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authorLinus Torvalds <torvalds@linux-foundation.org>2023-02-21 02:28:57 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-02-21 02:28:57 +0300
commitff0c7e18629b8bd64681313a88ce55e182c9fee6 (patch)
tree70efa650f6458514e1d7e5e3f72cc8f87fc5cf2c /drivers/ata
parent5b0ed5964928b0aaf0d644c17c886c7f5ea4bb3f (diff)
parenta1f925bc4fa899b3c0f2dcbc432d572c36e74e71 (diff)
downloadlinux-ff0c7e18629b8bd64681313a88ce55e182c9fee6.tar.xz
Merge tag 'arm-boardfile-remove-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC boardfile updates from Arnd Bergmann "Unused boardfile removal for 6.3 This is a follow-up to the deprecation of most of the old-style board files that was merged in linux-6.0, removing them for good. This branch is almost exclusively dead code removal based on those annotations. Some device driver removals went through separate subsystem trees, but the majority is in the same branch, in order to better handle dependencies between the patches and avoid breaking bisection. Unfortunately that leads to merge conflicts against other changes in the subsystem trees, but they should all be trivial to resolve by removing the files. See commit 7d0d3fa7339e ("Merge tag 'arm-boardfiles-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") for the description of which machines were marked unused and are now removed. The only removals that got postponed are Terastation WXL (mv78xx0) and Jornada720 (StrongARM1100), which turned out to still have potential users" * tag 'arm-boardfile-remove-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (91 commits) mmc: omap: drop TPS65010 dependency ARM: pxa: restore mfp-pxa320.h usb: ohci-omap: avoid unused-variable warning ARM: debug: remove references in DEBUG_UART_8250_SHIFT to removed configs ARM: s3c: remove obsolete s3c-cpu-freq header MAINTAINERS: adjust SAMSUNG SOC CLOCK DRIVERS after s3c24xx support removal MAINTAINERS: update file entries after arm multi-platform rework and mach-pxa removal ARM: remove CONFIG_UNUSED_BOARD_FILES mfd: remove htc-pasic3 driver w1: remove ds1wm driver usb: remove ohci-tmio driver fbdev: remove w100fb driver fbdev: remove tmiofb driver mmc: remove tmio_mmc driver mfd: remove ucb1400 support mfd: remove toshiba tmio drivers rtc: remove v3020 driver power: remove pda_power supply driver ASoC: pxa: remove unused board support pcmcia: remove unused pxa/sa1100 drivers ...
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/Kconfig19
-rw-r--r--drivers/ata/Makefile2
-rw-r--r--drivers/ata/pata_palmld.c137
-rw-r--r--drivers/ata/pata_samsung_cf.c662
4 files changed, 0 insertions, 820 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 9695c4404e26..0b6358a5b315 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -1083,15 +1083,6 @@ config PATA_OPTI
If unsure, say N.
-config PATA_PALMLD
- tristate "Palm LifeDrive PATA support"
- depends on MACH_PALMLD
- help
- This option enables support for Palm LifeDrive's internal ATA
- port via the new ATA layer.
-
- If unsure, say N.
