RiOTboard: add new board

this board is produced by Embest/Element 14 and is based on i.MX6 Solo
The following features are tested :
- UART2 (console)
- eMMC
- SDCard
- uSDCard
- Ethernet
- USB Host (through 4 ports hub)
- I2C 1/2/3
- 2 LEDs

Boot on eMMC and through USB loader are tested.

For more informations on this board : http://www.riotboard.org/

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 391 insertions, 0 deletions

diff --git a/arch/arm/dts/imx6s-riotboard.dts b/arch/arm/dts/imx6s-riotboard.dts
new file mode 100644
index 0000000000..14d0b804a5
--- /dev/null
+++ b/arch/arm/dts/imx6s-riotboard.dts
@@ -0,0 +1,391 @@
+/*
+ * Copyright (C) 2014 Eric Bénard - Eukréa Electromatique
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License version 2.
+ */
+/dts-v1/;
+
+#include "imx6dl.dtsi"
+
+/ {
+	model = "RIoTboard Solo";
+	compatible = "embest,riotboard", "fsl,imx6dl";
+
+	chosen {
+		linux,stdout-path = &uart2;
+
+		environment@0 {
+			compatible = "barebox,environment";
+			device-path = &usdhc4, "partname:barebox-environment";
+		};
+	};
+
+	memory {
+		reg = <0x10000000 0x40000000>;
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		d45 {
+			label = "d45";
+			gpios = <&gpio5 2 1>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		d46 {
+			label = "d46";
+			gpios = <&gpio3 28 1>;
+			linux,default-trigger = "default-on";
+		};
+	};
+
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reg_3p3v: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "3P3V";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+	};
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	imx6s-riotboard {
+		pinctrl_hog: hoggrp {
+			fsl,pins = <
+				MX6QDL_PAD_EIM_A25__GPIO5_IO02		0x80000000 /* LED D45 */
+				MX6QDL_PAD_EIM_D28__GPIO3_IO28		0x80000000 /* LED D46 */
+				MX6QDL_PAD_DISP0_DAT22__GPIO5_IO16	0x80000000 /* PMIC_INT_B */
+				MX6QDL_PAD_GPIO_0__CCM_CLKO1		0x030b0 /* CAM_MCLK + SGTL_MCLK */
+			>;
+		};
+		pinctrl_uart2: uart2grp {
+			fsl,pins = <MX6QDL_UART2_PINGRP1>;
+		};
+		pinctrl_rgmii_ar8035: rgmii_ar8035 {
+			fsl,pins = <
+				MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x1b0b0
+				MX6QDL_PAD_ENET_MDC__ENET_MDC		0x1b0b0
+				/* AR8035 reset */
+				MX6QDL_PAD_EIM_D31__GPIO3_IO31		0x130b0
+				/* AR8035 interrupt */
+				MX6QDL_PAD_ENET_TX_EN__GPIO1_IO28	0x80000000
+				/* GPIO16 -> AR8035 25MHz */
+				MX6QDL_PAD_GPIO_16__ENET_REF_CLK	0xc0000000
+				MX6QDL_PAD_RGMII_TXC__RGMII_TXC		0x80000000
+				MX6QDL_PAD_RGMII_TD0__RGMII_TD0		0x1b0b0
+				MX6QDL_PAD_RGMII_TD1__RGMII_TD1		0x1b0b0
+				MX6QDL_PAD_RGMII_TD2__RGMII_TD2		0x1b0b0
+				MX6QDL_PAD_RGMII_TD3__RGMII_TD3		0x1b0b0
+				MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL	0x1b0b0
+				/* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
+				MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK	0x0a0b1
+				/* AR8035 pin strapping: IO voltage: pull up */
+				MX6QDL_PAD_RGMII_RXC__RGMII_RXC		0x1b0b0
+				/* AR8035 pin strapping: PHYADDR#0: pull down */
+				MX6QDL_PAD_RGMII_RD0__RGMII_RD0		0x130b0
+				/* AR8035 pin strapping: PHYADDR#1: pull down */
