diff mbox series

[3/3] arm64: dts: freescale: Add DEBIX SOM A and SOM A I/O Board support

Message ID 20230704184109.991104-3-m.felsch@pengutronix.de
State Superseded
Headers show
Series [1/3] dt-bindings: arm: fsl: fix DEBIX binding | expand

Commit Message

Marco Felsch July 4, 2023, 6:41 p.m. UTC 
Add support for the Debix SOM A + SOM A I/O board. The commit enables
only the basic features like:
 - 2x UART
 - 2x Network
 - eMMC/µSD
 - CAN
 - QSPI
 - USB Host / Device

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---

Hi,

the required patchset for the onboard usb hub is here:
  https://lore.kernel.org/all/20230623142228.4069084-1-m.felsch@pengutronix.de/

 arch/arm64/boot/dts/freescale/Makefile        |   1 +
 .../freescale/imx8mp-debix-som-a-bmb-08.dts   | 476 ++++++++++++++++++
 .../dts/freescale/imx8mp-debix-som-a.dtsi     | 269 ++++++++++
 3 files changed, 746 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-debix-som-a-bmb-08.dts
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-debix-som-a.dtsi

Comments

Marco Felsch July 14, 2023, 2:38 p.m. UTC | #1 
Hi Fabio,

On 23-07-04, Fabio Estevam wrote:
> Hi Marco,
> 
> On Tue, Jul 4, 2023 at 3:41 PM Marco Felsch <m.felsch@pengutronix.de> wrote:
> 
> > +&fec {
> > +       pinctrl-names = "default";
> > +       pinctrl-0 = <&pinctrl_fec>;
> > +       phy-mode = "rgmii-id";
> > +       phy-handle = <&ethphy1>;
> > +       fsl,magic-packet;
> > +       phy-reset-gpios = <&gpio4 19 GPIO_ACTIVE_LOW>;
> > +       phy-reset-duration = <10>;
> > +       phy-reset-post-delay = <150>;
> 
> These properties are deprecated. Please move them under the mdio node.

right

> > +               /*
> > +                * Since USB1 is binded to peripheral mode we need to ensure
> 
> s/binded/bound

sure

> > +/* µSD Card */
> > +&usdhc2 {
> > +       pinctrl-names = "default", "state_100mhz", "state_200mhz";
> > +       pinctrl-0 = <&pinctrl_usdhc2>;
> > +       pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
> > +       pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
> > +       vmmc-supply = <&reg_usdhc2_vmmc>;
> > +       bus-width = <4>;
> > +       disable-wp;
> > +       no-sdio;
> > +       no-mmc;
> > +
> 
> No need for this blank line.

I added the blank lines for a better separation, but I can drop these.

> > +       assigned-clocks = <&clk IMX8MP_CLK_USDHC2>;
> > +       assigned-clock-rates = <400000000>;
> > +
> 
> Ditto.
> 
> > +
> > +       pmic@25 {
> > +               compatible = "nxp,pca9450c";
> > +               reg = <0x25>;
> > +               pinctrl-names = "default";
> > +               pinctrl-0 = <&pinctrl_pmic>;
> > +
> > +               interrupt-parent = <&gpio1>;
> > +               interrupts = <3 GPIO_ACTIVE_LOW>;
> > +
> > +               regulators {
> > +                       buck1: BUCK1 {
> > +                               regulator-name = "BUCK1";
> > +                               regulator-min-microvolt = <600000>;
> > +                               regulator-max-microvolt = <2187500>;
> > +                               regulator-boot-on;
> > +                               regulator-always-on;
> > +                               regulator-ramp-delay = <3125>;
> > +                       };
> > +
> > +                       buck2: BUCK2 {
> > +                               regulator-name = "BUCK2";
> > +                               regulator-min-microvolt = <600000>;
> > +                               regulator-max-microvolt = <2187500>;
> > +                               regulator-boot-on;
> > +                               regulator-always-on;
> > +                               regulator-ramp-delay = <3125>;
> > +                               nxp,dvs-run-voltage = <950000>;
> > +                               nxp,dvs-standby-voltage = <850000>;
> > +                       };
> > +
> > +                       buck4: BUCK4{
> 
> Missing space after BUCK4.

yes.

> > +                               regulator-name = "BUCK4";
> > +                               regulator-min-microvolt = <600000>;
> > +                               regulator-max-microvolt = <3400000>;
> > +                               regulator-boot-on;
> > +                               regulator-always-on;
> > +                       };
> > +
> > +                       buck5: BUCK5{
> 
> Ditto.

yes.

