[U-Boot] [PATCH v5 5/7] trats2: defconfig: disable memset at malloc init

Przemyslaw Marczak p.marczak at samsung.com
Tue Feb 24 11:38:29 CET 2015


Reduce the boot time of Trats2 by disabling the memset
at malloc init.

This was tested on Trats2.
A quick test with trace. Boot time from start to main_loop() entry:
- ~464ms - before this change (arch memset enabled for .bss clear)
- ~341ms - after this change

Signed-off-by: Przemyslaw Marczak <p.marczak at samsung.com>
Reviewed-by: Simon Glass <sjg at chromium.org>

---
Changes V3
- none

Changes V4
- trats2_defconfig: remove CONFIG_EXPERT
- trats2_defconfig: disable CONFIG_SYS_MALLOC_INIT_DO_ZEROING

Changes v5:
- update disabled config name to CONFIG_SYS_MALLOC_CLEAR_ON_INIT
---
 configs/trats2_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configs/trats2_defconfig b/configs/trats2_defconfig
index 1b98b73..9359706 100644
--- a/configs/trats2_defconfig
+++ b/configs/trats2_defconfig
@@ -3,3 +3,4 @@ CONFIG_ARCH_EXYNOS=y
 CONFIG_TARGET_TRATS2=y
 CONFIG_OF_CONTROL=y
 CONFIG_DEFAULT_DEVICE_TREE="exynos4412-trats2"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
-- 
1.9.1



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