pata: remove samsung_cf driver

This device was only used by the smdk6410 board file that is now
gone, so the driver can be removed as well.

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

4 files changed, 0 insertions, 704 deletions

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index eceaec33af65..e4d9e39b08dd 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -1144,16 +1144,6 @@ config PATA_RZ1000
 
 	  If unsure, say N.
 
-config PATA_SAMSUNG_CF
-	tristate "Samsung SoC PATA support"
-	depends on SAMSUNG_DEV_IDE || COMPILE_TEST
-	select PATA_TIMINGS
-	help
-	  This option enables basic support for Samsung's S3C/S5P board
-	  PATA controllers via the new ATA layer
-
-	  If unsure, say N.
-
 config PATA_WINBOND_VLB
 	tristate "Winbond W83759A VLB PATA support (Experimental)"
 	depends on ISA
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index d2e36d367274..0a863e7f3c60 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -110,7 +110,6 @@ obj-$(CONFIG_PATA_PLATFORM)	+= pata_platform.o
 obj-$(CONFIG_PATA_OF_PLATFORM)	+= pata_of_platform.o
 obj-$(CONFIG_PATA_RB532)	+= pata_rb532_cf.o
 obj-$(CONFIG_PATA_RZ1000)	+= pata_rz1000.o
-obj-$(CONFIG_PATA_SAMSUNG_CF)	+= pata_samsung_cf.o
 
 obj-$(CONFIG_PATA_PXA)		+= pata_pxa.o
 
diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c
deleted file mode 100644
index aba1536ddd44..000000000000
--- a/drivers/ata/pata_samsung_cf.c
+++ /dev/null
@@ -1,662 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2010 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- *
- * PATA driver for Samsung SoCs.
- * Supports CF Interface in True IDE mode. Currently only PIO mode has been
- * implemented; UDMA support has to be added.
- *
- * Based on:
- *	PATA driver for AT91SAM9260 Static Memory Controller
- *	PATA driver for Toshiba SCC controller
-*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/mod_devicetable.h>
-#include <linux/init.h>
-#include <linux/clk.h>
-#include <linux/libata.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-
-#include <linux/platform_data/ata-samsung_cf.h>
-
-#define DRV_NAME "pata_samsung_cf"
-#define DRV_VERSION "0.1"
-
-#define S3C_CFATA_REG(x)	(x)
-#define S3C_CFATA_MUX		S3C_CFATA_REG(0x0)
-#define S3C_ATA_CTRL		S3C_CFATA_REG(0x0)
-#define S3C_ATA_CMD		S3C_CFATA_REG(0x8)
-#define S3C_ATA_IRQ		S3C_CFATA_REG(0x10)
-#define S3C_ATA_IRQ_MSK		S3C_CFATA_REG(0x14)
-#define S3C_ATA_CFG		S3C_CFATA_REG(0x18)
-
-#define S3C_ATA_PIO_TIME	S3C_CFATA_REG(0x2c)
-#define S3C_ATA_PIO_DTR		S3C_CFATA_REG(0x54)
-#define S3C_ATA_PIO_FED		S3C_CFATA_REG(0x58)
-#define S3C_ATA_PIO_SCR		S3C_CFATA_REG(0x5c)
-#define S3C_ATA_PIO_LLR		S3C_CFATA_REG(0x60)
-#define S3C_ATA_PIO_LMR		S3C_CFATA_REG(0x64)
-#define S3C_ATA_PIO_LHR		S3C_CFATA_REG(0x68)
-#define S3C_ATA_PIO_DVR		S3C_CFATA_REG(0x6c)
-#define S3C_ATA_PIO_CSD		S3C_CFATA_REG(0x70)
-#define S3C_ATA_PIO_DAD		S3C_CFATA_REG(0x74)
-#define S3C_ATA_PIO_RDATA	S3C_CFATA_REG(0x7c)
-
-#define S3C_CFATA_MUX_TRUEIDE	0x01
-#define S3C_ATA_CFG_SWAP	0x40
-#define S3C_ATA_CFG_IORDYEN	0x02
-
-enum s3c_cpu_type {
-	TYPE_S3C64XX,
-	TYPE_S5PV210,
-};
-
-/*
- * struct s3c_ide_info - S3C PATA instance.
