1 files changed, 29 insertions, 0 deletions
diff --git a/board/google/common/early_init.S b/board/google/common/early_init.S
new file mode 100644
index 0000000000..7017185d06
--- /dev/null
+++ b/board/google/common/early_init.S
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2014 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+.globl early_board_init
+early_board_init:
+	/* 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