From c05710f196e2ff20881a67adace949efc29d9f1f Mon Sep 17 00:00:00 2001
From: Ben Zhang <benzh@chromium.org>
Date: Mon, 15 Dec 2014 17:38:11 -0800
Subject: samus: Add ACPI binding for rt5677 codec SPI
We'll need to find a real ACPI device ID for
the rt5677 SPI driver. "RT5677AA" is temporary.
BUG=chrome-os-partner:33495
BRANCH=samus
TEST=load firmware via SPI; hotword detection works
Change-Id: I6dc55c4641c27a38570debe841a6afeb048eb868
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: f0d7013b62c78deb82db1a431f079c79eded5270
Original-Change-Id: Ifb4a1b12776669e21c0b7c4679246717d72981ad
Original-Signed-off-by: Ben Zhang <benzh@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/235902
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/9486
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
---
src/mainboard/google/samus/acpi/mainboard.asl | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
(limited to 'src')
diff --git a/src/mainboard/google/samus/acpi/mainboard.asl b/src/mainboard/google/samus/acpi/mainboard.asl
index 274e8a8fca..2edc5a590a 100644
--- a/src/mainboard/google/samus/acpi/mainboard.asl
+++ b/src/mainboard/google/samus/acpi/mainboard.asl
@@ -345,3 +345,29 @@ Scope (\_SB.PCI0.I2C1)
}
}
}
+
+Scope (\_SB.PCI0.SPI0)
+{
+ Device (CODC)
+ {
+ // TODO: Need official HID.
+ Name (_HID, "RT5677AA")
+ Name (_UID, 1)
+ Name (_CRS, ResourceTemplate ()
+ {
+ SpiSerialBus (
+ 0, // DeviceSelection (CS0?)
+ PolarityLow, // DeviceSelectionPolarity
+ FourWireMode, // WireMode
+ 8, // DataBitLength
+ ControllerInitiated, // SlaveMode
+ 1000000, // ConnectionSpeed (1MHz)
+ ClockPolarityLow, // ClockPolarity
+ ClockPhaseFirst, // ClockPhase
+ "\\_SB.PCI0.SPI0", // ResourceSource
+ 0, // ResourceSourceIndex
+ ResourceConsumer, // ResourceUsage
+ )
+ })
+ }
+}
--
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