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arm: Support pre-relocation malloc() 

Add support for re-relocation malloc() in arm's start-up code.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2014-07-10 22:23:29 -06:00
parent aae2aef9c8
commit 76a1e584e1
2 changed files with 7 additions and 1 deletions
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3
README
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@ -3752,6 +3752,9 @@ Configuration Settings:
Pre-relocation malloc() is only supported on sandbox
at present but is fairly easy to enable for other archs.
Pre-relocation malloc() is only supported on ARM at present
but is fairly easy to enable for other archs.
- CONFIG_SYS_BOOTM_LEN:
Normally compressed uImages are limited to an
uncompressed size of 8 MBytes. If this is not enough,

5
arch/arm/lib/crt0.S
View File

@ -78,7 +78,10 @@ clr_gd:
strlo r0, [r1] /* clear 32-bit GD word */
addlo r1, r1, #4 /* move to next */
blo clr_gd
#if defined(CONFIG_SYS_MALLOC_F_LEN) && !defined(CONFIG_SPL_BUILD)
sub sp, sp, #CONFIG_SYS_MALLOC_F_LEN
str sp, [r9, #GD_MALLOC_BASE]
#endif
/* mov r0, #0 not needed due to above code */
bl board_init_f