[U-Boot] [RFC 01/10] ARM: crt0.S: clear the global data

Jeroen Hofstee
2014-05-31T20:32:15Z

NOTE: smdk5420 snow smdkv310 apf27 arndale origen vpac270_ond_256 smdk5250
don't have a memset available.
---
arch/arm/lib/crt0.S | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/arch/arm/lib/crt0.S b/arch/arm/lib/crt0.S
index dfc2de9..52b6f74 100644
--- a/arch/arm/lib/crt0.S
+++ b/arch/arm/lib/crt0.S
@@ -70,6 +70,12 @@ ENTRY(_main)
sub sp, sp, #GD_SIZE /* allocate one GD above SP */
bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
mov r9, sp /* GD is above SP */
+
+ mov r0, r9 /* Clear the global data */
+ mov r1, #0
+ mov r2, #GENERATED_GBL_DATA_SIZE
+ bl memset
+
mov r0, #0
bl board_init_f

--
1.8.3.2