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 <ag...@suse.de>
---
v1 -> v2:
- Move to KConfig
- Adapt to new define name
---
arch/arm/mach-bcm283x/Kconfig | 1 +
arch/arm/mach-bcm283x/init.c | 7 +++++++
include/configs/rpi_2.h | 1 -
3 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig
index 2315a13..1a7baf6 100644
--- a/arch/arm/mach-bcm283x/Kconfig
+++ b/arch/arm/mach-bcm283x/Kconfig
@@ -12,6 +12,7 @@ config TARGET_RPI
config TARGET_RPI_2
bool "Raspberry Pi 2"
select CPU_V7
+ select ARMV7_LPAE
endchoice
diff --git a/arch/arm/mach-bcm283x/init.c b/arch/arm/mach-bcm283x/init.c
index d2d366b..4fa94db 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_ARMV7_LPAE
+void enable_caches(void)
+{
+ dcache_enable();
+}
+#endif
diff --git a/include/configs/rpi_2.h b/include/configs/rpi_2.h
index bea4ebd..13dc8de 100644
--- a/include/configs/rpi_2.h
+++ b/include/configs/rpi_2.h
@@ -10,7 +10,6 @@
#define CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_BCM2836
#define CONFIG_SYS_CACHELINE_SIZE 64
-#define CONFIG_SYS_DCACHE_OFF
#include "rpi-common.h"
--
1.8.5.6
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