OK;
-
-	spin_lock(&card->spin);
-
-	ret = NETDEV_TX_BUSY;
-	if (!card->fw.up ||
-			(card->tx.pending >= TXMAX) ||
-			(priv->tx.pending >= TX_ECHO_SKB_MAX))
-		goto xmit_done;
-	fifo_wr = ioread8(&card->dpram[DPRAM_TX_WR]);
-	fifo_rd = ioread8(&card->dpram[DPRAM_TX_RD]);
-	if (fifo_wr == fifo_rd)
-		/* fifo full */
-		goto xmit_done;
-	memset(buf, 0, sizeof(buf));
-	ptr = buf;
-	*ptr = CMD_TX;
-	if (cf->can_id & CAN_RTR_FLAG)
-		*ptr |= CMD_RTR;
-	if (cf->can_id & CAN_EFF_FLAG)
-		*ptr |= CMD_XTD;
-	if (priv->index)
-		*ptr |= CMD_BUS2;
-	++ptr;
-	*ptr++ = cf->len;
-	*ptr++ = (cf->can_id >> 0);
-	*ptr++ = (cf->can_id >> 8);
-	if (cf->can_id & CAN_EFF_FLAG) {
-		*ptr++ = (cf->can_id >> 16);
-		*ptr++ = (cf->can_id >> 24);
-	} else {
-		/* increment 1, not 2 as you might think */
-		ptr += 1;
-	}
-	if (!(cf->can_id & CAN_RTR_FLAG))
-		memcpy(ptr, &cf->data[0], cf->len);
-	memcpy_toio(&card->dpram[DPRAM_TX + DPRAM_TX_SIZE * fifo_wr],
-			buf, DPRAM_TX_SIZE);
-	if (++fifo_wr >= DPRAM_TX_CNT)
-		fifo_wr = 0;
-	iowrite8(fifo_wr, &card->dpram[DPRAM_TX_WR]);
-	card->tx.last_bus = priv->index;
-	++card->tx.pending;
-	++priv->tx.pending;
-	can_put_echo_skb(skb, dev, priv->tx.echo_put, 0);
-	++priv->tx.echo_put;
-	if (priv->tx.echo_put >= TX_ECHO_SKB_MAX)
-		priv->tx.echo_put = 0;
-	/* can_put_echo_skb() saves the skb, safe to return TX_OK */
-	ret = NETDEV_TX_OK;
-xmit_done:
-	spin_unlock(&card->spin);
-	if (card->tx.pending >= TXMAX) {
-		int j;
-		for (j = 0; j < ARRAY_SIZE(card->net); ++j) {
-			if (card->net[j])
-				netif_stop_queue(card->net[j]);
-		}
-	}
-	if (ret != NETDEV_TX_OK)
-		netif_stop_queue(dev);
-
-	return ret;
-}
-
-/*
- * shortcut for skb delivery
- */
-int softing_netdev_rx(struct net_device *netdev, const struct can_frame *msg,
-		ktime_t ktime)
-{
-	struct sk_buff *skb;
-	struct can_frame *cf;
-
-	skb = alloc_can_skb(netdev, &cf);
-	if (!skb)
-		return -ENOMEM;
-	memcpy(cf, msg, sizeof(*msg));
-	skb->tstamp = ktime;
-	return netif_rx(skb);
-}
-
-/*
- * softing_handle_1
- * pop 1 entry from the DPRAM queue, and process
- */
-static int softing_handle_1(struct softing *card)
-{
-	struct net_device *netdev;
-	struct softing_priv *priv;
-	ktime_t ktime;
-	struct can_frame msg;
-	int cnt = 0, lost_msg;
-	uint8_t fifo_rd, fifo_wr, cmd;
-	uint8_t *ptr;
-	uint32_t tmp_u32;
-	uint8_t buf[DPRAM_RX_SIZE];
-
-	memset(&msg, 0, sizeof(msg));
-	/* test for lost msgs */
-	lost_msg = ioread8(&card->dpram[DPRAM_RX_LOST]);
-	if (lost_msg) {
-		int j;
-		/* reset condition */
-		iowrite8(0, &card->dpram[DPRAM_RX_LOST]);
-		/* prepare msg */
-		msg.can_id = CAN_ERR_FLAG | CAN_ERR_CRTL;
-		msg.len = CAN_ERR_DLC;
-		msg.data[1] = CAN_ERR_CRTL_RX_OVERFLOW;
-		/*
-		 * service to all buses, we don't know which it was applicable
-		 * but only service buses that are online
-		 */
-		for (j = 0; j < ARRAY_SIZE(card->net); ++j) {
-			netdev = card->net[j];
-			if (!netdev)
-				continue;
-			if (!canif_is_active(netdev))
-				/* a dead bus has no overflows */
-				continue;
-			++netdev->stats.rx_over_errors;
