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ARM: S5PV210: add common HSMMC device helpers 

This patch adds sdhci platform helpers required by sdhci-s3c driver.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Marek Szyprowski 2010-05-20 08:13:07 +02:00 committed by Ben Dooks
parent c8d833bf58
commit e6f66a9f96
7 changed files with 256 additions and 0 deletions
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21
arch/arm/mach-s5pv210/Kconfig
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@ -25,11 +25,32 @@ config MACH_AQUILA
help
Machine support for the Samsung Aquila target based on S5PC110 SoC
config S5PV210_SETUP_I2C1
bool
help
Common setup code for i2c bus 1.
config S5PV210_SETUP_I2C2
bool
help
Common setup code for i2c bus 2.
config S5PV210_SETUP_FB_24BPP
bool
help
Common setup code for S5PV210 with an 24bpp RGB display helper.
config S5PV210_SETUP_SDHCI
bool
select S5PV210_SETUP_SDHCI_GPIO
help
Internal helper functions for S5PV210 based SDHCI systems
config S5PV210_SETUP_SDHCI_GPIO
bool
help
Common setup code for SDHCI gpio.
config MACH_SMDKV210
bool "SMDKV210"
select CPU_S5PV210

2
arch/arm/mach-s5pv210/Makefile
View File

@ -27,3 +27,5 @@ obj-y += dev-audio.o
obj-$(CONFIG_S5PV210_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S5PV210_SETUP_I2C1) += setup-i2c1.o
obj-$(CONFIG_S5PV210_SETUP_I2C2) += setup-i2c2.o
obj-$(CONFIG_S5PV210_SETUP_SDHCI) += setup-sdhci.o
obj-$(CONFIG_S5PV210_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o

6
arch/arm/mach-s5pv210/cpu.c
View File

@ -33,6 +33,7 @@
#include <plat/clock.h>
#include <plat/s5pv210.h>
#include <plat/iic-core.h>
#include <plat/sdhci.h>
/* Initial IO mappings */
@ -77,6 +78,11 @@ void __init s5pv210_map_io(void)
{
iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
/* initialise device information early */
s5pv210_default_sdhci0();
s5pv210_default_sdhci1();
s5pv210_default_sdhci2();
/* the i2c devices are directly compatible with s3c2440 */
s3c_i2c0_setname("s3c2440-i2c");
s3c_i2c1_setname("s3c2440-i2c");

5
arch/arm/mach-s5pv210/include/mach/map.h
View File

@ -51,6 +51,8 @@
#define S5PV210_PA_FB (0xF8000000)
#define S5PV210_PA_HSMMC(x) (0xEB000000 + ((x) * 0x100000))
#define S5PV210_PA_VIC0 (0xF2000000)
#define S5P_PA_VIC0 S5PV210_PA_VIC0
@ -81,6 +83,9 @@
/* compatibiltiy defines. */
#define S3C_PA_UART S5PV210_PA_UART
#define S3C_PA_HSMMC0 S5PV210_PA_HSMMC(0)
#define S3C_PA_HSMMC1 S5PV210_PA_HSMMC(1)
#define S3C_PA_HSMMC2 S5PV210_PA_HSMMC(2)
#define S3C_PA_IIC S5PV210_PA_IIC0
#define S3C_PA_IIC1 S5PV210_PA_IIC1
#define S3C_PA_IIC2 S5PV210_PA_IIC2

104
arch/arm/mach-s5pv210/setup-sdhci-gpio.c Normal file
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@ -0,0 +1,104 @@
/* linux/arch/arm/plat-s5pc1xx/setup-sdhci-gpio.c
*
* Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5PV210 - 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/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <mach/gpio.h>
#include <plat/gpio-cfg.h>
#include <plat/regs-sdhci.h>
void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
{
unsigned int gpio;
/* Set all the necessary GPG0/GPG1 pins to special-function 2 */
for (gpio = S5PV210_GPG0(0); gpio < S5PV210_GPG0(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
switch (width) {
case 8:
/* GPG1[3:6] special-funtion 3 */
for (gpio = S5PV210_GPG1(3); gpio <= S5PV210_GPG1(6); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
case 4:
/* GPG0[3:6] special-funtion 2 */
for (gpio = S5PV210_GPG0(3); gpio <= S5PV210_GPG0(6); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
default:
break;
}
s3c_gpio_setpull(S5PV210_GPG0(2), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5PV210_GPG0(2), S3C_GPIO_SFN(2));
}
void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
{
unsigned int gpio;
/* Set all the necessary GPG1[0:1] pins to special-function 2 */
for (gpio = S5PV210_GPG1(0); gpio < S5PV210_GPG1(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
/* Data pin GPG1[3:6] to special-function 2 */
for (gpio = S5PV210_GPG1(3); gpio <= S5PV210_GPG1(6); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
s3c_gpio_setpull(S5PV210_GPG1(2), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5PV210_GPG1(2), S3C_GPIO_SFN(2));
}
void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
{
unsigned int gpio;
/* Set all the necessary GPG2[0:1] pins to special-function 2 */
for (gpio = S5PV210_GPG2(0); gpio < S5PV210_GPG2(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
switch (width) {
case 8:
/* Data pin GPG3[3:6] to special-function 3 */
for (gpio = S5PV210_GPG3(3); gpio <= S5PV210_GPG3(6); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
case 4:
/* Data pin GPG2[3:6] to special-function 2 */
for (gpio = S5PV210_GPG2(3); gpio <= S5PV210_GPG2(6); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
default:
break;
}
s3c_gpio_setpull(S5PV210_GPG2(2), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5PV210_GPG2(2), S3C_GPIO_SFN(2));
}

