ARM: tegra: Add Toradex Iris carrier board DT with T20 512MB COM

This adds the device tree for the Toradex Iris carrier board used
together with a Colibri T20 512MB COM.

The Iris has the following features, in brackets the current status:
- DVI and VGA output through DVI-I connector (DVI-D enabled and tested)
- LVDS output
- 1 USB host port (enabled and tested)
- 1 USB OTG port (enabled)
- 100 MBit Ethernet (enabled and tested)
- 5 UART ports  (2 on 10way headers enabled and tested)
- 1 MicroSD Slot (enabled and tested)
- Audio connectors (enabled, only HP out and Line-in tested)
- i2c RTC
- GPIO connector (enabled, only sparsely tested)
- external i2c bus
- 4 PWM out
- analog in

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

3 files changed, 91 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/tegra.txt b/Documentation/devicetree/bindings/arm/tegra.txt
index ccd4ef4b10c1..ed9c85334436 100644
--- a/Documentation/devicetree/bindings/arm/tegra.txt
+++ b/Documentation/devicetree/bindings/arm/tegra.txt
@@ -31,3 +31,4 @@ board-specific compatible values:
   nvidia,ventana
   nvidia,whistler
   toradex,colibri_t20-512
+  toradex,iris
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 6854c1bff199..a919e80876fb 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -134,6 +134,7 @@ dtb-$(CONFIG_ARCH_SPEAR6XX)+= spear600-evb.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun4i-a10-cubieboard.dtb \
         sun5i-a13-olinuxino.dtb
 dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \
+        tegra20-iris-512.dtb \
         tegra20-medcom-wide.dtb \
         tegra20-paz00.dtb \
         tegra20-plutux.dtb \
diff --git a/arch/arm/boot/dts/tegra20-iris-512.dts b/arch/arm/boot/dts/tegra20-iris-512.dts
new file mode 100644
index 000000000000..52f1103907d7
--- /dev/null
+++ b/arch/arm/boot/dts/tegra20-iris-512.dts
@@ -0,0 +1,89 @@
+/dts-v1/;
+
+/include/ "tegra20-colibri-512.dtsi"
+
+/ {
+        model = "Toradex Colibri T20 512MB on Iris";
+        compatible = "toradex,iris", "toradex,colibri_t20-512", "nvidia,tegra20";
+
+        host1x {
+                hdmi {
+                        status = "okay";
+                };
+        };
+
+        pinmux {
+                state_default: pinmux {
+                        hdint {
+                                nvidia,tristate = <0>;
+                        };
+
+                        i2cddc {
+                                nvidia,tristate = <0>;
+                        };
+
+                        sdio4 {
+                                nvidia,tristate = <0>;
+                        };
+
+                        uarta {
+                                nvidia,tristate = <0>;
+                        };
+
+                        uartd {
+                                nvidia,tristate = <0>;
+                        };
+                };
+        };
+
+        usb@c5000000 {
+                status = "okay";
+                dr_mode = "otg";
+        };
+
+        usb@c5008000 {
+                status = "okay";
+        };
+
+        serial@70006000 {
+                status = "okay";
+        };
+
+        serial@70006300 {
+                status = "okay";
+        };
+
+        i2c_ddc: i2c@7000c400 {
+                status = "okay";
+        };
+
+        sdhci@c8000600 {
+                status = "okay";
+                bus-width = <4>;
+                vmmc-supply = <&vcc_sd_reg>;
+                vqmmc-supply = <&vcc_sd_reg>;
+        };
+
+        regulators {
+                regulator@0 {
+                        compatible = "regulator-fixed";
+                        reg = <0>;
+                        regulator-name = "usb_host_vbus";
+                        regulator-min-microvolt = <5000000>;
+                        regulator-max-microvolt = <5000000>;
+                        regulator-boot-on;
+                        regulator-always-on;
+                        gpio = <&gpio 178 0>;
+                };
+
+                vcc_sd_reg: regulator@1 {
+                        compatible = "regulator-fixed";
+                        reg = <1>;
+                        regulator-name = "vcc_sd";
+                        regulator-min-microvolt = <3300000>;
+                        regulator-max-microvolt = <3300000>;
+                        regulator-boot-on;
+                        regulator-always-on;
+                };
+        };
+};