> > +&usdhc3 {
> > +       pinctrl-names = "default", "state_100mhz", "state_200mhz";
> > +       pinctrl-0 = <&pinctrl_usdhc3>;
> > +       pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
> > +       pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
> > +       bus-width = <8>;
> > +       non-removable;
> > +
> 
> No need for this blank line.
> 
> 
> > +       assigned-clocks = <&clk IMX8MP_CLK_USDHC3>;
> > +       assigned-clock-rates = <400000000>;
> > +
> 
> Ditto.

Removed these as well. Thanks for your review :)

Regards,
  Marco
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index ef7d17aef58f0..ca7c9595e6ffa 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -91,6 +91,7 @@  dtb-$(CONFIG_ARCH_MXC) += imx8mn-venice-gw7902.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-beacon-kit.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-data-modul-edm-sbc.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-debix-model-a.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-debix-som-a-bmb-08.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-pdk2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-pdk3.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a-bmb-08.dts b/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a-bmb-08.dts
new file mode 100644
index 0000000000000..1380a9d3dc8eb
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a-bmb-08.dts
@@ -0,0 +1,476 @@ 
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2019 NXP
+ * Copyright (C) 2023 Pengutronix, Marco Felsch <kernel@pengutronix.de>
+ */
+
+/dts-v1/;
+
+#include "imx8mp-debix-som-a.dtsi"
+
+/ {
+	model = "Polyhex i.MX8MPlus Debix SOM A on BMB-08";
+	compatible = "polyhex,imx8mp-debix-som-a-bmb-08", "polyhex,imx8mp-debix-som-a",
+		     "polyhex,imx8mp-debix", "fsl,imx8mp";
+
+	chosen {
+		stdout-path = &uart2;
+	};
+
+	regulator-baseboard-vdd3v3 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-name = "BB_VDD3V3";
+		gpio = <&expander0 10 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	reg_baseboard_vdd5v0: regulator-baseboard-vdd5v0 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-name = "BB_VDD5V";
+		gpio = <&expander0 9 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	regulator-som-vdd1v8 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-name = "SOM_VDD1V8_SW";
+		gpio = <&expander0 12 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	regulator-som-vdd3v3 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-name = "SOM_VDD3V3_SW";
+		gpio = <&expander0 11 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	reg_usdhc2_vmmc: regulator-usdhc2 {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_usdhc2_vmmc>;
+		regulator-name = "VSD_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	regulator-vbus-usb20 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-name = "USB20_5V";
+		gpio = <&expander1 14 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+		vin-supply = <&reg_baseboard_vdd5v0>;
+	};
+
+	regulator-vbus-usb30 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-name = "USB30_5V";
+		gpio = <&expander1 12 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+		vin-supply = <&reg_baseboard_vdd5v0>;
+	};
+
+	reg_vdd5v0: regulator-vdd5v0 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-name = "VDD_5V";
+		gpio = <&expander0 8 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+};
+
+&eqos {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_eqos>;
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethphy0>;
+	snps,reset-gpio = <&gpio4 18 GPIO_ACTIVE_LOW>;
+	snps,reset-delays-us = <10 20 200000>;
+	status = "okay";
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy0: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0>;
+			qca,disable-smarteee;
+			vddio-supply = <&vddio_phy0>;
+
+			vddio_phy0: vddio-phy0-regulator {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+		};
+	};
+};
+
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec>;
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethphy1>;
+	fsl,magic-packet;
+	phy-reset-gpios = <&gpio4 19 GPIO_ACTIVE_LOW>;
+	phy-reset-duration = <10>;
+	phy-reset-post-delay = <150>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy1: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0>;
+			qca,disable-smarteee;
+			vddio-supply = <&vddio_phy1>;
