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@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"