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>
diff --git a/arch/arm/mach-s3c64xx/cpu.c b/arch/arm/mach-s3c64xx/cpu.c
index 7b665f3..6c498f9 100644
--- a/arch/arm/mach-s3c64xx/cpu.c
+++ b/arch/arm/mach-s3c64xx/cpu.c
@@ -144,14 +144,8 @@
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));
}