diff mbox series

[v4,2/2] arm64: dts: imx93-var-som: Add Variscite VAR-SOM-MX93

Message ID 20231227170919.8771-3-othacehe@gnu.org
State Superseded
Headers show
Series Add Variscite VAR-SOM-MX93 support | expand

Commit Message

Mathieu Othacehe Dec. 27, 2023, 5:09 p.m. UTC
Add DTSI for Variscite VAR-SOM-MX93 System on Module and DTS for Variscite
VAR-SOM-MX93 on Symphony evaluation board.

This version comes with:
- NXP i.MX 93 Dual, 1.7GHz, Cortex-A55 + Cortex-M33
- 2 GB of RAM
- 16GB eMMC
- 802.11ax/ac/a/b/g/n WiFi with 5.3 Bluetooth
- CAN bus
- Audio codec

Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
---
 arch/arm64/boot/dts/freescale/Makefile        |   1 +
 .../dts/freescale/imx93-var-som-symphony.dts  | 303 ++++++++++++++++++
 .../boot/dts/freescale/imx93-var-som.dtsi     | 111 +++++++
 3 files changed, 415 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
 create mode 100644 arch/arm64/boot/dts/freescale/imx93-var-som.dtsi

Comments

Stefan Wahren Dec. 28, 2023, 8:46 p.m. UTC | #1
Hi Mathieu,

Am 27.12.23 um 18:09 schrieb Mathieu Othacehe:
> Add DTSI for Variscite VAR-SOM-MX93 System on Module and DTS for Variscite
> VAR-SOM-MX93 on Symphony evaluation board.
>
> This version comes with:
> - NXP i.MX 93 Dual, 1.7GHz, Cortex-A55 + Cortex-M33
> - 2 GB of RAM
> - 16GB eMMC
> - 802.11ax/ac/a/b/g/n WiFi with 5.3 Bluetooth
> - CAN bus
> - Audio codec
>
> Reviewed-by: Fabio Estevam <festevam@gmail.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
> ---
>   arch/arm64/boot/dts/freescale/Makefile        |   1 +
>   .../dts/freescale/imx93-var-som-symphony.dts  | 303 ++++++++++++++++++
>   .../boot/dts/freescale/imx93-var-som.dtsi     | 111 +++++++
>   3 files changed, 415 insertions(+)
>   create mode 100644 arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
>   create mode 100644 arch/arm64/boot/dts/freescale/imx93-var-som.dtsi
>
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index 2e027675d7bb..a6f1700961e3 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -203,6 +203,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8ulp-evk.dtb
>   dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb
>   dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxca.dtb
>   dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxla.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx93-var-som-symphony.dtb
>
>   imx8mm-venice-gw72xx-0x-imx219-dtbs	:= imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-imx219.dtbo
>   imx8mm-venice-gw72xx-0x-rpidsi-dtbs	:= imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rpidsi.dtbo
> diff --git a/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
> new file mode 100644
> index 000000000000..3b7a01fb1b51
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
> @@ -0,0 +1,303 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright 2021 NXP
> + * Copyright 2023 Variscite Ltd.
> + */
> +
> +/dts-v1/;
> +
> +#include "imx93-var-som.dtsi"
> +
> +/{
> +	model = "Variscite VAR-SOM-MX93 on Symphony evaluation board";
> +	compatible = "variscite,var-som-mx93-symphony",
> +		     "variscite,var-som-mx93", "fsl,imx93";
> +
> +	aliases {
> +		ethernet0 = &eqos;
> +		ethernet1 = &fec;
> +	};
> +
> +	chosen {
> +		stdout-path = &lpuart1;
> +	};
> +
> +	/*
> +	 * Needed only for Symphony <= v1.5
> +	 */
> +	reg_fec_phy: regulator-fec-phy {
> +		compatible = "regulator-fixed";
> +		regulator-name = "fec-phy";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +		regulator-enable-ramp-delay = <20000>;
> +		gpio = <&pca9534 7 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 18 GPIO_ACTIVE_HIGH>;
