ARM: S3C64XX: Add support for Compact Flash driver on SMDK6410

Following is added for the CF-ATA driver:
	- Platform data strucure instantiation
	- Platform device enabling code
	- Addition of cfcon clock
	- Platform-specific gpio setup code

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c64xx/setup-ide.c b/arch/arm/mach-s3c64xx/setup-ide.c
new file mode 100644
index 000000000000..c12c315f33bc
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/setup-ide.c
@@ -0,0 +1,46 @@
+/* linux/arch/arm/mach-s3c64xx/setup-ide.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S3C64XX setup information for IDE
+ *
+ * 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/gpio.h>
+#include <linux/io.h>
+
+#include <mach/map.h>
+#include <mach/regs-clock.h>
+#include <plat/gpio-cfg.h>
+
+void s3c64xx_ide_setup_gpio(void)
+{
+	u32 reg;
+	u32 gpio = 0;
+
+	reg = readl(S3C_MEM_SYS_CFG) & (~0x3f);
+
+	/* Independent CF interface, CF chip select configuration */
+	writel(reg | MEM_SYS_CFG_INDEP_CF |
+		MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S3C_MEM_SYS_CFG);
+
+	s3c_gpio_cfgpin(S3C64XX_GPB(4), S3C_GPIO_SFN(4));
+
+	/* Set XhiDATA[15:0] pins as CF Data[15:0] */
+	for (gpio = S3C64XX_GPK(0); gpio <= S3C64XX_GPK(15); gpio++)
+		s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(5));
+
+	/* Set XhiADDR[2:0] pins as CF ADDR[2:0] */
+	for (gpio = S3C64XX_GPL(0); gpio <= S3C64XX_GPL(2); gpio++)
+		s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(6));
+
+	/* Set Xhi ctrl pins as CF ctrl pins(IORDY, IOWR, IORD, CE[0:1]) */
+	s3c_gpio_cfgpin(S3C64XX_GPM(5), S3C_GPIO_SFN(1));
+	for (gpio = S3C64XX_GPM(0); gpio <= S3C64XX_GPM(4); gpio++)
+		s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(6));
+}