x86: Fix the mystery of printch() during 64-bit boot

[platform/kernel/u-boot.git] / arch / x86 / cpu / start64.S

diff --git a/arch/x86/cpu/start64.S b/arch/x86/cpu/start64.S
index a473fd1..a78a331 100644 (file)
--- a/arch/x86/cpu/start64.S
+++ b/arch/x86/cpu/start64.S
@@ -20,6 +20,7 @@ _start:
 
        call    board_init_f_init_reserve
 
+       xor     %rdi, %rdi
        call    board_init_f
        call    board_init_f_r