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/* linux/arch/arm/mach-s5pc100/cpu.c
*
* Copyright 2009 Samsung Electronics Co.
* Byungho Min <bhmin@samsung.com>
*
* Based on mach-s3c6410/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/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 <mach/hardware.h>
#include <mach/map.h>
#include <asm/irq.h>
#include <plat/regs-serial.h>
#include <mach/regs-clock.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/clock.h>
#include <plat/iic-core.h>
#include <plat/sdhci.h>
#include <plat/onenand-core.h>
#include <plat/s5pc100.h>
/* Initial IO mappings */
static struct map_desc s5pc100_iodesc[] __initdata = {
{
.virtual = (unsigned long)S5P_VA_SYSTIMER,
.pfn = __phys_to_pfn(S5PC100_PA_SYSTIMER),
.length = SZ_16K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)VA_VIC2,
.pfn = __phys_to_pfn(S5P_PA_VIC2),
.length = SZ_16K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5PC100_VA_OTHERS,
.pfn = __phys_to_pfn(S5PC100_PA_OTHERS),
.length = SZ_4K,
.type = MT_DEVICE,
}
};
static void s5pc100_idle(void)
{
if (!need_resched())
cpu_do_idle();
local_irq_enable();
}
/* s5pc100_map_io
*
* register the standard cpu IO areas
*/
void __init s5pc100_map_io(void)
{
iotable_init(s5pc100_iodesc, ARRAY_SIZE(s5pc100_iodesc));
/* initialise device information early */
s5pc100_default_sdhci0();
s5pc100_default_sdhci1();
s5pc100_default_sdhci2();
/* the i2c devices are directly compatible with s3c2440 */
s3c_i2c0_setname("s3c2440-i2c");
s3c_i2c1_setname("s3c2440-i2c");
s3c_onenand_setname("s5pc100-onenand");
}
void __init s5pc100_init_clocks(int xtal)
{
printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
s3c24xx_register_baseclocks(xtal);
s5p_register_clocks(xtal);
s5pc100_register_clocks();
s5pc100_setup_clocks();
}
void __init s5pc100_init_irq(void)
{
u32 vic[] = {~0, ~0, ~0};
/* VIC0, VIC1, and VIC2 are fully populated. */
s5p_init_irq(vic, ARRAY_SIZE(vic));
}
static struct sysdev_class s5pc100_sysclass = {
.name = "s5pc100-core",
};
static struct sys_device s5pc100_sysdev = {
.cls = &s5pc100_sysclass,
};
static int __init s5pc100_core_init(void)
{
return sysdev_class_register(&s5pc100_sysclass);
}
core_initcall(s5pc100_core_init);
int __init s5pc100_init(void)
{
printk(KERN_INFO "S5PC100: Initializing architecture\n");
/* set idle function */
pm_idle = s5pc100_idle;
return sysdev_register(&s5pc100_sysdev);
}
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