-
config PATA_PCMCIA
tristate "PCMCIA PATA support"
depends on PCMCIA
@@ -1145,16 +1136,6 @@ 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..4ee5c0761d90 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -105,12 +105,10 @@ obj-$(CONFIG_PATA_MPIIX) += pata_mpiix.o
obj-$(CONFIG_PATA_NS87410) += pata_ns87410.o
obj-$(CONFIG_PATA_OPTI) += pata_opti.o
obj-$(CONFIG_PATA_PCMCIA) += pata_pcmcia.o
-obj-$(CONFIG_PATA_PALMLD) += pata_palmld.o
obj-$(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_palmld.c b/drivers/ata/pata_palmld.c
deleted file mode 100644
index 51caa2a427dd..000000000000
--- a/drivers/ata/pata_palmld.c
+++ /dev/null
@@ -1,137 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * drivers/ata/pata_palmld.c
- *
- * Driver for IDE channel in Palm LifeDrive
- *
- * Based on research of:
- * Alex Osborne <ato@meshy.org>
- *
- * Rewrite for mainline:
- * Marek Vasut <marek.vasut@gmail.com>
- *
- * Rewritten version based on pata_ixp4xx_cf.c:
- * ixp4xx PATA/Compact Flash driver
- * Copyright (C) 2006-07 Tower Technologies
- * Author: Alessandro Zummo <a.zummo@towertech.it>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/libata.h>
-#include <linux/irq.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-#include <linux/gpio/consumer.h>
-
-#include <scsi/scsi_host.h>
-
-#define DRV_NAME "pata_palmld"
-
-struct palmld_pata {
- struct ata_host *host;
- struct gpio_desc *power;
- struct gpio_desc *reset;
-};
-
-static struct scsi_host_template palmld_sht = {
- ATA_PIO_SHT(DRV_NAME),
-};
-
-static struct ata_port_operations palmld_port_ops = {
- .inherits = &ata_sff_port_ops,
- .sff_data_xfer = ata_sff_data_xfer32,
- .cable_detect = ata_cable_40wire,
-};
-
-static int palmld_pata_probe(struct platform_device *pdev)
-{
- struct palmld_pata *lda;
- struct ata_port *ap;
- void __iomem *mem;
- struct device *dev = &pdev->dev;
- int ret;
-
- lda = devm_kzalloc(dev, sizeof(*lda), GFP_KERNEL);
- if (!lda)
- return -ENOMEM;
-
- /* allocate host */
- lda->host = ata_host_alloc(dev, 1);
- if (!lda->host)
- return -ENOMEM;
-
- /* remap drive's physical memory address */
- mem = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(mem))
- return PTR_ERR(mem);
-
- /* request and activate power and reset GPIOs */
- lda->power = devm_gpiod_get(dev, "power", GPIOD_OUT_HIGH);
- if (IS_ERR(lda->power))
- return PTR_ERR(lda->power);
- lda->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
- if (IS_ERR(lda->reset)) {
- gpiod_set_value(lda->power, 0);
- return PTR_ERR(lda->reset);
- }
-
- /* Assert reset to reset the drive */
- gpiod_set_value(lda->reset, 1);
- msleep(30);
- gpiod_set_value(lda->reset, 0);
- msleep(30);
-
- /* setup the ata port */
- ap = lda->host->ports[0];
- ap->ops = &palmld_port_ops;
- ap->pio_mask = ATA_PIO4;
- ap->flags |= ATA_FLAG_PIO_POLLING;
-
- /* memory mapping voodoo */
- ap->ioaddr.cmd_addr = mem + 0x10;
- ap->ioaddr.altstatus_addr = mem + 0xe;
- ap->ioaddr.ctl_addr = mem + 0xe;
-
- /* start the port */
- ata_sff_std_ports(&ap->ioaddr);
-
- /* activate host */
- ret = ata_host_activate(lda->host, 0, NULL, IRQF_TRIGGER_RISING,
- &palmld_sht);
- /* power down on failure */
- if (ret) {
- gpiod_set_value(lda->power, 0);
- return ret;
- }
-
- platform_set_drvdata(pdev, lda);
- return 0;
-}
-
-static int palmld_pata_remove(struct platform_device *pdev)
-{
- struct palmld_pata *lda = platform_get_drvdata(pdev);
-
- ata_platform_remove_one(pdev);
-
- /* power down the HDD */
- gpiod_set_value(lda->power, 0);
-
- return 0;
-}
-
-static struct platform_driver palmld_pata_platform_driver = {
- .driver = {
- .name = DRV_NAME,
- },
- .probe = palmld_pata_probe,
- .remove = palmld_pata_remove,
-};
-
-module_platform_driver(palmld_pata_platform_driver);
-
-MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
-MODULE_DESCRIPTION("PalmLD PATA driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);
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);