ARM: S5P64X0: Add S5P64X0(S5P6440 and S5P6450) initialization support

This patch adds ARCH_S5P64X0 which can support S5P6440 and S5P6450 with
one kernel image. So moved some files of mach-s5p6440 into the new ARCH
directory mach-s5p64x0.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

10 files changed, 476 insertions, 0 deletions

diff --git a/arch/arm/mach-s5p64x0/include/mach/debug-macro.S b/arch/arm/mach-s5p64x0/include/mach/debug-macro.S
new file mode 100644
index 00000000000..79b04e6a6f8
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/debug-macro.S
@@ -0,0 +1,33 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/debug-macro.S
+ *
+ * Copyright (c) 2009-2010 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 <plat/map-base.h>
+#include <plat/map-s5p.h>
+
+#include <plat/regs-serial.h>
+
+	.macro addruart, rp, rv
+		mov	\rp, #0xE0000000
+		orr	\rp, \rp, #0x00100000
+		ldr	\rp, [\rp, #0x118 ]
+		and	\rp, \rp, #0xff000
+		teq	\rp, #0x50000		@@ S5P6450
+		ldreq	\rp, =0xEC800000
+		movne	\rp, #0xEC000000	@@ S5P6440
+		ldrne	\rv, = S3C_VA_UART
+#if CONFIG_DEBUG_S3C_UART != 0
+		add	\rp, \rp, #(0x400 * CONFIG_DEBUG_S3C_UART)
+		add	\rv, \rv, #(0x400 * CONFIG_DEBUG_S3C_UART)
+#endif
+	.endm
+
+#include <plat/debug-macro.S>
diff --git a/arch/arm/mach-s5p64x0/include/mach/entry-macro.S b/arch/arm/mach-s5p64x0/include/mach/entry-macro.S
new file mode 100644
index 00000000000..10b62b4f821
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/entry-macro.S
@@ -0,0 +1,16 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/entry-macro.S
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Low-level IRQ helper macros for the Samsung S5P64X0
+ *
+ * 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-s5p64x0/include/mach/hardware.h b/arch/arm/mach-s5p64x0/include/mach/hardware.h
new file mode 100644
index 00000000000..d3e87996dd9
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/hardware.h
@@ -0,0 +1,18 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/hardware.h
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * S5P64X0 - 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-s5p64x0/include/mach/io.h b/arch/arm/mach-s5p64x0/include/mach/io.h
new file mode 100644
index 00000000000..a3e095c02fb
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/io.h
@@ -0,0 +1,25 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/io.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Copyright 2008 Simtec Electronics
+ *	Ben Dooks <ben-linux@fluff.org>
+ *
+ * Default IO routines for S5P64X0 based
+ *
+ * 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_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+/* No current ISA/PCI bus support. */
+#define __io(a)		__typesafe_io(a)
+#define __mem_pci(a)	(a)
+
+#define IO_SPACE_LIMIT (0xFFFFFFFF)
+
+#endif
diff --git a/arch/arm/mach-s5p64x0/include/mach/map.h b/arch/arm/mach-s5p64x0/include/mach/map.h
new file mode 100644
index 00000000000..31e534156e0
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/map.h
@@ -0,0 +1,83 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/map.h
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * S5P64X0 - 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>
+#include <plat/map-s5p.h>
+
+#define S5P64X0_PA_SDRAM	(0x20000000)
+
+#define S5P64X0_PA_CHIPID	(0xE0000000)
+#define S5P_PA_CHIPID		S5P64X0_PA_CHIPID
+
+#define S5P64X0_PA_SYSCON	(0xE0100000)
+#define S5P_PA_SYSCON		S5P64X0_PA_SYSCON
+
+#define S5P64X0_PA_GPIO		(0xE0308000)
