[U-Boot] [PATCH 4/5] RPi: Enable caches for rpi2

[Alexander Graf]

Now that we have support for running with caches enabled in HYP mode,
opt in to that on the Raspberry Pi 2. This brings a significant performance
boost.

Signed-off-by: Alexander Graf <agraf at suse.de>
---
 arch/arm/mach-bcm283x/init.c | 7 +++++++
 include/configs/rpi_2.h      | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-bcm283x/init.c b/arch/arm/mach-bcm283x/init.c
index d2d366b..2ec87c2 100644
--- a/arch/arm/mach-bcm283x/init.c
+++ b/arch/arm/mach-bcm283x/init.c
@@ -15,3 +15,10 @@ int arch_cpu_init(void)
 
 	return 0;
 }
+
+#ifdef CONFIG_SYS_ARM_LPAE
+void enable_caches(void)
+{
+	dcache_enable();
+}
+#endif
diff --git a/include/configs/rpi_2.h b/include/configs/rpi_2.h
index bea4ebd..14b807a 100644
--- a/include/configs/rpi_2.h
+++ b/include/configs/rpi_2.h
@@ -10,7 +10,7 @@
 #define CONFIG_SKIP_LOWLEVEL_INIT
 #define CONFIG_BCM2836
 #define CONFIG_SYS_CACHELINE_SIZE		64
-#define CONFIG_SYS_DCACHE_OFF
+#define CONFIG_SYS_ARM_LPAE
 
 #include "rpi-common.h"
 
-- 
1.8.5.6