+
+			vddio_phy1: vddio-phy1-regulator {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+		};
+	};
+};
+
+&flexcan1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan1>;
+	xceiver-supply = <&reg_vdd5v0>;
+	status = "okay";
+};
+
+&flexcan2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan2>;
+	xceiver-supply = <&reg_vdd5v0>;
+	status = "okay";
+};
+
+&flexspi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexspi0>;
+	status = "okay";
+
+	flash: flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <80000000>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+	};
+};
+
+&i2c4 {
+	expander0: gpio@20 {
+		compatible = "nxp,pca9535";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <0x02>;
+	};
+
+	expander1: gpio@23 {
+		compatible = "nxp,pca9535";
+		reg = <0x23>;
+		gpio-controller;
+		#gpio-cells = <0x02>;
+
+		/*
+		 * Since USB1 is binded to peripheral mode we need to ensure
+		 * that VBUS is turned off.
+		 */
+		usb30-otg-hog {
+			gpio-hog;
+			gpios = <13 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "USB30_OTG_EN";
+		};
+	};
+
+	eeprom@52 {
+		compatible = "atmel,24c02";
+		reg = <0x52>;
+		pagesize = <16>;
+	};
+
+	rtc@51 {
+		compatible = "haoyu,hym8563";
+		reg = <0x51>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_rtc>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+		#clock-cells = <0>;
+	};
+};
+
+&snvs_pwrkey {
+	status = "okay";
+};
+
+/* Debug */
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+&usb3_0 {
+	status = "okay";
+};
+
+&usb3_1 {
+	status = "okay";
+};
+
+&usb_dwc3_0 {
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usb_dwc3_1 {
+	dr_mode = "host";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	/* 2.x hub on port 1 */
+	usb_hub_2_x: hub@1 {
+		compatible = "usb5e3,610";
+		reg = <1>;
+		reset-gpios = <&expander1 9 GPIO_ACTIVE_LOW>;
+		vdd-supply = <&reg_vdd5v0>;
+		peer-hub = <&usb_hub_3_x>;
+	};
+
+	/* 3.x hub on port 2 */
+	usb_hub_3_x: hub@2 {
+		compatible = "usb5e3,620";
+		reg = <2>;
+		reset-gpios = <&expander1 9 GPIO_ACTIVE_LOW>;
+		vdd-supply = <&reg_vdd5v0>;
+		peer-hub = <&usb_hub_2_x>;
+	};
+};
+
+&usb3_phy0 {
+	status = "okay";
+};
+
+&usb3_phy1 {
+	status = "okay";
+};
+
+/* µSD Card */
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+	vmmc-supply = <&reg_usdhc2_vmmc>;
+	bus-width = <4>;
+	disable-wp;
+	no-sdio;
+	no-mmc;
+
+	assigned-clocks = <&clk IMX8MP_CLK_USDHC2>;
+	assigned-clock-rates = <400000000>;
+
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_eqos: eqosgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_ENET_MDC__ENET_QOS_MDC				0x3
+			MX8MP_IOMUXC_ENET_MDIO__ENET_QOS_MDIO				0x3
+			MX8MP_IOMUXC_ENET_RD0__ENET_QOS_RGMII_RD0			0x91
+			MX8MP_IOMUXC_ENET_RD1__ENET_QOS_RGMII_RD1			0x91
+			MX8MP_IOMUXC_ENET_RD2__ENET_QOS_RGMII_RD2			0x91
+			MX8MP_IOMUXC_ENET_RD3__ENET_QOS_RGMII_RD3			0x91
+			MX8MP_IOMUXC_ENET_RXC__CCM_ENET_QOS_CLOCK_GENERATE_RX_CLK	0x91
+			MX8MP_IOMUXC_ENET_RX_CTL__ENET_QOS_RGMII_RX_CTL			0x91
+			MX8MP_IOMUXC_ENET_TD0__ENET_QOS_RGMII_TD0			0x1f
+			MX8MP_IOMUXC_ENET_TD1__ENET_QOS_RGMII_TD1			0x1f
+			MX8MP_IOMUXC_ENET_TD2__ENET_QOS_RGMII_TD2			0x1f
+			MX8MP_IOMUXC_ENET_TD3__ENET_QOS_RGMII_TD3			0x1f
+			MX8MP_IOMUXC_ENET_TX_CTL__ENET_QOS_RGMII_TX_CTL			0x1f
+			MX8MP_IOMUXC_ENET_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK	0x1f
+
+			MX8MP_IOMUXC_SAI1_RXFS__ENET1_1588_EVENT0_IN			0x1f
+			MX8MP_IOMUXC_SAI1_TXD6__GPIO4_IO18				0x19
+		>;
+	};
+
+	pinctrl_fec: fecgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI1_RXD2__ENET1_MDC		0x3
+			MX8MP_IOMUXC_SAI1_RXD3__ENET1_MDIO		0x3
+			MX8MP_IOMUXC_SAI1_RXD4__ENET1_RGMII_RD0		0x91
+			MX8MP_IOMUXC_SAI1_RXD5__ENET1_RGMII_RD1		0x91
+			MX8MP_IOMUXC_SAI1_RXD6__ENET1_RGMII_RD2		0x91
+			MX8MP_IOMUXC_SAI1_RXD7__ENET1_RGMII_RD3		0x91
+			MX8MP_IOMUXC_SAI1_TXC__ENET1_RGMII_RXC		0x91
+			MX8MP_IOMUXC_SAI1_TXFS__ENET1_RGMII_RX_CTL	0x91
+			MX8MP_IOMUXC_SAI1_TXD0__ENET1_RGMII_TD0		0x1f
+			MX8MP_IOMUXC_SAI1_TXD1__ENET1_RGMII_TD1		0x1f
+			MX8MP_IOMUXC_SAI1_TXD2__ENET1_RGMII_TD2		0x1f
+			MX8MP_IOMUXC_SAI1_TXD3__ENET1_RGMII_TD3		0x1f
+			MX8MP_IOMUXC_SAI1_TXD4__ENET1_RGMII_TX_CTL	0x1f
+			MX8MP_IOMUXC_SAI1_TXD5__ENET1_RGMII_TXC		0x1f
+			MX8MP_IOMUXC_SAI1_RXD0__ENET1_1588_EVENT1_IN    0x1f
+			MX8MP_IOMUXC_SAI1_TXD7__GPIO4_IO19		0x19
+		>;
+	};