- * @clk: The clock resource for this controller.
- * @ide_addr: The area mapped for the hardware registers.
- * @sfr_addr: The area mapped for the special function registers.
- * @irq: The IRQ number we are using.
- * @cpu_type: The exact type of this controller.
- * @fifo_status_reg: The ATA_FIFO_STATUS register offset.
- */
-struct s3c_ide_info {
-	struct clk *clk;
-	void __iomem *ide_addr;
-	void __iomem *sfr_addr;
-	int irq;
-	enum s3c_cpu_type cpu_type;
-	unsigned int fifo_status_reg;
-};
-
-static void pata_s3c_set_endian(void __iomem *s3c_ide_regbase, u8 mode)
-{
-	u32 reg = readl(s3c_ide_regbase + S3C_ATA_CFG);
-	reg = mode ? (reg & ~S3C_ATA_CFG_SWAP) : (reg | S3C_ATA_CFG_SWAP);
-	writel(reg, s3c_ide_regbase + S3C_ATA_CFG);
-}
-
-static void pata_s3c_cfg_mode(void __iomem *s3c_ide_sfrbase)
-{
-	/* Select true-ide as the internal operating mode */
-	writel(readl(s3c_ide_sfrbase + S3C_CFATA_MUX) | S3C_CFATA_MUX_TRUEIDE,
-		s3c_ide_sfrbase + S3C_CFATA_MUX);
-}
-
-static unsigned long
-pata_s3c_setup_timing(struct s3c_ide_info *info, const struct ata_timing *ata)
-{
-	int t1 = ata->setup;
-	int t2 = ata->act8b;
-	int t2i = ata->rec8b;
-	ulong piotime;
-
-	piotime = ((t2i & 0xff) << 12) | ((t2 & 0xff) << 4) | (t1 & 0xf);
-
-	return piotime;
-}
-
-static void pata_s3c_set_piomode(struct ata_port *ap, struct ata_device *adev)
-{
-	struct s3c_ide_info *info = ap->host->private_data;
-	struct ata_timing timing;
-	int cycle_time;
-	ulong ata_cfg = readl(info->ide_addr + S3C_ATA_CFG);
-	ulong piotime;
-
-	/* Enables IORDY if mode requires it */
-	if (ata_pio_need_iordy(adev))
-		ata_cfg |= S3C_ATA_CFG_IORDYEN;
-	else
-		ata_cfg &= ~S3C_ATA_CFG_IORDYEN;
-
-	cycle_time = (int)(1000000000UL / clk_get_rate(info->clk));
-
-	ata_timing_compute(adev, adev->pio_mode, &timing,
-					cycle_time * 1000, 0);
-
-	piotime = pata_s3c_setup_timing(info, &timing);
-
-	writel(ata_cfg, info->ide_addr + S3C_ATA_CFG);
-	writel(piotime, info->ide_addr + S3C_ATA_PIO_TIME);
-}
-
-/*
- * Waits until the IDE controller is able to perform next read/write
- * operation to the disk. Needed for 64XX series boards only.
- */
-static int wait_for_host_ready(struct s3c_ide_info *info)
-{
-	ulong timeout;
-	void __iomem *fifo_reg = info->ide_addr + info->fifo_status_reg;
-
-	/* wait for maximum of 20 msec */
-	timeout = jiffies + msecs_to_jiffies(20);
-	while (time_before(jiffies, timeout)) {
-		if ((readl(fifo_reg) >> 28) == 0)
-			return 0;
-	}
-	return -EBUSY;
-}
-
-/*
- * Writes to one of the task file registers.
- */
-static void ata_outb(struct ata_host *host, u8 addr, void __iomem *reg)
-{
-	struct s3c_ide_info *info = host->private_data;
-
-	wait_for_host_ready(info);
-	writeb(addr, reg);
-}
-
-/*
- * Reads from one of the task file registers.
