ARM: S5PC100: GPIO and I2C

S5PC100 has more GPIO group then previous one. It has 34 groups of GPIO, while
S3C6410 has 17 groups. For now, only header files are written.

Signed-off-by: Byungho Min <bhmin@samsung.com>
[ben-linux@fluff.org: subject fixup]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

4 files changed, 217 insertions, 0 deletions

diff --git a/arch/arm/mach-s5pc100/include/mach/gpio-core.h b/arch/arm/mach-s5pc100/include/mach/gpio-core.h
new file mode 100644
index 00000000000..ad28d8ec8a7
--- /dev/null
+++ b/arch/arm/mach-s5pc100/include/mach/gpio-core.h
@@ -0,0 +1,21 @@
+/* arch/arm/mach-s5pc100/include/mach/gpio-core.h
+ *
+ * Copyright 2009 Samsung Electronics Co.
+ *      Byungho Min <bhmin@samsung.com>
+ *
+ * S5PC100 - GPIO core support
+ *
+ * Based on mach-s3c6400/include/mach/gpio-core.h
+ *
+ * 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_GPIO_CORE_H
+#define __ASM_ARCH_GPIO_CORE_H __FILE__
+
+/* currently we just include the platform support */
+#include <plat/gpio-core.h>
+
+#endif /* __ASM_ARCH_GPIO_CORE_H */
diff --git a/arch/arm/mach-s5pc100/include/mach/gpio.h b/arch/arm/mach-s5pc100/include/mach/gpio.h
new file mode 100644
index 00000000000..c74fc93d7d1
--- /dev/null
+++ b/arch/arm/mach-s5pc100/include/mach/gpio.h
@@ -0,0 +1,146 @@
+/* arch/arm/mach-s5pc100/include/mach/gpio.h
+ *
+ * Copyright 2009 Samsung Electronics Co.
+ *	Byungho Min <bhmin@samsung.com>
+ *
+ * S5PC100 - GPIO lib support
+ *
+ * Base on mach-s3c6400/include/mach/gpio.h
+ *
+ * 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.
+*/
+
+#define gpio_get_value	__gpio_get_value
+#define gpio_set_value	__gpio_set_value
+#define gpio_cansleep	__gpio_cansleep
+#define gpio_to_irq	__gpio_to_irq
+
+/* GPIO bank sizes */
+#define S5PC1XX_GPIO_A0_NR	(8)
+#define S5PC1XX_GPIO_A1_NR	(5)
+#define S5PC1XX_GPIO_B_NR	(8)
+#define S5PC1XX_GPIO_C_NR	(5)
+#define S5PC1XX_GPIO_D_NR	(7)
+#define S5PC1XX_GPIO_E0_NR	(8)
+#define S5PC1XX_GPIO_E1_NR	(6)
+#define S5PC1XX_GPIO_F0_NR	(8)
+#define S5PC1XX_GPIO_F1_NR	(8)
+#define S5PC1XX_GPIO_F2_NR	(8)
+#define S5PC1XX_GPIO_F3_NR	(4)
+#define S5PC1XX_GPIO_G0_NR	(8)
+#define S5PC1XX_GPIO_G1_NR	(3)
+#define S5PC1XX_GPIO_G2_NR	(7)
+#define S5PC1XX_GPIO_G3_NR	(7)
+#define S5PC1XX_GPIO_H0_NR	(8)
+#define S5PC1XX_GPIO_H1_NR	(8)
+#define S5PC1XX_GPIO_H2_NR	(8)
+#define S5PC1XX_GPIO_H3_NR	(8)
+#define S5PC1XX_GPIO_I_NR	(8)
+#define S5PC1XX_GPIO_J0_NR	(8)
+#define S5PC1XX_GPIO_J1_NR	(5)
+#define S5PC1XX_GPIO_J2_NR	(8)
+#define S5PC1XX_GPIO_J3_NR	(8)
+#define S5PC1XX_GPIO_J4_NR	(4)
+#define S5PC1XX_GPIO_K0_NR	(8)
+#define S5PC1XX_GPIO_K1_NR	(6)
+#define S5PC1XX_GPIO_K2_NR	(8)
+#define S5PC1XX_GPIO_K3_NR	(8)
+#define S5PC1XX_GPIO_MP00_NR	(8)
+#define S5PC1XX_GPIO_MP01_NR	(8)
+#define S5PC1XX_GPIO_MP02_NR	(8)
+#define S5PC1XX_GPIO_MP03_NR	(8)
+#define S5PC1XX_GPIO_MP04_NR	(5)
+
+/* GPIO bank numbes */
+
+/* CONFIG_S3C_GPIO_SPACE allows the user to select extra
+ * space for debugging purposes so that any accidental
+ * change from one gpio bank to another can be caught.
