nitrogen6x: migrate to using device tree

Migrate to using device tree required for further driver model
integration.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
diff --git a/arch/arm/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/dts/imx6qdl-nitrogen6x.dtsi
new file mode 100644
index 0000000..5094929
--- /dev/null
+++ b/arch/arm/dts/imx6qdl-nitrogen6x.dtsi
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2013-2019 Boundary Devices, Inc.
+// Copyright 2012 Freescale Semiconductor, Inc.
+// Copyright 2011 Linaro Ltd.
+
+#include "imx6qdl-sabrelite.dtsi"
+
+&iomuxc {
+	pinctrl_enet: enetgrp {
+		fsl,pins = <
+			MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x1b0b0
+			MX6QDL_PAD_ENET_MDC__ENET_MDC		0x1b0b0
+			MX6QDL_PAD_RGMII_TXC__RGMII_TXC		0x100b0
+			MX6QDL_PAD_RGMII_TD0__RGMII_TD0		0x100b0
+			MX6QDL_PAD_RGMII_TD1__RGMII_TD1		0x100b0
+			MX6QDL_PAD_RGMII_TD2__RGMII_TD2		0x100b0
+			MX6QDL_PAD_RGMII_TD3__RGMII_TD3		0x100b0
+			MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL	0x100b0
+			MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK	0x100b0
+			MX6QDL_PAD_RGMII_RXC__RGMII_RXC		0x1b0b0
+			MX6QDL_PAD_RGMII_RD0__RGMII_RD0		0x1b0b0
+			MX6QDL_PAD_RGMII_RD1__RGMII_RD1		0x1b0b0
+			MX6QDL_PAD_RGMII_RD2__RGMII_RD2		0x1b0b0
+			MX6QDL_PAD_RGMII_RD3__RGMII_RD3		0x1b0b0
+			MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL	0x1b0b0
+#undef GP_ENET_PHY_RESET
+#define GP_ENET_PHY_RESET	<&gpio1 27 GPIO_ACTIVE_LOW>
+			MX6QDL_PAD_ENET_RXD0__GPIO1_IO27	0x030b0
+#define GPIRQ_ENET_PHY		<&gpio1 28 IRQ_TYPE_LEVEL_LOW>
+			MX6QDL_PAD_ENET_TX_EN__GPIO1_IO28	0x1b0b0
+		>;
+	};
+
+	pinctrl_hog: hoggrp {
+		fsl,pins = <
+			/* Spare */
+			MX6QDL_PAD_SD3_DAT4__GPIO7_IO01		0x1b0b0
+			MX6QDL_PAD_NANDF_D7__GPIO2_IO07		0x1b0b0
+			MX6QDL_PAD_GPIO_4__GPIO1_IO04		0x1b0b0
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D25__UART3_RX_DATA	0x1b0b1
+			MX6QDL_PAD_EIM_D24__UART3_TX_DATA	0x1b0b1
+			MX6QDL_PAD_EIM_D23__UART3_CTS_B		0x1b0b1
+			MX6QDL_PAD_EIM_D31__UART3_RTS_B		0x1b0b1
+		>;
+	};
+};
+
+&fec {
+#if 0
+	phy-reset-gpios = GP_ENET_PHY_RESET;
+#endif
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&usdhc3 {
+	/delete-property/ wp-gpios;
+};