From fa5d0f835b1f3bb8907e616913cbf7b91d09ef26 Mon Sep 17 00:00:00 2001
From: Arthur Heymans <arthur@aheymans.xyz>
Date: Tue, 12 Nov 2019 19:11:50 +0100
Subject: nb/intel/sandybridge: Set up console in bootblock

Change-Id: Ia041b63201b2a4a2fe6ab11e3497c460f88061d1
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36784
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
---
 src/mainboard/lenovo/t530/early_init.c | 62 ++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 src/mainboard/lenovo/t530/early_init.c

(limited to 'src/mainboard/lenovo/t530/early_init.c')

diff --git a/src/mainboard/lenovo/t530/early_init.c b/src/mainboard/lenovo/t530/early_init.c
new file mode 100644
index 0000000000..34c61e4e49
--- /dev/null
+++ b/src/mainboard/lenovo/t530/early_init.c
@@ -0,0 +1,62 @@
+/*
+ * 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.
+ */
+
+#include <stdint.h>
+#include <device/pci_ops.h>
+#include <device/pci_def.h>
+#include <northbridge/intel/sandybridge/raminit_native.h>
+#include <southbridge/intel/bd82x6x/pch.h>
+#include <northbridge/intel/sandybridge/sandybridge.h>
+#include <drivers/lenovo/hybrid_graphics/hybrid_graphics.h>
+#include <device/device.h>
+#include <device/pci.h>
+
+static void hybrid_graphics_init(void)
+{
+	bool peg, igd;
+	u32 reg32;
+
+	early_hybrid_graphics(&igd, &peg);
+
+	if (peg && igd)
+		return;
+
+	/* Hide disabled devices */
+	reg32 = pci_read_config32(PCI_DEV(0, 0, 0), DEVEN);
+	reg32 &= ~(DEVEN_PEG10 | DEVEN_IGD);
+
+	if (peg)
+		reg32 |= DEVEN_PEG10;
+
+	if (igd)
+		reg32 |= DEVEN_IGD;
+	else
+		/* Disable IGD VGA decode, no GTT or GFX stolen */
+		pci_write_config16(PCI_DEV(0, 0, 0), GGC, 2);
+
+	pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, reg32);
+}
+
+void mainboard_pch_lpc_setup(void)
+{
+	pci_write_config32(PCH_LPC_DEV, ETR3, 0x10000);
+}
+
+void mainboard_early_init(int s3resume)
+{
+	hybrid_graphics_init();
+}
-- 
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