mb/foxconn/g41s-k: Add g41m variant

Was tested with the following:
- 2 DIMM slots
- USB
- Ethernet NIC
- automatic fan control
- Libgfxinit with VGA, DVI (HDMI slot unpopulated)
- PS2 Keyboard
- SATA
- PEG
- S3 resume

What does not work:
- Using the second DIMM slot on a channel
  G41 can only handle 2 ranks per channel and on this mainboard 1 rank
  per DIMM slot. Supporting this would require too much raminit rework
  and is not worth it (at least for me)

Change-Id: I67784038ef929f561b82365f00db70a69c024321
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30242
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

4 files changed, 92 insertions, 0 deletions

diff --git a/src/mainboard/foxconn/g41s-k/variants/g41m/acpi/ich7_pci_irqs.asl b/src/mainboard/foxconn/g41s-k/variants/g41m/acpi/ich7_pci_irqs.asl
new file mode 100644
index 0000000000..f1f3462d49
--- /dev/null
+++ b/src/mainboard/foxconn/g41s-k/variants/g41m/acpi/ich7_pci_irqs.asl
@@ -0,0 +1,46 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Arthur Heymans <arthur@aheymans.xyz>
+ * Copyright (C) 2017 Samuel Holland <samuel@sholland.org>
+ *
+ * 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.
+m *
+ * 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.
+ */
+
+/*
+ * This is board specific information:
+ * IRQ routing for the 0:1e.0 PCI bridge of the ICH7
+ */
+
+If (PICM) {
+	Return (Package() {
+		Package() { 0x0001ffff, 0, 0, 0x12},
+		Package() { 0x0001ffff, 1, 0, 0x13},
+		Package() { 0x0001ffff, 2, 0, 0x10},
+		Package() { 0x0001ffff, 3, 0, 0x11},
+
+		Package() { 0x0002ffff, 0, 0, 0x11},
+		Package() { 0x0002ffff, 1, 0, 0x12},
+		Package() { 0x0002ffff, 2, 0, 0x13},
+		Package() { 0x0002ffff, 3, 0, 0x10},
+	})
+} Else {
+	Return (Package() {
+		Package() { 0x0001ffff, 0, \_SB.PCI0.LPCB.LNKB, 0},
+		Package() { 0x0001ffff, 1, \_SB.PCI0.LPCB.LNKC, 0},
+		Package() { 0x0001ffff, 2, \_SB.PCI0.LPCB.LNKD, 0},
+		Package() { 0x0001ffff, 3, \_SB.PCI0.LPCB.LNKA, 0},
+
+		Package() { 0x0002ffff, 0, \_SB.PCI0.LPCB.LNKC, 0},
+		Package() { 0x0002ffff, 1, \_SB.PCI0.LPCB.LNKD, 0},
+		Package() { 0x0002ffff, 2, \_SB.PCI0.LPCB.LNKA, 0},
+		Package() { 0x0002ffff, 3, \_SB.PCI0.LPCB.LNKB, 0},
+	})
+}
diff --git a/src/mainboard/foxconn/g41s-k/variants/g41m/data.vbt b/src/mainboard/foxconn/g41s-k/variants/g41m/data.vbt
new file mode 100644
index 0000000000..fd02a149f9
--- /dev/null
+++ b/src/mainboard/foxconn/g41s-k/variants/g41m/data.vbt
diff --git a/src/mainboard/foxconn/g41s-k/variants/g41m/gma-mainboard.ads b/src/mainboard/foxconn/g41s-k/variants/g41m/gma-mainboard.ads
new file mode 100644
index 0000000000..0bf1021b0a
--- /dev/null
+++ b/src/mainboard/foxconn/g41s-k/variants/g41m/gma-mainboard.ads
@@ -0,0 +1,29 @@
+--
+-- This file is part of the coreboot project.
+--
+-- 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; either version 2 of the License, or
+-- (at your option) any later version.
+--
+-- 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.
+--
+
+with HW.GFX.GMA;
+with HW.GFX.GMA.Display_Probing;
+
+use HW.GFX.GMA;
+use HW.GFX.GMA.Display_Probing;
+
+private package GMA.Mainboard is
+
+   ports : constant Port_List :=
+     (Analog,
+      HDMI1,
+      HDMI2,
+      others => Disabled);
+
+end GMA.Mainboard;
diff --git a/src/mainboard/foxconn/g41s-k/variants/g41m/overridetree.cb b/src/mainboard/foxconn/g41s-k/variants/g41m/overridetree.cb
new file mode 100644
index 0000000000..45ae89730e
--- /dev/null
+++ b/src/mainboard/foxconn/g41s-k/variants/g41m/overridetree.cb
@@ -0,0 +1,17 @@
+chip northbridge/intel/x4x		# Northbridge
+	device domain 0 on		# PCI domain
+		subsystemid 0x105b 0x0dc0 inherit
+		chip southbridge/intel/i82801gx		# Southbridge
+			device pci 1f.0 on		# ISA bridge
+				device pnp 2e.0 on	# Floppy
+					io 0x60 = 0x3f0
+					irq 0x70 = 6
+					drq 0x74 = 2
+				end
+				device pnp 2e.2 off end	# COM2 (IR)
+				device pnp 2e.a off end	# CIR
+			end
+			device pci 1f.1 on end		# PATA/IDE
+		end
+	end
+end