From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001
From: root <root@artemis.panaceas.org>
Date: Fri, 25 Dec 2015 04:40:36 +0000
Subject: initial_commit

---
 arch/arm/mach-s5pc100/setup-sdhci-gpio.c | 71 ++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 arch/arm/mach-s5pc100/setup-sdhci-gpio.c

(limited to 'arch/arm/mach-s5pc100/setup-sdhci-gpio.c')

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 00000000..03c02d04
--- /dev/null
+++ b/arch/arm/mach-s5pc100/setup-sdhci-gpio.c
@@ -0,0 +1,71 @@
+/* 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>
+#include <plat/sdhci.h>
+
+void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
+{
+	struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+	unsigned int num;
+
+	num = width;
+	/* In case of 8 width, we should decrease the 2 */
+	if (width == 8)
+		num = width - 2;
+
+	/* Set all the necessary GPG0/GPG1 pins to special-function 0 */
+	s3c_gpio_cfgrange_nopull(S5PC100_GPG0(0), 2 + num, S3C_GPIO_SFN(2));
+
+	if (width == 8)
+		s3c_gpio_cfgrange_nopull(S5PC100_GPG1(0), 2, S3C_GPIO_SFN(2));
+
+	if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+		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)
+{
+	struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+
+	/* Set all the necessary GPG2 pins to special-function 2 */
+	s3c_gpio_cfgrange_nopull(S5PC100_GPG2(0), 2 + width, S3C_GPIO_SFN(2));
+
+	if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+		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)
+{
+	struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+
+	/* Set all the necessary GPG3 pins to special-function 2 */
+	s3c_gpio_cfgrange_nopull(S5PC100_GPG3(0), 2 + width, S3C_GPIO_SFN(2));
+
+	if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+		s3c_gpio_setpull(S5PC100_GPG3(6), S3C_GPIO_PULL_UP);
+		s3c_gpio_cfgpin(S5PC100_GPG3(6), S3C_GPIO_SFN(2));
+	}
+}
-- 
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