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/* linux/arch/arm/plat-s5pc100/setup-sdhci-gpio.c
*
* Copyright 2009 Samsung Eletronics
*
* S5PC100 - 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>
void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
{
unsigned int gpio;
unsigned int end;
unsigned int num;
num = width;
/* In case of 8 width, we should decrease the 2 */
if (width == 8)
num = width - 2;
end = S5PC100_GPG0(2 + num);
/* Set all the necessary GPG0/GPG1 pins to special-function 0 */
for (gpio = S5PC100_GPG0(0); gpio < end; gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
if (width == 8) {
for (gpio = S5PC100_GPG1(0); gpio <= S5PC100_GPG1(1); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
}
s3c_gpio_setpull(S5PC100_GPG1(2), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5PC100_GPG1(2), S3C_GPIO_SFN(2));
}
void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
{
unsigned int gpio;
unsigned int end;
end = S5PC100_GPG2(2 + width);
/* Set all the necessary GPG2 pins to special-function 2 */
for (gpio = S5PC100_GPG2(0); gpio < end; gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
s3c_gpio_setpull(S5PC100_GPG2(6), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5PC100_GPG2(6), S3C_GPIO_SFN(2));
}
void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
{
unsigned int gpio;
unsigned int end;
end = S5PC100_GPG3(2 + width);
/* Set all the necessary GPG3 pins to special-function 2 */
for (gpio = S5PC100_GPG3(0); gpio < end; gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
s3c_gpio_setpull(S5PC100_GPG3(6), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S5PC100_GPG3(6), S3C_GPIO_SFN(2));
}
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