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linux/arch/arm/mach-s3c6410/cpu.c
Ben Dooks 4b31d8b225 [ARM] S3C64XX: Add initial clock framework
Add the initial clocks definitions for the s3c6400
and s3c6410. Move the epll and ext clock from the
s3c2443 support into the common code.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-15 21:53:58 +00:00

89 lines
1.9 KiB
C

/* linux/arch/arm/mach-s3c6410/cpu.c
*
* Copyright 2008 Simtec Electronics
* Copyright 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
* 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 <mach/hardware.h>
#include <asm/irq.h>
#include <plat/cpu-freq.h>
#include <plat/regs-serial.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/clock.h>
#include <plat/s3c6410.h>
/* Initial IO mappings */
static struct map_desc s3c6410_iodesc[] __initdata = {
};
/* s3c6410_map_io
*
* register the standard cpu IO areas
*/
void __init s3c6410_map_io(void)
{
iotable_init(s3c6410_iodesc, ARRAY_SIZE(s3c6410_iodesc));
}
void __init s3c6410_init_clocks(int xtal)
{
printk(KERN_INFO "%s: initialising clocks\n", __func__);
s3c24xx_register_baseclocks(xtal);
s3c64xx_register_clocks();
}
void __init s3c6410_init_irq(void)
{
/* VIC0 is missing IRQ7, VIC1 is fully populated. */
s3c64xx_init_irq(~0 & ~(1 << 7), ~0);
}
struct sysdev_class s3c6410_sysclass = {
.name = "s3c6410-core",
};
static struct sys_device s3c6410_sysdev = {
.cls = &s3c6410_sysclass,
};
static int __init s3c6410_core_init(void)
{
return sysdev_class_register(&s3c6410_sysclass);
}
core_initcall(s3c6410_core_init);
int __init s3c6410_init(void)
{
printk("S3C6410: Initialising architecture\n");
return sysdev_register(&s3c6410_sysdev);
}