[U-Boot] [PATCH v2] tegra2: Enable data cache
Simon Glass
sjg at chromium.org
Wed Sep 21 23:24:21 CEST 2011
This enables the data cache on Tegra2 boards.
As discussed on the list, this is better off in the Tegra2 cpu code than in a
particular vendor directory. We should be safe turning on the cache for all
Tegra2 boards.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v2:
- Enable caches for all Tegra2 boards instead of just Nvidia ones
arch/arm/cpu/armv7/tegra2/board.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/armv7/tegra2/board.c b/arch/arm/cpu/armv7/tegra2/board.c
index 9061d18..a996b88 100644
--- a/arch/arm/cpu/armv7/tegra2/board.c
+++ b/arch/arm/cpu/armv7/tegra2/board.c
@@ -86,3 +86,11 @@ int checkboard(void)
return 0;
}
#endif /* CONFIG_DISPLAY_BOARDINFO */
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+ /* Enable D-cache. I-cache is already enabled in start.S */
+ dcache_enable();
+}
+#endif
--
1.7.3.1
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