From: Abhilash Kesavan <a.kesavan@xxxxxxxxxxx>
Following is added for the CF-ATA driver:
- Platform data strucure definition and instantiation
- Platform device definition and enabling code
- Platform-specific gpio setup code
- CF controller register definitions
Signed-off-by: Abhilash Kesavan <a.kesavan@xxxxxxxxxxx>
Signed-off-by: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
---
arch/arm/mach-s3c64xx/Kconfig | 7 +++
arch/arm/mach-s3c64xx/Makefile | 1 +
arch/arm/mach-s3c64xx/clock.c | 6 +++
arch/arm/mach-s3c64xx/include/mach/map.h | 5 ++-
arch/arm/mach-s3c64xx/include/mach/regs-clock.h | 5 ++
arch/arm/mach-s3c64xx/mach-smdk6410.c | 9 ++++
arch/arm/mach-s3c64xx/s3c6410.c | 1 +
arch/arm/mach-s3c64xx/setup-ide.c | 55 ++++++++++++++++++++++
arch/arm/plat-samsung/Kconfig | 5 ++
arch/arm/plat-samsung/Makefile | 1 +
arch/arm/plat-samsung/dev-ide.c | 52 +++++++++++++++++++++
arch/arm/plat-samsung/include/plat/ata.h | 38 +++++++++++++++
arch/arm/plat-samsung/include/plat/devs.h | 1 +
arch/arm/plat-samsung/include/plat/regs-ata.h | 56 +++++++++++++++++++++++
14 files changed, 241 insertions(+), 1 deletions(-)
create mode 100644 arch/arm/mach-s3c64xx/setup-ide.c
create mode 100644 arch/arm/plat-samsung/dev-ide.c
create mode 100644 arch/arm/plat-samsung/include/plat/ata.h
create mode 100644 arch/arm/plat-samsung/include/plat/regs-ata.h
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index f5a5972..c00401e 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -67,6 +67,11 @@ config S3C64XX_SETUP_SDHCI_GPIO
help
Common setup code for S3C64XX SDHCI GPIO configurations
+config S3C64XX_SETUP_IDE
+ bool
+ help
+ Common setup code for S3C64XX IDE.
+
# S36400 Macchine support
config MACH_SMDK6400
@@ -101,9 +106,11 @@ config MACH_SMDK6410
select S3C_DEV_USB_HSOTG
select S3C_DEV_WDT
select HAVE_S3C2410_WATCHDOG
+ select S3C_DEV_IDE
select S3C64XX_SETUP_SDHCI
select S3C64XX_SETUP_I2C1
select S3C64XX_SETUP_FB_24BPP
+ select S3C64XX_SETUP_IDE
help
Machine support for the Samsung SMDK6410
diff --git a/arch/arm/mach-s3c64xx/Makefile b/arch/arm/mach-s3c64xx/Makefile
index 9d10069..0d52c35 100644
--- a/arch/arm/mach-s3c64xx/Makefile
+++ b/arch/arm/mach-s3c64xx/Makefile
@@ -38,6 +38,7 @@ obj-$(CONFIG_S3C64XX_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_S3C64XX_SETUP_SDHCI) += setup-sdhci.o
obj-$(CONFIG_S3C64XX_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S3C64XX_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
+obj-$(CONFIG_S3C64XX_SETUP_IDE) += setup-ide.o
# PM
diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
index 7a4138b..9dac5c4 100644
--- a/arch/arm/mach-s3c64xx/clock.c
+++ b/arch/arm/mach-s3c64xx/clock.c
@@ -304,6 +304,12 @@ static struct clk init_clocks[] = {
.id = -1,
.parent = &clk_p,
.ctrlbit = S3C_CLKCON_PCLK_AC97,
+ }, {
+ .name = "cfcon",
+ .id = -1,
+ .parent = &clk_h,
+ .enable = s3c64xx_hclk_ctrl,
+ .ctrlbit = S3C_CLKCON_HCLK_IHOST,
}
};
diff --git a/arch/arm/mach-s3c64xx/include/mach/map.h b/arch/arm/mach-s3c64xx/include/mach/map.h
