ARM: S5P6440: Add new CPU initialization support

This patch adds Samsung's S5P6440 CPU support.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

9 files changed, 333 insertions, 0 deletions

diff --git a/arch/arm/mach-s5p6440/include/mach/debug-macro.S b/arch/arm/mach-s5p6440/include/mach/debug-macro.S
new file mode 100644
index 000000000000..f3a5d1635be5
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/debug-macro.S
@@ -0,0 +1,37 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/debug-macro.S
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * 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.
+*/
+
+/* pull in the relevant register and map files. */
+
+#include <mach/map.h>
+#include <plat/regs-serial.h>
+
+	/* note, for the boot process to work we have to keep the UART
+	 * virtual address aligned to an 1MiB boundary for the L1
+	 * mapping the head code makes. We keep the UART virtual address
+	 * aligned and add in the offset when we load the value here.
+	 */
+
+	.macro addruart, rx
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1
+		ldreq	\rx, = S5P_PA_UART
+		ldrne	\rx, = (S5P_VA_UART + S5P_PA_UART & 0xfffff)
+#if CONFIG_DEBUG_S3C_UART != 0
+		add	\rx, \rx, #(0x400 * CONFIG_DEBUG_S3C_UART)
+#endif
+	.endm
+
+/* include the reset of the code which will do the work, we're only
+ * compiling for a single cpu processor type so the default of s3c2440
+ * will be fine with us.
+ */
+
+#include <plat/debug-macro.S>
diff --git a/arch/arm/mach-s5p6440/include/mach/entry-macro.S b/arch/arm/mach-s5p6440/include/mach/entry-macro.S
new file mode 100644
index 000000000000..e65f1b967262
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/entry-macro.S
@@ -0,0 +1,16 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/entry-macro.S
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Low-level IRQ helper macros for the Samsung S5P6440
+ *
+ * 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 <mach/map.h>
+#include <plat/irqs.h>
+
+#include <asm/entry-macro-vic2.S>
diff --git a/arch/arm/mach-s5p6440/include/mach/gpio-core.h b/arch/arm/mach-s5p6440/include/mach/gpio-core.h
new file mode 100644
index 000000000000..ff7fb3094188
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/gpio-core.h
@@ -0,0 +1,19 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/gpio-core.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6440 - GPIO core support
+ *
+ * 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-s5p6440/include/mach/gpio.h b/arch/arm/mach-s5p6440/include/mach/gpio.h
new file mode 100644
index 000000000000..21783834f2a2
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/gpio.h
@@ -0,0 +1,80 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/gpio.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6440 - GPIO lib support
+ *
+ * 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_H
+#define __ASM_ARCH_GPIO_H __FILE__
+
+#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 S5P6440_GPIO_A_NR	(6)
+#define S5P6440_GPIO_B_NR	(7)
+#define S5P6440_GPIO_C_NR	(8)
+#define S5P6440_GPIO_F_NR	(2)
+#define S5P6440_GPIO_G_NR	(7)
+#define S5P6440_GPIO_H_NR	(10)
+#define S5P6440_GPIO_I_NR	(16)
+#define S5P6440_GPIO_J_NR	(12)
+#define S5P6440_GPIO_N_NR	(16)
+#define S5P6440_GPIO_P_NR	(8)
+#define S5P6440_GPIO_R_NR	(15)
+
+/* GPIO bank numbers */
+
+/* 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 S5P6440_GPIO_NEXT(__gpio) \
+	((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
+
+enum s5p_gpio_number {
