[PATCH 3/4] ARM: S5PC100: Add support for Compact Flash driver on SMDKC100
Kukjin Kim
kgene.kim at samsung.com
Thu May 27 04:22:03 EDT 2010
From: Abhilash Kesavan <a.kesavan at samsung.com>
Following is added for the CF-ATA driver:
- Platform data strucure instantiatio
- Platform device definition and enabling code
- Platform-specific gpio setup code
Signed-off-by: Abhilash Kesavan <a.kesavan at samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
---
arch/arm/mach-s5pc100/Kconfig | 7 ++
arch/arm/mach-s5pc100/Makefile | 1 +
arch/arm/mach-s5pc100/cpu.c | 1 +
arch/arm/mach-s5pc100/include/mach/irqs.h | 2 +-
arch/arm/mach-s5pc100/include/mach/map.h | 4 +
arch/arm/mach-s5pc100/include/mach/regs-clock.h | 3 +
arch/arm/mach-s5pc100/mach-smdkc100.c | 8 ++
arch/arm/mach-s5pc100/setup-ide.c | 79 +++++++++++++++++++++++
8 files changed, 104 insertions(+), 1 deletions(-)
create mode 100644 arch/arm/mach-s5pc100/setup-ide.c
diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig
index b2a11df..d030c95 100644
--- a/arch/arm/mach-s5pc100/Kconfig
+++ b/arch/arm/mach-s5pc100/Kconfig
@@ -36,17 +36,24 @@ config S5PC100_SETUP_SDHCI_GPIO
help
Common setup code for SDHCI gpio.
+config S5PC100_SETUP_IDE
+ bool
+ help
+ Common setup code for S5PC100 IDE GPIO configurations
+
config MACH_SMDKC100
bool "SMDKC100"
select CPU_S5PC100
select S3C_DEV_FB
select S3C_DEV_I2C1
+ select S3C_DEV_IDE
select S3C_DEV_HSMMC
select S3C_DEV_HSMMC1
select S3C_DEV_HSMMC2
select S5PC100_SETUP_FB_24BPP
select S5PC100_SETUP_I2C1
select S5PC100_SETUP_SDHCI
+ select S5PC100_SETUP_IDE
help
Machine support for the Samsung SMDKC100
diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile
index 543f3de..f192d1a 100644
--- a/arch/arm/mach-s5pc100/Makefile
+++ b/arch/arm/mach-s5pc100/Makefile
@@ -21,6 +21,7 @@ obj-$(CONFIG_S5PC100_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S5PC100_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_S5PC100_SETUP_SDHCI) += setup-sdhci.o
obj-$(CONFIG_S5PC100_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
+obj-$(CONFIG_S5PC100_SETUP_IDE) += setup-ide.o
# device support
obj-y += dev-audio.o
diff --git a/arch/arm/mach-s5pc100/cpu.c b/arch/arm/mach-s5pc100/cpu.c
index 7b5bdbc..7df6db0 100644
--- a/arch/arm/mach-s5pc100/cpu.c
+++ b/arch/arm/mach-s5pc100/cpu.c
@@ -92,6 +92,7 @@ void __init s5pc100_map_io(void)
s3c_i2c1_setname("s3c2440-i2c");
s3c_onenand_setname("s5pc100-onenand");
+ s3c_device_cfcon.name = "s5pc100-pata";
}
void __init s5pc100_init_clocks(int xtal)
diff --git a/arch/arm/mach-s5pc100/include/mach/irqs.h b/arch/arm/mach-s5pc100/include/mach/irqs.h
index 28aa551..bfcc0b9 100644
--- a/arch/arm/mach-s5pc100/include/mach/irqs.h
+++ b/arch/arm/mach-s5pc100/include/mach/irqs.h
@@ -38,7 +38,7 @@
#define IRQ_IEMIEC S5P_IRQ_VIC1(6)
#define IRQ_ONENAND S5P_IRQ_VIC1(7)
#define IRQ_NFC S5P_IRQ_VIC1(8)
-#define IRQ_CFC S5P_IRQ_VIC1(9)
+#define IRQ_CFCON S5P_IRQ_VIC1(9)
#define IRQ_UART0 S5P_IRQ_VIC1(10)
#define IRQ_UART1 S5P_IRQ_VIC1(11)
#define IRQ_UART2 S5P_IRQ_VIC1(12)
diff --git a/arch/arm/mach-s5pc100/include/mach/map.h b/arch/arm/mach-s5pc100/include/mach/map.h
index cadae43..c5f944a 100644
--- a/arch/arm/mach-s5pc100/include/mach/map.h
+++ b/arch/arm/mach-s5pc100/include/mach/map.h
@@ -61,6 +61,9 @@
#define S5PC100_PA_ONENAND (0xE7100000)
+/* CF Controller */
+#define S5PC100_PA_CFCON (0xE7800000)
+
/* DMA */
#define S5PC100_PA_MDMA (0xE8100000)
#define S5PC100_PA_PDMA0 (0xE9000000)
@@ -134,5 +137,6 @@
#define S3C_PA_ONENAND S5PC100_PA_ONENAND
#define S3C_PA_ONENAND_BUF S5PC100_PA_ONENAND_BUF
#define S3C_SZ_ONENAND_BUF S5PC100_SZ_ONENAND_BUF
+#define SAMSUNG_PA_CFCON S5PC100_PA_CFCON
#endif /* __ASM_ARCH_C100_MAP_H */
diff --git a/arch/arm/mach-s5pc100/include/mach/regs-clock.h b/arch/arm/mach-s5pc100/include/mach/regs-clock.h
