diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-02 23:40:15 +0000 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-02 23:40:15 +0000 |
commit | 882d01f96bc1909455696aae6eb7ce4df3e908c8 (patch) | |
tree | 06e5789cb33d0547c2497fd4d0327dc9e8614d37 /arch/arm/mach-s3c64xx/setup-sdhci-gpio.c | |
parent | 64ed28a87a0c075e91c1c5b0fe7d225a6cc6ae39 (diff) | |
parent | d608c738bb8fb37e5fbfcdef9c566764f2fea086 (diff) | |
download | linux-next-882d01f96bc1909455696aae6eb7ce4df3e908c8.tar.gz |
Merge branch 'for-rmk/samsung5' of git://git.fluff.org/bjdooks/linux into devel-stable
Conflicts:
arch/arm/Kconfig
arch/arm/Makefile
Diffstat (limited to 'arch/arm/mach-s3c64xx/setup-sdhci-gpio.c')
-rw-r--r-- | arch/arm/mach-s3c64xx/setup-sdhci-gpio.c | 75 |
1 files changed, 75 insertions, 0 deletions
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 000000000000..a58c0cc7ba5e --- /dev/null +++ b/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c @@ -0,0 +1,75 @@ +/* linux/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c + * + * 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) + * + * 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 <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <mach/gpio.h> +#include <plat/gpio-cfg.h> + +void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S3C64XX_GPG(2 + width); + + /* Set all the necessary GPG pins to special-function 0 */ + for (gpio = S3C64XX_GPG(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + 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) +{ + unsigned int gpio; + unsigned int end; + + end = S3C64XX_GPH(2 + width); + + /* Set all the necessary GPG pins to special-function 0 */ + for (gpio = S3C64XX_GPH(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + 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) +{ + unsigned int gpio; + unsigned int end; + + end = S3C64XX_GPH(6 + width); + + /* Set all the necessary GPH pins to special-function 1 */ + for (gpio = S3C64XX_GPH(6); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + /* Set all the necessary GPC pins to special-function 1 */ + for (gpio = S3C64XX_GPC(4); gpio < S3C64XX_GPC(6); gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } +} |