ARM: S5PC100: Add support for Compact Flash driver on SMDKC100

[pandora-kernel.git] / arch / arm / mach-s5pc100 / setup-ide.c

diff --git a/arch/arm/mach-s5pc100/setup-ide.c b/arch/arm/mach-s5pc100/setup-ide.c
new file mode 100644 (file)
index 0000000..8357567
--- /dev/null
+++ b/arch/arm/mach-s5pc100/setup-ide.c
@@ -0,0 +1,70 @@
+/* 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>
+
+void s5pc100_ide_setup_gpio(void)
+{
+       u32 reg;
+       u32 gpio = 0;
+
+       /* 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 */
+       for (gpio = S5PC100_GPJ0(0); gpio <= S5PC100_GPJ0(7); gpio++) {
+               s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(4));
+               s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+               s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+       }
+
+       /*CF_Data[0 - 7] */
+       for (gpio = S5PC100_GPJ2(0); gpio <= S5PC100_GPJ2(7); gpio++) {
+               s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(4));
+               s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+               s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+       }
+
+       /* CF_Data[8 - 15] */
+       for (gpio = S5PC100_GPJ3(0); gpio <= S5PC100_GPJ3(7); gpio++) {
+               s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(4));
+               s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+               s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+       }
+
+       /* CF_CS0, CF_CS1, CF_IORD, CF_IOWR */
+       for (gpio = S5PC100_GPJ4(0); gpio <= S5PC100_GPJ4(3); gpio++) {
+               s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(4));
+               s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+               s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV4);
+       }
+
+       /* EBI_OE, EBI_WE */
+       for (gpio = S5PC100_GPK0(6); gpio <= S5PC100_GPK0(7); gpio++)
+               s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0));
+
+       /* CF_OE, CF_WE */
+       for (gpio = S5PC100_GPK1(6); gpio <= S5PC100_GPK1(7); gpio++) {
+               s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+               s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+       }
+
+       /* CF_CD */
+       s3c_gpio_cfgpin(S5PC100_GPK3(5), S3C_GPIO_SFN(2));
+       s3c_gpio_setpull(S5PC100_GPK3(5), S3C_GPIO_PULL_NONE);
+}