1 /* linux/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c
2 *
3 * Copyright 2008 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 * http://armlinux.simtec.co.uk/
6 *
7 * S3C64XX - Helper functions for setting up SDHCI device(s) GPIO (HSMMC)
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/types.h>
16 #include <linux/interrupt.h>
17 #include <linux/platform_device.h>
18 #include <linux/io.h>
19 #include <linux/gpio.h>
20
21 #include <plat/gpio-cfg.h>
22 #include <plat/sdhci.h>
23 #include <mach/gpio-samsung.h>
24
s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device * dev,int width)25 void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
26 {
27 struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
28
29 /* Set all the necessary GPG pins to special-function 2 */
30 s3c_gpio_cfgrange_nopull(S3C64XX_GPG(0), 2 + width, S3C_GPIO_SFN(2));
31
32 if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
33 s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
34 s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2));
35 }
36 }
37
s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device * dev,int width)38 void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
39 {
40 struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
41
42 /* Set all the necessary GPH pins to special-function 2 */
43 s3c_gpio_cfgrange_nopull(S3C64XX_GPH(0), 2 + width, S3C_GPIO_SFN(2));
44
45 if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
46 s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
47 s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3));
48 }
49 }
50
s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device * dev,int width)51 void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
52 {
53 /* Set all the necessary GPH pins to special-function 3 */
54 s3c_gpio_cfgrange_nopull(S3C64XX_GPH(6), width, S3C_GPIO_SFN(3));
55
56 /* Set all the necessary GPC pins to special-function 3 */
57 s3c_gpio_cfgrange_nopull(S3C64XX_GPC(4), 2, S3C_GPIO_SFN(3));
58 }
59