Exynos: fix cpuinfo and cpu detecting
Since Exynos architecture have new SoCs,
need to fix cpuinfo correctly.
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Chander Kashyap <chander.kashyap@linaro.org>
diff --git a/arch/arm/cpu/armv7/s5p-common/cpu_info.c b/arch/arm/cpu/armv7/s5p-common/cpu_info.c
index 527f32d..1642733 100644
--- a/arch/arm/cpu/armv7/s5p-common/cpu_info.c
+++ b/arch/arm/cpu/armv7/s5p-common/cpu_info.c
@@ -48,8 +48,9 @@
{
char buf[32];
- printf("CPU:\tS5P%X@%sMHz\n",
- s5p_cpu_id, strmhz(buf, get_arm_clk()));
+ printf("CPU:\t%s%X@%sMHz\n",
+ s5p_get_cpu_name(), s5p_cpu_id,
+ strmhz(buf, get_arm_clk()));
return 0;
}
diff --git a/arch/arm/include/asm/arch-exynos/cpu.h b/arch/arm/include/asm/arch-exynos/cpu.h
index ac4ddc7..b1e22f2 100644
--- a/arch/arm/include/asm/arch-exynos/cpu.h
+++ b/arch/arm/include/asm/arch-exynos/cpu.h
@@ -24,6 +24,7 @@
#define DEVICE_NOT_AVAILABLE 0
+#define EXYNOS_CPU_NAME "Exynos"
#define EXYNOS4_ADDR_BASE 0x10000000
/* EXYNOS4 */
@@ -93,29 +94,42 @@
static inline void s5p_set_cpu_id(void)
{
- s5p_cpu_id = readl(EXYNOS4_PRO_ID);
- s5p_cpu_id = (0xC000 | ((s5p_cpu_id & 0x00FFF000) >> 12));
+ unsigned int pro_id = (readl(EXYNOS4_PRO_ID) & 0x00FFF000) >> 12;
- /*
- * 0xC200: EXYNOS4210 EVT0
- * 0xC210: EXYNOS4210 EVT1
- */
- if (s5p_cpu_id == 0xC200) {
- s5p_cpu_id |= 0x10;
+ switch (pro_id) {
+ case 0x200:
+ /* Exynos4210 EVT0 */
+ s5p_cpu_id = 0x4210;
s5p_cpu_rev = 0;
- } else if (s5p_cpu_id == 0xC210) {
- s5p_cpu_rev = 1;
+ break;
+ case 0x210:
+ /* Exynos4210 EVT1 */
+ s5p_cpu_id = 0x4210;
+ break;
+ case 0x412:
+ /* Exynos4412 */
+ s5p_cpu_id = 0x4412;
+ break;
+ case 0x520:
+ /* Exynos5250 */
+ s5p_cpu_id = 0x5250;
+ break;
}
}
+static inline char *s5p_get_cpu_name(void)
+{
+ return EXYNOS_CPU_NAME;
+}
+
#define IS_SAMSUNG_TYPE(type, id) \
static inline int cpu_is_##type(void) \
{ \
- return s5p_cpu_id == id ? 1 : 0; \
+ return (s5p_cpu_id >> 12) == id; \
}
-IS_SAMSUNG_TYPE(exynos4, 0xc210)
-IS_SAMSUNG_TYPE(exynos5, 0xc520)
+IS_SAMSUNG_TYPE(exynos4, 0x4)
+IS_SAMSUNG_TYPE(exynos5, 0x5)
#define SAMSUNG_BASE(device, base) \
static inline unsigned int samsung_get_base_##device(void) \
diff --git a/arch/arm/include/asm/arch-s5pc1xx/cpu.h b/arch/arm/include/asm/arch-s5pc1xx/cpu.h
index 510ead4..2362b99 100644
--- a/arch/arm/include/asm/arch-s5pc1xx/cpu.h
+++ b/arch/arm/include/asm/arch-s5pc1xx/cpu.h
@@ -23,6 +23,7 @@
#ifndef _S5PC1XX_CPU_H
#define _S5PC1XX_CPU_H
+#define S5P_CPU_NAME "S5P"
#define S5PC1XX_ADDR_BASE 0xE0000000
/* S5PC100 */
@@ -71,6 +72,11 @@
s5p_cpu_id = 0xC000 | ((s5p_cpu_id & 0x00FFF000) >> 12);
}
+static inline char *s5p_get_cpu_name(void)
+{
+ return S5P_CPU_NAME;
+}
+
#define IS_SAMSUNG_TYPE(type, id) \
static inline int cpu_is_##type(void) \
{ \