[U-Boot] [PATCH] am33xx: Enable D-CACHE on !CONFIG_SYS_DCACHE_OFF

Test on Beaglebone white over cpsw, usb ether and SD card (read and write), performance increased, crc32 of data matches.

Signed-off-by: Tom Rini trini@ti.com --- arch/arm/cpu/armv7/am33xx/board.c | 8 ++++++++ 1 file changed, 8 insertions(+)

diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c index 2ea3d69..c261af5 100644 --- a/arch/arm/cpu/armv7/am33xx/board.c +++ b/arch/arm/cpu/armv7/am33xx/board.c @@ -225,3 +225,11 @@ void s_init(void) sdram_init(); #endif } + +#ifndef CONFIG_SYS_DCACHE_OFF +void enable_caches(void) +{ + /* Enable D-cache. I-cache is already enabled in start.S */ + dcache_enable(); +} +#endif /* !CONFIG_SYS_DCACHE_OFF */