index e1eab3c..4b1ac79 100644
--- a/arch/arm/mach-s3c64xx/include/mach/map.h
+++ b/arch/arm/mach-s3c64xx/include/mach/map.h
@@ -86,6 +86,9 @@
#define S3C64XX_SZ_GPIO SZ_4K
#define S3C64XX_PA_SDRAM (0x50000000)
+
+#define S3C64XX_PA_CFCON (0x70300000)
+
#define S3C64XX_PA_VIC0 (0x71200000)
#define S3C64XX_PA_VIC1 (0x71300000)
@@ -118,7 +121,7 @@
#define S3C_VA_USB_HSPHY S3C64XX_VA_USB_HSPHY
#define S3C_PA_RTC S3C64XX_PA_RTC
#define S3C_PA_WDT S3C64XX_PA_WATCHDOG
-
+#define SAMSUNG_PA_CFCON S3C64XX_PA_CFCON
#define SAMSUNG_PA_ADC S3C64XX_PA_ADC
#endif /* __ASM_ARCH_6400_MAP_H */
diff --git a/arch/arm/mach-s3c64xx/include/mach/regs-clock.h b/arch/arm/mach-s3c64xx/include/mach/regs-clock.h
index 0114eb0..05332b9 100644
--- a/arch/arm/mach-s3c64xx/include/mach/regs-clock.h
+++ b/arch/arm/mach-s3c64xx/include/mach/regs-clock.h
@@ -34,6 +34,7 @@
#define S3C_SCLK_GATE S3C_CLKREG(0x38)
#define S3C_MEM0_GATE S3C_CLKREG(0x3C)
#define S3C6410_CLK_SRC2 S3C_CLKREG(0x10C)
+#define S3C_MEM_SYS_CFG S3C_CLKREG(0x120)
/* CLKDIV0 */
#define S3C6400_CLKDIV0_PCLK_MASK (0xf << 12)
@@ -154,4 +155,8 @@
#define S3C6400_CLKSRC_EPLL_MOUT_SHIFT (2)
#define S3C6400_CLKSRC_MFC (1 << 4)
+/* MEM_SYS_CFG */
+#define MEM_SYS_CFG_INDEP_CF 0x4000
+#define MEM_SYS_CFG_EBI_FIX_PRI_CFCON 0x30
+
#endif /* _PLAT_REGS_CLOCK_H */
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index d9a0355..cc1bb0f 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -56,6 +56,7 @@
#include <mach/regs-gpio.h>
#include <mach/regs-sys.h>
#include <mach/regs-srom.h>
+#include <plat/ata.h>
#include <plat/iic.h>
#include <plat/fb.h>
#include <plat/gpio-cfg.h>
@@ -242,6 +243,11 @@ static struct platform_device smdk6410_b_pwr_5v = {
};
#endif
+static struct s3c_ide_platdata smdk6410_ide_pdata __initdata = {
+ .setup_gpio = s3c_ide_setup_gpio,
+ .cfg_mode = s3c_ide_cfg_mode,
+};
+
static struct map_desc smdk6410_iodesc[] = {};
static struct platform_device *smdk6410_devices[] __initdata = {
@@ -267,6 +273,7 @@ static struct platform_device *smdk6410_devices[] __initdata = {
&s3c_device_adc,
&s3c_device_ts,
&s3c_device_wdt,
+ &s3c_device_cfcon,
};
#ifdef CONFIG_REGULATOR
@@ -665,6 +672,8 @@ static void __init smdk6410_machine_init(void)
i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
+ s3c_ide_set_platdata(&smdk6410_ide_pdata);
+
platform_add_devices(smdk6410_devices, ARRAY_SIZE(smdk6410_devices));
}
diff --git a/arch/arm/mach-s3c64xx/s3c6410.c b/arch/arm/mach-s3c64xx/s3c6410.c
index 014401c..1d1dce4 100644
--- a/arch/arm/mach-s3c64xx/s3c6410.c
+++ b/arch/arm/mach-s3c64xx/s3c6410.c
@@ -58,6 +58,7 @@ void __init s3c6410_map_io(void)
s3c_device_nand.name = "s3c6400-nand";
s3c_onenand_setname("s3c6410-onenand");
s3c64xx_onenand1_setname("s3c6410-onenand");
+ s3c_device_cfcon.name = "s3c6400-pata";
}
void __init s3c6410_init_clocks(int xtal)
diff --git a/arch/arm/mach-s3c64xx/setup-ide.c b/arch/arm/mach-s3c64xx/setup-ide.c
new file mode 100644
index 0000000..0bf4e5e
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/setup-ide.c