+
+#define S5P64X0_PA_VIC0		(0xE4000000)
+#define S5P64X0_PA_VIC1		(0xE4100000)
+
+#define S5P64X0_PA_PDMA		(0xE9000000)
+
+#define S5P64X0_PA_TIMER	(0xEA000000)
+#define S5P_PA_TIMER		S5P64X0_PA_TIMER
+
+#define S5P64X0_PA_RTC		(0xEA100000)
+
+#define S5P64X0_PA_WDT		(0xEA200000)
+
+#define S5P6440_PA_UART(x)	(0xEC000000 + ((x) * S3C_UART_OFFSET))
+#define S5P6450_PA_UART(x)	((x < 5) ? (0xEC800000 + ((x) * S3C_UART_OFFSET)) : (0xEC000000))
+
+#define S5P_PA_UART0		S5P6450_PA_UART(0)
+#define S5P_PA_UART1		S5P6450_PA_UART(1)
+#define S5P_PA_UART2		S5P6450_PA_UART(2)
+#define S5P_PA_UART3		S5P6450_PA_UART(3)
+#define S5P_PA_UART4		S5P6450_PA_UART(4)
+#define S5P_PA_UART5		S5P6450_PA_UART(5)
+
+#define S5P_SZ_UART		SZ_256
+
+#define S5P6440_PA_IIC0		(0xEC104000)
+#define S5P6440_PA_IIC1		(0xEC20F000)
+#define S5P6450_PA_IIC0		(0xEC100000)
+#define S5P6450_PA_IIC1		(0xEC200000)
+
+#define S5P64X0_PA_SPI0		(0xEC400000)
+#define S5P64X0_PA_SPI1		(0xEC500000)
+
+#define S5P64X0_PA_HSOTG	(0xED100000)
+
+#define S5P64X0_PA_HSMMC(x)	(0xED800000 + ((x) * 0x100000))
+
+#define S5P64X0_PA_I2S		(0xF2000000)
+
+#define S5P64X0_PA_PCM		(0xF2100000)
+
+#define S5P64X0_PA_ADC		(0xF3000000)
+
+/* compatibiltiy defines. */
+
+#define S3C_PA_HSMMC0		S5P64X0_PA_HSMMC(0)
+#define S3C_PA_HSMMC1		S5P64X0_PA_HSMMC(1)
+#define S3C_PA_HSMMC2		S5P64X0_PA_HSMMC(2)
+#define S3C_PA_IIC		S5P6440_PA_IIC0
+#define S3C_PA_IIC1		S5P6440_PA_IIC1
+#define S3C_PA_RTC		S5P64X0_PA_RTC
+#define S3C_PA_WDT		S5P64X0_PA_WDT
+
+#define SAMSUNG_PA_ADC		S5P64X0_PA_ADC
+
+#endif /* __ASM_ARCH_MAP_H */
diff --git a/arch/arm/mach-s5p64x0/include/mach/memory.h b/arch/arm/mach-s5p64x0/include/mach/memory.h
new file mode 100644
index 00000000000..1b036b0a24c
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/memory.h
@@ -0,0 +1,19 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/memory.h
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * S5P64X0 - 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 __FILE__
+
+#define PHYS_OFFSET		UL(0x20000000)
+#define CONSISTENT_DMA_SIZE	SZ_8M
+
+#endif /* __ASM_ARCH_MEMORY_H */
diff --git a/arch/arm/mach-s5p64x0/include/mach/system.h b/arch/arm/mach-s5p64x0/include/mach/system.h
new file mode 100644
index 00000000000..60f57532c97
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/system.h
@@ -0,0 +1,23 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/system.h
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * S5P64X0 - 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__
+
+#include <plat/system-reset.h>
+
+static void arch_idle(void)
+{
+	/* nothing here yet */
+}
+
+#endif /* __ASM_ARCH_SYSTEM_H */
diff --git a/arch/arm/mach-s5p64x0/include/mach/timex.h b/arch/arm/mach-s5p64x0/include/mach/timex.h
new file mode 100644
index 00000000000..4b91faa195a
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/timex.h
@@ -0,0 +1,27 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/timex.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Copyright (c) 2003-2005 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S5P64X0 - time parameters
+ *
+ * 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_TIMEX_H
+#define __ASM_ARCH_TIMEX_H
+
+/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
+ * a variable is useless. It seems as long as we make our timers an
+ * exact multiple of HZ, any value that makes a 1->1 correspondence
+ * for the time conversion functions to/from jiffies is acceptable.
