[PATCH 3/3] ARM: tegra: make sure the pointer on 4 byte align when THUMB2_KERNEL enabled

[Joseph Lo]

When building kernel with CONFIG_THUMB2_KERNEL, the data pointer in the
assembly may not on the 4 byte alignment. Then causing a data abort when
accessing the pointer. This patch add a ".align" flag in the head of the
pointer. And always using 32-bit ADR Thumb instruction to make sure it
won't build failure.

Signed-off-by: Joseph Lo <josephl at nvidia.com>
---
 arch/arm/mach-tegra/reset-handler.S | 1 +
 arch/arm/mach-tegra/sleep.h         | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index e6de88a..519a8c5 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S
@@ -83,6 +83,7 @@ ENDPROC(tegra_resume)
 
 #ifdef CONFIG_CACHE_L2X0
 	.globl	l2x0_saved_regs_addr
+	.align
 l2x0_saved_regs_addr:
 	.long	0
 #endif
diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h
index 970ebd5..73a49b7 100644
--- a/arch/arm/mach-tegra/sleep.h
+++ b/arch/arm/mach-tegra/sleep.h
@@ -92,7 +92,8 @@
 
 #ifdef CONFIG_CACHE_L2X0
 .macro l2_cache_resume, tmp1, tmp2, tmp3, phys_l2x0_saved_regs
-	adr	\tmp1, \phys_l2x0_saved_regs
+ ARM(	adr	\tmp1, \phys_l2x0_saved_regs )
+ THUMB(	adr.w	\tmp1, \phys_l2x0_saved_regs )
 	ldr	\tmp1, [\tmp1]
 	ldr	\tmp2, [\tmp1, #L2X0_R_PHY_BASE]
 	ldr	\tmp3, [\tmp2, #L2X0_CTRL]
-- 
1.8.2