-			softing_netdev_rx(netdev, &msg, 0);
-		}
-		/* prepare for other use */
-		memset(&msg, 0, sizeof(msg));
-		++cnt;
-	}
-
-	fifo_rd = ioread8(&card->dpram[DPRAM_RX_RD]);
-	fifo_wr = ioread8(&card->dpram[DPRAM_RX_WR]);
-
-	if (++fifo_rd >= DPRAM_RX_CNT)
-		fifo_rd = 0;
-	if (fifo_wr == fifo_rd)
-		return cnt;
-
-	memcpy_fromio(buf, &card->dpram[DPRAM_RX + DPRAM_RX_SIZE*fifo_rd],
-			DPRAM_RX_SIZE);
-	mb();
-	/* trigger dual port RAM */
-	iowrite8(fifo_rd, &card->dpram[DPRAM_RX_RD]);
-
-	ptr = buf;
-	cmd = *ptr++;
-	if (cmd == 0xff)
-		/* not quite useful, probably the card has got out */
-		return 0;
-	netdev = card->net[0];
-	if (cmd & CMD_BUS2)
-		netdev = card->net[1];
-	priv = netdev_priv(netdev);
-
-	if (cmd & CMD_ERR) {
-		uint8_t can_state, state;
-
-		state = *ptr++;
-
-		msg.can_id = CAN_ERR_FLAG;
-		msg.len = CAN_ERR_DLC;
-
-		if (state & SF_MASK_BUSOFF) {
-			can_state = CAN_STATE_BUS_OFF;
-			msg.can_id |= CAN_ERR_BUSOFF;
-			state = STATE_BUSOFF;
-		} else if (state & SF_MASK_EPASSIVE) {
-			can_state = CAN_STATE_ERROR_PASSIVE;
-			msg.can_id |= CAN_ERR_CRTL;
-			msg.data[1] = CAN_ERR_CRTL_TX_PASSIVE;
-			state = STATE_EPASSIVE;
-		} else {
-			can_state = CAN_STATE_ERROR_ACTIVE;
-			msg.can_id |= CAN_ERR_CRTL;
-			state = STATE_EACTIVE;
-		}
-		/* update DPRAM */
-		iowrite8(state, &card->dpram[priv->index ?
-				DPRAM_INFO_BUSSTATE2 : DPRAM_INFO_BUSSTATE]);
-		/* timestamp */
-		tmp_u32 = le32_to_cpup((void *)ptr);
-		ktime = softing_raw2ktime(card, tmp_u32);
-
-		++netdev->stats.rx_errors;
-		/* update internal status */
-		if (can_state != priv->can.state) {
-			priv->can.state = can_state;
-			if (can_state == CAN_STATE_ERROR_PASSIVE)
-				++priv->can.can_stats.error_passive;
-			else if (can_state == CAN_STATE_BUS_OFF) {
-				/* this calls can_close_cleanup() */
-				++priv->can.can_stats.bus_off;
-				can_bus_off(netdev);
-				netif_stop_queue(netdev);
-			}
-			/* trigger socketcan */
-			softing_netdev_rx(netdev, &msg, ktime);
-		}
-
-	} else {
-		if (cmd & CMD_RTR)
-			msg.can_id |= CAN_RTR_FLAG;
-		msg.len = can_cc_dlc2len(*ptr++);
-		if (cmd & CMD_XTD) {
-			msg.can_id |= CAN_EFF_FLAG;
-			msg.can_id |= le32_to_cpup((void *)ptr);
-			ptr += 4;
-		} else {
-			msg.can_id |= le16_to_cpup((void *)ptr);
-			ptr += 2;
-		}
-		/* timestamp */
-		tmp_u32 = le32_to_cpup((void *)ptr);
-		ptr += 4;
-		ktime = softing_raw2ktime(card, tmp_u32);
-		if (!(msg.can_id & CAN_RTR_FLAG))
-			memcpy(&msg.data[0], ptr, 8);
-		/* update socket */
-		if (cmd & CMD_ACK) {
-			/* acknowledge, was tx msg */
-			struct sk_buff *skb;
-			skb = priv->can.echo_skb[priv->tx.echo_get];
-			if (skb)
-				skb->tstamp = ktime;
-			++netdev->stats.tx_packets;
-			netdev->stats.tx_bytes +=
-				can_get_echo_skb(netdev, priv->tx.echo_get,
-						 NULL);
-			++priv->tx.echo_get;
-			if (priv->tx.echo_get >= TX_ECHO_SKB_MAX)
-				priv->tx.echo_get = 0;
-			if (priv->tx.pending)
-				--priv->tx.pending;
-			if (card->tx.pending)
-				--card->tx.pending;
-		} else {
-			int ret;
-