- */
-static u8 ata_inb(struct ata_host *host, void __iomem *reg)
-{
-	struct s3c_ide_info *info = host->private_data;
-	u8 temp;
-
-	wait_for_host_ready(info);
-	(void) readb(reg);
-	wait_for_host_ready(info);
-	temp = readb(info->ide_addr + S3C_ATA_PIO_RDATA);
-	return temp;
-}
-
-/*
- * pata_s3c_tf_load - send taskfile registers to host controller
- */
-static void pata_s3c_tf_load(struct ata_port *ap,
-				const struct ata_taskfile *tf)
-{
-	struct ata_ioports *ioaddr = &ap->ioaddr;
-	unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
-
-	if (tf->ctl != ap->last_ctl) {
-		ata_outb(ap->host, tf->ctl, ioaddr->ctl_addr);
-		ap->last_ctl = tf->ctl;
-		ata_wait_idle(ap);
-	}
-
-	if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
-		ata_outb(ap->host, tf->hob_feature, ioaddr->feature_addr);
-		ata_outb(ap->host, tf->hob_nsect, ioaddr->nsect_addr);
-		ata_outb(ap->host, tf->hob_lbal, ioaddr->lbal_addr);
-		ata_outb(ap->host, tf->hob_lbam, ioaddr->lbam_addr);
-		ata_outb(ap->host, tf->hob_lbah, ioaddr->lbah_addr);
-	}
-
-	if (is_addr) {
-		ata_outb(ap->host, tf->feature, ioaddr->feature_addr);
-		ata_outb(ap->host, tf->nsect, ioaddr->nsect_addr);
-		ata_outb(ap->host, tf->lbal, ioaddr->lbal_addr);
-		ata_outb(ap->host, tf->lbam, ioaddr->lbam_addr);
-		ata_outb(ap->host, tf->lbah, ioaddr->lbah_addr);
-	}
-
-	if (tf->flags & ATA_TFLAG_DEVICE)
-		ata_outb(ap->host, tf->device, ioaddr->device_addr);
-
-	ata_wait_idle(ap);
-}
-
-/*
- * pata_s3c_tf_read - input device's ATA taskfile shadow registers
- */
-static void pata_s3c_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
-{
-	struct ata_ioports *ioaddr = &ap->ioaddr;
-
-	tf->error = ata_inb(ap->host, ioaddr->error_addr);
-	tf->nsect = ata_inb(ap->host, ioaddr->nsect_addr);
-	tf->lbal = ata_inb(ap->host, ioaddr->lbal_addr);
-	tf->lbam = ata_inb(ap->host, ioaddr->lbam_addr);
-	tf->lbah = ata_inb(ap->host, ioaddr->lbah_addr);
-	tf->device = ata_inb(ap->host, ioaddr->device_addr);
-
-	if (tf->flags & ATA_TFLAG_LBA48) {
-		ata_outb(ap->host, tf->ctl | ATA_HOB, ioaddr->ctl_addr);
-		tf->hob_feature = ata_inb(ap->host, ioaddr->error_addr);
-		tf->hob_nsect = ata_inb(ap->host, ioaddr->nsect_addr);
-		tf->hob_lbal = ata_inb(ap->host, ioaddr->lbal_addr);
-		tf->hob_lbam = ata_inb(ap->host, ioaddr->lbam_addr);
-		tf->hob_lbah = ata_inb(ap->host, ioaddr->lbah_addr);
-		ata_outb(ap->host, tf->ctl, ioaddr->ctl_addr);
-		ap->last_ctl = tf->ctl;
-	}
-}
-
-/*
- * pata_s3c_exec_command - issue ATA command to host controller
- */
-static void pata_s3c_exec_command(struct ata_port *ap,
-				const struct ata_taskfile *tf)
-{
-	ata_outb(ap->host, tf->command, ap->ioaddr.command_addr);
-	ata_sff_pause(ap);
-}
-
-/*
