Re: [can-next] can: remove Softing CANcard driver

Hi Kurt,

sorry for picking the old mail address I found in the code.

I'm suggesting to remove your softing driver from 2010.
Are you fine with it?

Best regards,
Oliver

On 15.08.26 12:34, Oliver Hartkopp wrote:
> 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 <[email protected]>
> Signed-off-by: Oliver Hartkopp <[email protected]>
> ---
>   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 <[email protected]>");
> -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