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/* linux/arch/arm/mach-s5pv210/cpu.c
*
* Copyright (c) 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/module.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/sysdev.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/map.h>
#include <mach/regs-clock.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/clock.h>
#include <plat/s5pv210.h>
/* Initial IO mappings */
static struct map_desc s5pv210_iodesc[] __initdata = {
{
.virtual = (unsigned long)S5P_VA_SYSTIMER,
.pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER),
.length = SZ_1M,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)VA_VIC2,
.pfn = __phys_to_pfn(S5PV210_PA_VIC2),
.length = SZ_16K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)VA_VIC3,
.pfn = __phys_to_pfn(S5PV210_PA_VIC3),
.length = SZ_16K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5P_VA_SROMC,
.pfn = __phys_to_pfn(S5PV210_PA_SROMC),
.length = SZ_4K,
.type = MT_DEVICE,
}
};
static void s5pv210_idle(void)
{
if (!need_resched())
cpu_do_idle();
local_irq_enable();
}
/* s5pv210_map_io
*
* register the standard cpu IO areas
*/
void __init s5pv210_map_io(void)
{
iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
}
void __init s5pv210_init_clocks(int xtal)
{
printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
s3c24xx_register_baseclocks(xtal);
s5p_register_clocks(xtal);
s5pv210_register_clocks();
s5pv210_setup_clocks();
}
void __init s5pv210_init_irq(void)
{
u32 vic[4]; /* S5PV210 supports 4 VIC */
/* All the VICs are fully populated. */
vic[0] = ~0;
vic[1] = ~0;
vic[2] = ~0;
vic[3] = ~0;
s5p_init_irq(vic, ARRAY_SIZE(vic));
}
static struct sysdev_class s5pv210_sysclass = {
.name = "s5pv210-core",
};
static struct sys_device s5pv210_sysdev = {
.cls = &s5pv210_sysclass,
};
static int __init s5pv210_core_init(void)
{
return sysdev_class_register(&s5pv210_sysclass);
}
core_initcall(s5pv210_core_init);
int __init s5pv210_init(void)
{
printk(KERN_INFO "S5PV210: Initializing architecture\n");
/* set idle function */
pm_idle = s5pv210_idle;
return sysdev_register(&s5pv210_sysdev);
}
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