google/cyan: convert to variant configuration

Setup cyan to be the baseboard for other Google Braswell
boards, to be added in subsequent commits:

- Keep code common to all Google Braswell boards in the baseboard,
and separate out the board-specific bits into the new cyan variant.

- Define the I2C ACPI devices such that they can be easily reused for
other variants.

- Switch the trackpad/touchscreen interrupts from edge to level,
for better performance/compatibility, as was done with all previous
Google boards.

- Add code to the baseboard to allow optional variant-specific
parameters to be used for both memory and silicon init.

- Remove superfluous includes, replace some hardcoded values with
variables, and correct typos/formatting errors.

Change-Id: Iabbbad16efa9cfa79338f4e94d0771779900d8d9
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21126
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 117 insertions, 0 deletions

diff --git a/src/mainboard/google/cyan/acpi/codec_maxim.asl b/src/mainboard/google/cyan/acpi/codec_maxim.asl
new file mode 100644
index 0000000000..9abc91e3fa
--- /dev/null
+++ b/src/mainboard/google/cyan/acpi/codec_maxim.asl
@@ -0,0 +1,117 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Google Inc.
+ * Copyright (C) 2015 Intel Corp.
+ *
+ * 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 (\_SB.PCI0.I2C2)
+{
+	/* Maxim Audio Codec */
+	Device (MAXM)   /* Audio Codec driver I2C */
+	{
+		Name (_ADR, 0)
+		Name (_HID, AUDIO_CODEC_HID)
+		Name (_CID, AUDIO_CODEC_CID)
+		Name (_DDN, AUDIO_CODEC_DDN)
+		Name (_UID, 1)
+
+		/* Add DT style bindings with _DSD */
+		Name (_DSD, Package () {
+			ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+			Package () {
+				/* set maxim micbias to 2.8v */
+				Package () { "maxim,micbias", 3 },
+			}
+		})
+
+		Method(_CRS, 0x0, NotSerialized)
+		{
+			Name(SBUF,ResourceTemplate ()
+			{
+				I2CSerialBus(
+					AUDIO_CODEC_I2C_ADDR,	/* SlaveAddress: bus address */
+					ControllerInitiated,	/* SlaveMode: default to ControllerInitiated */
+					400000,			/* ConnectionSpeed: in Hz */
+					AddressingMode7Bit,	/* Addressing Mode: default to 7 bit */
+					"\\_SB.PCI0.I2C2",	/* ResourceSource: I2C bus controller name */
+				)
+
+				GpioInt (Edge, ActiveLow, ExclusiveAndWake, PullNone,,
+					"\\_SB.GPSE") { BOARD_JACK_MAXIM_GPIO_INDEX }
+			} )
+			Return (SBUF)
+		}
+
+		Method (_STA)
+		{
+			If (LEqual (\S2EN, 1)) {
+				Return (0xF)
+			} Else {
+				Return (0x0)
+			}
+		}
+	}
+	Device (TISW)   /* TI Switch driver I2C */
+	{
+		Name (_ADR, 0)
+		Name (_HID, TI_SWITCH_HID)
+		Name (_CID, TI_SWITCH_CID)
+		Name (_DDN, TI_SWITCH_DDN)
+		Name (_UID, 1)
+
+		/* Add DT style bindings with _DSD */
+		Name (_DSD, Package () {
+			ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+			Package () {
+				/* set ti micbias to 2.8v */
+				Package () { "ti,micbias", 7 },
+			}
+		})
+
+		Method(_CRS, 0x0, NotSerialized)
+		{
+			Name(SBUF,ResourceTemplate ()
+			{
+				I2CSerialBus(
+					TI_SWITCH_I2C_ADDR,	/* SlaveAddress: bus address */
+					ControllerInitiated,	/* SlaveMode: default to ControllerInitiated */
+					400000,			/* ConnectionSpeed: in Hz */
+					AddressingMode7Bit,	/* Addressing Mode: default to 7 bit */
+					"\\_SB.PCI0.I2C2",	/* ResourceSource: I2C bus controller name */
+				)
+
+				GpioInt (Edge, ActiveLow, ExclusiveAndWake, PullNone,,
+					"\\_SB.GPSW") { BOARD_JACK_TI_GPIO_INDEX }
+
+			} )
+			Return (SBUF)
+		}
+
+		Method (_STA)
+		{
+			Return (0xF)
+		}
+	}
+}
+
+
+Scope (\_SB.PCI0.LPEA)
+{
+	Name (GBUF, ResourceTemplate ()
+	{
+		/* Jack Detect (index 0) */
+		GpioInt (Edge, ActiveLow, ExclusiveAndWake, PullNone,,
+			"\\_SB.GPSE") { BOARD_JACK_MAXIM_GPIO_INDEX }
+	})
+}