lenovo/x201: Add support for Lenovo X201 (Calpella-based laptop)

Was extensively tested on my X201.
More info on the wiki

Change-Id: I503d77749780422e446b48224ca98a1f22a2c180
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4514
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/src/mainboard/lenovo/x201/dock.c b/src/mainboard/lenovo/x201/dock.c
new file mode 100644
index 0000000000..fbcf99e76a
--- /dev/null
+++ b/src/mainboard/lenovo/x201/dock.c
@@ -0,0 +1,63 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org>
+ * Copyright (C) 2013 Vladimir Serbinenko <phcoder@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; 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#define __SIMPLE_DEVICE__
+#include <console/console.h>
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <delay.h>
+#include "dock.h"
+#include "southbridge/intel/ibexpeak/pch.h"
+#include "ec/lenovo/h8/h8.h"
+#include <ec/acpi/ec.h>
+
+void h8_mainboard_init_dock (void)
+{
+	if (dock_present()) {
+		printk(BIOS_DEBUG, "dock is connected\n");
+		dock_connect();
+	} else
+		printk(BIOS_DEBUG, "dock is not connected\n");
+}
+
+void dock_connect(void)
+{
+	ec_set_bit(0x02, 0);
+	ec_set_bit(0x1a, 0);
+	ec_set_bit(0xfe, 4);
+}
+
+void dock_disconnect(void)
+{
+	ec_clr_bit(0x02, 0);
+	ec_clr_bit(0x1a, 0);
+	ec_clr_bit(0xfe, 4);
+}
+
+int dock_present(void)
+{
+	u16 gpiobase = pci_read_config16(PCH_LPC_DEV, GPIO_BASE) & 0xfffc;
+	u8 st = inb(gpiobase + 0x0c);
+
+	return !((st >> 3) & 1);
+}