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arm:exynos: add cpu revision

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This patch enables to read cpu revision on Exynos CPU.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Piotr Wilczek 2014-01-22 15:54:30 +01:00 committed by Minkyu Kang
parent e6252fab2d
commit 34991bbf47
1 changed files with 6 additions and 2 deletions
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8
arch/arm/include/asm/arch-exynos/cpu.h
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@ -185,9 +185,11 @@ static inline int s5p_get_cpu_rev(void)
static inline void s5p_set_cpu_id(void)
{
unsigned int pro_id = (readl(EXYNOS4_PRO_ID) & 0x00FFF000) >> 12;
unsigned int pro_id = readl(EXYNOS4_PRO_ID);
unsigned int cpu_id = (pro_id & 0x00FFF000) >> 12;
unsigned int cpu_rev = pro_id & 0x000000FF;
switch (pro_id) {
switch (cpu_id) {
case 0x200:
/* Exynos4210 EVT0 */
s5p_cpu_id = 0x4210;
@ -196,10 +198,12 @@ static inline void s5p_set_cpu_id(void)
case 0x210:
/* Exynos4210 EVT1 */
s5p_cpu_id = 0x4210;
s5p_cpu_rev = cpu_rev;
break;
case 0x412:
/* Exynos4412 */
s5p_cpu_id = 0x4412;
s5p_cpu_rev = cpu_rev;
break;
case 0x520:
/* Exynos5250 */