tegra2: Enable data cache

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@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

diff --git a/arch/arm/cpu/armv7/tegra2/board.c b/arch/arm/cpu/armv7/tegra2/board.c
index 8e28d08247dfb82b8e3987f73b0420cdbc2340b7..349d50e1ac4adbc1b509d0d5a7302d384a42c663 100644 (file)
--- a/arch/arm/cpu/armv7/tegra2/board.c
+++ b/arch/arm/cpu/armv7/tegra2/board.c
@@ -141,3 +141,11 @@ void board_init_uart_f(void)
 #endif
        setup_uarts(uart_ids);
 }
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+       /* Enable D-cache. I-cache is already enabled in start.S */
+       dcache_enable();
+}
+#endif