+				MX6QDL_PAD_RGMII_RD1__RGMII_RD1		0x130b0
+				/* AR8035 pin strapping: MODE#1: pull up */
+				MX6QDL_PAD_RGMII_RD2__RGMII_RD2		0x1b0b0
+				/* AR8035 pin strapping: MODE#3: pull up */
+				MX6QDL_PAD_RGMII_RD3__RGMII_RD3		0x1b0b0
+				/* AR8035 pin strapping: MODE#0: pull down */
+				MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL	0x130b0
+			>;
+		};
+		pinctrl_usdhc4: usdhc4grp {
+			fsl,pins = <
+				MX6QDL_PAD_SD4_CLK__SD4_CLK			0x80000000
+				MX6QDL_PAD_SD4_CMD__SD4_CMD			0x80000000
+				MX6QDL_PAD_SD4_DAT0__SD4_DATA0			0x80000000
+				MX6QDL_PAD_SD4_DAT1__SD4_DATA1			0x80000000
+				MX6QDL_PAD_SD4_DAT2__SD4_DATA2			0x80000000
+				MX6QDL_PAD_SD4_DAT3__SD4_DATA3			0x80000000
+			>;
+		};
+		pinctrl_usdhc2: usdhc2grp {
+			fsl,pins = <
+				MX6QDL_PAD_SD2_CLK__SD2_CLK			0x80000000
+				MX6QDL_PAD_SD2_CMD__SD2_CMD			0x80000000
+				MX6QDL_PAD_SD2_DAT0__SD2_DATA0			0x80000000
+				MX6QDL_PAD_SD2_DAT1__SD2_DATA1			0x80000000
+				MX6QDL_PAD_SD2_DAT2__SD2_DATA2			0x80000000
+				MX6QDL_PAD_SD2_DAT3__SD2_DATA3			0x80000000
+				MX6QDL_PAD_GPIO_2__GPIO1_IO02			0x80000000
+				MX6QDL_PAD_GPIO_4__GPIO1_IO04			0x80000000
+			>;
+		};
+		pinctrl_usdhc3: usdhc3grp {
+			fsl,pins = <
+				MX6QDL_PAD_SD3_CMD__SD3_CMD			0x80000000
+				MX6QDL_PAD_SD3_CLK__SD3_CLK			0x80000000
+				MX6QDL_PAD_SD3_DAT0__SD3_DATA0			0x80000000
+				MX6QDL_PAD_SD3_DAT1__SD3_DATA1			0x80000000
+				MX6QDL_PAD_SD3_DAT2__SD3_DATA2			0x80000000
+				MX6QDL_PAD_SD3_DAT3__SD3_DATA3			0x80000000
+				MX6QDL_PAD_SD3_DAT4__GPIO7_IO01			0x80000000
+				MX6QDL_PAD_SD3_DAT5__GPIO7_IO00			0x80000000
+			>;
+		};
+		pinctrl_usbotg: usbotggrp {
+			fsl,pins = <
+				MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID		0x80000000
+				MX6QDL_PAD_EIM_D22__USB_OTG_PWR			0x80000000
+				MX6QDL_PAD_EIM_D21__USB_OTG_OC			0x80000000
+			>;
+		};
+		pinctrl_i2c1_2: i2c1grp-2 {
+			fsl,pins = <
+				MX6QDL_PAD_CSI0_DAT9__I2C1_SCL 0x4001b8b1
+				MX6QDL_PAD_CSI0_DAT8__I2C1_SDA 0x4001b8b1
+			>;
+		};
+		pinctrl_i2c2_2: i2c2grp-2 {
+			fsl,pins = <
+				MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1
+				MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1
+			>;
+		};
+		pinctrl_i2c3_2: i2c3grp-2 {
+			fsl,pins = <
+				MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001b8b1
+				MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001b8b1
+			>;
+		};
+		pinctrl_i2c4_2: i2c4grp-2 {
+			fsl,pins = <
+				MX6QDL_PAD_GPIO_7__I2C4_SCL 0x4001b8b1
+				MX6QDL_PAD_GPIO_8__I2C4_SDA 0x4001b8b1
+			>;
+		};
+	};
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii_ar8035>;
+	phy-mode = "rgmii";
+	phy-reset-duration = <2>;
+	phy-reset-gpios = <&gpio3 31 0>;
+	status = "okay";
+};
+
+&usdhc2 {
+	/* SD card socket - bottom */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	bus-width = <4>;
+	cd-gpios = <&gpio1 4 0>;
+	wp-gpios = <&gpio1 2 0>;
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <1>;
+};
+
+&usdhc3 {
+	/* uSD card socket - top */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	bus-width = <4>;
+	cd-gpios = <&gpio7 0 0>;