@@ -0,0 +1,55 @@
+/* linux/arch/arm/mach-s3c64xx/setup-ide.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * S3C64XX setup information for IDE
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+#include <mach/map.h>
+#include <mach/gpio.h>
+#include <mach/regs-clock.h>
+#include <plat/gpio-cfg.h>
+#include <plat/regs-ata.h>
+
+void s3c_ide_setup_gpio(void)
+{
+ u32 reg;
+ u32 gpio = 0;
+
+ reg = __raw_readl(S3C_MEM_SYS_CFG) & (~0x3f);
+
+ /* Independent CF interface, CF chip select configuration */
+ __raw_writel(reg | MEM_SYS_CFG_INDEP_CF |
+ MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S3C_MEM_SYS_CFG);
+
+ s3c_gpio_cfgpin(S3C64XX_GPB(4), S3C_GPIO_SFN(4));
+
+ /* Set XhiDATA[15:0] pins as CF Data[15:0] */
+ for (gpio = S3C64XX_GPK(0); gpio <= S3C64XX_GPK(15); gpio++)
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(5));
+
+ /* Set XhiADDR[2:0] pins as CF ADDR[2:0] */
+ for (gpio = S3C64XX_GPL(0); gpio <= S3C64XX_GPL(2); gpio++)
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(6));
+
+ /* Set Xhi ctrl pins as CF ctrl pins(IORDY, IOWR, IORD, CE[0:1]) */
+ s3c_gpio_cfgpin(S3C64XX_GPM(5), S3C_GPIO_SFN(1));
+ for (gpio = S3C64XX_GPM(0); gpio <= S3C64XX_GPM(4); gpio++)
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(6));
+}
+
+void s3c_ide_cfg_mode(void __iomem *sfrbase)
+{
+ /* Select true-ide as the internal operating mode*/
+ writel(readl(sfrbase + S3C_CFATA_MUX) | S3C_CFATA_MUX_TRUEIDE,
+ sfrbase + S3C_CFATA_MUX);
+}
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 2753fb3..6ec97fe 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -175,6 +175,11 @@ config S3C_DEV_I2C2
help
Compile in platform device definitions for I2C channel 2
+config S3C_DEV_IDE
+ bool
+ help
+ Compile in platform device definitions for IDE
+
config S3C_DEV_FB
bool
help
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index b1d82cc..252fc76 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -48,6 +48,7 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o
obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
+obj-$(CONFIG_S3C_DEV_IDE) += dev-ide.o
# DMA support
diff --git a/arch/arm/plat-samsung/dev-ide.c b/arch/arm/plat-samsung/dev-ide.c
new file mode 100644
index 0000000..c6b3292
--- /dev/null
+++ b/arch/arm/plat-samsung/dev-ide.c
@@ -0,0 +1,52 @@
+/* linux/arch/arm/plat-samsung/dev-ide.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * S3C CF-ATA device definition.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <mach/map.h>
+#include <plat/ata.h>
+
+static struct resource s3c_cfcon_resource[] = {
+ [0] = {
+ .start = SAMSUNG_PA_CFCON,
+ .end = SAMSUNG_PA_CFCON + SZ_1M - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_CFCON,
+ .end = IRQ_CFCON,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device s3c_device_cfcon = {
+ .name = "s3c-pata",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(s3c_cfcon_resource),
+ .resource = s3c_cfcon_resource,
+};
+
+void s3c_ide_set_platdata(struct s3c_ide_platdata *pdata)
+{