- * pata_s3c_check_status - Read device status register
- */
-static u8 pata_s3c_check_status(struct ata_port *ap)
-{
-	return ata_inb(ap->host, ap->ioaddr.status_addr);
-}
-
-/*
- * pata_s3c_check_altstatus - Read alternate device status register
- */
-static u8 pata_s3c_check_altstatus(struct ata_port *ap)
-{
-	return ata_inb(ap->host, ap->ioaddr.altstatus_addr);
-}
-
-/*
- * pata_s3c_data_xfer - Transfer data by PIO
- */
-static unsigned int pata_s3c_data_xfer(struct ata_queued_cmd *qc,
-				unsigned char *buf, unsigned int buflen, int rw)
-{
-	struct ata_port *ap = qc->dev->link->ap;
-	struct s3c_ide_info *info = ap->host->private_data;
-	void __iomem *data_addr = ap->ioaddr.data_addr;
-	unsigned int words = buflen >> 1, i;
-	u16 *data_ptr = (u16 *)buf;
-
-	/* Requires wait same as in ata_inb/ata_outb */
-	if (rw == READ)
-		for (i = 0; i < words; i++, data_ptr++) {
-			wait_for_host_ready(info);
-			(void) readw(data_addr);
-			wait_for_host_ready(info);
-			*data_ptr = readw(info->ide_addr
-					+ S3C_ATA_PIO_RDATA);
-		}
-	else
-		for (i = 0; i < words; i++, data_ptr++) {
-			wait_for_host_ready(info);
-			writew(*data_ptr, data_addr);
-		}
-
-	if (buflen & 0x01)
-		dev_err(ap->dev, "unexpected trailing data\n");
-
-	return words << 1;
-}
-
-/*
- * pata_s3c_dev_select - Select device on ATA bus
- */
-static void pata_s3c_dev_select(struct ata_port *ap, unsigned int device)
-{
-	u8 tmp = ATA_DEVICE_OBS;
-
-	if (device != 0)
-		tmp |= ATA_DEV1;
-
-	ata_outb(ap->host, tmp, ap->ioaddr.device_addr);
-	ata_sff_pause(ap);
-}
-
-/*
- * pata_s3c_devchk - PATA device presence detection
- */
-static bool pata_s3c_devchk(struct ata_port *ap, unsigned int device)
-{
-	struct ata_ioports *ioaddr = &ap->ioaddr;
-	u8 nsect, lbal;
-
-	pata_s3c_dev_select(ap, device);
-
-	ata_outb(ap->host, 0x55, ioaddr->nsect_addr);
-	ata_outb(ap->host, 0xaa, ioaddr->lbal_addr);
-
-	ata_outb(ap->host, 0xaa, ioaddr->nsect_addr);
-	ata_outb(ap->host, 0x55, ioaddr->lbal_addr);
-
-	ata_outb(ap->host, 0x55, ioaddr->nsect_addr);
-	ata_outb(ap->host, 0xaa, ioaddr->lbal_addr);
-
-	nsect = ata_inb(ap->host, ioaddr->nsect_addr);
-	lbal = ata_inb(ap->host, ioaddr->lbal_addr);
-
-	if ((nsect == 0x55) && (lbal == 0xaa))
-		return true;	/* we found a device */
-
-	return false;		/* nothing found */
-}
-
-/*
- * pata_s3c_wait_after_reset - wait for devices to become ready after reset
- */
-static int pata_s3c_wait_after_reset(struct ata_link *link,
-		unsigned long deadline)
-{
-	int rc;
-
-	ata_msleep(link->ap, ATA_WAIT_AFTER_RESET);
-
-	/* always check readiness of the master device */
-	rc = ata_sff_wait_ready(link, deadline);
-	/* -ENODEV means the odd clown forgot the D7 pulldown resistor
-	 * and TF status is 0xff, bail out on it too.
