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;
31 /* In case of 8 width, we should decrease the 2 */
35 /* Set all the necessary GPG0/GPG1 pins to special-function 0 */
36 s3c_gpio_cfgall_range(S5PC100_GPG0(0), 2 + num,
37 S3C_GPIO_SFN(2), S3C_GPIO_PULL_NONE);
40 s3c_gpio_cfgall_range(S5PC100_GPG1(0), 2,
41 S3C_GPIO_SFN(2), S3C_GPIO_PULL_NONE);
43 if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
44 s3c_gpio_setpull(S5PC100_GPG1(2), S3C_GPIO_PULL_UP);
45 s3c_gpio_cfgpin(S5PC100_GPG1(2), S3C_GPIO_SFN(2));
49 void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
51 struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
53 /* Set all the necessary GPG2 pins to special-function 2 */
54 s3c_gpio_cfgall_range(S5PC100_GPG2(0), 2 + width,
55 S3C_GPIO_SFN(2), S3C_GPIO_PULL_NONE);
57 if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
58 s3c_gpio_setpull(S5PC100_GPG2(6), S3C_GPIO_PULL_UP);
59 s3c_gpio_cfgpin(S5PC100_GPG2(6), S3C_GPIO_SFN(2));
63 void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
65 struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
67 /* Set all the necessary GPG3 pins to special-function 2 */
68 s3c_gpio_cfgall_range(S5PC100_GPG3(0), 2 + width,
69 S3C_GPIO_SFN(2), S3C_GPIO_PULL_NONE);
71 if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
72 s3c_gpio_setpull(S5PC100_GPG3(6), S3C_GPIO_PULL_UP);
73 s3c_gpio_cfgpin(S5PC100_GPG3(6), S3C_GPIO_SFN(2));