ARM: arm926ejs: fix lowlevel_init call
The code attempts to preserve the value of LR by storing it in R12/IP
across the lowevel_init() call. However, this register is not saved
by the callee. Use a register that guaranteed to be preserved instead.
Signed-off-by: Mans Rullgard <mans@mansr.com>
diff --git a/arch/arm/cpu/arm926ejs/start.S b/arch/arm/cpu/arm926ejs/start.S
index 959d1ed..a6f0bdb 100644
--- a/arch/arm/cpu/arm926ejs/start.S
+++ b/arch/arm/cpu/arm926ejs/start.S
@@ -105,9 +105,9 @@
/*
* Go setup Memory and board specific bits prior to relocation.
*/
- mov ip, lr /* perserve link reg across call */
+ mov r4, lr /* perserve link reg across call */
bl lowlevel_init /* go setup pll,mux,memory */
- mov lr, ip /* restore link */
+ mov lr, r4 /* restore link */
#endif
mov pc, lr /* back to my caller */
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */