From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- arch/arm/mach-s3c64xx/setup-sdhci-gpio.c | 58 ++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 arch/arm/mach-s3c64xx/setup-sdhci-gpio.c (limited to 'arch/arm/mach-s3c64xx/setup-sdhci-gpio.c') diff --git a/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c b/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c new file mode 100644 index 000000000..f426b7a16 --- /dev/null +++ b/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c @@ -0,0 +1,58 @@ +/* linux/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c + * + * Copyright 2008 Simtec Electronics + * Ben Dooks + * http://armlinux.simtec.co.uk/ + * + * S3C64XX - Helper functions for setting up SDHCI device(s) GPIO (HSMMC) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +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)); +} -- cgit v1.2.3-54-g00ecf