2010-02-24 15:40:29 +08:00
|
|
|
/* 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));
|
|
|
|
}
|
|
|
|
|
2010-05-11 08:56:37 +08:00
|
|
|
struct sysdev_class s5pv210_sysclass = {
|
2010-02-24 15:40:29 +08:00
|
|
|
.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);
|
|
|
|
}
|