-			ret = softing_netdev_rx(netdev, &msg, ktime);
-			if (ret == NET_RX_SUCCESS) {
-				++netdev->stats.rx_packets;
-				if (!(msg.can_id & CAN_RTR_FLAG))
-					netdev->stats.rx_bytes += msg.len;
-			} else {
-				++netdev->stats.rx_dropped;
-			}
-		}
-	}
-	++cnt;
-	return cnt;
-}
-
-/*
- * real interrupt handler
- */
-static irqreturn_t softing_irq_thread(int irq, void *dev_id)
-{
-	struct softing *card = (struct softing *)dev_id;
-	struct net_device *netdev;
-	struct softing_priv *priv;
-	int j, offset, work_done;
-
-	work_done = 0;
-	spin_lock_bh(&card->spin);
-	while (softing_handle_1(card) > 0) {
-		++card->irq.svc_count;
-		++work_done;
-	}
-	spin_unlock_bh(&card->spin);
-	/* resume tx queue's */
-	offset = card->tx.last_bus;
-	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {
-		if (card->tx.pending >= TXMAX)
-			break;
-		netdev = card->net[(j + offset + 1) % card->pdat->nbus];
-		if (!netdev)
-			continue;
-		priv = netdev_priv(netdev);
-		if (!canif_is_active(netdev))
-			/* it makes no sense to wake dead buses */
-			continue;
-		if (priv->tx.pending >= TX_ECHO_SKB_MAX)
-			continue;
-		++work_done;
-		netif_wake_queue(netdev);
-	}
-	return work_done ? IRQ_HANDLED : IRQ_NONE;
-}
-
-/*
- * interrupt routines:
- * schedule the 'real interrupt handler'
- */
-static irqreturn_t softing_irq_v2(int irq, void *dev_id)
-{
-	struct softing *card = (struct softing *)dev_id;
-	uint8_t ir;
-
-	ir = ioread8(&card->dpram[DPRAM_V2_IRQ_TOHOST]);
-	iowrite8(0, &card->dpram[DPRAM_V2_IRQ_TOHOST]);
-	return (1 == ir) ? IRQ_WAKE_THREAD : IRQ_NONE;
-}
-
-static irqreturn_t softing_irq_v1(int irq, void *dev_id)
-{
-	struct softing *card = (struct softing *)dev_id;
-	uint8_t ir;
-
-	ir = ioread8(&card->dpram[DPRAM_IRQ_TOHOST]);
-	iowrite8(0, &card->dpram[DPRAM_IRQ_TOHOST]);
-	return ir ? IRQ_WAKE_THREAD : IRQ_NONE;
-}
-
-/*
- * netdev/candev interoperability
- */
-static int softing_netdev_open(struct net_device *ndev)
-{
-	int ret;
-
-	/* check or determine and set bittime */
-	ret = open_candev(ndev);
-	if (ret)
-		return ret;
-
-	ret = softing_startstop(ndev, 1);
-	if (ret < 0)
-		close_candev(ndev);
-
-	return ret;
-}
-
-static int softing_netdev_stop(struct net_device *ndev)
-{
-	netif_stop_queue(ndev);
-
-	/* softing cycle does close_candev() */
-	return softing_startstop(ndev, 0);
-}
-
-static int softing_candev_set_mode(struct net_device *ndev, enum can_mode mode)
-{
-	int ret;
-
-	switch (mode) {
-	case CAN_MODE_START:
-		/* softing_startstop does close_candev() */
-		ret = softing_startstop(ndev, 1);
-		return ret;
-	case CAN_MODE_STOP:
-	case CAN_MODE_SLEEP:
-		return -EOPNOTSUPP;
-	}
-	return 0;
-}
-
-/*
- * Softing device management helpers
- */
-int softing_enable_irq(struct softing *card, int enable)
-{
-	int ret;
-
-	if (!card->irq.nr) {
-		return 0;
-	} else if (card->irq.requested && !enable) {
-		free_irq(card->irq.nr, card);
-		card->irq.requested = 0;
-	} else if (!card->irq.requested && enable) {
-		ret = request_threaded_irq(card->irq.nr,
-				(card->pdat->generation >= 2) ?
