lenovo/t420: Add new port

This is based on t420s. Tested on a T420 without discrete GPU.
There is no support for nvidia gpu and optimus.

Signed-off-by: Nicolas Reinecke <nr@das-labor.org>
Tested-by: Iru Cai <mytbk920423@gmail.com>
Change-Id: Ie9405966e56180ac1c43a3c5b83181ee500177c8
Reviewed-on: https://review.coreboot.org/11765
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/mainboard/lenovo/t420/mainboard.c b/src/mainboard/lenovo/t420/mainboard.c
new file mode 100644
index 000000000000..e2e02d46d522
--- /dev/null
+++ b/src/mainboard/lenovo/t420/mainboard.c
@@ -0,0 +1,46 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2011-2012 Google Inc.
+ * Copyright (C) 2014 Vladimir Serbinenko
+ *
+ * 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; version 2 of the License.
+ *
+ * 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 <southbridge/intel/bd82x6x/pch.h>
+#include <ec/lenovo/h8/h8.h>
+
+static void mainboard_init(device_t dev)
+{
+	/* init spi */
+	RCBA32(0x38c8) = 0x00002005;
+	RCBA32(0x38c4) = 0x00802005;
+	RCBA32(0x38c0) = 0x00000007;
+}
+
+static void mainboard_enable(device_t dev)
+{
+	dev->ops->init = mainboard_init;
+
+	install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS,
+					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,
+};