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>
diff --git a/README b/README
index f704eb3..31e08fc 100644
--- a/README
+++ b/README
@@ -3752,6 +3752,9 @@
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,
diff --git a/arch/arm/lib/crt0.S b/arch/arm/lib/crt0.S
index 43aa212..29cdad0 100644
--- a/arch/arm/lib/crt0.S
+++ b/arch/arm/lib/crt0.S
@@ -78,7 +78,10 @@
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