arm64: use xzr to zero-out the bss section
authorMasahiro Yamada <[email protected]>
Fri, 27 Jan 2017 07:15:29 +0000 (16:15 +0900)
committerTom Rini <[email protected]>
Wed, 8 Feb 2017 14:17:30 +0000 (09:17 -0500)
commitb913c3f0790a4785b2cf0afa49d4c3e4ffddc2cd
treec2f7f3bfc24254304170029e175062fde3ec2cf5
parent446d4e048ee3b00f7907e15cd02aa404cc714c77
arm64: use xzr to zero-out the bss section

AArch64 has a zero register (xzr).  Use it instead of x2.

Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
arch/arm/lib/crt0_64.S