/* linux/arch/arm/plat-s5pc1xx/cpu.c
*
* Copyright 2009 Samsung Electronics Co.
* Byungho Min <bhmin@samsung.com>
*
* S5PC1XX CPU Support
*
* Based on plat-s3c64xx/cpu.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/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <mach/map.h>
#include <asm/mach/map.h>
#include <plat/regs-serial.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/clock.h>
#include <plat/s5pc100.h>
/* table of supported CPUs */
static const char name_s5pc100[] = "S5PC100";
static struct cpu_table cpu_ids[] __initdata = {
{
.idcode = 0x43100000,
.idmask = 0xfffff000,
.map_io = s5pc100_map_io,
.init_clocks = s5pc100_init_clocks,
.init_uarts = s5pc100_init_uarts,
.init = s5pc100_init,
.name = name_s5pc100,
},
};
/* minimal IO mapping */
/* see notes on uart map in arch/arm/mach-s5pc100/include/mach/debug-macro.S */
#define UART_OFFS (S3C_PA_UART & 0xffff)
static struct map_desc s5pc1xx_iodesc[] __initdata = {
{
.virtual = (unsigned long)S5PC1XX_VA_CLK_OTHER,
.pfn = __phys_to_pfn(S5PC1XX_PA_CLK_OTHER),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5PC1XX_VA_GPIO,
.pfn = __phys_to_pfn(S5PC100_PA_GPIO),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5PC1XX_VA_CHIPID,
.pfn = __phys_to_pfn(S5PC1XX_PA_CHIPID),
.length = SZ_16,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5PC1XX_VA_CLK,
.pfn = __phys_to_pfn(S5PC1XX_PA_CLK),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5PC1XX_VA_PWR,
.pfn = __phys_to_pfn(S5PC1XX_PA_PWR),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)(S5PC1XX_VA_UART),
.pfn = __phys_to_pfn(S5PC1XX_PA_UART),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5PC1XX_VA_VIC(0),
.pfn = __phys_to_pfn(S5PC1XX_PA_VIC(0)),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5PC1XX_VA_VIC(1),
.pfn = __phys_to_pfn(S5PC1XX_PA_VIC(1)),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5PC1XX_VA_VIC(2),
.pfn = __phys_to_pfn(S5PC1XX_PA_VIC(2)),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5PC1XX_VA_TIMER,
.pfn = __phys_to_pfn(S5PC1XX_PA_TIMER),
.length = SZ_256,
.type = MT_DEVICE,
},
};
/* read cpu identification code */
void __init s5pc1xx_init_io(struct map_desc *mach_desc, int size)
{
unsigned long idcode;
/* initialise the io descriptors we need for initialisation */
iotable_init(s5pc1xx_iodesc, ARRAY_SIZE(s5pc1xx_iodesc));
iotable_init(mach_desc, size);
idcode = __raw_readl(S5PC1XX_VA_CHIPID);
s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids));
}
