| Ben Dooks | 4faf6867 | 2009-03-25 11:01:24 +0000 | [diff] [blame] | 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 | } |
| Maurus Cuelenaere | 92b118f | 2009-11-23 13:34:46 +0100 | [diff] [blame^] | 56 | |
| 57 | void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) |
| 58 | { |
| 59 | unsigned int gpio; |
| 60 | unsigned int end; |
| 61 | |
| 62 | end = S3C64XX_GPH(6 + width); |
| 63 | |
| 64 | /* Set all the necessary GPH pins to special-function 1 */ |
| 65 | for (gpio = S3C64XX_GPH(6); gpio < end; gpio++) { |
| 66 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); |
| 67 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); |
| 68 | } |
| 69 | |
| 70 | /* Set all the necessary GPC pins to special-function 1 */ |
| 71 | for (gpio = S3C64XX_GPC(4); gpio < S3C64XX_GPC(6); gpio++) { |
| 72 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); |
| 73 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); |
| 74 | } |
| 75 | } |