+ struct s3c_ide_platdata *pd;
+
+ pd = (struct s3c_ide_platdata *)kmemdup(pdata,
+ sizeof(struct s3c_ide_platdata), GFP_KERNEL);
+ if (!pd) {
+ printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+ return;
+ }
+ s3c_device_cfcon.dev.platform_data = pd;
+}
diff --git a/arch/arm/plat-samsung/include/plat/ata.h b/arch/arm/plat-samsung/include/plat/ata.h
new file mode 100644
index 0000000..aea11dc
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/ata.h
@@ -0,0 +1,38 @@
+/* arch/arm/plat-samsung/include/plat/ata.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * S3C - CF Controller platform_device info
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_PLAT_ATA_H
+#define __ASM_PLAT_ATA_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.
+ * @cfg_mode: Platform specific setup for configuring the CF controller
+ * in true-ide mode.
+ */
+struct s3c_ide_platdata {
+ void (*setup_gpio)(void);
+ void (*cfg_mode)(void __iomem *sfrbase);
+};
+
+/*
+ * 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 s3c_ide_setup_gpio(void);
+extern void s3c_ide_cfg_mode(void __iomem *sfrbase);
+
+#endif /*__ASM_PLAT_ATA_H */
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index e6144e4..e3fcddb 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -75,6 +75,7 @@ extern struct platform_device s5pc110_device_onenand;
extern struct platform_device s3c_device_usbgadget;
extern struct platform_device s3c_device_usb_hsotg;
+extern struct platform_device s3c_device_cfcon;
extern struct platform_device s5pv210_device_ac97;
extern struct platform_device s5pv210_device_pcm0;
diff --git a/arch/arm/plat-samsung/include/plat/regs-ata.h b/arch/arm/plat-samsung/include/plat/regs-ata.h
new file mode 100644
index 0000000..f73b267
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/regs-ata.h
@@ -0,0 +1,56 @@
+/* arch/arm/plat-samsung/include/plat/regs-ata.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * S3C CF-ATA register definitions
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_PLAT_REGS_ATA_H
+#define __ASM_PLAT_REGS_ATA_H __FILE__
+
+#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_STATUS S3C_CFATA_REG(0x4)
+#define S3C_ATA_CMD S3C_CFATA_REG(0x8)
+#define S3C_ATA_SWRST S3C_CFATA_REG(0xc)
+#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_MDMA_TIME S3C_CFATA_REG(0x28)
+#define S3C_ATA_PIO_TIME S3C_CFATA_REG(0x2c)
+#define S3C_ATA_UDMA_TIME S3C_CFATA_REG(0x30)
+#define S3C_ATA_XFR_NUM S3C_CFATA_REG(0x34)
+#define S3C_ATA_XFR_CNT S3C_CFATA_REG(0x38)
+#define S3C_ATA_TBUF_START S3C_CFATA_REG(0x3c)
+#define S3C_ATA_TBUF_SIZE S3C_CFATA_REG(0x40)
+#define S3C_ATA_SBUF_START S3C_CFATA_REG(0x44)
+#define S3C_ATA_SBUF_SIZE S3C_CFATA_REG(0x48)
+#define S3C_ATA_CADR_TBUF S3C_CFATA_REG(0x4c)
+#define S3C_ATA_CADR_SBUF S3C_CFATA_REG(0x50)
+#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_READY S3C_CFATA_REG(0x78)
+#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
+
+#endif /* __ASM_PLAT_REGS_ATA_H */
--
1.6.2.5
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
