| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 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 | #include <linux/kernel.h> |
| 10 | #include <linux/types.h> |
| 11 | #include <linux/interrupt.h> |
| 12 | #include <linux/platform_device.h> |
| 13 | #include <linux/io.h> |
| 14 | #include <linux/gpio.h> |
| 15 | |
| 16 | #include <plat/gpio-cfg.h> |
| 17 | #include <plat/sdhci.h> |
| 18 | #include <mach/gpio-samsung.h> |
| 19 | |
| 20 | void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) |
| 21 | { |
| 22 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
| 23 | |
| 24 | /* Set all the necessary GPG pins to special-function 2 */ |
| 25 | s3c_gpio_cfgrange_nopull(S3C64XX_GPG(0), 2 + width, S3C_GPIO_SFN(2)); |
| 26 | |
| 27 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
| 28 | s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); |
| 29 | s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2)); |
| 30 | } |
| 31 | } |
| 32 | |
| 33 | void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) |
| 34 | { |
| 35 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
| 36 | |
| 37 | /* Set all the necessary GPH pins to special-function 2 */ |
| 38 | s3c_gpio_cfgrange_nopull(S3C64XX_GPH(0), 2 + width, S3C_GPIO_SFN(2)); |
| 39 | |
| 40 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
| 41 | s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); |
| 42 | s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3)); |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) |
| 47 | { |
| 48 | /* Set all the necessary GPH pins to special-function 3 */ |
| 49 | s3c_gpio_cfgrange_nopull(S3C64XX_GPH(6), width, S3C_GPIO_SFN(3)); |
| 50 | |
| 51 | /* Set all the necessary GPC pins to special-function 3 */ |
| 52 | s3c_gpio_cfgrange_nopull(S3C64XX_GPC(4), 2, S3C_GPIO_SFN(3)); |
| 53 | } |