From: Simon Glass <sjg@chromium.org>
Date: Fri, 5 Jun 2015 20:39:34 +0000 (-0600)
Subject: dm: tegra: cros_ec: Enable Chrome OS EC on Nyan-big
X-Git-Tag: v2015.07-rc3~108
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=b3b9d7ca324429319df1d1f246643d2ae928beb6;p=oweals%2Fu-boot.git

dm: tegra: cros_ec: Enable Chrome OS EC on Nyan-big

Enable the EC and keyboard, using the SPI bus.

The EC driver requires a particular format and a deactivation delay. Also
U-Boot does not support interrupts.

For now, adjust the device tree to comply. At some point we should tidy
this up to support interrupts and make tegra and exynos use the same setup.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
---

diff --git a/arch/arm/dts/tegra124-nyan-big.dts b/arch/arm/dts/tegra124-nyan-big.dts
index 5a39e93c68..8be6adbf07 100644
--- a/arch/arm/dts/tegra124-nyan-big.dts
+++ b/arch/arm/dts/tegra124-nyan-big.dts
@@ -163,12 +163,15 @@
 
 	spi@7000d400 {
 		status = "okay";
+		spi-deactivate-delay = <200>;
+		spi-max-frequency = <3000000>;
 
 		cros_ec: cros-ec@0 {
 			compatible = "google,cros-ec-spi";
 			spi-max-frequency = <3000000>;
 			interrupt-parent = <&gpio>;
 			interrupts = <TEGRA_GPIO(C, 7) IRQ_TYPE_LEVEL_LOW>;
+			ec-interrupt = <&gpio TEGRA_GPIO(C, 7) GPIO_ACTIVE_LOW>;
 			reg = <0>;
 
 			google,cros-ec-spi-msg-delay = <2000>;
diff --git a/configs/nyan-big_defconfig b/configs/nyan-big_defconfig
index 92acab293b..81949e8950 100644
--- a/configs/nyan-big_defconfig
+++ b/configs/nyan-big_defconfig
@@ -6,3 +6,8 @@ CONFIG_DEFAULT_DEVICE_TREE="tegra124-nyan-big"
 CONFIG_CMD_NET=y
 CONFIG_DISPLAY_PORT=y
 CONFIG_VIDEO_TEGRA124=y
+CONFIG_DM_CROS_EC=y
+CONFIG_CROS_EC=y
+CONFIG_CROS_EC_SPI=y
+CONFIG_CROS_EC_KEYB=y
+CONFIG_CMD_CROS_EC=y
diff --git a/include/configs/nyan-big.h b/include/configs/nyan-big.h
index a92112f870..515704f2ed 100644
--- a/include/configs/nyan-big.h
+++ b/include/configs/nyan-big.h
@@ -79,6 +79,8 @@
 #define CONFIG_FIT
 #define CONFIG_OF_LIBFDT
 
+#define CONFIG_KEYBOARD
+
 #include "tegra-common-usb-gadget.h"
 #include "tegra-common-post.h"