-					softing_irq_v2 : softing_irq_v1,
-				softing_irq_thread, IRQF_SHARED,
-				dev_name(&card->pdev->dev), card);
-		if (ret) {
-			dev_alert(&card->pdev->dev,
-					"request_threaded_irq(%u) failed\n",
-					card->irq.nr);
-			return ret;
-		}
-		card->irq.requested = 1;
-	}
-	return 0;
-}
-
-static void softing_card_shutdown(struct softing *card)
-{
-	int fw_up = 0;
-
-	if (mutex_lock_interruptible(&card->fw.lock)) {
-		/* return -ERESTARTSYS */;
-	}
-	fw_up = card->fw.up;
-	card->fw.up = 0;
-
-	if (card->irq.requested && card->irq.nr) {
-		free_irq(card->irq.nr, card);
-		card->irq.requested = 0;
-	}
-	if (fw_up) {
-		if (card->pdat->enable_irq)
-			card->pdat->enable_irq(card->pdev, 0);
-		softing_set_reset_dpram(card);
-		if (card->pdat->reset)
-			card->pdat->reset(card->pdev, 1);
-	}
-	mutex_unlock(&card->fw.lock);
-}
-
-static int softing_card_boot(struct softing *card)
-{
-	int ret, j;
-	static const uint8_t stream[] = {
-		0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, };
-	unsigned char back[sizeof(stream)];
-
-	if (mutex_lock_interruptible(&card->fw.lock))
-		return -ERESTARTSYS;
-	if (card->fw.up) {
-		mutex_unlock(&card->fw.lock);
-		return 0;
-	}
-	/* reset board */
-	if (card->pdat->enable_irq)
-		card->pdat->enable_irq(card->pdev, 1);
-	/* boot card */
-	softing_set_reset_dpram(card);
-	if (card->pdat->reset)
-		card->pdat->reset(card->pdev, 1);
-	for (j = 0; (j + sizeof(stream)) < card->dpram_size;
-			j += sizeof(stream)) {
-
-		memcpy_toio(&card->dpram[j], stream, sizeof(stream));
-		/* flush IO cache */
-		mb();
-		memcpy_fromio(back, &card->dpram[j], sizeof(stream));
-
-		if (!memcmp(back, stream, sizeof(stream)))
-			continue;
-		/* memory is not equal */
-		dev_alert(&card->pdev->dev, "dpram failed at 0x%04x\n", j);
-		ret = -EIO;
-		goto failed;
-	}
-	wmb();
-	/* load boot firmware */
-	ret = softing_load_fw(card->pdat->boot.fw, card, card->dpram,
-				card->dpram_size,
-				card->pdat->boot.offs - card->pdat->boot.addr);
-	if (ret < 0)
-		goto failed;
-	/* load loader firmware */
-	ret = softing_load_fw(card->pdat->load.fw, card, card->dpram,
-				card->dpram_size,
-				card->pdat->load.offs - card->pdat->load.addr);
-	if (ret < 0)
-		goto failed;
-
-	if (card->pdat->reset)
-		card->pdat->reset(card->pdev, 0);
-	softing_clr_reset_dpram(card);
-	ret = softing_bootloader_command(card, 0, "card boot");
-	if (ret < 0)
-		goto failed;
-	ret = softing_load_app_fw(card->pdat->app.fw, card);
-	if (ret < 0)
-		goto failed;
-
-	ret = softing_chip_poweron(card);
-	if (ret < 0)
-		goto failed;
-
-	card->fw.up = 1;
-	mutex_unlock(&card->fw.lock);
-	return 0;
-failed:
-	card->fw.up = 0;
-	if (card->pdat->enable_irq)
-		card->pdat->enable_irq(card->pdev, 0);
-	softing_set_reset_dpram(card);
-	if (card->pdat->reset)
-		card->pdat->reset(card->pdev, 1);
-	mutex_unlock(&card->fw.lock);
-	return ret;
-}
-
-/*
- * netdev sysfs
- */
-static ssize_t show_chip(struct device *dev, struct device_attribute *attr,
-		char *buf)
-{
-	struct net_device *ndev = to_net_dev(dev);
-	struct softing_priv *priv = netdev2softing(ndev);
-
-	return sprintf(buf, "%i\n", priv->chip);
-}
-
