diff options
Diffstat (limited to 'board/google/common/early_init.S')
| -rw-r--r-- | board/google/common/early_init.S | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/board/google/common/early_init.S b/board/google/common/early_init.S index cf70ae4..7017185 100644 --- a/board/google/common/early_init.S +++ b/board/google/common/early_init.S @@ -6,5 +6,24 @@ .globl early_board_init early_board_init: - /* No 32-bit board specific initialisation */ + /* Enable post codes to EC */ +#ifdef CONFIG_EARLY_POST_CROS_EC + mov $0x1b, %ecx + rdmsr + and $0x100, %eax + test %eax, %eax + je 1f + + mov $0x8000f8f0, %eax + mov $0xcf8, %dx + out %eax, (%dx) + mov $0xfed1c001, %eax + mov $0xcfc, %dx + out %eax, (%dx) + mov $0xfed1f410, %esp + mov (%esp), %eax + and $0xfffffffb, %eax + mov %eax, (%esp) +1: +#endif jmp early_board_init_ret |