[U-Boot] [PATCH 1/3] exynos: config: enable arch memcpy and arch memset

Przemyslaw Marczak
2015-01-28T12:55:41Z

This commit enables the following configs:
- CONFIG_USE_ARCH_MEMCPY
- CONFIG_USE_ARCH_MEMSET
This increases the performance of memcpy/memset
and also reduces the boot time.

This was tested on Trats2.
A quick test with trace. Boot time from start to main_loop() entry:
- ~1527ms - before this change (arch memset enabled for .bss clear)
- ~1384ms - after this change

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Akshay Saraswat <akshay.s@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
---
include/configs/exynos-common.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/include/configs/exynos-common.h b/include/configs/exynos-common.h
index 1f3ee55..5c14c40 100644
--- a/include/configs/exynos-common.h
+++ b/include/configs/exynos-common.h
@@ -30,6 +30,9 @@
#define CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_BOARD_EARLY_INIT_F

+#define CONFIG_USE_ARCH_MEMCPY
+#define CONFIG_USE_ARCH_MEMSET
+
/* Keep L2 Cache Disabled */
#define CONFIG_CMD_CACHE

--
1.9.1