+*/
+
+#define S5PC1XX_GPIO_NEXT(__gpio) \
+	((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
+
+enum s3c_gpio_number {
+	S5PC1XX_GPIO_A0_START 	= 0,
+	S5PC1XX_GPIO_A1_START 	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_A0),
+	S5PC1XX_GPIO_B_START 	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_A1),
+	S5PC1XX_GPIO_C_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_B),
+	S5PC1XX_GPIO_D_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_C),
+	S5PC1XX_GPIO_E0_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_D),
+	S5PC1XX_GPIO_E1_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_E0),
+	S5PC1XX_GPIO_F0_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_E1),
+	S5PC1XX_GPIO_F1_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_F0),
+	S5PC1XX_GPIO_F2_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_F1),
+	S5PC1XX_GPIO_F3_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_F2),
+	S5PC1XX_GPIO_G0_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_F3),
+	S5PC1XX_GPIO_G1_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_G0),
+	S5PC1XX_GPIO_G2_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_G1),
+	S5PC1XX_GPIO_G3_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_G2),
+	S5PC1XX_GPIO_H0_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_G3),
+	S5PC1XX_GPIO_H1_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_H0),
+	S5PC1XX_GPIO_H2_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_H1),
+	S5PC1XX_GPIO_H3_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_H2),
+	S5PC1XX_GPIO_I_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_H3),
+	S5PC1XX_GPIO_J0_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_I),
+	S5PC1XX_GPIO_J1_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_J0),
+	S5PC1XX_GPIO_J2_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_J1),
+	S5PC1XX_GPIO_J3_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_J2),
+	S5PC1XX_GPIO_J4_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_J3),
+	S5PC1XX_GPIO_K0_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_J4),
+	S5PC1XX_GPIO_K1_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_K0),
+	S5PC1XX_GPIO_K2_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_K1),
+	S5PC1XX_GPIO_K3_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_K2),
+	S5PC1XX_GPIO_MP00_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_K3),
+	S5PC1XX_GPIO_MP01_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_MP00),
+	S5PC1XX_GPIO_MP02_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_MP01),
+	S5PC1XX_GPIO_MP03_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_MP02),
+	S5PC1XX_GPIO_MP04_START	= S5PC1XX_GPIO_NEXT(S5PC1XX_GPIO_MP03),
+};
+
+/* S5PC1XX GPIO number definitions. */
+#define S5PC1XX_GPA0(_nr)	(S5PC1XX_GPIO_A0_START + (_nr))
+#define S5PC1XX_GPA1(_nr)	(S5PC1XX_GPIO_A1_START + (_nr))
+#define S5PC1XX_GPB(_nr)	(S5PC1XX_GPIO_B_START + (_nr))
+#define S5PC1XX_GPC(_nr)	(S5PC1XX_GPIO_C_START + (_nr))
+#define S5PC1XX_GPD(_nr)	(S5PC1XX_GPIO_D_START + (_nr))
+#define S5PC1XX_GPE0(_nr)	(S5PC1XX_GPIO_E0_START + (_nr))
+#define S5PC1XX_GPE1(_nr)	(S5PC1XX_GPIO_E1_START + (_nr))
+#define S5PC1XX_GPF0(_nr)	(S5PC1XX_GPIO_F0_START + (_nr))