+*/
+
+#define CLOCK_TICK_RATE 12000000
+
+#endif /* __ASM_ARCH_TIMEX_H */
diff --git a/arch/arm/mach-s5p64x0/include/mach/uncompress.h b/arch/arm/mach-s5p64x0/include/mach/uncompress.h
new file mode 100644
index 00000000000..c65b229aab2
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/uncompress.h
@@ -0,0 +1,212 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/uncompress.h
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * S5P64X0 - 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>
+
+/*
+ * cannot use commonly <plat/uncompress.h>
+ * because uart base of S5P6440 and S5P6450 is different
+ */
+
+typedef unsigned int upf_t;	/* cannot include linux/serial_core.h */
+
+/* uart setup */
+
+static unsigned int fifo_mask;
+static unsigned int fifo_max;
+
+/* forward declerations */
+
+static void arch_detect_cpu(void);
+
+/* defines for UART registers */
+
+#include <plat/regs-serial.h>
+#include <plat/regs-watchdog.h>
+
+/* working in physical space... */
+#undef S3C2410_WDOGREG
+#define S3C2410_WDOGREG(x) ((S3C24XX_PA_WATCHDOG + (x)))
+
+/* how many bytes we allow into the FIFO at a time in FIFO mode */
+#define FIFO_MAX	 (14)
+
+static unsigned long uart_base;
+
+static __inline__ void get_uart_base(void)
+{
+	unsigned int chipid;
+
+	chipid = *(const volatile unsigned int __force *) 0xE0100118;
+
+	uart_base = S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT;
+
+	if ((chipid & 0xff000) == 0x50000)
+		uart_base += 0xEC800000;
+	else
+		uart_base += 0xEC000000;
+}
+
+static __inline__ void uart_wr(unsigned int reg, unsigned int val)
+{
+	volatile unsigned int *ptr;
+
+	get_uart_base();
+	ptr = (volatile unsigned int *)(reg + uart_base);
+	*ptr = val;
+}
+
+static __inline__ unsigned int uart_rd(unsigned int reg)
+{
+	volatile unsigned int *ptr;
+
+	get_uart_base();
+	ptr = (volatile unsigned int *)(reg + uart_base);
+	return *ptr;
+}
+
+/*
+ * we can deal with the case the UARTs are being run
+ * in FIFO mode, so that we don't hold up our execution
+ * waiting for tx to happen...
