lenovo/t420s: Add new port.

This is based on x220 and t520. Tested on i7 model with usb3.
There is no support for nvidia gpu and optimus.

Change-Id: I6ca9436ccec3024095d02078e5e450147841e463
Signed-off-by: Nicolas Reinecke <nr@das-labor.org>
Reviewed-on: http://review.coreboot.org/7974
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-by: Peter Stuge <peter@stuge.se>

1 files changed, 73 insertions, 0 deletions

diff --git a/src/mainboard/lenovo/t420s/romstage.c b/src/mainboard/lenovo/t420s/romstage.c
new file mode 100644
index 0000000000..61951ae403
--- /dev/null
+++ b/src/mainboard/lenovo/t420s/romstage.c
@@ -0,0 +1,73 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2010 coresystems GmbH
+ * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
+ * 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.
+ *
+ * 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
+ */
+
+#include <arch/byteorder.h>
+#include <arch/io.h>
+#include <device/pci_def.h>
+#include <console/console.h>
+#include <northbridge/intel/sandybridge/raminit_native.h>
+#include <southbridge/intel/bd82x6x/pch.h>
+
+void pch_enable_lpc(void)
+{
+	/* EC Decode Range Port60/64, Port62/66 */
+	/* Enable EC, PS/2 Keyboard/Mouse */
+	pci_write_config16(PCH_LPC_DEV, LPC_EN,
+			   CNF2_LPC_EN | CNF1_LPC_EN | MC_LPC_EN | KBC_LPC_EN |
+			   COMA_LPC_EN);
+
+	pci_write_config32(PCH_LPC_DEV, LPC_GEN1_DEC, 0x7c1601);
+	pci_write_config32(PCH_LPC_DEV, LPC_GEN2_DEC, 0xc15e1);
+	pci_write_config32(PCH_LPC_DEV, LPC_GEN4_DEC, 0x0c06a1);
+
+	pci_write_config16(PCH_LPC_DEV, LPC_IO_DEC, 0x10);
+
+	pci_write_config32(PCH_LPC_DEV, 0xac, 0x80010000);
+}
+
+void rcba_config(void)
+{
+	/* Disable unused devices (board specific) */
+	RCBA32(FD) = 0x1eb51fe3;
+	RCBA32(BUC) = 0;
+}
+
+const struct southbridge_usb_port mainboard_usb_ports[] = {
+	{ 0, 1, -1 }, /* P0 empty */
+	{ 1, 1,  1 }, /* P1 system port 2 (To system port) (EHCI debug), OC 1 */
+	{ 1, 1, -1 }, /* P2: HALF MINICARD (WLAN) no oc */
+	{ 1, 0, -1 }, /* P3: WWAN, no OC */
+	{ 1, 1, -1 }, /* P4: smartcard, no OC */
+	{ 1, 1, -1 }, /* P5: ExpressCard, no OC */
+	{ 0, 0, -1 }, /* P6: empty */
+	{ 0, 0, -1 }, /* P7: empty */
+	{ 0, 1, -1 }, /* P8: empty (touch panel) */
+	{ 1, 0,  5 }, /* P9: system port 1 (To USBAO) (EHCI debug), OC 5 */
+	{ 1, 0, -1 }, /* P10: fingerprint reader, no OC */
+	{ 1, 1, -1 }, /* P11: bluetooth, no OC. */
+	{ 1, 1, -1 }, /* P12: docking, no OC */
+	{ 1, 1, -1 }, /* P13: camera (LCD), no OC */
+};
+
+void mainboard_get_spd(spd_raw_data *spd) {
+	read_spd(&spd[0], 0x50);
+	read_spd(&spd[2], 0x51);
+}