index 5d27d28..bc92da2 100644
--- a/arch/arm/mach-s5pc100/include/mach/regs-clock.h
+++ b/arch/arm/mach-s5pc100/include/mach/regs-clock.h
@@ -71,7 +71,10 @@
#define S5P_CLKDIV1_PCLKD1_SHIFT (16)
#define S5PC100_SWRESET S5PC100_REG_OTHERS(0x000)
+#define S5PC100_MEM_SYS_CFG S5PC100_REG_OTHERS(0x200)
#define S5PC100_SWRESET_RESETVAL 0xc100
+#define MEM_SYS_CFG_EBI_FIX_PRI_CFCON 0x30
+
#endif /* __ASM_ARCH_REGS_CLOCK_H */
diff --git a/arch/arm/mach-s5pc100/mach-smdkc100.c b/arch/arm/mach-s5pc100/mach-smdkc100.c
index af22f82..e69ddf9 100644
--- a/arch/arm/mach-s5pc100/mach-smdkc100.c
+++ b/arch/arm/mach-s5pc100/mach-smdkc100.c
@@ -42,6 +42,7 @@
#include <plat/s5pc100.h>
#include <plat/fb.h>
#include <plat/iic.h>
+#include <plat/ata.h>
/* Following are default values for UCON, ULCON and UFCON UART registers */
#define S5PC100_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
@@ -149,6 +150,11 @@ static struct s3c_fb_platdata smdkc100_lcd_pdata __initdata = {
.setup_gpio = s5pc100_fb_gpio_setup_24bpp,
};
+static struct s3c_ide_platdata smdkc100_ide_pdata __initdata = {
+ .setup_gpio = s3c_ide_setup_gpio,
+ .cfg_mode = s3c_ide_cfg_mode,
+};
+
static struct platform_device *smdkc100_devices[] __initdata = {
&s3c_device_i2c0,
&s3c_device_i2c1,
@@ -159,6 +165,7 @@ static struct platform_device *smdkc100_devices[] __initdata = {
&smdkc100_lcd_powerdev,
&s5pc100_device_iis0,
&s5pc100_device_ac97,
+ &s3c_device_cfcon,
};
static void __init smdkc100_map_io(void)
@@ -177,6 +184,7 @@ static void __init smdkc100_machine_init(void)
i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
s3c_fb_set_platdata(&smdkc100_lcd_pdata);
+ s3c_ide_set_platdata(&smdkc100_ide_pdata);
/* LCD init */
gpio_request(S5PC100_GPD(0), "GPD");
diff --git a/arch/arm/mach-s5pc100/setup-ide.c b/arch/arm/mach-s5pc100/setup-ide.c
new file mode 100644
index 0000000..f4abb5a
--- /dev/null
+++ b/arch/arm/mach-s5pc100/setup-ide.c
@@ -0,0 +1,79 @@
+/* linux/arch/arm/mach-s5pc100/setup-ide.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * S5PC100 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/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;
+
+ /* Independent CF interface, CF chip select configuration */
+ reg = __raw_readl(S5PC100_MEM_SYS_CFG) & (~0x3f);
+ __raw_writel(reg | MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S5PC100_MEM_SYS_CFG);
+
+ /* CF_Add[0 - 2], CF_IORDY, CF_INTRQ, CF_DMARQ, CF_DMARST, CF_DMACK */
+ for (gpio = S5PC100_GPJ0(0); gpio <= S5PC100_GPJ0(7); gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(4));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ /*CF_Data[0 - 7] */
+ for (gpio = S5PC100_GPJ2(0); gpio <= S5PC100_GPJ2(7); gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(4));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ /* CF_Data[8 - 15] */
+ for (gpio = S5PC100_GPJ3(0); gpio <= S5PC100_GPJ3(7); gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(4));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ /* CF_CS0, CF_CS1, CF_IORD, CF_IOWR */
+ for (gpio = S5PC100_GPJ4(0); gpio <= S5PC100_GPJ4(3); gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(4));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ /* EBI_OE, EBI_WE */
+ for (gpio = S5PC100_GPK0(6); gpio <= S5PC100_GPK0(7); gpio++)
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0));
+
+ /* CF_OE, CF_WE */
+ for (gpio = S5PC100_GPK1(6); gpio <= S5PC100_GPK1(7); gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ }
+
+ /* CF_CD */
+ s3c_gpio_cfgpin(S5PC100_GPK3(5), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(S5PC100_GPK3(5), S3C_GPIO_PULL_NONE);
+}
+
+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);
+}
--
1.6.2.5
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