forked from luck/tmp_suning_uos_patched
d78c16ccde
After refactoring suspend/resume, which was last part with dependencies on legacy code, all Kconfig symbols related to Samsung ATAGS support can be deselected and more unused code removed. This includes most of s5p-* code as well, as s5pv210 was their last user. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/* linux/arch/arm/plat-samsung/cpu.c
|
|
*
|
|
* Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com
|
|
*
|
|
* Samsung CPU Support
|
|
*
|
|
* 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/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <plat/map-base.h>
|
|
#include <plat/cpu.h>
|
|
|
|
unsigned long samsung_cpu_id;
|
|
static unsigned int samsung_cpu_rev;
|
|
|
|
unsigned int samsung_rev(void)
|
|
{
|
|
return samsung_cpu_rev;
|
|
}
|
|
EXPORT_SYMBOL(samsung_rev);
|
|
|
|
void __init s3c64xx_init_cpu(void)
|
|
{
|
|
samsung_cpu_id = __raw_readl(S3C_VA_SYS + 0x118);
|
|
if (!samsung_cpu_id) {
|
|
/*
|
|
* S3C6400 has the ID register in a different place,
|
|
* and needs a write before it can be read.
|
|
*/
|
|
__raw_writel(0x0, S3C_VA_SYS + 0xA1C);
|
|
samsung_cpu_id = __raw_readl(S3C_VA_SYS + 0xA1C);
|
|
}
|
|
|
|
samsung_cpu_rev = 0;
|
|
}
|
|
|
|
void __init s5p_init_cpu(void __iomem *cpuid_addr)
|
|
{
|
|
samsung_cpu_id = __raw_readl(cpuid_addr);
|
|
samsung_cpu_rev = samsung_cpu_id & 0xFF;
|
|
}
|