This contains just enough to bring up the serial UART.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
        chromebook_link.dtb \
        chromebox_panther.dtb \
        crownbay.dtb \
+       efi.dtb \
        galileo.dtb \
        minnowmax.dtb \
        qemu-x86_i440fx.dtb \
 
--- /dev/null
+/*
+ * Copyright (c) 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+       model = "EFI";
+       compatible = "efi,app";
+
+       chosen {
+               stdout-path = &serial;
+       };
+
+       serial: serial {
+               compatible = "efi,uart";
+       };
+};