-static ssize_t show_output(struct device *dev, struct device_attribute *attr,
-		char *buf)
-{
-	struct net_device *ndev = to_net_dev(dev);
-	struct softing_priv *priv = netdev2softing(ndev);
-
-	return sprintf(buf, "0x%02x\n", priv->output);
-}
-
-static ssize_t store_output(struct device *dev, struct device_attribute *attr,
-		const char *buf, size_t count)
-{
-	struct net_device *ndev = to_net_dev(dev);
-	struct softing_priv *priv = netdev2softing(ndev);
-	struct softing *card = priv->card;
-	unsigned long val;
-	int ret;
-
-	ret = kstrtoul(buf, 0, &val);
-	if (ret < 0)
-		return ret;
-	val &= 0xFF;
-
-	ret = mutex_lock_interruptible(&card->fw.lock);
-	if (ret)
-		return -ERESTARTSYS;
-	if (netif_running(ndev)) {
-		mutex_unlock(&card->fw.lock);
-		return -EBUSY;
-	}
-	priv->output = val;
-	mutex_unlock(&card->fw.lock);
-	return count;
-}
-
-static const DEVICE_ATTR(chip, 0444, show_chip, NULL);
-static const DEVICE_ATTR(output, 0644, show_output, store_output);
-
-static const struct attribute *const netdev_sysfs_attrs[] = {
-	&dev_attr_chip.attr,
-	&dev_attr_output.attr,
-	NULL,
-};
-static const struct attribute_group netdev_sysfs_group = {
-	.name = NULL,
-	.attrs = (struct attribute **)netdev_sysfs_attrs,
-};
-
-static const struct net_device_ops softing_netdev_ops = {
-	.ndo_open = softing_netdev_open,
-	.ndo_stop = softing_netdev_stop,
-	.ndo_start_xmit	= softing_netdev_start_xmit,
-};
-
-static const struct ethtool_ops softing_ethtool_ops = {
-	.get_ts_info = ethtool_op_get_ts_info,
-};
-
-static const struct can_bittiming_const softing_btr_const = {
-	.name = KBUILD_MODNAME,
-	.tseg1_min = 1,
-	.tseg1_max = 16,
-	.tseg2_min = 1,
-	.tseg2_max = 8,
-	.sjw_max = 4, /* overruled */
-	.brp_min = 1,
-	.brp_max = 32, /* overruled */
-	.brp_inc = 1,
-};
-
-
-static struct net_device *softing_netdev_create(struct softing *card,
-						uint16_t chip_id)
-{
-	struct net_device *netdev;
-	struct softing_priv *priv;
-
-	netdev = alloc_candev(sizeof(*priv), TX_ECHO_SKB_MAX);
-	if (!netdev) {
-		dev_alert(&card->pdev->dev, "alloc_candev failed\n");
-		return NULL;
-	}
-	priv = netdev_priv(netdev);
-	priv->netdev = netdev;
-	priv->card = card;
-	memcpy(&priv->btr_const, &softing_btr_const, sizeof(priv->btr_const));
-	priv->btr_const.brp_max = card->pdat->max_brp;
-	priv->btr_const.sjw_max = card->pdat->max_sjw;
-	priv->can.bittiming_const = &priv->btr_const;
-	priv->can.clock.freq = 8000000;
-	priv->chip = chip_id;
-	priv->output = softing_default_output(netdev);
-	SET_NETDEV_DEV(netdev, &card->pdev->dev);
-
-	netdev->flags |= IFF_ECHO;
-	netdev->netdev_ops = &softing_netdev_ops;
-	netdev->ethtool_ops = &softing_ethtool_ops;
-	priv->can.do_set_mode = softing_candev_set_mode;
-	priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES;
-
-	return netdev;
-}
-
-static int softing_netdev_register(struct net_device *netdev)
-{
-	int ret;
-
-	ret = register_candev(netdev);
-	if (ret) {
-		dev_alert(&netdev->dev, "register failed\n");
-		return ret;
-	}
-	if (sysfs_create_group(&netdev->dev.kobj, &netdev_sysfs_group) < 0)
-		netdev_alert(netdev, "sysfs group failed\n");
-
-	return 0;
-}
-
