aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-s5p64x0
diff options
context:
space:
mode:
authorKukjin Kim <kgene.kim@samsung.com>2010-10-18 18:29:51 +0900
committerKukjin Kim <kgene.kim@samsung.com>2010-10-18 18:29:51 +0900
commita2e0d6249fa866ce7f5a8fe08a4d75511e4701c6 (patch)
tree9ff61cc5edcc4f59f2f170d390c174a7a50a12fa /arch/arm/mach-s5p64x0
parent49b7a491b797305a0dc373e7f7a5d2a87955c819 (diff)
downloadlinux-linaro-stable-a2e0d6249fa866ce7f5a8fe08a4d75511e4701c6.tar.gz
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>
Diffstat (limited to 'arch/arm/mach-s5p64x0')
-rw-r--r--arch/arm/mach-s5p64x0/cpu.c208
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/debug-macro.S33
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/entry-macro.S16
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/hardware.h18
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/io.h25
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/map.h83
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/memory.h19
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/system.h23
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/timex.h27
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/uncompress.h212
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/vmalloc.h20
-rw-r--r--arch/arm/mach-s5p64x0/init.c73
12 files changed, 757 insertions, 0 deletions
diff --git a/arch/arm/mach-s5p64x0/cpu.c b/arch/arm/mach-s5p64x0/cpu.c
new file mode 100644
index 000000000000..fb90a3004e98
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/cpu.c
@@ -0,0 +1,208 @@
+/* linux/arch/arm/mach-s5p64x0/cpu.c
+ *
+ * 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.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/sysdev.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/proc-fns.h>
+#include <asm/irq.h>
+
+#include <mach/hardware.h>
+#include <mach/map.h>
+#include <mach/regs-clock.h>
+
+#include <plat/regs-serial.h>
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/clock.h>
+#include <plat/s5p6440.h>
+#include <plat/s5p6450.h>
+#include <plat/adc-core.h>
+
+/* Initial IO mappings */
+
+static struct map_desc s5p64x0_iodesc[] __initdata = {
+ {
+ .virtual = (unsigned long)S5P_VA_GPIO,
+ .pfn = __phys_to_pfn(S5P64X0_PA_GPIO),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = (unsigned long)VA_VIC0,
+ .pfn = __phys_to_pfn(S5P64X0_PA_VIC0),
+ .length = SZ_16K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = (unsigned long)VA_VIC1,
+ .pfn = __phys_to_pfn(S5P64X0_PA_VIC1),
+ .length = SZ_16K,
+ .type = MT_DEVICE,
+ },
+};
+
+static struct map_desc s5p6440_iodesc[] __initdata = {
+ {
+ .virtual = (unsigned long)S3C_VA_UART,
+ .pfn = __phys_to_pfn(S5P6440_PA_UART(0)),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+};
+
+static struct map_desc s5p6450_iodesc[] __initdata = {
+ {
+ .virtual = (unsigned long)S3C_VA_UART,
+ .pfn = __phys_to_pfn(S5P6450_PA_UART(0)),
+ .length = SZ_512K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = (unsigned long)S3C_VA_UART + SZ_512K,
+ .pfn = __phys_to_pfn(S5P6450_PA_UART(5)),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+};
+
+static void s5p64x0_idle(void)
+{
+ unsigned long val;
+
+ if (!need_resched()) {
+ val = __raw_readl(S5P64X0_PWR_CFG);
+ val &= ~(0x3 << 5);
+ val |= (0x1 << 5);
+ __raw_writel(val, S5P64X0_PWR_CFG);
+
+ cpu_do_idle();
+ }
+ local_irq_enable();
+}
+
+/*
+ * s5p64x0_map_io
+ *
+ * register the standard CPU IO areas
+ */
+
+void __init s5p6440_map_io(void)
+{
+ /* initialize any device information early */
+ s3c_adc_setname("s3c64x0-adc");
+
+ iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc));
+ iotable_init(s5p6440_iodesc, ARRAY_SIZE(s5p6440_iodesc));
+}
+
+void __init s5p6450_map_io(void)
+{
+ /* initialize any device information early */
+ s3c_adc_setname("s3c64x0-adc");
+
+ iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc));
+ iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6440_iodesc));
+}
+
+/*
+ * s5p64x0_init_clocks
+ *
+ * register and setup the CPU clocks
+ */
+
+void __init s5p6440_init_clocks(int xtal)
+{
+ printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+ s3c24xx_register_baseclocks(xtal);
