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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-25 21:06:33 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-25 21:06:33 +0200
commitec96e2fe954c23a54bfdf2673437a39e193a1822 (patch)
treee4041c68ef20a3337c56aefc8db785156307edd1 /arch/arm/mach-s5pc100/setup-sdhci-gpio.c
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rol... (diff)
parentMerge branch 'master' into devel (diff)
downloadlinux-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.c86
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));
+}