+	wp-gpios = <&gpio7 1 0>;
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <1>;
+};
+
+&usdhc4 {
+	/* eMMC */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc4>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	partition@0 {
+		label = "barebox";
+		reg = <0x0 0x80000>;
+	};
+
+	partition@1 {
+		label = "barebox-environment";
+		reg = <0x80000 0x80000>;
+	};
+};
+
+&usbh1 {
+	status = "okay";
+	phy_type = "utmi";
+	disable-over-current;
+};
+
+&usbotg {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg>;
+	phy_type = "utmi";
+	dr_mode = "peripheral";
+	otg_id_pin_select_change;
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1_2>;
+
+	pmic: pf0100@08 {
+		compatible = "pf0100-regulator";
+		reg = <0x08>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <16 8>;
+
+		regulators {
+			reg_vddcore: sw1ab {
+				regulator-min-microvolt = <300000>;
+				regulator-max-microvolt = <1875000>;
+				regulator-always-on;
+			};
+
+			reg_vddsoc: sw1c {
+				regulator-min-microvolt = <300000>;
+				regulator-max-microvolt = <1875000>;
+				regulator-always-on;
+			};
+
+			reg_gen_3v3: sw2 {
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+
+			reg_ddr_1v5a: sw3a {
+				regulator-min-microvolt = <400000>;
+				regulator-max-microvolt = <1975000>;
+				regulator-always-on;
+			};
+
+			reg_ddr_1v5b: sw3b {
+				regulator-min-microvolt = <400000>;
+				regulator-max-microvolt = <1975000>;
+				regulator-always-on;
+			};
+
+			reg_ddr_vtt: sw4 {
+				regulator-min-microvolt = <400000>;
+				regulator-max-microvolt = <1975000>;
+				regulator-always-on;
+			};
+
+			reg_5v_600mA: swbst {
+				regulator-min-microvolt = <5000000>;
+				regulator-max-microvolt = <5150000>;
+				regulator-always-on;
+			};
+
+			reg_snvs_3v: vsnvs {
+				regulator-min-microvolt = <1500000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-always-on;
+			};
+
+			reg_vrefddr: vrefddr {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <750000>;
+				regulator-always-on;
+			};
+
+			reg_vgen1_1v5: vgen1 {
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1550000>;
+				/* not used */
+			};
+
+			reg_vgen2_1v2_eth: vgen2 {
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1550000>;
+				regulator-always-on;
+			};
+
+			reg_vgen3_2v8: vgen3 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+
+			reg_vgen4_1v8: vgen4 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+
+			reg_vgen5_2v5_sgtl: vgen5 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+
+			reg_vgen6_3v3: vgen6 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+		};
+	};
+
+	codec: sgtl5000@0a {
+		compatible = "fsl,sgtl5000";
+		reg = <0x0a>;
+		clocks = <&clks 201>;
+		VDDA-supply = <&reg_vgen5_2v5_sgtl>;
+		VDDIO-supply = <&reg_3p3v>;
+	};
+};
+
+&i2c2 {
+	status = "okay";
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2_2>;
+};
+
+&i2c3 {
+	status = "okay";
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3_2>;
+};
+
+&i2c4 {
+	status = "okay";
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4_2>;
+};
+
+&ocotp {
+	barebox,provide-mac-address = <&fec 0x620>;
+};
+