From: David Feng Date: Mon, 2 Mar 2015 07:29:34 +0000 (+0800) Subject: Armv8: Initializing CNTVOFF_EL2 X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=148822d5464b99f4996d6aa8891013b7929c50dc;p=u-boot.git Armv8: Initializing CNTVOFF_EL2 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 --- diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h index 3cf3307b37..9bb0efa5ff 100644 --- a/arch/arm/include/asm/macro.h +++ b/arch/arm/include/asm/macro.h @@ -143,6 +143,9 @@ 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