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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 21:06:33 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 21:06:33 +0200 |
commit | ec96e2fe954c23a54bfdf2673437a39e193a1822 (patch) | |
tree | e4041c68ef20a3337c56aefc8db785156307edd1 /arch/arm/mach-s5pc100/setup-sdhci-gpio.c | |
parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rol... (diff) | |
parent | Merge branch 'master' into devel (diff) | |
download | linux-ec96e2fe954c23a54bfdf2673437a39e193a1822.tar.xz linux-ec96e2fe954c23a54bfdf2673437a39e193a1822.zip |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (103 commits)
ARM: 6141/1: Add audio support part in arch/arm/mach-w90x900
ARM: 5939/1: ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline
ARM: 6140/1: silence a bogus sparse warning in unwind.c
ARM: mach-at91: duplicated include
ARM: arch/arm/nwfpe/fpsr.h: Checkpatch cleanup
ARM: arch/arm/mach-shark/pci.c: Checkpatch cleanup
ARM: arch/arm/nwfpe/ChangeLog: Checkpatch cleanup
ARM: arch/arm/mach-sa1100/leds.c: Checkpatch cleanup
ARM: arch/arm/mach-h720x/common.h: Checkpatch cleanup
ARM: arch/arm/mach-footbridge/ebsa285-pci.c: Checkpatch cleanup
ARM: arch/arm/mach-clps711x/Makefile.boot: Checkpatch cleanup
ARM: arch/arm/boot/bootp/bootp.lds: Checkpatch cleanup
ARM: SPEAR6xx: remove duplicated #include
ARM: s3c6400_defconfig: Add NAND driver
ARM: s3c6400_defconfig: enable sound as modules
ARM: s3c6400_defconfig: enable power management
ARM: s5pv210_defconfig: Update s5pv210_defconfig to v2.6.34
ARM: s5pc110_defconfig: Update s5pc110_defconfig to v2.6.34
ARM: s5p6442_defconfig: Update s5p6442_defconfig to v2.6.34
ARM: s5p6440_defconfig: Update s5p6440_defconfig to v2.6.34
...
Diffstat (limited to 'arch/arm/mach-s5pc100/setup-sdhci-gpio.c')
-rw-r--r-- | arch/arm/mach-s5pc100/setup-sdhci-gpio.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc100/setup-sdhci-gpio.c b/arch/arm/mach-s5pc100/setup-sdhci-gpio.c new file mode 100644 index 000000000000..7769c760c9ef --- /dev/null +++ b/arch/arm/mach-s5pc100/setup-sdhci-gpio.c @@ -0,0 +1,86 @@ +/* linux/arch/arm/plat-s5pc100/setup-sdhci-gpio.c + * + * Copyright 2009 Samsung Eletronics + * + * S5PC100 - 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 <linux/gpio.h> +#include <linux/mmc/host.h> +#include <linux/mmc/card.h> + +#include <plat/gpio-cfg.h> +#include <plat/regs-sdhci.h> + +void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + unsigned int num; + + num = width; + /* In case of 8 width, we should decrease the 2 */ + if (width == 8) + num = width - 2; + + end = S5PC100_GPG0(2 + num); + + /* Set all the necessary GPG0/GPG1 pins to special-function 0 */ + for (gpio = S5PC100_GPG0(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + if (width == 8) { + for (gpio = S5PC100_GPG1(0); gpio <= S5PC100_GPG1(1); gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + } + + s3c_gpio_setpull(S5PC100_GPG1(2), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPG1(2), S3C_GPIO_SFN(2)); +} + +void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S5PC100_GPG2(2 + width); + + /* Set all the necessary GPG2 pins to special-function 2 */ + for (gpio = S5PC100_GPG2(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + s3c_gpio_setpull(S5PC100_GPG2(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPG2(6), S3C_GPIO_SFN(2)); +} + +void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S5PC100_GPG3(2 + width); + + /* Set all the necessary GPG3 pins to special-function 2 */ + for (gpio = S5PC100_GPG3(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + s3c_gpio_setpull(S5PC100_GPG3(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPG3(6), S3C_GPIO_SFN(2)); +} |