ARM: S5P6440: Add S5P6440 GPIO support

This patch adds Samsung's S5P6440 GPIO support.

Signed-off-by: Adityapratap Sharma <aditya.ps@samsung.com>
Signed-off-by: Atul Dahiya <atul.dahiya@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 54 insertions, 0 deletions

diff --git a/arch/arm/mach-s5p6440/include/mach/regs-gpio.h b/arch/arm/mach-s5p6440/include/mach/regs-gpio.h
new file mode 100644
index 000000000000..82ff753913da
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/regs-gpio.h
@@ -0,0 +1,54 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/regs-gpio.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P6440 - GPIO register definitions
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARCH_REGS_GPIO_H
+#define __ASM_ARCH_REGS_GPIO_H __FILE__
+
+#include <mach/map.h>
+
+/* Base addresses for each of the banks */
+#define S5P6440_GPA_BASE                (S5P_VA_GPIO + 0x0000)
+#define S5P6440_GPB_BASE                (S5P_VA_GPIO + 0x0020)
+#define S5P6440_GPC_BASE                (S5P_VA_GPIO + 0x0040)
+#define S5P6440_GPF_BASE                (S5P_VA_GPIO + 0x00A0)
+#define S5P6440_GPG_BASE                (S5P_VA_GPIO + 0x00C0)
+#define S5P6440_GPH_BASE                (S5P_VA_GPIO + 0x00E0)
+#define S5P6440_GPI_BASE                (S5P_VA_GPIO + 0x0100)
+#define S5P6440_GPJ_BASE                (S5P_VA_GPIO + 0x0120)
+#define S5P6440_GPN_BASE                (S5P_VA_GPIO + 0x0830)
+#define S5P6440_GPP_BASE                (S5P_VA_GPIO + 0x0160)
+#define S5P6440_GPR_BASE                (S5P_VA_GPIO + 0x0290)
+#define S5P6440_EINT0CON0               (S5P_VA_GPIO + 0x900)
+#define S5P6440_EINT0FLTCON0            (S5P_VA_GPIO + 0x910)
+#define S5P6440_EINT0FLTCON1            (S5P_VA_GPIO + 0x914)
+#define S5P6440_EINT0MASK               (S5P_VA_GPIO + 0x920)
+#define S5P6440_EINT0PEND               (S5P_VA_GPIO + 0x924)
+
+/* for LCD */
+#define S5P6440_SPCON_LCD_SEL_RGB       (1 << 0)
+#define S5P6440_SPCON_LCD_SEL_MASK      (3 << 0)
+
+/* These set of macros are not really useful for the
+ * GPF/GPI/GPJ/GPN/GPP,
+ * useful for others set of GPIO's (4 bit)
+ */
+#define S5P6440_GPIO_CONMASK(__gpio)    (0xf << ((__gpio) * 4))
+#define S5P6440_GPIO_INPUT(__gpio)      (0x0 << ((__gpio) * 4))
+#define S5P6440_GPIO_OUTPUT(__gpio)     (0x1 << ((__gpio) * 4))
+
+/* Use these macros for GPF/GPI/GPJ/GPN/GPP set of GPIO (2 bit)
+ * */
+#define S5P6440_GPIO2_CONMASK(__gpio)   (0x3 << ((__gpio) * 2))
+#define S5P6440_GPIO2_INPUT(__gpio)     (0x0 << ((__gpio) * 2))
+#define S5P6440_GPIO2_OUTPUT(__gpio)    (0x1 << ((__gpio) * 2))
+
+#endif /* __ASM_ARCH_REGS_GPIO_H */