| 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 | |
| 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 | |
| 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 | |
| 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 | } |