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authorKukjin Kim <kgene.kim@samsung.com>2011-08-20 12:18:07 +0900
committerKukjin Kim <kgene.kim@samsung.com>2011-08-24 19:25:19 +0900
commite6d1cb9f1fffd7e300af6d8f6731a486d6255e3f (patch)
tree7247b6f99084bfe78fbf17c5284121aa6ffc5f08 /arch/arm/mach-s3c64xx/cpu.c
parenta3d9358406b7529373ccafbf6d264f811884959c (diff)
ARM: SAMSUNG: Add support for handling of cpu revision
This patch adds plat-samsung/cpu.c for detecting of cpu id and silicon revision. This patch was originally from Changhwan Youn <chaos.youn@samsung.com> Acked-by: Changhwan Youn <chaos.youn@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-s3c64xx/cpu.c')
-rw-r--r--arch/arm/mach-s3c64xx/cpu.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/arm/mach-s3c64xx/cpu.c b/arch/arm/mach-s3c64xx/cpu.c
index 7b665f3e2e1f..6c498f9a18c5 100644
--- a/arch/arm/mach-s3c64xx/cpu.c
+++ b/arch/arm/mach-s3c64xx/cpu.c
@@ -144,14 +144,8 @@ void __init s3c64xx_init_io(struct map_desc *mach_desc, int size)
iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));
iotable_init(mach_desc, size);
- 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);
- }
+ /* detect cpu id */
+ s3c64xx_init_cpu();
s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
}