| // SPDX-License-Identifier: GPL-2.0 |
| // |
| // Copyright 2008 Simtec Electronics |
| // Ben Dooks <ben@simtec.co.uk> |
| // http://armlinux.simtec.co.uk/ |
| // |
| // S3C64XX - Helper functions for setting up SDHCI device(s) GPIO (HSMMC) |
| |
| #include <linux/kernel.h> |
| #include <linux/types.h> |
| #include <linux/interrupt.h> |
| #include <linux/platform_device.h> |
| #include <linux/io.h> |
| #include <linux/gpio.h> |
| |
| #include <plat/gpio-cfg.h> |
| #include <plat/sdhci.h> |
| #include <mach/gpio-samsung.h> |
| |
| void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) |
| { |
| struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
| |
| /* Set all the necessary GPG pins to special-function 2 */ |
| s3c_gpio_cfgrange_nopull(S3C64XX_GPG(0), 2 + width, S3C_GPIO_SFN(2)); |
| |
| if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
| s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); |
| s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2)); |
| } |
| } |
| |
| void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) |
| { |
| struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
| |
| /* Set all the necessary GPH pins to special-function 2 */ |
| s3c_gpio_cfgrange_nopull(S3C64XX_GPH(0), 2 + width, S3C_GPIO_SFN(2)); |
| |
| if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
| s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); |
| s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3)); |
| } |
| } |
| |
| void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) |
| { |
| /* Set all the necessary GPH pins to special-function 3 */ |
| s3c_gpio_cfgrange_nopull(S3C64XX_GPH(6), width, S3C_GPIO_SFN(3)); |
| |
| /* Set all the necessary GPC pins to special-function 3 */ |
| s3c_gpio_cfgrange_nopull(S3C64XX_GPC(4), 2, S3C_GPIO_SFN(3)); |
| } |