arm: bugfix: save_boot_params_default accesses uninitalized stack when -O0
save_boot_params_default() in cpu.c accesses uninitialized stack area
when it compiled with -O0 (not optimized).
This patch removes save_boot_params_default() and put the equivalent in start.S
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Acked-by: Tom Rini <trini@ti.com>
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
index b06bafd..32658eb 100644
--- a/arch/arm/cpu/armv7/start.S
+++ b/arch/arm/cpu/armv7/start.S
@@ -305,6 +305,20 @@
/*************************************************************************
*
+ * void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3)
+ * __attribute__((weak));
+ *
+ * Stack pointer is not yet initialized at this moment
+ * Don't save anything to stack even if compiled with -O0
+ *
+ *************************************************************************/
+ENTRY(save_boot_params)
+ bx lr @ back to my caller
+ENDPROC(save_boot_params)
+ .weak save_boot_params
+
+/*************************************************************************
+ *
* cpu_init_cp15
*
* Setup CP15 registers (cache, MMU, TLBs). The I-cache is turned on unless