-static void softing_netdev_cleanup(struct net_device *netdev)
-{
-	sysfs_remove_group(&netdev->dev.kobj, &netdev_sysfs_group);
-	unregister_candev(netdev);
-	free_candev(netdev);
-}
-
-/*
- * sysfs for Platform device
- */
-#define DEV_ATTR_RO(name, member) \
-static ssize_t show_##name(struct device *dev, \
-		struct device_attribute *attr, char *buf) \
-{ \
-	struct softing *card = dev_get_drvdata(dev); \
-	return sprintf(buf, "%u\n", card->member); \
-} \
-static DEVICE_ATTR(name, 0444, show_##name, NULL)
-
-#define DEV_ATTR_RO_STR(name, member) \
-static ssize_t show_##name(struct device *dev, \
-		struct device_attribute *attr, char *buf) \
-{ \
-	struct softing *card = dev_get_drvdata(dev); \
-	return sprintf(buf, "%s\n", card->member); \
-} \
-static DEVICE_ATTR(name, 0444, show_##name, NULL)
-
-DEV_ATTR_RO(serial, id.serial);
-DEV_ATTR_RO_STR(firmware, pdat->app.fw);
-DEV_ATTR_RO(firmware_version, id.fw_version);
-DEV_ATTR_RO_STR(hardware, pdat->name);
-DEV_ATTR_RO(hardware_version, id.hw_version);
-DEV_ATTR_RO(license, id.license);
-
-static struct attribute *softing_pdev_attrs[] = {
-	&dev_attr_serial.attr,
-	&dev_attr_firmware.attr,
-	&dev_attr_firmware_version.attr,
-	&dev_attr_hardware.attr,
-	&dev_attr_hardware_version.attr,
-	&dev_attr_license.attr,
-	NULL,
-};
-
-static const struct attribute_group softing_pdev_group = {
-	.name = NULL,
-	.attrs = softing_pdev_attrs,
-};
-
-/*
- * platform driver
- */
-static void softing_pdev_remove(struct platform_device *pdev)
-{
-	struct softing *card = platform_get_drvdata(pdev);
-	int j;
-
-	/* first, disable card*/
-	softing_card_shutdown(card);
-
-	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {
-		if (!card->net[j])
-			continue;
-		softing_netdev_cleanup(card->net[j]);
-		card->net[j] = NULL;
-	}
-	sysfs_remove_group(&pdev->dev.kobj, &softing_pdev_group);
-
-	iounmap(card->dpram);
-	kfree(card);
-}
-
-static int softing_pdev_probe(struct platform_device *pdev)
-{
-	const struct softing_platform_data *pdat = dev_get_platdata(&pdev->dev);
-	struct softing *card;
-	struct net_device *netdev;
-	struct softing_priv *priv;
-	struct resource *pres;
-	int ret;
-	int j;
-
-	if (!pdat) {
-		dev_warn(&pdev->dev, "no platform data\n");
-		return -EINVAL;
-	}
-	if (pdat->nbus > ARRAY_SIZE(card->net)) {
-		dev_warn(&pdev->dev, "%u nets??\n", pdat->nbus);
-		return -EINVAL;
-	}
-
-	card = kzalloc_obj(*card);
-	if (!card)
-		return -ENOMEM;
-	card->pdat = pdat;
-	card->pdev = pdev;
-	platform_set_drvdata(pdev, card);
-	mutex_init(&card->fw.lock);
-	spin_lock_init(&card->spin);
-
-	ret = -EINVAL;
-	pres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!pres)
-		goto platform_resource_failed;
-	card->dpram_phys = pres->start;
-	card->dpram_size = resource_size(pres);
-	card->dpram = ioremap(card->dpram_phys, card->dpram_size);
-	if (!card->dpram) {
-		dev_alert(&card->pdev->dev, "dpram ioremap failed\n");
-		goto ioremap_failed;
-	}
-
-	pres = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (pres)
-		card->irq.nr = pres->start;
-
-	/* reset card */
-	ret = softing_card_boot(card);
-	if (ret < 0) {
-		dev_alert(&pdev->dev, "failed to boot\n");
