[U-Boot] [PATCH] Armv8: Initializing CNTVOFF_EL2

[fenghua at phytium.com.cn]

From: David Feng <fenghua at phytium.com.cn>

Linux-arm64 require that CNTVOFF_EL2 should be programmed with
a consistent value on all cpus. Initializing CNTVOFF_EL2 at state
transition instead of start.S could prevent potential different value
on cpus if ATF exist and u-boot runs at only one cpu.

Signed-off-by: David Feng <fenghua at phytium.com.cn>
---
 arch/arm/include/asm/macro.h |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h
index 1c8c425..39df86a 100644
--- a/arch/arm/include/asm/macro.h
+++ b/arch/arm/include/asm/macro.h
@@ -113,6 +113,9 @@ lr	.req	x30
 	mov	\xreg1, #0x33ff
 	msr	cptr_el2, \xreg1	/* Disable coprocessor traps to EL2 */
 
+	/* Initialize Generic Timers */
+	msr	cntvoff_el2, xzr
+
 	/* Initialize SCTLR_EL2
 	 *
 	 * setting RES1 bits (29,28,23,22,18,16,11,5,4) to 1
-- 
1.7.9.5