+
+	pinctrl_flexcan1: flexcan1grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI5_RXD2__CAN1_RX			0x154
+			MX8MP_IOMUXC_SAI5_RXD1__CAN1_TX			0x154
+		>;
+	};
+
+	pinctrl_flexcan2: flexcan2grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI5_MCLK__CAN2_RX			0x154
+			MX8MP_IOMUXC_SAI5_RXD3__CAN2_TX			0x154
+		>;
+	};
+
+	pinctrl_flexspi0: flexspi0grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_ALE__FLEXSPI_A_SCLK           0x1c2
+			MX8MP_IOMUXC_NAND_CE0_B__FLEXSPI_A_SS0_B        0x82
+			MX8MP_IOMUXC_NAND_DATA00__FLEXSPI_A_DATA00      0x82
+			MX8MP_IOMUXC_NAND_DATA01__FLEXSPI_A_DATA01      0x82
+			MX8MP_IOMUXC_NAND_DATA02__FLEXSPI_A_DATA02      0x82
+			MX8MP_IOMUXC_NAND_DATA03__FLEXSPI_A_DATA03      0x82
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL			0x400001c2
+			MX8MP_IOMUXC_I2C1_SDA__I2C1_SDA			0x400001c2
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C4_SCL__I2C4_SCL			0x400001c3
+			MX8MP_IOMUXC_I2C4_SDA__I2C4_SDA			0x400001c3
+		>;
+	};
+
+	pinctrl_rtc: rtcgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI1_RXD1__GPIO4_IO03		0x140
+		>;
+	};
+
+	pinctrl_pmic: pmicgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03		0x41
+		>;
+	};
+
+	pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19		0x41
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX		0x14f
+			MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX		0x14f
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_UART3_RXD__UART3_DCE_RX		0x49
+			MX8MP_IOMUXC_UART3_TXD__UART3_DCE_TX		0x49
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_UART4_RXD__UART4_DCE_RX		0x49
+			MX8MP_IOMUXC_UART4_TXD__UART4_DCE_TX		0x49
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK		0x190
+			MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD		0x1d0
+			MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0		0x1d0
+			MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1		0x1d0
+			MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2		0x1d0
+			MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3		0x1d0
+			MX8MP_IOMUXC_GPIO1_IO04__USDHC2_VSELECT		0xc1
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK		0x194
+			MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD		0x1d4
+			MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0		0x1d4
+			MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1		0x1d4
+			MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2		0x1d4
+			MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3		0x1d4
+			MX8MP_IOMUXC_GPIO1_IO04__USDHC2_VSELECT		0xc1
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK		0x196
+			MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD		0x1d6
+			MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0		0x1d6
+			MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1		0x1d6
+			MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2		0x1d6
+			MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3		0x1d6
+			MX8MP_IOMUXC_GPIO1_IO04__USDHC2_VSELECT		0xc1
+		>;
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a.dtsi
new file mode 100644
index 0000000000000..151a3ee0d02f7
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a.dtsi
@@ -0,0 +1,269 @@ 
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2019 NXP
+ * Copyright (C) 2023 Pengutronix, Marco Felsch <kernel@pengutronix.de>
+ */
+
+#include "imx8mp.dtsi"
+
+/ {
+	model = "Polyhex i.MX8MPlus Debix SOM A";
+	compatible = "polyhex,imx8mp-debix-som-a", "polyhex,imx8mp-debix", "fsl,imx8mp";
+};
+
+&A53_0 {
+	cpu-supply = <&buck2>;
+};
+
+&A53_1 {
+	cpu-supply = <&buck2>;
+};
+
+&A53_2 {
+	cpu-supply = <&buck2>;
+};
+
+&A53_3 {
+	cpu-supply = <&buck2>;
+};
+
+&i2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	pmic@25 {
+		compatible = "nxp,pca9450c";
+		reg = <0x25>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pmic>;
+
+		interrupt-parent = <&gpio1>;
+		interrupts = <3 GPIO_ACTIVE_LOW>;
+
+		regulators {
+			buck1: BUCK1 {
+				regulator-name = "BUCK1";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <2187500>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+			};
+
+			buck2: BUCK2 {
+				regulator-name = "BUCK2";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <2187500>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+				nxp,dvs-run-voltage = <950000>;