+	S5P6440_GPIO_A_START = 0,
+	S5P6440_GPIO_B_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_A),
+	S5P6440_GPIO_C_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_B),
+	S5P6440_GPIO_F_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_C),
+	S5P6440_GPIO_G_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_F),
+	S5P6440_GPIO_H_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_G),
+	S5P6440_GPIO_I_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_H),
+	S5P6440_GPIO_J_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_I),
+	S5P6440_GPIO_N_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_J),
+	S5P6440_GPIO_P_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_N),
+	S5P6440_GPIO_R_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_P),
+};
+
+/* S5P6440 GPIO number definitions. */
+#define S5P6440_GPA(_nr)	(S5P6440_GPIO_A_START + (_nr))
+#define S5P6440_GPB(_nr)	(S5P6440_GPIO_B_START + (_nr))
+#define S5P6440_GPC(_nr)	(S5P6440_GPIO_C_START + (_nr))
+#define S5P6440_GPF(_nr)	(S5P6440_GPIO_F_START + (_nr))
+#define S5P6440_GPG(_nr)	(S5P6440_GPIO_G_START + (_nr))
+#define S5P6440_GPH(_nr)	(S5P6440_GPIO_H_START + (_nr))
+#define S5P6440_GPI(_nr)	(S5P6440_GPIO_I_START + (_nr))
+#define S5P6440_GPJ(_nr)	(S5P6440_GPIO_J_START + (_nr))
+#define S5P6440_GPN(_nr)	(S5P6440_GPIO_N_START + (_nr))
+#define S5P6440_GPP(_nr)	(S5P6440_GPIO_P_START + (_nr))
+#define S5P6440_GPR(_nr)	(S5P6440_GPIO_R_START + (_nr))
+
+/* the end of the S5P6440 specific gpios */
+#define S5P6440_GPIO_END	(S5P6440_GPR(S5P6440_GPIO_R_NR) + 1)
+#define S3C_GPIO_END		S5P6440_GPIO_END
+
+/* define the number of gpios we need to the one after the GPR() range */
+#define ARCH_NR_GPIOS		(S5P6440_GPR(S5P6440_GPIO_R_NR) +	\
+				 CONFIG_SAMSUNG_GPIO_EXTRA + 1)
+
+#include <asm-generic/gpio.h>
+
+#endif /* __ASM_ARCH_GPIO_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/hardware.h b/arch/arm/mach-s5p6440/include/mach/hardware.h
new file mode 100644
index 000000000000..be8b26e875db
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/hardware.h
@@ -0,0 +1,18 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/hardware.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6440 - Hardware support
+ *
+ * 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_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H __FILE__
+
+/* currently nothing here, placeholder */
+
+#endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/map.h b/arch/arm/mach-s5p6440/include/mach/map.h
new file mode 100644
index 000000000000..b3703293cc3b
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/map.h
@@ -0,0 +1,94 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/map.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6440 - Memory map 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_MAP_H
+#define __ASM_ARCH_MAP_H __FILE__
+
+#include <plat/map-base.h>
+
+/* SYSCON */
+#define S5P6440_PA_SYSCON	(0xE0100000)
+#define S5P_PA_SYSCON		S5P6440_PA_SYSCON
+#define S5P_VA_SYSCON		S3C_VA_SYS
+
+#define S5P6440_PA_CLK		(S5P6440_PA_SYSCON + 0x0)
+#define S5P_PA_CLK		S5P6440_PA_CLK
+#define S5P_VA_CLK		(S5P_VA_SYSCON + 0x0)
+
+/* GPIO */
+#define S5P6440_PA_GPIO		(0xE0308000)
+#define S5P_PA_GPIO		S5P6440_PA_GPIO
+#define S5P_VA_GPIO		S3C_ADDR(0x00500000)
+
+/* VIC0 */
+#define S5P6440_PA_VIC0		(0xE4000000)
+#define S5P_PA_VIC0		S5P6440_PA_VIC0
+#define S5P_VA_VIC0		(S3C_VA_IRQ + 0x0)
+#define VA_VIC0			S5P_VA_VIC0
+
+/* VIC1 */
+#define S5P6440_PA_VIC1		(0xE4100000)