-	 */
-	if (rc)
-		return rc;
-
-	return 0;
-}
-
-/*
- * pata_s3c_bus_softreset - PATA device software reset
- */
-static int pata_s3c_bus_softreset(struct ata_port *ap,
-		unsigned long deadline)
-{
-	struct ata_ioports *ioaddr = &ap->ioaddr;
-
-	/* software reset.  causes dev0 to be selected */
-	ata_outb(ap->host, ap->ctl, ioaddr->ctl_addr);
-	udelay(20);
-	ata_outb(ap->host, ap->ctl | ATA_SRST, ioaddr->ctl_addr);
-	udelay(20);
-	ata_outb(ap->host, ap->ctl, ioaddr->ctl_addr);
-	ap->last_ctl = ap->ctl;
-
-	return pata_s3c_wait_after_reset(&ap->link, deadline);
-}
-
-/*
- * pata_s3c_softreset - reset host port via ATA SRST
- */
-static int pata_s3c_softreset(struct ata_link *link, unsigned int *classes,
-			 unsigned long deadline)
-{
-	struct ata_port *ap = link->ap;
-	unsigned int devmask = 0;
-	int rc;
-	u8 err;
-
-	/* determine if device 0 is present */
-	if (pata_s3c_devchk(ap, 0))
-		devmask |= (1 << 0);
-
-	/* select device 0 again */
-	pata_s3c_dev_select(ap, 0);
-
-	/* issue bus reset */
-	rc = pata_s3c_bus_softreset(ap, deadline);
-	/* if link is occupied, -ENODEV too is an error */
-	if (rc && rc != -ENODEV) {
-		ata_link_err(link, "SRST failed (errno=%d)\n", rc);
-		return rc;
-	}
-
-	/* determine by signature whether we have ATA or ATAPI devices */
-	classes[0] = ata_sff_dev_classify(&ap->link.device[0],
-					  devmask & (1 << 0), &err);
-
-	return 0;
-}
-
-/*
- * pata_s3c_set_devctl - Write device control register
- */
-static void pata_s3c_set_devctl(struct ata_port *ap, u8 ctl)
-{
-	ata_outb(ap->host, ctl, ap->ioaddr.ctl_addr);
-}
-
-static struct scsi_host_template pata_s3c_sht = {
-	ATA_PIO_SHT(DRV_NAME),
-};
-
-static struct ata_port_operations pata_s3c_port_ops = {
-	.inherits		= &ata_sff_port_ops,
-	.sff_check_status	= pata_s3c_check_status,
-	.sff_check_altstatus    = pata_s3c_check_altstatus,
-	.sff_tf_load		= pata_s3c_tf_load,
-	.sff_tf_read		= pata_s3c_tf_read,
-	.sff_data_xfer		= pata_s3c_data_xfer,
-	.sff_exec_command	= pata_s3c_exec_command,
-	.sff_dev_select         = pata_s3c_dev_select,
-	.sff_set_devctl         = pata_s3c_set_devctl,
-	.softreset		= pata_s3c_softreset,
-	.set_piomode		= pata_s3c_set_piomode,
-};
-
-static struct ata_port_operations pata_s5p_port_ops = {
-	.inherits		= &ata_sff_port_ops,
-	.set_piomode		= pata_s3c_set_piomode,
-};
-
-static void pata_s3c_enable(void __iomem *s3c_ide_regbase, bool state)
-{
-	u32 temp = readl(s3c_ide_regbase + S3C_ATA_CTRL);
-	temp = state ? (temp | 1) : (temp & ~1);
-	writel(temp, s3c_ide_regbase + S3C_ATA_CTRL);
-}
-
-static irqreturn_t pata_s3c_irq(int irq, void *dev_instance)
-{
-	struct ata_host *host = dev_instance;
-	struct s3c_ide_info *info = host->private_data;
-	u32 reg;
-
-	reg = readl(info->ide_addr + S3C_ATA_IRQ);
-	writel(reg, info->ide_addr + S3C_ATA_IRQ);
-
-	return ata_sff_interrupt(irq, dev_instance);
-}
-
-static void pata_s3c_hwinit(struct s3c_ide_info *info,
-				struct s3c_ide_platdata *pdata)
-{
-	switch (info->cpu_type) {
-	case TYPE_S3C64XX:
-		/* Configure as big endian */