+ s5p_register_clocks(xtal);
+ s5p6440_register_clocks();
+ s5p6440_setup_clocks();
+}
+
+void __init s5p6450_init_clocks(int xtal)
+{
+ printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+ s3c24xx_register_baseclocks(xtal);
+ s5p_register_clocks(xtal);
+ s5p6450_register_clocks();
+ s5p6450_setup_clocks();
+}
+
+/*
+ * s5p64x0_init_irq
+ *
+ * register the CPU interrupts
+ */
+
+void __init s5p6440_init_irq(void)
+{
+ /* S5P6440 supports 2 VIC */
+ u32 vic[2];
+
+ /*
+ * VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)]
+ * VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22]
+ */
+ vic[0] = 0xff800ae7;
+ vic[1] = 0xffbf23e5;
+
+ s5p_init_irq(vic, ARRAY_SIZE(vic));
+}
+
+void __init s5p6450_init_irq(void)
+{
+ /* S5P6450 supports only 2 VIC */
+ u32 vic[2];
+
+ /*
+ * VIC0 is missing IRQ_VIC0[(13-15), (21-22)]
+ * VIC1 is missing IRQ VIC1[12, 14, 23]
+ */
+ vic[0] = 0xff9f1fff;
+ vic[1] = 0xff7fafff;
+
+ s5p_init_irq(vic, ARRAY_SIZE(vic));
+}
+
+struct sysdev_class s5p64x0_sysclass = {
+ .name = "s5p64x0-core",
+};
+
+static struct sys_device s5p64x0_sysdev = {
+ .cls = &s5p64x0_sysclass,
+};
+
+static int __init s5p64x0_core_init(void)
+{
+ return sysdev_class_register(&s5p64x0_sysclass);
+}
+core_initcall(s5p64x0_core_init);
+
+int __init s5p64x0_init(void)
+{
+ printk(KERN_INFO "S5P64X0(S5P6440/S5P6450): Initializing architecture\n");
+
+ /* set idle function */
+ pm_idle = s5p64x0_idle;
+
+ return sysdev_register(&s5p64x0_sysdev);
+}
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 000000000000..79b04e6a6f8e
--- /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 000000000000..10b62b4f8211
--- /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 000000000000..d3e87996dd9a
--- /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 000000000000..a3e095c02fb5
--- /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 000000000000..31e534156e06
--- /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 000000000000..1b036b0a24ce
--- /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 000000000000..60f57532c970
--- /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 000000000000..4b91faa195a8
--- /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 000000000000..c65b229aab23
--- /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 000000000000..97a9df38f1cf
--- /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 */
diff --git a/arch/arm/mach-s5p64x0/init.c b/arch/arm/mach-s5p64x0/init.c
new file mode 100644
index 000000000000..79833caf8165
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/init.c
@@ -0,0 +1,73 @@
+/* linux/arch/arm/mach-s5p64x0/init.c
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * S5P64X0 - Init 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.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+
+#include <mach/map.h>
+
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/s5p6440.h>
+#include <plat/s5p6450.h>
+#include <plat/regs-serial.h>
+
+static struct s3c24xx_uart_clksrc s5p64x0_serial_clocks[] = {
+ [0] = {
+ .name = "pclk_low",
+ .divisor = 1,
+ .min_baud = 0,
+ .max_baud = 0,
+ },
+ [1] = {
+ .name = "uclk1",
+ .divisor = 1,
+ .min_baud = 0,
+ .max_baud = 0,
+ },
+};
+
+/* uart registration process */
+
+void __init s5p64x0_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
+{
+ struct s3c2410_uartcfg *tcfg = cfg;
+ u32 ucnt;
+
+ for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
+ if (!tcfg->clocks) {
+ tcfg->clocks = s5p64x0_serial_clocks;
+ tcfg->clocks_size = ARRAY_SIZE(s5p64x0_serial_clocks);
+ }
+ }
+}
+
+void __init s5p6440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
+{
+ int uart;
+
+ for (uart = 0; uart < no; uart++) {
+ s5p_uart_resources[uart].resources->start = S5P6440_PA_UART(uart);
+ s5p_uart_resources[uart].resources->end = S5P6440_PA_UART(uart) + S5P_SZ_UART;
+ }
+
+ s5p64x0_common_init_uarts(cfg, no);
+ s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
+}
+
+void __init s5p6450_init_uarts(struct s3c2410_uartcfg *cfg, int no)
+{
+ s5p64x0_common_init_uarts(cfg, no);
+ s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
+}