ARM: shmobile: Force ARM mode to compile reset vector for secondary CPUs

Instructions start from boot vector must be ARM mode.
This patch specify ARM mode explicitly and use 'bx' instruction to be
able to change to Thumb mode.

Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/headsmp.S b/arch/arm/mach-shmobile/headsmp.S
index 559d1ce5f57ee0a47ffbea3d1332b41aca0fc03d..afed58e52ae68a3cb4df1cc7a9d9af3b034fb38c 100644 (file)
--- a/arch/arm/mach-shmobile/headsmp.S
+++ b/arch/arm/mach-shmobile/headsmp.S
@@ -26,10 +26,13 @@ ENDPROC(shmobile_invalidate_start)
  * This will be mapped at address 0 by SBAR register.
  * We need _long_ jump to the physical address.
  */
+       .arm
        .align  12
 ENTRY(shmobile_boot_vector)
        ldr     r0, 2f
-       ldr     pc, 1f
+       ldr     r1, 1f
+       bx      r1
+
 ENDPROC(shmobile_boot_vector)
 
        .globl  shmobile_boot_fn