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| author | Ben Dooks <ben-linux@fluff.org> | 2010-04-28 13:00:07 +0400 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2010-05-10 06:44:41 +0400 |
| commit | d11a7d7100123d178821f82ecc11ba2d9d6e97c8 (patch) | |
| tree | 50e57fe2dc41cbd53b8985db45b77d269916816b /arch/arm/plat-s3c24xx/cpu.c | |
| parent | d24131470f3def698683144cf1e81ee0f4f9c0b8 (diff) | |
| download | linux-d11a7d7100123d178821f82ecc11ba2d9d6e97c8.tar.xz | |
ARM: S3C24XX: Identify S3C2416 if S3C2412/S3C2413 built in
Extend the ARMv5 ID code to deal with S3C2416 being built with
S3C2412/S3C2413 enabled, as these have their ID registers in a
different place.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/plat-s3c24xx/cpu.c')
| -rw-r--r-- | arch/arm/plat-s3c24xx/cpu.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c index 494f4f3a9332..32db85651af0 100644 --- a/arch/arm/plat-s3c24xx/cpu.c +++ b/arch/arm/plat-s3c24xx/cpu.c @@ -181,10 +181,18 @@ static struct map_desc s3c_iodesc[] __initdata = { static unsigned long s3c24xx_read_idcode_v5(void) { +#if defined(CONFIG_CPU_S3C2416) + /* s3c2416 is v5, with S3C24XX_GSTATUS1 instead of S3C2412_GSTATUS1 */ + + u32 gs = __raw_readl(S3C24XX_GSTATUS1); + + /* test for s3c2416 or similar device */ + if ((gs >> 16) == 0x3245) + return gs; +#endif + #if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413) return __raw_readl(S3C2412_GSTATUS1); -#elif defined(CONFIG_CPU_S3C2416) - return __raw_readl(S3C24XX_GSTATUS1); #else return 1UL; /* don't look like an 2400 */ #endif |