-		pata_s3c_cfg_mode(info->sfr_addr);
-		pata_s3c_set_endian(info->ide_addr, 1);
-		pata_s3c_enable(info->ide_addr, true);
-		msleep(100);
-
-		/* Remove IRQ Status */
-		writel(0x1f, info->ide_addr + S3C_ATA_IRQ);
-		writel(0x1b, info->ide_addr + S3C_ATA_IRQ_MSK);
-		break;
-
-	case TYPE_S5PV210:
-		/* Configure as little endian */
-		pata_s3c_set_endian(info->ide_addr, 0);
-		pata_s3c_enable(info->ide_addr, true);
-		msleep(100);
-
-		/* Remove IRQ Status */
-		writel(0x3f, info->ide_addr + S3C_ATA_IRQ);
-		writel(0x3f, info->ide_addr + S3C_ATA_IRQ_MSK);
-		break;
-
-	default:
-		BUG();
-	}
-}
-
-static int __init pata_s3c_probe(struct platform_device *pdev)
-{
-	struct s3c_ide_platdata *pdata = dev_get_platdata(&pdev->dev);
-	struct device *dev = &pdev->dev;
-	struct s3c_ide_info *info;
-	struct resource *res;
-	struct ata_port *ap;
-	struct ata_host *host;
-	enum s3c_cpu_type cpu_type;
-	int ret;
-
-	cpu_type = platform_get_device_id(pdev)->driver_data;
-
-	info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
-	if (!info)
-		return -ENOMEM;
-
-	info->irq = platform_get_irq(pdev, 0);
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-	info->ide_addr = devm_ioremap_resource(dev, res);
-	if (IS_ERR(info->ide_addr))
-		return PTR_ERR(info->ide_addr);
-
-	info->clk = devm_clk_get(&pdev->dev, "cfcon");
-	if (IS_ERR(info->clk)) {
-		dev_err(dev, "failed to get access to cf controller clock\n");
-		ret = PTR_ERR(info->clk);
-		info->clk = NULL;
-		return ret;
-	}
-
-	clk_enable(info->clk);
-
-	/* init ata host */
-	host = ata_host_alloc(dev, 1);
-	if (!host) {
-		dev_err(dev, "failed to allocate ide host\n");
-		ret = -ENOMEM;
-		goto stop_clk;
-	}
-
-	ap = host->ports[0];
-	ap->pio_mask = ATA_PIO4;
-
-	if (cpu_type == TYPE_S3C64XX) {
-		ap->ops = &pata_s3c_port_ops;
-		info->sfr_addr = info->ide_addr + 0x1800;
-		info->ide_addr += 0x1900;
-		info->fifo_status_reg = 0x94;
-	} else {
-		ap->ops = &pata_s5p_port_ops;
-		info->fifo_status_reg = 0x84;
-	}
-
-	info->cpu_type = cpu_type;
-
-	if (info->irq <= 0) {
-		ap->flags |= ATA_FLAG_PIO_POLLING;
-		info->irq = 0;
-		ata_port_desc(ap, "no IRQ, using PIO polling\n");
-	}
-
-	ap->ioaddr.cmd_addr =  info->ide_addr + S3C_ATA_CMD;
-	ap->ioaddr.data_addr = info->ide_addr + S3C_ATA_PIO_DTR;
-	ap->ioaddr.error_addr = info->ide_addr + S3C_ATA_PIO_FED;
-	ap->ioaddr.feature_addr = info->ide_addr + S3C_ATA_PIO_FED;
-	ap->ioaddr.nsect_addr = info->ide_addr + S3C_ATA_PIO_SCR;
-	ap->ioaddr.lbal_addr = info->ide_addr + S3C_ATA_PIO_LLR;
-	ap->ioaddr.lbam_addr = info->ide_addr + S3C_ATA_PIO_LMR;
-	ap->ioaddr.lbah_addr = info->ide_addr + S3C_ATA_PIO_LHR;
-	ap->ioaddr.device_addr = info->ide_addr + S3C_ATA_PIO_DVR;
-	ap->ioaddr.status_addr = info->ide_addr + S3C_ATA_PIO_CSD;
-	ap->ioaddr.command_addr = info->ide_addr + S3C_ATA_PIO_CSD;
-	ap->ioaddr.altstatus_addr = info->ide_addr + S3C_ATA_PIO_DAD;
-	ap->ioaddr.ctl_addr = info->ide_addr + S3C_ATA_PIO_DAD;
-
-	ata_port_desc(ap, "mmio cmd 0x%llx ",
-			(unsigned long long)res->start);
-
