mainboard: Add Lenovo ThinkPad T440p

The code is based on autoport.

This port is tested on a T440p without a dGPU and can boot Arch Linux
from SATA disk with SeaBIOS payload. The tested components and issues
are in the documentation.

Change-Id: I56a6b94197789a83731d8b349b8ba6814bf57ca2
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34359
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/mainboard/lenovo/t440p/mainboard.c b/src/mainboard/lenovo/t440p/mainboard.c
new file mode 100644
index 0000000000..dcfd5038fd
--- /dev/null
+++ b/src/mainboard/lenovo/t440p/mainboard.c
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 Iru Cai <mytbk920423@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <device/device.h>
+#include <drivers/intel/gma/int15.h>
+#include <ec/lenovo/h8/h8.h>
+
+static void mainboard_enable(struct device *dev)
+{
+	install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_EDP,
+					GMA_INT15_PANEL_FIT_DEFAULT,
+					GMA_INT15_BOOT_DISPLAY_DEFAULT, 0);
+}
+
+void h8_mainboard_init_dock(void)
+{
+}
+
+struct chip_operations mainboard_ops = {
+	.enable_dev = mainboard_enable,
+};