+				nxp,dvs-standby-voltage = <850000>;
+			};
+
+			buck4: BUCK4{
+				regulator-name = "BUCK4";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck5: BUCK5{
+				regulator-name = "BUCK5";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck6: BUCK6 {
+				regulator-name = "BUCK6";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo1: LDO1 {
+				regulator-name = "LDO1";
+				regulator-min-microvolt = <1600000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo2: LDO2 {
+				regulator-name = "LDO2";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1150000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo3: LDO3 {
+				regulator-name = "LDO3";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo4: LDO4 {
+				regulator-name = "LDO4";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo5: LDO5 {
+				regulator-name = "LDO5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+};
+
+&i2c4 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	status = "okay";
+
+	adc@48 {
+		 compatible = "ti,ads1115";
+		 reg = <0x48>;
+
+		 #address-cells = <1>;
+		 #size-cells = <0>;
+
+		 channel@4 {
+			 reg = <4>;
+			 ti,gain = <1>;
+			 ti,datarate = <7>;
+		 };
+		 channel@5 {
+			 reg = <5>;
+			 ti,gain = <1>;
+			 ti,datarate = <7>;
+		 };
+		 channel@6 {
+			 reg = <6>;
+			 ti,gain = <1>;
+			 ti,datarate = <7>;
+		 };
+		 channel@7 {
+			 reg = <7>;
+			 ti,gain = <1>;
+			 ti,datarate = <7>;
+		 };
+	 };
+};
+
+&snvs_pwrkey {
+	status = "okay";
+};
+
+/* eMMC */
+&usdhc3 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+	bus-width = <8>;
+	non-removable;
+
+	assigned-clocks = <&clk IMX8MP_CLK_USDHC3>;
+	assigned-clock-rates = <400000000>;
+
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL			0x400001c2
+			MX8MP_IOMUXC_I2C1_SDA__I2C1_SDA			0x400001c2
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C4_SCL__I2C4_SCL			0x400001c3
+			MX8MP_IOMUXC_I2C4_SDA__I2C4_SDA			0x400001c3
+		>;
+	};
+
+	pinctrl_pmic: pmicgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03		0x41
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK		0x190
+			MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD		0x1d0
+			MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0		0x1d0
+			MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1		0x1d0
+			MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2		0x1d0
+			MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3		0x1d0
+			MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4		0x1d0
+			MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5		0x1d0
+			MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6		0x1d0
+			MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7		0x1d0
+			MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE		0x190
+		>;
+	};
+
+	pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK		0x194
+			MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD		0x1d4
+			MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0		0x1d4
+			MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1		0x1d4
+			MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2		0x1d4
+			MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3		0x1d4
+			MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4		0x1d4
+			MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5		0x1d4
+			MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6		0x1d4
+			MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7		0x1d4
+			MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE		0x194
+		>;
+	};
+
+	pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK		0x196
+			MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD		0x1d6
+			MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0		0x1d6
+			MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1		0x1d6
+			MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2		0x1d6
+			MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3		0x1d6
+			MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4		0x1d6
+			MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5		0x1d6
+			MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6		0x1d6
+			MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7		0x1d6
+			MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE		0x196
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO02__WDOG1_WDOG_B		0xc6
+		>;
+	};
+};