[U-Boot] [PATCH] arm:exynos: Enable data cache at exynos based processors.

Lukasz Majewski l.majewski at samsung.com
Tue Aug 7 15:24:03 CEST 2012


This patch enables the L1 data cache for systems based on Samsung
Exynos processor.

Signed-off-by: Lukasz Majewski <l.majewski at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
Cc: Minkyu Kang <mk7.kang at samsung.com>
---
 arch/arm/cpu/armv7/exynos/soc.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/cpu/armv7/exynos/soc.c b/arch/arm/cpu/armv7/exynos/soc.c
index dcfcec2..ab65b8d 100644
--- a/arch/arm/cpu/armv7/exynos/soc.c
+++ b/arch/arm/cpu/armv7/exynos/soc.c
@@ -28,3 +28,11 @@ void reset_cpu(ulong addr)
 {
 	writel(0x1, samsung_get_base_swreset());
 }
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+}
+#endif
-- 
1.7.2.3



More information about the U-Boot mailing list