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RPi: Enable caches for rpi2

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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>
This commit is contained in:
Alexander Graf
2016-03-16 15:41:23 +01:00
committed by Tom Rini
parent f8f58fbb09
commit ccd9d51ede
3 changed files with 8 additions and 1 deletions
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1
arch/arm/mach-bcm283x/Kconfig
View File

@@ -12,6 +12,7 @@ config TARGET_RPI
config TARGET_RPI_2 config TARGET_RPI_2
bool "Raspberry Pi 2" bool "Raspberry Pi 2"
select CPU_V7 select CPU_V7
select ARMV7_LPAE
endchoice endchoice

7
arch/arm/mach-bcm283x/init.c
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@@ -15,3 +15,10 @@ int arch_cpu_init(void)
return 0; return 0;
} }
#ifdef CONFIG_ARMV7_LPAE
void enable_caches(void)
{
dcache_enable();
}
#endif

1
include/configs/rpi_2.h
View File

@@ -10,7 +10,6 @@
#define CONFIG_SKIP_LOWLEVEL_INIT #define CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_BCM2836 #define CONFIG_BCM2836
#define CONFIG_SYS_CACHELINE_SIZE 64 #define CONFIG_SYS_CACHELINE_SIZE 64
#define CONFIG_SYS_DCACHE_OFF
#include "rpi-common.h" #include "rpi-common.h"