[PATCH] efikamx: reintroduce Genesi Efika MX Smarttop via device tree

[Matt Sealey <matt@genesi-usa.com>]

This device tree only supports the final retail board ("TO3").

It is currently feature equivalent to the MX51 Babbage device tree. The
following features have been tested and work as well as can be expected:

* Serial port
* SD card support
* I2C bus
* SGTL5000 audio support via the internal speaker
* SDMA support (via audio)
* SPI bus
* NOR flash (at 25MHz bus speed)
* MC13892 PMIC Regulator and Realtime clock functions

Since the board requires some extra work on the PMIC to power off, the system
will instead just halt, however reboot works. Other missing features are due
to a lack of drivers or device tree bindings currently.

Signed-off-by: Matt Sealey <matt@genesi-usa.com>
Signed-off-by: Steev Klimaszewski <steev@genesi-usa.com>
---
 arch/arm/boot/dts/imx51-efikamx.dts |  247 +++++++++++++++++++++++++++++++++++
 arch/arm/mach-imx/Makefile.boot     |    2 +-
 2 files changed, 248 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/imx51-efikamx.dts

diff --git a/arch/arm/boot/dts/imx51-efikamx.dts b/arch/arm/boot/dts/imx51-efikamx.dts
new file mode 100644
index 0000000..dd14f77
--- /dev/null
+++ b/arch/arm/boot/dts/imx51-efikamx.dts
@@ -0,0 +1,247 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ * Copyright 2012 Genesi USA, Inc.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+/include/ "imx51.dtsi"
+
+/ {
+	model = "Genesi Efika MX (Smarttop)";
+	compatible = "genesi,imx51-efikamx", "fsl,imx51";
+
+	memory {
+		reg = <0x90000000 0x20000000>;
+	};
+
+	soc {
+		aips@70000000 {
+			spba@70000000 {
+				esdhc@70004000 {
+					cd-gpios = <&gpio1 0 0>;
+					wp-gpios = <&gpio1 1 0>;
+					status = "okay";
+				};
+
+				ssi2: ssi@70014000 {
+				    fsl,mode = "i2s-slave";
+				    status = "okay";
+				};
+
+				ecspi@70010000 {
+					fsl,spi-num-chipselects = <2>;
+					cs-gpios = <&gpio4 24 0>, <&gpio4 25 0>;
+					status = "okay";
+
+					pmic: mc13892@0 {
+						#address-cells = <1>;
+						#size-cells = <0>;
+						compatible = "fsl,mc13892";
+						spi-max-frequency = <6000000>;
+						reg = <0>;
+						interrupt-parent = <&gpio1>;
+						interrupts = <6 0x4>;
+						fsl,mc13xxx-uses-rtc;
+
+						regulators {
+							sw1_reg: sw1 {
+								regulator-min-microvolt = <600000>;
+								regulator-max-microvolt = <1375000>;
+								regulator-boot-on;
+								regulator-always-on;
+							};
+
+							sw2_reg: sw2 {
+								regulator-min-microvolt = <900000>;
+								regulator-max-microvolt = <1850000>;
+								regulator-boot-on;
+								regulator-always-on;
+							};
+
+							sw3_reg: sw3 {
+								regulator-min-microvolt = <1100000>;
+								regulator-max-microvolt = <1850000>;
+								regulator-boot-on;
+								regulator-always-on;
+							};
+
+							sw4_reg: sw4 {
+								regulator-min-microvolt = <1100000>;
+								regulator-max-microvolt = <1850000>;
+								regulator-boot-on;
+								regulator-always-on;
+							};
+
+							vpll_reg: vpll {
+								regulator-min-microvolt = <1050000>;
+								regulator-max-microvolt = <1800000>;
+								regulator-boot-on;
+								regulator-always-on;
+							};
+
+							vdig_reg: vdig {
+								regulator-min-microvolt = <1650000>;
+								regulator-max-microvolt = <1650000>;
+								regulator-boot-on;
+							};
+
+							vsd_reg: vsd {
+								regulator-min-microvolt = <3150000>;
+								regulator-max-microvolt = <3150000>;
+							};
+
+							vusb2_reg: vusb2 {