-	host->private_data = info;
-
-	if (pdata && pdata->setup_gpio)
-		pdata->setup_gpio();
-
-	/* Set endianness and enable the interface */
-	pata_s3c_hwinit(info, pdata);
-
-	ret = ata_host_activate(host, info->irq,
-				info->irq ? pata_s3c_irq : NULL,
-				0, &pata_s3c_sht);
-	if (ret)
-		goto stop_clk;
-
-	return 0;
-
-stop_clk:
-	clk_disable(info->clk);
-	return ret;
-}
-
-static int __exit pata_s3c_remove(struct platform_device *pdev)
-{
-	struct ata_host *host = platform_get_drvdata(pdev);
-	struct s3c_ide_info *info = host->private_data;
-
-	ata_host_detach(host);
-
-	clk_disable(info->clk);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int pata_s3c_suspend(struct device *dev)
-{
-	struct ata_host *host = dev_get_drvdata(dev);
-
-	ata_host_suspend(host, PMSG_SUSPEND);
-	return 0;
-}
-
-static int pata_s3c_resume(struct device *dev)
-{
-	struct ata_host *host = dev_get_drvdata(dev);
-	struct s3c_ide_platdata *pdata = dev_get_platdata(dev);
-	struct s3c_ide_info *info = host->private_data;
-
-	pata_s3c_hwinit(info, pdata);
-	ata_host_resume(host);
-
-	return 0;
-}
-
-static const struct dev_pm_ops pata_s3c_pm_ops = {
-	.suspend	= pata_s3c_suspend,
-	.resume		= pata_s3c_resume,
-};
-#endif
-
-/* driver device registration */
-static const struct platform_device_id pata_s3c_driver_ids[] = {
-	{
-		.name		= "s3c64xx-pata",
-		.driver_data	= TYPE_S3C64XX,
-	}, {
-		.name		= "s5pv210-pata",
-		.driver_data	= TYPE_S5PV210,
-	},
-	{ }
-};
-
-MODULE_DEVICE_TABLE(platform, pata_s3c_driver_ids);
-
-static struct platform_driver pata_s3c_driver = {
-	.remove		= __exit_p(pata_s3c_remove),
-	.id_table	= pata_s3c_driver_ids,
-	.driver		= {
-		.name	= DRV_NAME,
-#ifdef CONFIG_PM_SLEEP
-		.pm	= &pata_s3c_pm_ops,
-#endif
-	},
-};
-
-module_platform_driver_probe(pata_s3c_driver, pata_s3c_probe);
-
-MODULE_AUTHOR("Abhilash Kesavan, <a.kesavan@samsung.com>");
-MODULE_DESCRIPTION("low-level driver for Samsung PATA controller");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
diff --git a/include/linux/platform_data/ata-samsung_cf.h b/include/linux/platform_data/ata-samsung_cf.h
deleted file mode 100644
index fccf969dc4da..000000000000
--- a/include/linux/platform_data/ata-samsung_cf.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2010 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- *
- * Samsung CF-ATA platform_device info
-*/
-
-#ifndef __ATA_SAMSUNG_CF_H
-#define __ATA_SAMSUNG_CF_H __FILE__
-
-/**
- * struct s3c_ide_platdata - S3C IDE driver platform data.
- * @setup_gpio: Setup the external GPIO pins to the right state for data
- * transfer in true-ide mode.
- */
-struct s3c_ide_platdata {
-	void (*setup_gpio)(void);
-};
-
-/*
- * s3c_ide_set_platdata() - Setup the platform specifc data for IDE driver.
- * @pdata: Platform data for IDE driver.
- */
-extern void s3c_ide_set_platdata(struct s3c_ide_platdata *pdata);
-
-/* architecture-specific IDE configuration */
-extern void s3c64xx_ide_setup_gpio(void);
-extern void s5pv210_ide_setup_gpio(void);
-
-#endif /*__ATA_SAMSUNG_CF_H */