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[U-Boot,v3,1/6] exynos: config: enable arch memcpy and arch memset

Message ID 1424430379-12599-2-git-send-email-p.marczak@samsung.com
State Changes Requested
Headers show

Commit Message

Przemyslaw Marczak Feb. 20, 2015, 11:06 a.m. UTC 
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>
Reviewed-by: Simon Glass <sjg@chromium.org>
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>

---
Changes V3
- none
---
 include/configs/exynos-common.h | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/include/configs/exynos-common.h b/include/configs/exynos-common.h
index 59676ae..87f8db0 100644
--- a/include/configs/exynos-common.h
+++ b/include/configs/exynos-common.h
@@ -24,6 +24,9 @@ 
 #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