1 /* linux/arch/arm/plat-s5pc100/setup-sdhci-gpio.c
3 * Copyright 2009 Samsung Eletronics
5 * S5PC100 - Helper functions for setting up SDHCI device(s) GPIO (HSMMC)
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <linux/kernel.h>
13 #include <linux/types.h>
14 #include <linux/interrupt.h>
15 #include <linux/platform_device.h>
17 #include <linux/gpio.h>
18 #include <linux/mmc/host.h>
19 #include <linux/mmc/card.h>
21 #include <plat/gpio-cfg.h>
22 #include <plat/regs-sdhci.h>
23 #include <plat/sdhci.h>
25 void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
27 struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
33 /* In case of 8 width, we should decrease the 2 */
37 end = S5PC100_GPG0(2 + num);
39 /* Set all the necessary GPG0/GPG1 pins to special-function 0 */
40 s3c_gpio_cfgpin_range(S5PC100_GPG0(0), 2 + num, S3C_GPIO_SFN(2));
41 for (gpio = S5PC100_GPG0(0); gpio < end; gpio++)
42 s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
45 for (gpio = S5PC100_GPG1(0); gpio <= S5PC100_GPG1(1); gpio++) {
46 s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
47 s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
51 if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
52 s3c_gpio_setpull(S5PC100_GPG1(2), S3C_GPIO_PULL_UP);
53 s3c_gpio_cfgpin(S5PC100_GPG1(2), S3C_GPIO_SFN(2));
57 void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
59 struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
63 end = S5PC100_GPG2(2 + width);
65 /* Set all the necessary GPG2 pins to special-function 2 */
66 s3c_gpio_cfgpin_range(S5PC100_GPG2(0), 2 + width, S3C_GPIO_SFN(2));
67 for (gpio = S5PC100_GPG2(0); gpio < end; gpio++)
68 s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
70 if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
71 s3c_gpio_setpull(S5PC100_GPG2(6), S3C_GPIO_PULL_UP);
72 s3c_gpio_cfgpin(S5PC100_GPG2(6), S3C_GPIO_SFN(2));
76 void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
78 struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
82 end = S5PC100_GPG3(2 + width);
84 /* Set all the necessary GPG3 pins to special-function 2 */
85 s3c_gpio_cfgpin_range(S5PC100_GPG3(0), 2 + width, S3C_GPIO_SFN(2));
86 for (gpio = S5PC100_GPG3(0); gpio < end; gpio++)
87 s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
89 if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
90 s3c_gpio_setpull(S5PC100_GPG3(6), S3C_GPIO_PULL_UP);
91 s3c_gpio_cfgpin(S5PC100_GPG3(6), S3C_GPIO_SFN(2));