+ */
+
+static void putc(int ch)
+{
+	if (uart_rd(S3C2410_UFCON) & S3C2410_UFCON_FIFOMODE) {
+		int level;
+
+		while (1) {
+			level = uart_rd(S3C2410_UFSTAT);
+			level &= fifo_mask;
+
+			if (level < fifo_max)
+				break;
+		}
+
+	} else {
+		/* not using fifos */
+
+		while ((uart_rd(S3C2410_UTRSTAT) & S3C2410_UTRSTAT_TXE) != S3C2410_UTRSTAT_TXE)
+			barrier();
+	}
+
+	/* write byte to transmission register */
+	uart_wr(S3C2410_UTXH, ch);
+}
+
+static inline void flush(void)
+{
+}
+
+#define __raw_writel(d, ad)			\
+	do {							\
+		*((volatile unsigned int __force *)(ad)) = (d); \
+	} while (0)
+
+/*
+ * CONFIG_S3C_BOOT_WATCHDOG
+ *
+ * Simple boot-time watchdog setup, to reboot the system if there is
+ * any problem with the boot process
+ */
+
+#ifdef CONFIG_S3C_BOOT_WATCHDOG
+
+#define WDOG_COUNT (0xff00)
+
+static inline void arch_decomp_wdog(void)
+{
+	__raw_writel(WDOG_COUNT, S3C2410_WTCNT);
+}
+
+static void arch_decomp_wdog_start(void)
+{
+	__raw_writel(WDOG_COUNT, S3C2410_WTDAT);
+	__raw_writel(WDOG_COUNT, S3C2410_WTCNT);
+	__raw_writel(S3C2410_WTCON_ENABLE | S3C2410_WTCON_DIV128 | S3C2410_WTCON_RSTEN | S3C2410_WTCON_PRESCALE(0x80), S3C2410_WTCON);
+}
+
+#else
+#define arch_decomp_wdog_start()
+#define arch_decomp_wdog()
+#endif
+
+#ifdef CONFIG_S3C_BOOT_ERROR_RESET
+
+static void arch_decomp_error(const char *x)
+{
+	putstr("\n\n");
+	putstr(x);
+	putstr("\n\n -- System resetting\n");
+
+	__raw_writel(0x4000, S3C2410_WTDAT);
+	__raw_writel(0x4000, S3C2410_WTCNT);
+	__raw_writel(S3C2410_WTCON_ENABLE | S3C2410_WTCON_DIV128 | S3C2410_WTCON_RSTEN | S3C2410_WTCON_PRESCALE(0x40), S3C2410_WTCON);
+
+	while(1);
+}
+
+#define arch_error arch_decomp_error
+#endif
+
+#ifdef CONFIG_S3C_BOOT_UART_FORCE_FIFO
+static inline void arch_enable_uart_fifo(void)
+{
+	u32 fifocon = uart_rd(S3C2410_UFCON);
+
+	if (!(fifocon & S3C2410_UFCON_FIFOMODE)) {
+		fifocon |= S3C2410_UFCON_RESETBOTH;
+		uart_wr(S3C2410_UFCON, fifocon);
+
+		/* wait for fifo reset to complete */
+		while (1) {
+			fifocon = uart_rd(S3C2410_UFCON);
+			if (!(fifocon & S3C2410_UFCON_RESETBOTH))
+				break;
+		}
+	}
+}
+#else
+#define arch_enable_uart_fifo() do { } while(0)
+#endif
+
+static void arch_decomp_setup(void)
+{
+	/*
+	 * we may need to setup the uart(s) here if we are not running
+	 * on an BAST... the BAST will have left the uarts configured
+	 * after calling linux.
+	 */
+
+	arch_detect_cpu();
+	arch_decomp_wdog_start();
+
+	/*
+	 * Enable the UART FIFOs if they where not enabled and our
+	 * configuration says we should turn them on.
+	 */
+
+	arch_enable_uart_fifo();
+}
+
+
+
+static void arch_detect_cpu(void)
+{
+	/* we do not need to do any cpu detection here at the moment. */
+}
+
+#endif /* __ASM_ARCH_UNCOMPRESS_H */
diff --git a/arch/arm/mach-s5p64x0/include/mach/vmalloc.h b/arch/arm/mach-s5p64x0/include/mach/vmalloc.h
new file mode 100644
index 00000000000..97a9df38f1c
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/vmalloc.h
@@ -0,0 +1,20 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/vmalloc.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Copyright 2010 Ben Dooks <ben-linux@fluff.org>
+ *
+ * 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.
+ *
+ * S3C6400 vmalloc definition
+*/
+
+#ifndef __ASM_ARCH_VMALLOC_H
+#define __ASM_ARCH_VMALLOC_H
+
+#define VMALLOC_END	0xE0000000UL
+
+#endif /* __ASM_ARCH_VMALLOC_H */