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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 | ||
20 | #include <mach/gpio.h> | |
21 | #include <plat/gpio-cfg.h> | |
22 | ||
23 | void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) | |
24 | { | |
25 | unsigned int gpio; | |
26 | unsigned int end; | |
27 | ||
28 | end = S3C64XX_GPG(2 + width); | |
29 | ||
30 | /* Set all the necessary GPG pins to special-function 0 */ | |
31 | for (gpio = S3C64XX_GPG(0); gpio < end; gpio++) { | |
32 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); | |
33 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
34 | } | |
35 | ||
36 | s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); | |
37 | s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2)); | |
38 | } | |
39 | ||
40 | void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) | |
41 | { | |
42 | unsigned int gpio; | |
43 | unsigned int end; | |
44 | ||
45 | end = S3C64XX_GPH(2 + width); | |
46 | ||
47 | /* Set all the necessary GPG pins to special-function 0 */ | |
48 | for (gpio = S3C64XX_GPH(0); gpio < end; gpio++) { | |
49 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); | |
50 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
51 | } | |
52 | ||
53 | s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); | |
54 | s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3)); | |
55 | } |