ARM: dts: imx: add imx7ulp evk support

The NXP i.MX 7ULP Evaluation Kit (EVK) provides a platform for rapid
evaluation of the i.MX 7ULP, which features NXP's advanced implementation
of the Arm Cortex-A7 core, the Arm Cortex-M4 core, as well as a 3D and
2D Graphics Processing Units (GPUs).

The EVK enables HDMI output for simple out-of-the-box to bring up but
allows reconfiguration for MIPI displays. The EVK is designed as a
System-On-Module(SOM) board that connects to an associated baseboard.
The SOM provides 1 GB LPDDR3, 8 MB Quad SPI flash, Micro SD 3.0 card
socket, WiFi/ Bluetooth capability, USB 2.0 OTG with Type C connector
and an NXP PF1550 power management IC (PMIC). The baseboard provides
additional capabilities including a full SD/MMC 3.0 card socket, audio
codec, multiple sensors, an HDMI connector, and an alternate MIPI display
connector. Additionally, the EVK facilitates software development with the
ultimate goal of faster time to market through the support of both
Linux OS and AndroidTM rich operating systems, as well as FreeRTOS.

This patch aims to support the preliminary booting up features
as follows:
GPIO
LPUART
FEC
SD/MMC

See more board details:
https://www.nxp.com/products/processors-and-microcontrollers/
arm-based-processors-and-mcus/i.mx-applications-processors/
i.mx-7-processors/evaluation-kit-for-the-i.mx-7ulp-applications
-processor:MCIMX7ULP-EVK

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

1 files changed, 77 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx7ulp-evk.dts b/arch/arm/boot/dts/imx7ulp-evk.dts
new file mode 100644
index 000000000000..a09026a6d22e
--- /dev/null
+++ b/arch/arm/boot/dts/imx7ulp-evk.dts
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017-2018 NXP
+ *   Dong Aisheng <aisheng.dong@nxp.com>
+ */
+
+/dts-v1/;
+
+#include "imx7ulp.dtsi"
+
+/ {
+	model = "NXP i.MX7ULP EVK";
+	compatible = "fsl,imx7ulp-evk", "fsl,imx7ulp";
+
+	chosen {
+		stdout-path = &lpuart4;
+	};
+
+	memory@60000000 {
+		device_type = "memory";
+		reg = <0x60000000 0x40000000>;
+	};
+
+	reg_vsd_3v3: regulator-vsd-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "VSD_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_usdhc0_rst>;
+		gpio = <&gpio_ptd 0 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+};
+
+&lpuart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_lpuart4>;
+	status = "okay";
+};
+
+&usdhc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc0>;
+	cd-gpios = <&gpio_ptc 10 GPIO_ACTIVE_LOW>;
+	vmmc-supply = <&reg_vsd_3v3>;
+	status = "okay";
+};
+
+&iomuxc1 {
+	pinctrl_lpuart4: lpuart4grp {
+		fsl,pins = <
+			IMX7ULP_PAD_PTC3__LPUART4_RX	0x3
+			IMX7ULP_PAD_PTC2__LPUART4_TX	0x3
+		>;
+		bias-pull-up;
+	};
+
+	pinctrl_usdhc0: usdhc0grp {
+		fsl,pins = <
+			IMX7ULP_PAD_PTD1__SDHC0_CMD	0x43
+			IMX7ULP_PAD_PTD2__SDHC0_CLK	0x40
+			IMX7ULP_PAD_PTD7__SDHC0_D3	0x43
+			IMX7ULP_PAD_PTD8__SDHC0_D2	0x43
+			IMX7ULP_PAD_PTD9__SDHC0_D1	0x43
+			IMX7ULP_PAD_PTD10__SDHC0_D0	0x43
+			IMX7ULP_PAD_PTC10__PTC10	0x3	/* CD */
+		>;
+	};
+
+	pinctrl_usdhc0_rst: usdhc0-gpio-rst-grp {
+		fsl,pins = <
+			IMX7ULP_PAD_PTD0__PTD0		0x3
+		>;
+	};
+};