mainboard/siemens/mc_tcu3: Add new mainboard.

This mainboard is based on Intel's Bayleybay
board which uses Bay Trail CPU with Intel FSP.
It has one USB3.0 interface, 4 USB2.0 interfaces,
up to two Ethernet ports and a LVDS connection
for LCD panels. The board is equipped with 512 MB
of DDR3 in a memory down configuration.

This board boots into Ubuntu/Lubuntu 14.10 using SeaBIOS,
but other OSes should work as well (but are not tested).
It has a version.hex file which is needed for
our OS and has no hardware functionality.

Change-Id: I94401bbd1d61ec69703de38ae1bc97969c5d979e
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: http://review.coreboot.org/8430
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 94 insertions, 0 deletions

diff --git a/src/mainboard/siemens/mc_tcu3/lcd_panel.c b/src/mainboard/siemens/mc_tcu3/lcd_panel.c
new file mode 100644
index 0000000000..1dc429ec04
--- /dev/null
+++ b/src/mainboard/siemens/mc_tcu3/lcd_panel.c
@@ -0,0 +1,94 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Siemens AG
+ *
+ * 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 <cbfs.h>
+#include <console/console.h>
+#include <string.h>
+#include "modhwinfo.h"
+#include "baytrail/gpio.h"
+#include "lcd_panel.h"
+#include "ptn3460.h"
+
+/** \brief Reads GPIOs used for LCD panel encoding and returns the 4 bit value
+ * @param  no parameters
+ * @return LCD panel type encoded in 4 bits
+ */
+u8 get_lcd_panel_type(void)
+{
+	u8 lcd_type_gpio;
+
+	lcd_type_gpio =  ((read_ssus_gpio(LCD_TYPE_GPIO_BIT3) << 3) |
+			  (read_ssus_gpio(LCD_TYPE_GPIO_BIT2) << 2) |
+			  (read_ssus_gpio(LCD_TYPE_GPIO_BIT1) << 1) |
+			  (read_ssus_gpio(LCD_TYPE_GPIO_BIT0)));
+	/* There is an inverter in this signals so we need to invert them as well */
+	return ((~lcd_type_gpio) & 0x0f);
+}
+
+/** \brief Setup LCD panel
+ * @param  no parameters
+ * @return 0 on success otherwise error value
+ */
+int setup_lcd_panel(void)
+{
+	u8	lcd_type;
+	int status;
+	struct edidinfo *eib = NULL;
+	struct shortinfo *sib = NULL;
+	char blockname[33];
+
+	lcd_type = get_lcd_panel_type();
+	printk(BIOS_INFO, "LCD: Found panel type %d\n", lcd_type);
+	switch (lcd_type) {
+	case LCD_PANEL_TYPE_10_INCH:
+		strcpy(blockname, "hwinfo10.hex");
+		break;
+	case LCD_PANEL_TYPE_12_INCH:
+		strcpy(blockname, "hwinfo12.hex");
+		break;
+	case LCD_PANEL_TYPE_15_INCH:
+		strcpy(blockname, "hwinfo15.hex");
+		break;
+	case LCD_PANEL_TYPE_19_INCH:
+		strcpy(blockname, "hwinfo19.hex");
+		break;
+	case LCD_PANEL_TYPE_EDID:
+		strcpy(blockname, "hwinfo.hex");
+		break;
+	default:
+		printk(BIOS_ERR, "LCD: No supported panel found.\n");
+		status = 1;
+		break;
+	}
+
+	/* Now that we have the panel type, get the matching block and setup */
+	/* the DP2LVDS converter accordingly */
+	eib = get_edidinfo(blockname);
+	sib = get_shortinfo(blockname);
+
+	if ((!eib) || (!sib)) {
+		printk(BIOS_ERR, "LCD: Info block named \"%s\" not found!\n", blockname);
+		status = 1;
+	} else {
+		printk(BIOS_INFO, "LCD: Found SIB at 0x%x, EIB at 0x%x\n",
+				  (int)sib, (int)eib);
+		status = ptn3460_init(lcd_type, eib, sib);
+		printk(BIOS_INFO, "LCD: Setup PTN with status 0x%x\n", status);
+	}
+	return status;
+}