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ARM: S5P64X0: Add HSMMC setup for host Controller 

Adds support for HSMMC for S5P64X0 platform, performs
setup for host controller and related GPIO.

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Rajeshwari Shinde 2011-12-26 16:28:54 +09:00 committed by Kukjin Kim
parent 7d38af51d5
commit ebc433c289
5 changed files with 182 additions and 0 deletions
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24
arch/arm/mach-s5p64x0/Kconfig
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@ -41,6 +41,11 @@ config S5P64X0_SETUP_SPI
help
Common setup code for SPI GPIO configurations
config S5P64X0_SETUP_SDHCI_GPIO
bool
help
Common setup code for SDHCI gpio.
# machine support
config MACH_SMDK6440
@ -50,12 +55,16 @@ config MACH_SMDK6440
select S3C_DEV_I2C1
select S3C_DEV_RTC
select S3C_DEV_WDT
select S3C_DEV_HSMMC
select S3C_DEV_HSMMC1
select S3C_DEV_HSMMC2
select SAMSUNG_DEV_ADC
select SAMSUNG_DEV_BACKLIGHT
select SAMSUNG_DEV_PWM
select SAMSUNG_DEV_TS
select S5P64X0_SETUP_FB_24BPP
select S5P64X0_SETUP_I2C1
select S5P64X0_SETUP_SDHCI_GPIO
help
Machine support for the Samsung SMDK6440
@ -66,13 +75,28 @@ config MACH_SMDK6450
select S3C_DEV_I2C1
select S3C_DEV_RTC
select S3C_DEV_WDT
select S3C_DEV_HSMMC
select S3C_DEV_HSMMC1
select S3C_DEV_HSMMC2
select SAMSUNG_DEV_ADC
select SAMSUNG_DEV_BACKLIGHT
select SAMSUNG_DEV_PWM
select SAMSUNG_DEV_TS
select S5P64X0_SETUP_FB_24BPP
select S5P64X0_SETUP_I2C1
select S5P64X0_SETUP_SDHCI_GPIO
help
Machine support for the Samsung SMDK6450
menu "Use 8-bit SDHCI bus width"
config S5P64X0_SD_CH1_8BIT
bool "SDHCI Channel 1 (Slot 1)"
depends on MACH_SMDK6450 || MACH_SMDK6440
help
Support SDHCI Channel 1 8-bit bus.
If selected, Channel 2 is disabled.
endmenu
endif

1
arch/arm/mach-s5p64x0/Makefile
View File

@ -30,3 +30,4 @@ obj-y += dev-audio.o
obj-$(CONFIG_S5P64X0_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_S5P64X0_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S5P64X0_SETUP_SPI) += setup-spi.o
obj-$(CONFIG_S5P64X0_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o

9
arch/arm/mach-s5p64x0/cpu.c
View File

@ -40,6 +40,7 @@
#include <plat/s5p6450.h>
#include <plat/adc-core.h>
#include <plat/fb-core.h>
#include <plat/sdhci.h>
/* Initial IO mappings */
@ -112,6 +113,10 @@ void __init s5p6440_map_io(void)
s3c_adc_setname("s3c64xx-adc");
s3c_fb_setname("s5p64x0-fb");
s5p64x0_default_sdhci0();
s5p64x0_default_sdhci1();
s5p6440_default_sdhci2();
iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc));
iotable_init(s5p6440_iodesc, ARRAY_SIZE(s5p6440_iodesc));
init_consistent_dma_size(SZ_8M);
@ -123,6 +128,10 @@ void __init s5p6450_map_io(void)
s3c_adc_setname("s3c64xx-adc");
s3c_fb_setname("s5p64x0-fb");
s5p64x0_default_sdhci0();
s5p64x0_default_sdhci1();
s5p6450_default_sdhci2();
iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc));
iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6450_iodesc));
init_consistent_dma_size(SZ_8M);

