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[ARM] S3C64XX: Add S3C6400 CPU detection.

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Add detection support for the S3C6400 SoC which has it's
id register in a different place to the S3C6410.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Ben Dooks 2009-03-24 17:31:42 +00:00
parent a6925c1c51
commit e074f98032
1 changed files with 8 additions and 0 deletions
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8
arch/arm/plat-s3c64xx/cpu.c
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@ -126,6 +126,14 @@ void __init s3c64xx_init_io(struct map_desc *mach_desc, int size)
iotable_init(mach_desc, size);
idcode = __raw_readl(S3C_VA_SYS + 0x118);
if (!idcode) {
/* 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);
idcode = __raw_readl(S3C_VA_SYS + 0xA1C);
}
s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids));
}