+								regulator-min-microvolt = <2400000>;
+								regulator-max-microvolt = <2775000>;
+								regulator-boot-on;
+								regulator-always-on;
+							};
+
+							vvideo_reg: vvideo {
+								regulator-min-microvolt = <2775000>;
+								regulator-max-microvolt = <2775000>;
+								regulator-boot-on;
+							};
+
+							vaudio_reg: vaudio {
+								regulator-min-microvolt = <2300000>;
+								regulator-max-microvolt = <3000000>;
+							};
+
+							vcam_reg: vcam {
+								regulator-min-microvolt = <2500000>;
+								regulator-max-microvolt = <3000000>;
+							};
+
+							vgen1_reg: vgen1 {
+								regulator-min-microvolt = <1200000>;
+								regulator-max-microvolt = <3150000>;
+							};
+
+							vgen2_reg: vgen2 {
+								regulator-min-microvolt = <3150000>;
+								regulator-max-microvolt = <3150000>;
+								regulator-always-on;
+							};
+
+							vgen3_reg: vgen3 {
+								regulator-min-microvolt = <1800000>;
+								regulator-max-microvolt = <2900000>;
+								regulator-always-on;
+							};
+						};
+					};
+
+					flash: sst25vf032b@1 {
+						#address-cells = <1>;
+						#size-cells = <1>;
+						compatible = "sst,sst25vf032b";
+						spi-max-frequency = <25000000>;
+						reg = <1>;
+
+						partition@0 {
+							label = "firmware";
+							reg = <0x0 0x200000>;
+						};
+
+						partition@200000 {
+							label = "user";
+							reg = <0x200000 0x200000>;
+						};
+					};
+				};
+			};
+
+			wdog@73f98000 {
+				status = "okay";
+			};
+
+			iomuxc@73fa8000 {
+				compatible = "fsl,imx51-iomuxc";
+				reg = <0x73fa8000 0x4000>;
+			};
+
+			uart1: serial@73fbc000 {
+				fsl,uart-has-rtscts;
+				status = "okay";
+			};
+
+		};
+
+		aips@80000000 {
+			sdma@83fb0000 {
+				fsl,sdma-ram-script-name = "imx/sdma/sdma-imx51.bin";
+			};
+
+			i2c@83fc4000 {
+				status = "okay";
+
+				codec: sgtl5000@0a {
+					compatible = "fsl,sgtl5000";
+					reg = <0x0a>;
+					clock-frequency = <12288000>;
+					VDDA-supply = <&vdig_reg>;
+					VDDIO-supply = <&vvideo_reg>;
+				};
+			};
+
+			audmux@83fd0000 {
+				status = "okay";
+			};
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		power {
+			label = "Power Button";
+			gpios = <&gpio2 31 0>;
+			linux,code = <116>; /* KEY_POWER */
+			gpio-key,wakeup;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		red {
+			label = "red";
+			gpios = <&gpio3 13>;
+			linux,default-trigger = "ide-disk";
+		};
+
+		green {
+			label = "green";
+			gpios = <&gpio3 14>;
+			linux,default-trigger = "default-on";
+		};
+
+		blue {
+			label = "blue";
+			gpios = <&gpio3 15>;
+			linux,default-trigger = "mmc0";
+		};
+	};
+
+	sound {
+		compatible = "fsl,imx-audio-sgtl5000";
+		model = "efikamx-sgtl5000";
+		ssi-controller = <&ssi2>;
+		audio-routing =
+			"MIC_IN", "Mic Jack",
+			"Mic Jack", "Mic Bias",
+			"Ext Spk", "LINE_OUT";
+		audio-codec = <&codec>;
+		mux-int-port = <2>;
+		mux-ext-port = <3>;
+	};
+};
diff --git a/arch/arm/mach-imx/Makefile.boot b/arch/arm/mach-imx/Makefile.boot
index 05541cf..3ed7c9d 100644
--- a/arch/arm/mach-imx/Makefile.boot
+++ b/arch/arm/mach-imx/Makefile.boot
@@ -38,7 +38,7 @@ zreladdr-$(CONFIG_SOC_IMX6Q)	+= 0x10008000
 params_phys-$(CONFIG_SOC_IMX6Q)	:= 0x10000100
 initrd_phys-$(CONFIG_SOC_IMX6Q)	:= 0x10800000
 
-dtb-$(CONFIG_MACH_IMX51_DT) += imx51-babbage.dtb
+dtb-$(CONFIG_MACH_IMX51_DT) += imx51-babbage.dtb imx51-efikamx.dtb
 dtb-$(CONFIG_MACH_IMX53_DT) += imx53-ard.dtb imx53-evk.dtb \
 			       imx53-qsb.dtb imx53-smd.dtb
 dtb-$(CONFIG_SOC_IMX6Q)	+= imx6q-arm2.dtb \
-- 
1.7.9.5