diff options
| author | Amit Daniel Kachhap <amit.kachhap@linaro.org> | 2011-11-11 13:49:57 +0530 |
|---|---|---|
| committer | Amit Daniel Kachhap <amit.kachhap@linaro.org> | 2011-11-11 14:11:42 +0530 |
| commit | e982cd3347519e59a7499644603f8402b02bcba8 (patch) | |
| tree | d806f24df5f155c127623836786c6c9fbb7f6d06 /arch/arm/mach-exynos4/cpu.c | |
| parent | 41518122dfdff24f5c4d60277af9b1162f0c7b6c (diff) | |
ARM: EXYNOS4: Added function to read chip id
This adds a function to get the revision id. This is a temporary workaround patch
and may get dropped later.
Signed-off-by: Jaecheol Lee <jc.lee@samsung.com>
Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org>
Diffstat (limited to 'arch/arm/mach-exynos4/cpu.c')
| -rw-r--r-- | arch/arm/mach-exynos4/cpu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/cpu.c b/arch/arm/mach-exynos4/cpu.c index 979fb5d4367..c1cb39df589 100644 --- a/arch/arm/mach-exynos4/cpu.c +++ b/arch/arm/mach-exynos4/cpu.c @@ -260,6 +260,15 @@ static int __init exynos4_l2x0_cache_init(void) early_initcall(exynos4_l2x0_cache_init); #endif +int exynos4_subrev(void) +{ + static int subrev = -1; + if (unlikely(subrev < 0)) + subrev = readl(S5P_VA_CHIPID) & 0xf; + + return subrev; +} + int __init exynos4_init(void) { printk(KERN_INFO "EXYNOS4: Initializing architecture\n"); |