setup-sdhci-gpio.c
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/* linux/arch/arm/mach-exynos4/setup-sdhci-gpio.c
*
* Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* EXYNOS4 - 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/gpio.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <plat/gpio-cfg.h>
#include <plat/regs-sdhci.h>
#include <plat/sdhci.h>
void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
unsigned int gpio;
/* Set all the necessary GPK0[0:1] pins to special-function 2 */
for (gpio = EXYNOS4_GPK0(0); gpio < EXYNOS4_GPK0(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
switch (width) {
case 8:
for (gpio = EXYNOS4_GPK1(3); gpio <= EXYNOS4_GPK1(6); gpio++) {
/* Data pin GPK1[3:6] to special-function 3 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
case 4:
for (gpio = EXYNOS4_GPK0(3); gpio <= EXYNOS4_GPK0(6); gpio++) {
/* Data pin GPK0[3:6] to special-function 2 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
default:
break;
}
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
s3c_gpio_cfgpin(EXYNOS4_GPK0(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(EXYNOS4_GPK0(2), S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
}
void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
unsigned int gpio;
/* Set all the necessary GPK1[0:1] pins to special-function 2 */
for (gpio = EXYNOS4_GPK1(0); gpio < EXYNOS4_GPK1(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
for (gpio = EXYNOS4_GPK1(3); gpio <= EXYNOS4_GPK1(6); gpio++) {
/* Data pin GPK1[3:6] to special-function 2 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
s3c_gpio_cfgpin(EXYNOS4_GPK1(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(EXYNOS4_GPK1(2), S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
}
void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
unsigned int gpio;
/* Set all the necessary GPK2[0:1] pins to special-function 2 */
for (gpio = EXYNOS4_GPK2(0); gpio < EXYNOS4_GPK2(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
switch (width) {
case 8:
for (gpio = EXYNOS4_GPK3(3); gpio <= EXYNOS4_GPK3(6); gpio++) {
/* Data pin GPK3[3:6] to special-function 3 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
case 4:
for (gpio = EXYNOS4_GPK2(3); gpio <= EXYNOS4_GPK2(6); gpio++) {
/* Data pin GPK2[3:6] to special-function 2 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
default:
break;
}
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
s3c_gpio_cfgpin(EXYNOS4_GPK2(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(EXYNOS4_GPK2(2), S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
}
void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *dev, int width)
{
struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
unsigned int gpio;
/* Set all the necessary GPK3[0:1] pins to special-function 2 */
for (gpio = EXYNOS4_GPK3(0); gpio < EXYNOS4_GPK3(2); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
for (gpio = EXYNOS4_GPK3(3); gpio <= EXYNOS4_GPK3(6); gpio++) {
/* Data pin GPK3[3:6] to special-function 2 */
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
s3c_gpio_cfgpin(EXYNOS4_GPK3(2), S3C_GPIO_SFN(2));
s3c_gpio_setpull(EXYNOS4_GPK3(2), S3C_GPIO_PULL_UP);
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
}
}