-		goto boot_failed;
-	}
-
-	/* only now, the chip's are known */
-	card->id.freq = card->pdat->freq;
-
-	ret = sysfs_create_group(&pdev->dev.kobj, &softing_pdev_group);
-	if (ret < 0) {
-		dev_alert(&card->pdev->dev, "sysfs failed\n");
-		goto sysfs_failed;
-	}
-
-	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {
-		card->net[j] = netdev =
-			softing_netdev_create(card, card->id.chip[j]);
-		if (!netdev) {
-			dev_alert(&pdev->dev, "failed to make can[%i]", j);
-			ret = -ENOMEM;
-			goto netdev_failed;
-		}
-		netdev->dev_id = j;
-		priv = netdev_priv(card->net[j]);
-		priv->index = j;
-		ret = softing_netdev_register(netdev);
-		if (ret) {
-			free_candev(netdev);
-			card->net[j] = NULL;
-			dev_alert(&card->pdev->dev,
-					"failed to register can[%i]\n", j);
-			goto netdev_failed;
-		}
-	}
-	dev_info(&card->pdev->dev, "%s ready.\n", card->pdat->name);
-	return 0;
-
-netdev_failed:
-	for (j = 0; j < ARRAY_SIZE(card->net); ++j) {
-		if (!card->net[j])
-			continue;
-		softing_netdev_cleanup(card->net[j]);
-	}
-	sysfs_remove_group(&pdev->dev.kobj, &softing_pdev_group);
-sysfs_failed:
-	softing_card_shutdown(card);
-boot_failed:
-	iounmap(card->dpram);
-ioremap_failed:
-platform_resource_failed:
-	kfree(card);
-	return ret;
-}
-
-static struct platform_driver softing_driver = {
-	.driver = {
-		.name = KBUILD_MODNAME,
-	},
-	.probe = softing_pdev_probe,
-	.remove = softing_pdev_remove,
-};
-
-module_platform_driver(softing_driver);
-
-MODULE_ALIAS("platform:softing");
-MODULE_DESCRIPTION("Softing DPRAM CAN driver");
-MODULE_AUTHOR("Kurt Van Dijck <kurt.van.dijck@eia.be>");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/can/softing/softing_platform.h b/drivers/net/can/softing/softing_platform.h
deleted file mode 100644
index cd8d7904c5f0..000000000000
--- a/drivers/net/can/softing/softing_platform.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-
-#include <linux/platform_device.h>
-
-#ifndef _SOFTING_DEVICE_H_
-#define _SOFTING_DEVICE_H_
-
-/* softing firmware directory prefix */
-#define fw_dir "softing-4.6/"
-
-struct softing_platform_data {
-	unsigned int manf;
-	unsigned int prod;
-	/*
-	 * generation
-	 * 1st with NEC or SJA1000
-	 * 8bit, exclusive interrupt, ...
-	 * 2nd only SJA1000
-	 * 16bit, shared interrupt
-	 */
-	int generation;
-	int nbus; /* # buses on device */
-	unsigned int freq; /* operating frequency in Hz */
-	unsigned int max_brp;
-	unsigned int max_sjw;
-	unsigned long dpram_size;
-	const char *name;
-	struct {
-		unsigned long offs;
-		unsigned long addr;
-		const char *fw;
-	} boot, load, app;
-	/*
-	 * reset() function
-	 * bring pdev in or out of reset, depending on value
-	 */
-	int (*reset)(struct platform_device *pdev, int value);
-	int (*enable_irq)(struct platform_device *pdev, int value);
-};
-
-#endif
-- 
2.53.0


^ permalink raw reply related	[flat|nested] 2+ messages in thread
end of thread, other threads:[~2026-08-15 11:49 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-08-15 10:34 [can-next] can: remove Softing CANcard driver Oliver Hartkopp
2026-08-15 11:49 ` Oliver Hartkopp

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.