[U-Boot] [PATCH] EXYNOS: add the enable_cache function for support cache

[Jaehoon Chung]

By default, enable_cache() is implemented in arch/arm/lib.
But didn't implemented enable_cache().
It should be implemented in platform code.
This patch is added the enable_cache() in platform code for supporting
cache

Signed-off-by: Jaehoon Chung <jh80.chung at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 arch/arm/cpu/armv7/s5p-common/cpu_info.c |    8 ++++++++
 include/configs/s5pc210_universal.h      |    3 ---
 include/configs/trats.h                  |    3 ---
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/arm/cpu/armv7/s5p-common/cpu_info.c b/arch/arm/cpu/armv7/s5p-common/cpu_info.c
index 527f32d..a015930 100644
--- a/arch/arm/cpu/armv7/s5p-common/cpu_info.c
+++ b/arch/arm/cpu/armv7/s5p-common/cpu_info.c
@@ -54,3 +54,11 @@ int print_cpuinfo(void)
 	return 0;
 }
 #endif
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+}
+#endif
diff --git a/include/configs/s5pc210_universal.h b/include/configs/s5pc210_universal.h
index 1301275..5ea09d7 100644
--- a/include/configs/s5pc210_universal.h
+++ b/include/configs/s5pc210_universal.h
@@ -41,9 +41,6 @@
 #define CONFIG_DISPLAY_CPUINFO
 #define CONFIG_DISPLAY_BOARDINFO
 
-/* Keep L2 Cache Disabled */
-#define CONFIG_SYS_L2CACHE_OFF		1
-
 #define CONFIG_SYS_SDRAM_BASE		0x40000000
 #define CONFIG_SYS_TEXT_BASE		0x44800000
 
diff --git a/include/configs/trats.h b/include/configs/trats.h
index 5f913ca..480fcf0 100644
--- a/include/configs/trats.h
+++ b/include/configs/trats.h
@@ -41,9 +41,6 @@
 #define CONFIG_DISPLAY_CPUINFO
 #define CONFIG_DISPLAY_BOARDINFO
 
-/* Keep L2 Cache Disabled */
-#define CONFIG_SYS_L2CACHE_OFF
-
 #define CONFIG_SYS_SDRAM_BASE		0x40000000
 #define CONFIG_SYS_TEXT_BASE		0x63300000