| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | // |
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| 3 | // Copyright 2008 Simtec Electronics |
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| 4 | // Ben Dooks <ben@simtec.co.uk> |
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| 5 | // http://armlinux.simtec.co.uk/ |
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| 6 | // |
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| 7 | // S3C64XX - Helper functions for setting up SDHCI device(s) GPIO (HSMMC) |
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| 8 | |
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| 9 | #include <linux/kernel.h> |
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| 10 | #include <linux/types.h> |
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| 11 | #include <linux/interrupt.h> |
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| 12 | #include <linux/platform_device.h> |
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| 13 | #include <linux/io.h> |
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| 14 | #include <linux/gpio.h> |
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| 15 | |
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| 16 | #include "gpio-cfg.h" |
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| 17 | #include "sdhci.h" |
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| 18 | #include "gpio-samsung.h" |
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| 19 | |
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| 20 | void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) |
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| 21 | { |
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| 22 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
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| 23 | |
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| 24 | /* Set all the necessary GPG pins to special-function 2 */ |
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| 25 | s3c_gpio_cfgrange_nopull(pin: S3C64XX_GPG(0), size: 2 + width, S3C_GPIO_SFN(2)); |
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| 26 | |
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| 27 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
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| 28 | s3c_gpio_setpull(pin: S3C64XX_GPG(6), S3C_GPIO_PULL_UP); |
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| 29 | s3c_gpio_cfgpin(pin: S3C64XX_GPG(6), S3C_GPIO_SFN(2)); |
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| 30 | } |
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| 31 | } |
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| 32 | |
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| 33 | void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) |
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| 34 | { |
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| 35 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
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| 36 | |
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| 37 | /* Set all the necessary GPH pins to special-function 2 */ |
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| 38 | s3c_gpio_cfgrange_nopull(pin: S3C64XX_GPH(0), size: 2 + width, S3C_GPIO_SFN(2)); |
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| 39 | |
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| 40 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
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| 41 | s3c_gpio_setpull(pin: S3C64XX_GPG(6), S3C_GPIO_PULL_UP); |
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| 42 | s3c_gpio_cfgpin(pin: S3C64XX_GPG(6), S3C_GPIO_SFN(3)); |
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| 43 | } |
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| 44 | } |
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| 45 | |
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| 46 | void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) |
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| 47 | { |
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| 48 | /* Set all the necessary GPH pins to special-function 3 */ |
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| 49 | s3c_gpio_cfgrange_nopull(pin: S3C64XX_GPH(6), size: width, S3C_GPIO_SFN(3)); |
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| 50 | |
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| 51 | /* Set all the necessary GPC pins to special-function 3 */ |
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| 52 | s3c_gpio_cfgrange_nopull(pin: S3C64XX_GPC(4), size: 2, S3C_GPIO_SFN(3)); |
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| 53 | } |
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| 54 | |
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