1 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc100/setup-ide.c b/arch/arm/mach-s5pc100/setup-ide.c
new file mode 100644
index 00000000000..223aae04446
--- /dev/null
+++ b/arch/arm/mach-s5pc100/setup-ide.c
@@ -0,0 +1,57 @@
+/* linux/arch/arm/mach-s5pc100/setup-ide.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * S5PC100 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/regs-clock.h>
+#include <plat/gpio-cfg.h>
+
+static void s5pc100_ide_cfg_gpios(unsigned int base, unsigned int nr)
+{
+	s3c_gpio_cfgrange_nopull(base, nr, S3C_GPIO_SFN(4));
+
+	for (; nr > 0; nr--, base++)
+		s5p_gpio_set_drvstr(base, S5P_GPIO_DRVSTR_LV4);
+}
+
+void s5pc100_ide_setup_gpio(void)
+{
+	u32 reg;
+
+	/* Independent CF interface, CF chip select configuration */
+	reg = readl(S5PC100_MEM_SYS_CFG) & (~0x3f);
+	writel(reg | MEM_SYS_CFG_EBI_FIX_PRI_CFCON, S5PC100_MEM_SYS_CFG);
+
+	/* CF_Add[0 - 2], CF_IORDY, CF_INTRQ, CF_DMARQ, CF_DMARST, CF_DMACK */
+	s5pc100_ide_cfg_gpios(S5PC100_GPJ0(0), 8);
+
+	/*CF_Data[0 - 7] */
+	s5pc100_ide_cfg_gpios(S5PC100_GPJ2(0), 8);
+
+	/* CF_Data[8 - 15] */
+	s5pc100_ide_cfg_gpios(S5PC100_GPJ3(0), 8);
+
+	/* CF_CS0, CF_CS1, CF_IORD, CF_IOWR */
+	s5pc100_ide_cfg_gpios(S5PC100_GPJ4(0), 4);
+
+	/* EBI_OE, EBI_WE */
+	s3c_gpio_cfgpin_range(S5PC100_GPK0(6), 2, S3C_GPIO_SFN(0));
+
+	/* CF_OE, CF_WE */
+	s3c_gpio_cfgrange_nopull(S5PC100_GPK1(6), 8, S3C_GPIO_SFN(2));
+
+	/* CF_CD */
+	s3c_gpio_cfgpin(S5PC100_GPK3(5), S3C_GPIO_SFN(2));
+	s3c_gpio_setpull(S5PC100_GPK3(5), S3C_GPIO_PULL_NONE);
+}