113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
/* 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_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));
|
|
}
|