+#define S5P_PA_VIC1		S5P6440_PA_VIC1
+#define S5P_VA_VIC1		(S3C_VA_IRQ + 0x10000)
+#define VA_VIC1			S5P_VA_VIC1
+
+/* Timer */
+#define S5P6440_PA_TIMER	(0xEA000000)
+#define S5P_PA_TIMER		S5P6440_PA_TIMER
+#define S5P_VA_TIMER		S3C_VA_TIMER
+
+/* RTC */
+#define S5P6440_PA_RTC		(0xEA100000)
+#define S5P_PA_RTC		S5P6440_PA_RTC
+#define S5P_VA_RTC		S3C_ADDR(0x00600000)
+
+/* WDT */
+#define S5P6440_PA_WDT		(0xEA200000)
+#define S5P_PA_WDT		S5P6440_PA_WDT
+#define S5p_VA_WDT		S3C_VA_WATCHDOG
+
+/* UART */
+#define S5P6440_PA_UART		(0xEC000000)
+#define S5P_PA_UART		S5P6440_PA_UART
+#define S5P_VA_UART		S3C_VA_UART
+
+#define S5P_PA_UART0		(S5P_PA_UART + 0x0)
+#define S5P_PA_UART1		(S5P_PA_UART + 0x400)
+#define S5P_PA_UART2		(S5P_PA_UART + 0x800)
+#define S5P_PA_UART3		(S5P_PA_UART + 0xC00)
+#define S5P_UART_OFFSET		(0x400)
+
+#define S5P_VA_UARTx(x)		(S5P_VA_UART + (S5P_PA_UART & 0xfffff) \
+				+ ((x) * S5P_UART_OFFSET))
+
+#define S5P_VA_UART0		S5P_VA_UARTx(0)
+#define S5P_VA_UART1		S5P_VA_UARTx(1)
+#define S5P_VA_UART2		S5P_VA_UARTx(2)
+#define S5P_VA_UART3		S5P_VA_UARTx(3)
+#define S5P_SZ_UART		SZ_256
+
+/* I2C */
+#define S5P6440_PA_IIC0		(0xEC104000)
+#define S5P_PA_IIC0		S5P6440_PA_IIC0
+#define S5p_VA_IIC0		S3C_ADDR(0x00700000)
+
+/* SDRAM */
+#define S5P6440_PA_SDRAM	(0x20000000)
+#define S5P_PA_SDRAM		S5P6440_PA_SDRAM
+
+/* compatibiltiy defines. */
+#define S3C_PA_UART		S5P_PA_UART
+#define S3C_UART_OFFSET		S5P_UART_OFFSET
+#define S3C_PA_TIMER		S5P_PA_TIMER
+#define S3C_PA_IIC		S5P_PA_IIC0
+
+#endif /* __ASM_ARCH_MAP_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/memory.h b/arch/arm/mach-s5p6440/include/mach/memory.h
new file mode 100644
index 000000000000..d62910c71b56
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/memory.h
@@ -0,0 +1,19 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/memory.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6440 - Memory 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_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#define PHYS_OFFSET     	UL(0x20000000)
+#define CONSISTENT_DMA_SIZE	SZ_8M
+
+#endif /* __ASM_ARCH_MEMORY_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/system.h b/arch/arm/mach-s5p6440/include/mach/system.h
new file mode 100644
index 000000000000..d2dd817da66a
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/system.h
@@ -0,0 +1,26 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/system.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6440 - system support header
+ *
+ * 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_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H __FILE__
+
+static void arch_idle(void)
+{
+	/* nothing here yet */
+}
+
+static void arch_reset(char mode, const char *cmd)
+{
+	/* nothing here yet */
+}
+
+#endif /* __ASM_ARCH_SYSTEM_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/uncompress.h b/arch/arm/mach-s5p6440/include/mach/uncompress.h
new file mode 100644
index 000000000000..7c1f600d65c0
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/uncompress.h
@@ -0,0 +1,24 @@
+/* linux/arch/arm/mach-s5p6440/include/mach/uncompress.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P6440 - uncompress code
+ *
+ * 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_UNCOMPRESS_H
+#define __ASM_ARCH_UNCOMPRESS_H
+
+#include <mach/map.h>
+#include <plat/uncompress.h>
+
+static void arch_detect_cpu(void)
+{
+	/* we do not need to do any cpu detection here at the moment. */
+}
+
+#endif /* __ASM_ARCH_UNCOMPRESS_H */