arm: v7: Update VBAR only if available

Not all ARM V7 based cpus has VBAR for remapping
vector base address. So, update VBAR only if it available.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
index f5df597..8c19a83 100644 (file)
--- a/arch/arm/cpu/armv7/start.S
+++ b/arch/arm/cpu/armv7/start.S
@@ -72,10 +72,12 @@ switch_to_hypervisor_ret:
        bic     r0, #CR_V               @ V = 0
        mcr     p15, 0, r0, c1, c0, 0   @ Write CP15 SCTLR Register
 
+#ifdef CONFIG_HAS_VBAR
        /* Set vector address in CP15 VBAR register */
        ldr     r0, =_start
        mcr     p15, 0, r0, c12, c0, 0  @Set VBAR
 #endif
+#endif
 
        /* the mask ROM code should have PLL and others stable */
 #ifndef CONFIG_SKIP_LOWLEVEL_INIT