pcengines/apu2: add board support

Initial work based on db-ft3b-ls and code released by Eltan. Board
boots with some limitation.

Now the AGESA binary is harcoded and board specific until it's fixed
by the SoC vendor.

memtest86+ from external repo skips looking for SPD on SMBus, which when
performed cause memtest86+ to hang. Still didn't tried whole test suit.

SeaBIOS 1.9.3 have some problems with USB which lead to no booting in
some cases. Full log:
https://gist.github.com/pietrushnic/787cbf63f610ff4f6b4ac13e5c20b872

SeaBIOS from PC Engines repository (https://github.com/pcengines/seabios)
works fine. Those changes are planned for upstream.

Information about obtaining and booting Voyage Linux:
https://github.com/pcengines/apu2-documentation#building-firmware-using-apu2-image-builder

Change-Id: Id23e448e27f4bba47b7e9e7fa7679e2690c6e4bc
Signed-off-by: Piotr Król <piotr.krol@3mdeb.com>
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/14138
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/src/mainboard/pcengines/apu2/acpi/gpe.asl b/src/mainboard/pcengines/apu2/acpi/gpe.asl
new file mode 100644
index 0000000000..cd366dcc5d
--- /dev/null
+++ b/src/mainboard/pcengines/apu2/acpi/gpe.asl
@@ -0,0 +1,67 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Sage Electronic Engineering, LLC
+ *
+ * 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.
+ */
+
+Scope(\_GPE) {	/* Start Scope GPE */
+
+	/*  General event 3  */
+	Method(_L03) {
+		/* DBGO("\\_GPE\\_L00\n") */
+		Notify(\_SB.PWRB, 0x02) /* NOTIFY_DEVICE_WAKE */
+	}
+
+	/*  Legacy PM event  */
+	Method(_L08) {
+		/* DBGO("\\_GPE\\_L08\n") */
+	}
+
+	/*  Temp warning (TWarn) event  */
+	Method(_L09) {
+		/* DBGO("\\_GPE\\_L09\n") */
+		/* Notify (\_TZ.TZ00, 0x80) */
+	}
+
+	/*  USB controller PME#  */
+	Method(_L0B) {
+		/* DBGO("\\_GPE\\_L0B\n") */
+		Notify(\_SB.PCI0.UOH1, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PCI0.UOH2, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PCI0.UOH3, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PCI0.UOH4, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PCI0.UOH5, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PCI0.UOH6, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PCI0.XHC0, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PWRB, 0x02) /* NOTIFY_DEVICE_WAKE */
+	}
+
+	/*  ExtEvent0 SCI event  */
+	Method(_L10) {
+		/* DBGO("\\_GPE\\_L10\n") */
+	}
+
+	/*  ExtEvent1 SCI event  */
+	Method(_L11) {
+		/* DBGO("\\_GPE\\_L11\n") */
+	}
+
+	/*  GPIO0 or GEvent8 event  */
+	Method(_L18) {
+		/* DBGO("\\_GPE\\_L18\n") */
+		Notify(\_SB.PCI0.PBR4, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PCI0.PBR5, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PCI0.PBR6, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PCI0.PBR7, 0x02) /* NOTIFY_DEVICE_WAKE */
+		Notify(\_SB.PWRB, 0x02) /* NOTIFY_DEVICE_WAKE */
+	}
+} 	/* End Scope GPE */