On Wed, Mar 04, 2015 at 02:01:24PM +0100, Przemyslaw Marczak wrote:
This commit introduces new config: CONFIG_SYS_MALLOC_CLEAR_ON_INIT.
This config is an expert option and is enabled by default.
The all amount of memory reserved for the malloc, is by default set to zero in mem_malloc_init(). When the malloc reserved memory exceeds few MiB, then the boot process can slow down.
So disabling this config, is an expert option to reduce the boot time, and can be disabled by Kconfig.
Note: After disable this option, only calloc() will return the pointer to the zeroed memory area. Previously, without this option, the memory pointed to untouched malloc memory region, was filled with zeros. So it means, that code with malloc() calls should be reexamined.
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com Reviewed-by: Simon Glass sjg@chromium.org
Applied to u-boot/master, thanks!