[U-Boot] [RFC PATCH 2/5] rockchip: boot0: align to 0x20 for armv7 '_start'

[Kever Yang]

The '_start' is using as vector table base address, and will write
to VBAR register, need to align to 0x20 for armv7.

Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
---

 arch/arm/include/asm/arch-rockchip/boot0.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/arch-rockchip/boot0.h b/arch/arm/include/asm/arch-rockchip/boot0.h
index 7346876..88f0ff6 100644
--- a/arch/arm/include/asm/arch-rockchip/boot0.h
+++ b/arch/arm/include/asm/arch-rockchip/boot0.h
@@ -13,10 +13,17 @@
  */
 
 #ifdef CONFIG_SPL_BUILD
-	.space 0x4         /* space for the 'RK33' */
+	.space 0x4         /* space for Rockchip SoC tag like 'RK33' */
 #endif
 	b reset
 
+/* For armv7, the addr '_start' will used as vector start address
+ * and write to VBAR register, which need to aligned to 0x20.
+ */
+#ifdef CONFIG_CPU_V7
+	.align(5)
+#endif
+
 #if defined(CONFIG_ROCKCHIP_RK3399) && defined(CONFIG_SPL_BUILD)
 	.space CONFIG_ROCKCHIP_SPL_RESERVE_IRAM	/* space for the ATF data */
 #endif
-- 
1.9.1