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authorJohn W. Linville <linville@tuxdriver.com>2011-11-22 14:05:46 -0500
committerJohn W. Linville <linville@tuxdriver.com>2011-11-22 14:05:46 -0500
commit515db09338704a6ad7d27b5f1e33820d3052edd2 (patch)
tree74f915531710303397d34069b325c2be7a5ac93c /arch/arm/mach-exynos/setup-sdhci-gpio.c
parent30be52e44fd4276d768efffb55d424fb682e6505 (diff)
parentcfcfc9eca2bcbd26a8e206baeb005b055dbf8e37 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Conflicts: drivers/net/wireless/iwlegacy/iwl-debugfs.c drivers/net/wireless/iwlegacy/iwl-rx.c drivers/net/wireless/iwlegacy/iwl-scan.c drivers/net/wireless/iwlegacy/iwl-tx.c include/net/bluetooth/bluetooth.h
Diffstat (limited to 'arch/arm/mach-exynos/setup-sdhci-gpio.c')
-rw-r--r--arch/arm/mach-exynos/setup-sdhci-gpio.c152
1 files changed, 152 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/setup-sdhci-gpio.c b/arch/arm/mach-exynos/setup-sdhci-gpio.c
new file mode 100644
index 00000000000..e8d08bf8965
--- /dev/null
+++ b/arch/arm/mach-exynos/setup-sdhci-gpio.c
@@ -0,0 +1,152 @@
+/* linux/arch/arm/mach-exynos4/setup-sdhci-gpio.c
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * EXYNOS4 - 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>
+#include <plat/sdhci.h>
+
+void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
+{
+ struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+ unsigned int gpio;
+
+ /* Set all the necessary GPK0[0:1] pins to special-function 2 */
+ for (gpio = EXYNOS4_GPK0(0); gpio < EXYNOS4_GPK0(2); gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ switch (width) {
+ case 8:
+ for (gpio = EXYNOS4_GPK1(3); gpio <= EXYNOS4_GPK1(6); gpio++) {
+ /* Data pin GPK1[3:6] to special-function 3 */
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+ case 4:
+ for (gpio = EXYNOS4_GPK0(3); gpio <= EXYNOS4_GPK0(6); gpio++) {
+ /* Data pin GPK0[3:6] to special-function 2 */
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+ default:
+ break;
+ }
+
+ if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+ s3c_gpio_cfgpin(EXYNOS4_GPK0(2), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(EXYNOS4_GPK0(2), S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+}
+
+void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
+{
+ struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+ unsigned int gpio;
+
+ /* Set all the necessary GPK1[0:1] pins to special-function 2 */
+ for (gpio = EXYNOS4_GPK1(0); gpio < EXYNOS4_GPK1(2); gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ for (gpio = EXYNOS4_GPK1(3); gpio <= EXYNOS4_GPK1(6); gpio++) {
+ /* Data pin GPK1[3:6] to special-function 2 */
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+ s3c_gpio_cfgpin(EXYNOS4_GPK1(2), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(EXYNOS4_GPK1(2), S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+}
+
+void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
+{
+ struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+ unsigned int gpio;
+
+ /* Set all the necessary GPK2[0:1] pins to special-function 2 */
+ for (gpio = EXYNOS4_GPK2(0); gpio < EXYNOS4_GPK2(2); gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ switch (width) {
+ case 8:
+ for (gpio = EXYNOS4_GPK3(3); gpio <= EXYNOS4_GPK3(6); gpio++) {
+ /* Data pin GPK3[3:6] to special-function 3 */
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+ case 4:
+ for (gpio = EXYNOS4_GPK2(3); gpio <= EXYNOS4_GPK2(6); gpio++) {
+ /* Data pin GPK2[3:6] to special-function 2 */
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+ default:
+ break;
+ }
+
+ if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+ s3c_gpio_cfgpin(EXYNOS4_GPK2(2), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(EXYNOS4_GPK2(2), S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+}
+
+void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *dev, int width)
+{
+ struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+ unsigned int gpio;
+
+ /* Set all the necessary GPK3[0:1] pins to special-function 2 */
+ for (gpio = EXYNOS4_GPK3(0); gpio < EXYNOS4_GPK3(2); gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ for (gpio = EXYNOS4_GPK3(3); gpio <= EXYNOS4_GPK3(6); gpio++) {
+ /* Data pin GPK3[3:6] to special-function 2 */
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+
+ if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+ s3c_gpio_cfgpin(EXYNOS4_GPK3(2), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(EXYNOS4_GPK3(2), S3C_GPIO_PULL_UP);
+ s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+ }
+}