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Message-Id: <20231206160303.33185-4-hugo@hugovil.com>
Date: Wed, 6 Dec 2023 11:03:03 -0500
From: Hugo Villeneuve <hugo@...ovil.com>
To: robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
conor+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
leoyang.li@....com, robh@...nel.org
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, hugo@...ovil.com,
Hugo Villeneuve <hvilleneuve@...onoff.com>
Subject: [PATCH 3/3] arm64: dts: freescale: introduce dimonoff-gateway-evk board
From: Hugo Villeneuve <hvilleneuve@...onoff.com>
The Dimonoff gateway EVK board is based on a Variscite
VAR-SOM-NANO, with a NXP MX8MN nano CPU and also based on a Symphony
mx8mn EVK.
Signed-off-by: Hugo Villeneuve <hvilleneuve@...onoff.com>
---
arch/arm64/boot/dts/freescale/Makefile | 1 +
.../freescale/imx8mn-dimonoff-gateway-evk.dts | 159 ++++++++++++++++++
2 files changed, 160 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-dimonoff-gateway-evk.dts
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index d22e4f4f886d..1f29215ea9bb 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -97,6 +97,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-tqma8mqml-mba8mx-lvds-tm070jvhg33.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mn-beacon-kit.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mn-bsh-smm-s2.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mn-bsh-smm-s2pro.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mn-dimonoff-gateway-evk.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mn-evk.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mn-ddr3l-evk.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mn-ddr4-evk.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-dimonoff-gateway-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-dimonoff-gateway-evk.dts
new file mode 100644
index 000000000000..c4572be437bd
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-dimonoff-gateway-evk.dts
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 DimOnOff
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/usb/pd.h>
+#include "imx8mn-var-som-symphony.dts"
+
+/ {
+ model = "DimOnOff Gateway EVK board";
+ compatible = "dimonoff,dimonoff-gateway-evk", "variscite,var-som-mx8mn", "fsl,imx8mn";
+
+ /*
+ * U30 FPF2193 regulator.
+ * Source = BASE_PER_3V3 = SOM_3V3 (COM pin 49).
+ */
+ reg_disp_3v3: regulator-disp-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "Display 3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_keys>;
+
+ key-enter {
+ label = "enter";
+ gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_ENTER>;
+ wakeup-source;
+ };
+ };
+
+ /* Bourns PEC12R rotary encoder, 24 steps. */
+ rotary: rotary-encoder {
+ compatible = "rotary-encoder";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_rotary>;
+ gpios = <&gpio5 12 GPIO_ACTIVE_LOW>, /* A */
+ <&gpio5 13 GPIO_ACTIVE_LOW>; /* B */
+ linux,axis = <0>; /* REL_X */
+ rotary-encoder,encoding = "gray";
+ rotary-encoder,relative-axis;
+ };
+};
+
+/* Disable Asynchronous Sample Rate Converter (audio) */
+&easrc {
+ status = "disabled";
+};
+
+&ecspi1 {
+ /* Resistive touch controller */
+ /delete-node/ touchscreen@0;
+};
+
+&gpu {
+ status = "disabled";
+};
+
+&i2c2 {
+ adc@48 {
+ compatible = "ti,ads7924";
+ reg = <0x48>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adc>;
+ vref-supply = <®_disp_3v3>;
+ reset-gpios = <&gpio5 5 GPIO_ACTIVE_LOW>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0>;
+ label = "Pot0";
+ };
+ channel@1 {
+ reg = <1>;
+ label = "Pot1";
+ };
+ channel@2 {
+ reg = <2>;
+ label = "Pot2";
+ };
+ channel@3 {
+ reg = <3>;
+ label = "Pot3";
+ };
+ };
+
+ rtc@51 {
+ compatible = "nxp,pcf2129";
+ reg = <0x51>;
+ reset-source; /* For watchdog. */
+ };
+
+ rtc@53 {
+ compatible = "nxp,pcf2131";
+ reg = <0x53>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_rtc>;
+ reset-source; /* For watchdog. */
+ interrupt-parent = <&gpio5>;
+ interrupts = <10 IRQ_TYPE_EDGE_FALLING>; /* J17.6 on EVK */
+ };
+};
+
+&i2c3 {
+ touchscreen@38 {
+ status = "disabled";
+ };
+
+ codec@1a {
+ status = "disabled";
+ };
+
+ /* DS1337 RTC module */
+ rtc@68 {
+ status = "disabled";
+ };
+};
+
+&sai5 {
+ status = "disabled";
+};
+
+&iomuxc {
+ pinctrl_gpio_keys: gpiokeysgrp {
+ fsl,pins = <
+ MX8MN_IOMUXC_GPIO1_IO08_GPIO1_IO8 0xc6
+ >;
+ };
+
+ pinctrl_rotary: rotarygrp {
+ fsl,pins = <
+ MX8MN_IOMUXC_ECSPI2_MISO_GPIO5_IO12 0x00000156
+ MX8MN_IOMUXC_ECSPI2_SS0_GPIO5_IO13 0x00000156
+ >;
+ };
+
+ pinctrl_adc: adcgrp {
+ fsl,pins = <
+ MX8MN_IOMUXC_SPDIF_EXT_CLK_GPIO5_IO5 0x00000156
+ >;
+ };
+
+ pinctrl_rtc: rtcgrp {
+ fsl,pins = <
+ MX8MN_IOMUXC_ECSPI2_SCLK_GPIO5_IO10 0x00000156
+ MX8MN_IOMUXC_ECSPI2_MOSI_GPIO5_IO11 0x00000156
+ >;
+ };
+};
--
2.39.2
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