From 2af716ba77d26f3d291fe7c7f5a5108d4945c69f Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Tue, 18 May 2010 12:38:45 +0200
Subject: ARM: S5PC100: Move sdhci helpers from plat-s5pc1xx to mach-s5pc100

Move sdhci helpers from plat-s5pc1xx to mach-s5pc100.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
 arch/arm/mach-s5pc100/Kconfig            | 17 ++++---
 arch/arm/mach-s5pc100/Makefile           |  3 +-
 arch/arm/mach-s5pc100/setup-sdhci-gpio.c | 86 ++++++++++++++++++++++++++++++++
 3 files changed, 99 insertions(+), 7 deletions(-)
 create mode 100644 arch/arm/mach-s5pc100/setup-sdhci-gpio.c

(limited to 'arch/arm/mach-s5pc100')

diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig
index 8593337784e1..70b57d19bc91 100644
--- a/arch/arm/mach-s5pc100/Kconfig
+++ b/arch/arm/mach-s5pc100/Kconfig
@@ -17,17 +17,22 @@ config S5PC100_SETUP_FB_24BPP
 	help
 	  Common setup code for S5PC1XX with an 24bpp RGB display helper.
 
-config S5PC100_SETUP_SDHCI
-        bool
-        select S5PC1XX_SETUP_SDHCI_GPIO
-        help
-          Internal helper functions for S5PC100 based SDHCI systems
-
 config S5PC100_SETUP_I2C1
 	bool
 	help
 	  Common setup code for i2c bus 1.
 
+config S5PC100_SETUP_SDHCI
+	bool
+	select S5PC100_SETUP_SDHCI_GPIO
+	help
+	  Internal helper functions for S5PC100 based SDHCI systems
+
+config S5PC100_SETUP_SDHCI_GPIO
+	bool
+	help
+	  Common setup code for SDHCI gpio.
+
 config MACH_SMDKC100
 	bool "SMDKC100"
 	select CPU_S5PC100
diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile
index 373bc546eae8..9a545cad682b 100644
--- a/arch/arm/mach-s5pc100/Makefile
+++ b/arch/arm/mach-s5pc100/Makefile
@@ -18,7 +18,8 @@ obj-$(CONFIG_CPU_S5PC100)	+= setup-i2c0.o
 
 obj-$(CONFIG_S5PC100_SETUP_FB_24BPP)	+= setup-fb-24bpp.o
 obj-$(CONFIG_S5PC100_SETUP_I2C1)	+= setup-i2c1.o
-obj-$(CONFIG_S5PC100_SETUP_SDHCI)       += setup-sdhci.o
+obj-$(CONFIG_S5PC100_SETUP_SDHCI)	+= setup-sdhci.o
+obj-$(CONFIG_S5PC100_SETUP_SDHCI_GPIO)	+= setup-sdhci-gpio.o
 
 # machine support
 obj-$(CONFIG_MACH_SMDKC100)	+= mach-smdkc100.o
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));
+}
-- 
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