siemens/mc_apl4: Enable LVDS Display on mc_apl4

Enable PTN3460 chip initialization to get LVDS attached LCD working on
mc_apl4.

Change-Id: I3ccf5398f16831db321eba846d6b041daadf31dd
Signed-off-by: Uwe Poeche <uwe.poeche@siemens.com>
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/30204
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/mainboard.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/mainboard.c
new file mode 100644
index 0000000000..65e78bb378
--- /dev/null
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/mainboard.c
@@ -0,0 +1,35 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2018 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.
+ */
+
+#include <bootstate.h>
+#include <console/console.h>
+#include <hwilib.h>
+#include <baseboard/variants.h>
+#include <variant/ptn3460.h>
+
+void variant_mainboard_final(void)
+{
+	int status;
+
+	/*
+	 * Set up the DP2LVDS converter.
+	 * ptn3460_init() may only be executed after i2c bus init.
+	 */
+	status = ptn3460_init("hwinfo.hex");
+	if (status)
+		printk(BIOS_ERR, "LCD: Set up PTN with status 0x%x\n", status);
+	else
+		printk(BIOS_INFO, "LCD: Set up PTN was successful.\n");
+}