+#define S5PC1XX_GPF1(_nr)	(S5PC1XX_GPIO_F1_START + (_nr))
+#define S5PC1XX_GPF2(_nr)	(S5PC1XX_GPIO_F2_START + (_nr))
+#define S5PC1XX_GPF3(_nr)	(S5PC1XX_GPIO_F3_START + (_nr))
+#define S5PC1XX_GPG0(_nr)	(S5PC1XX_GPIO_G0_START + (_nr))
+#define S5PC1XX_GPG1(_nr)	(S5PC1XX_GPIO_G1_START + (_nr))
+#define S5PC1XX_GPG2(_nr)	(S5PC1XX_GPIO_G2_START + (_nr))
+#define S5PC1XX_GPG3(_nr)	(S5PC1XX_GPIO_G3_START + (_nr))
+#define S5PC1XX_GPH0(_nr)	(S5PC1XX_GPIO_H0_START + (_nr))
+#define S5PC1XX_GPH1(_nr)	(S5PC1XX_GPIO_H1_START + (_nr))
+#define S5PC1XX_GPH2(_nr)	(S5PC1XX_GPIO_H2_START + (_nr))
+#define S5PC1XX_GPH3(_nr)	(S5PC1XX_GPIO_H3_START + (_nr))
+#define S5PC1XX_GPI(_nr)	(S5PC1XX_GPIO_I_START + (_nr))
+#define S5PC1XX_GPJ0(_nr)	(S5PC1XX_GPIO_J0_START + (_nr))
+#define S5PC1XX_GPJ1(_nr)	(S5PC1XX_GPIO_J1_START + (_nr))
+#define S5PC1XX_GPJ2(_nr)	(S5PC1XX_GPIO_J2_START + (_nr))
+#define S5PC1XX_GPJ3(_nr)	(S5PC1XX_GPIO_J3_START + (_nr))
+#define S5PC1XX_GPJ4(_nr)	(S5PC1XX_GPIO_J4_START + (_nr))
+#define S5PC1XX_GPK0(_nr)	(S5PC1XX_GPIO_K0_START + (_nr))
+#define S5PC1XX_GPK1(_nr)	(S5PC1XX_GPIO_K1_START + (_nr))
+#define S5PC1XX_GPK2(_nr)	(S5PC1XX_GPIO_K2_START + (_nr))
+#define S5PC1XX_GPK3(_nr)	(S5PC1XX_GPIO_K3_START + (_nr))
+#define S5PC1XX_MP00(_nr)	(S5PC1XX_GPIO_MP00_START + (_nr))
+#define S5PC1XX_MP01(_nr)	(S5PC1XX_GPIO_MP01_START + (_nr))
+#define S5PC1XX_MP02(_nr)	(S5PC1XX_GPIO_MP02_START + (_nr))
+#define S5PC1XX_MP03(_nr)	(S5PC1XX_GPIO_MP03_START + (_nr))
+#define S5PC1XX_MP04(_nr)	(S5PC1XX_GPIO_MP04_START + (_nr))
+
+/* the end of the S5PC1XX specific gpios */
+#define S5PC1XX_GPIO_END	(S5PC1XX_MP04(S5PC1XX_GPIO_MP04_NR) + 1)
+#define S3C_GPIO_END		S5PC1XX_GPIO_END
+
+/* define the number of gpios we need to the one after the MP04() range */
+#define ARCH_NR_GPIOS	(S5PC1XX_MP04(S5PC1XX_GPIO_MP04_NR) + 1)
+
+#include <asm-generic/gpio.h>
diff --git a/arch/arm/plat-s5pc1xx/setup-i2c0.c b/arch/arm/plat-s5pc1xx/setup-i2c0.c
new file mode 100644
index 00000000000..3d00c025fff
--- /dev/null
+++ b/arch/arm/plat-s5pc1xx/setup-i2c0.c
@@ -0,0 +1,25 @@
+/* linux/arch/arm/plat-s5pc1xx/setup-i2c0.c
+ *
+ * Copyright 2009 Samsung Electronics Co.
+ *	Byungho Min <bhmin@samsung.com>
+ *
+ * Base S5PC1XX I2C bus 0 gpio configuration
+ *
+ * Based on plat-s3c64xx/setup-i2c0.c
+ *
+ * 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>
+
+struct platform_device; /* don't need the contents */
+
+#include <plat/iic.h>
+
+void s3c_i2c0_cfg_gpio(struct platform_device *dev)
+{
+	/* Pin configuration would be needed */
+}
diff --git a/arch/arm/plat-s5pc1xx/setup-i2c1.c b/arch/arm/plat-s5pc1xx/setup-i2c1.c
new file mode 100644
index 00000000000..c8f3ca42f51
--- /dev/null
+++ b/arch/arm/plat-s5pc1xx/setup-i2c1.c
@@ -0,0 +1,25 @@
+/* linux/arch/arm/plat-s3c64xx/setup-i2c1.c
+ *
+ * Copyright 2009 Samsung Electronics Co.
+ *	Byungho Min <bhmin@samsung.com>
+ *
+ * Base S5PC1XX I2C bus 1 gpio configuration
+ *
+ * Based on plat-s3c64xx/setup-i2c1.c
+ *
+ * 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>
+
+struct platform_device; /* don't need the contents */
+
+#include <plat/iic.h>
+
+void s3c_i2c1_cfg_gpio(struct platform_device *dev)
+{
+	/* Pin configuration would be needed */
+}