63
arch/arm/mach-s5pv210/setup-sdhci.c Normal file
View File

@ -0,0 +1,63 @@
/* linux/arch/arm/mach-s5pv210/setup-sdhci.c
*
* Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5PV210 - Helper functions for settign up SDHCI device(s) (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/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include <plat/regs-sdhci.h>
#include <plat/sdhci.h>
/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */
char *s5pv210_hsmmc_clksrcs[4] = {
[0] = "hsmmc", /* HCLK */
[1] = "hsmmc", /* HCLK */
[2] = "sclk_mmc", /* mmc_bus */
/*[4] = reserved */
};
void s5pv210_setup_sdhci_cfg_card(struct platform_device *dev,
void __iomem *r,
struct mmc_ios *ios,
struct mmc_card *card)
{
u32 ctrl2, ctrl3;
/* don't need to alter anything acording to card-type */
writel(S3C64XX_SDHCI_CONTROL4_DRIVE_9mA, r + S3C64XX_SDHCI_CONTROL4);
ctrl2 = readl(r + S3C_SDHCI_CONTROL2);
ctrl2 &= S3C_SDHCI_CTRL2_SELBASECLK_MASK;
ctrl2 |= (S3C64XX_SDHCI_CTRL2_ENSTAASYNCCLR |
S3C64XX_SDHCI_CTRL2_ENCMDCNFMSK |
S3C_SDHCI_CTRL2_ENFBCLKRX |
S3C_SDHCI_CTRL2_DFCNT_NONE |
S3C_SDHCI_CTRL2_ENCLKOUTHOLD);
if (ios->clock < 25 * 1000000)
ctrl3 = (S3C_SDHCI_CTRL3_FCSEL3 |
S3C_SDHCI_CTRL3_FCSEL2 |
S3C_SDHCI_CTRL3_FCSEL1 |
S3C_SDHCI_CTRL3_FCSEL0);
else
ctrl3 = (S3C_SDHCI_CTRL3_FCSEL1 | S3C_SDHCI_CTRL3_FCSEL0);
writel(ctrl2, r + S3C_SDHCI_CONTROL2);
writel(ctrl3, r + S3C_SDHCI_CONTROL3);
}

55
arch/arm/plat-samsung/include/plat/sdhci.h
View File

@ -75,6 +75,9 @@ extern void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
extern void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
/* S3C6400 SDHCI setup */
@ -218,4 +221,56 @@ static inline void s5pc100_default_sdhci1(void) { }
static inline void s5pc100_default_sdhci2(void) { }
#endif /* CONFIG_S5PC100_SETUP_SDHCI */
/* S5PC110 SDHCI setup */
#ifdef CONFIG_S5PV210_SETUP_SDHCI
extern char *s5pv210_hsmmc_clksrcs[4];
extern void s5pv210_setup_sdhci_cfg_card(struct platform_device *dev,
void __iomem *r,
struct mmc_ios *ios,
struct mmc_card *card);
#ifdef CONFIG_S3C_DEV_HSMMC
static inline void s5pv210_default_sdhci0(void)
{
s3c_hsmmc0_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
s3c_hsmmc0_def_platdata.cfg_gpio = s5pv210_setup_sdhci0_cfg_gpio;
s3c_hsmmc0_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
}
#else
static inline void s5pc100_default_sdhci0(void) { }
#endif /* CONFIG_S3C_DEV_HSMMC */
#ifdef CONFIG_S3C_DEV_HSMMC1
static inline void s5pv210_default_sdhci1(void)
{
s3c_hsmmc1_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
s3c_hsmmc1_def_platdata.cfg_gpio = s5pv210_setup_sdhci1_cfg_gpio;
s3c_hsmmc1_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
}
#else
static inline void s5pv210_default_sdhci1(void) { }
#endif /* CONFIG_S3C_DEV_HSMMC1 */
#ifdef CONFIG_S3C_DEV_HSMMC2
static inline void s5pv210_default_sdhci2(void)
{
s3c_hsmmc2_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
s3c_hsmmc2_def_platdata.cfg_gpio = s5pv210_setup_sdhci2_cfg_gpio;
s3c_hsmmc2_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
}
#else
static inline void s5pv210_default_sdhci2(void) { }
#endif /* CONFIG_S3C_DEV_HSMMC2 */
#else
static inline void s5pv210_default_sdhci0(void) { }
static inline void s5pv210_default_sdhci1(void) { }
static inline void s5pv210_default_sdhci2(void) { }
#endif /* CONFIG_S5PC100_SETUP_SDHCI */
#endif /* __PLAT_S3C_SDHCI_H */