104
arch/arm/mach-s5p64x0/setup-sdhci-gpio.c Normal file
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@ -0,0 +1,104 @@
/* linux/arch/arm/mach-s5p64x0/setup-sdhci-gpio.c
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P64X0 - Helper functions for setting up SDHCI device(s) GPIO (HSMMC)
*
* 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/platform_device.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <mach/regs-gpio.h>
#include <mach/regs-clock.h>
#include <plat/gpio-cfg.h>
#include <plat/sdhci.h>
#include <plat/cpu.h>
void s5p64x0_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
/* Set all the necessary GPG pins to special-function 2 */
if (soc_is_s5p6450())
s3c_gpio_cfgrange_nopull(S5P6450_GPG(0), 2 + width,
S3C_GPIO_SFN(2));
else
s3c_gpio_cfgrange_nopull(S5P6440_GPG(0), 2 + width,
S3C_GPIO_SFN(2));
/* Set GPG[6] pin to special-function 2 - MMC0 CDn */
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
if (soc_is_s5p6450()) {
s3c_gpio_setpull(S5P6450_GPG(6), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5P6450_GPG(6), S3C_GPIO_SFN(2));
} else {
s3c_gpio_setpull(S5P6440_GPG(6), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5P6440_GPG(6), S3C_GPIO_SFN(2));
}
}
}
void s5p64x0_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
/* Set GPH[0:1] pins to special-function 2 - CLK and CMD */
if (soc_is_s5p6450())
s3c_gpio_cfgrange_nopull(S5P6450_GPH(0), 2, S3C_GPIO_SFN(2));
else
s3c_gpio_cfgrange_nopull(S5P6440_GPH(0), 2 , S3C_GPIO_SFN(2));
switch (width) {
case 8:
/* Set data pins GPH[6:9] special-function 2 */
if (soc_is_s5p6450())
s3c_gpio_cfgrange_nopull(S5P6450_GPH(6), 4,
S3C_GPIO_SFN(2));
else
s3c_gpio_cfgrange_nopull(S5P6440_GPH(6), 4,
S3C_GPIO_SFN(2));
case 4:
/* set data pins GPH[2:5] special-function 2 */
if (soc_is_s5p6450())
s3c_gpio_cfgrange_nopull(S5P6450_GPH(2), 4,
S3C_GPIO_SFN(2));
else
s3c_gpio_cfgrange_nopull(S5P6440_GPH(2), 4,
S3C_GPIO_SFN(2));
default:
break;
}
/* Set GPG[6] pin to special-funtion 3 : MMC1 CDn */
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
if (soc_is_s5p6450()) {
s3c_gpio_setpull(S5P6450_GPG(6), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5P6450_GPG(6), S3C_GPIO_SFN(3));
} else {
s3c_gpio_setpull(S5P6440_GPG(6), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5P6440_GPG(6), S3C_GPIO_SFN(3));
}
}
}
void s5p6440_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
{
/* Set GPC[4:5] pins to special-function 3 - CLK and CMD */
s3c_gpio_cfgrange_nopull(S5P6440_GPC(4), 2, S3C_GPIO_SFN(3));
/* Set data pins GPH[6:9] pins to special-function 3 */
s3c_gpio_cfgrange_nopull(S5P6440_GPH(6), 4, S3C_GPIO_SFN(3));
}
void s5p6450_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
{
/* Set all the necessary GPG pins to special-function 3 */
s3c_gpio_cfgrange_nopull(S5P6450_GPG(7), 2 + width, S3C_GPIO_SFN(3));
}

44
arch/arm/plat-samsung/include/plat/sdhci.h
View File

@ -123,6 +123,10 @@ extern void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
extern void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
extern void s5p64x0_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s5p64x0_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s5p6440_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
extern void s5p6450_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
/* S3C2416 SDHCI setup */
@ -146,6 +150,7 @@ static inline void s3c2416_default_sdhci0(void) { }
static inline void s3c2416_default_sdhci1(void) { }
#endif /* CONFIG_S3C2416_SETUP_SDHCI */
/* S3C64XX SDHCI setup */
#ifdef CONFIG_S3C64XX_SETUP_SDHCI
@ -201,6 +206,45 @@ static inline void s3c6400_default_sdhci2(void) { }
#endif /* CONFIG_S3C64XX_SETUP_SDHCI */
/* S5P64X0 SDHCI setup */
#ifdef CONFIG_S5P64X0_SETUP_SDHCI
static inline void s5p64x0_default_sdhci0(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC
s3c_hsmmc0_def_platdata.cfg_gpio = s5p64x0_setup_sdhci0_cfg_gpio;
#endif
}
static inline void s5p64x0_default_sdhci1(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC1
s3c_hsmmc1_def_platdata.cfg_gpio = s5p64x0_setup_sdhci1_cfg_gpio;
#endif
}
static inline void s5p6440_default_sdhci2(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC2
s3c_hsmmc2_def_platdata.cfg_gpio = s5p6440_setup_sdhci2_cfg_gpio;
#endif
}
static inline void s5p6450_default_sdhci2(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC2
s3c_hsmmc2_def_platdata.cfg_gpio = s5p6450_setup_sdhci2_cfg_gpio;
#endif
}
#else
static inline void s5p64x0_default_sdhci0(void) { }
static inline void s5p64x0_default_sdhci1(void) { }
static inline void s5p6440_default_sdhci2(void) { }
static inline void s5p6450_default_sdhci2(void) { }
#endif /* CONFIG_S5P64X0_SETUP_SDHCI */
/* S5PC100 SDHCI setup */
#ifdef CONFIG_S5PC100_SETUP_SDHCI