> +		off-on-delay-us = <20000>;
> +		enable-active-high;
> +	};
> +
> +	reg_vref_1v8: regulator-adc-vref {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vref_1v8";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	reserved-memory {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		ethosu_mem: ethosu-region@88000000 {
> +			compatible = "shared-dma-pool";
> +			reusable;
> +			reg = <0x0 0x88000000 0x0 0x8000000>;
> +		};
> +
> +		vdev0vring0: vdev0vring0@87ee0000 {
> +			reg = <0 0x87ee0000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		vdev0vring1: vdev0vring1@87ee8000 {
> +			reg = <0 0x87ee8000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		vdev1vring0: vdev1vring0@87ef0000 {
> +			reg = <0 0x87ef0000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		vdev1vring1: vdev1vring1@87ef8000 {
> +			reg = <0 0x87ef8000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		rsc_table: rsc-table@2021f000 {
> +			reg = <0 0x2021f000 0 0x1000>;
> +			no-map;
> +		};
> +
> +		vdevbuffer: vdevbuffer@87f00000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0 0x87f00000 0 0x100000>;
> +			no-map;
> +		};
> +
> +		ele_reserved: ele-reserved@87de0000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0 0x87de0000 0 0x100000>;
> +			no-map;
> +		};
> +	};
> +};
> +
> +/* Use external instead of internal RTC*/
> +&bbnsm_rtc {
> +	status = "disabled";
> +};
> +
> +&eqos {
> +	mdio {
> +		ethphy1: ethernet-phy@5 {
> +			compatible = "ethernet-phy-ieee802.3-c22";
> +			reg = <5>;
> +			qca,disable-smarteee;
> +			eee-broken-1000t;
> +			reset-gpios = <&pca9534 5 GPIO_ACTIVE_LOW>;
> +			reset-assert-us = <10000>;
> +			reset-deassert-us = <20000>;
> +			vddio-supply = <&vddio1>;
> +
> +			vddio1: vddio-regulator {
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <1800000>;
> +			};
> +		};
> +	};
> +};
> +
> +&fec {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_fec>;
> +	phy-mode = "rgmii";
> +	phy-handle = <&ethphy1>;
> +	phy-supply = <&reg_fec_phy>;
> +	status = "okay";
> +};
> +
> +&flexcan1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_flexcan1>;
> +	status = "okay";
> +};
> +
> +&iomuxc {
> +	pinctrl_fec: fecgrp {
> +		fsl,pins = <
> +			MX93_PAD_ENET2_RD0__ENET1_RGMII_RD0		0x57e
> +			MX93_PAD_ENET2_RD1__ENET1_RGMII_RD1		0x57e
> +			MX93_PAD_ENET2_RD2__ENET1_RGMII_RD2		0x57e
> +			MX93_PAD_ENET2_RD3__ENET1_RGMII_RD3		0x57e
> +			MX93_PAD_ENET2_RXC__ENET1_RGMII_RXC		0x5fe
> +			MX93_PAD_ENET2_RX_CTL__ENET1_RGMII_RX_CTL	0x57e
> +			MX93_PAD_ENET2_TD0__ENET1_RGMII_TD0		0x57e
> +			MX93_PAD_ENET2_TD1__ENET1_RGMII_TD1		0x57e
> +			MX93_PAD_ENET2_TD2__ENET1_RGMII_TD2		0x57e
> +			MX93_PAD_ENET2_TD3__ENET1_RGMII_TD3		0x57e
> +			MX93_PAD_ENET2_TXC__ENET1_RGMII_TXC		0x5fe
> +			MX93_PAD_ENET2_TX_CTL__ENET1_RGMII_TX_CTL	0x57e
> +		>;
> +	};
> +
> +	pinctrl_flexcan1: flexcan1grp {
> +		fsl,pins = <
> +			MX93_PAD_PDM_CLK__CAN1_TX                       0x139e
> +			MX93_PAD_PDM_BIT_STREAM0__CAN1_RX               0x139e
> +		>;
> +	};
> +
> +	pinctrl_lpi2c1: lpi2c1grp {
> +		fsl,pins = <
> +			MX93_PAD_I2C1_SCL__LPI2C1_SCL			0x40000b9e
> +			MX93_PAD_I2C1_SDA__LPI2C1_SDA			0x40000b9e
> +		>;
> +	};
> +
> +	pinctrl_lpi2c1_gpio: lpi2c1gpiogrp {
> +		fsl,pins = <
> +			MX93_PAD_I2C1_SCL__GPIO1_IO00			0x31e
> +			MX93_PAD_I2C1_SDA__GPIO1_IO01			0x31e
> +		>;
> +	};
> +
> +	pinctrl_lpi2c5: lpi2c5grp {
> +		fsl,pins = <
> +			MX93_PAD_GPIO_IO23__LPI2C5_SCL			0x40000b9e
> +			MX93_PAD_GPIO_IO22__LPI2C5_SDA			0x40000b9e
> +		>;
> +	};
> +
> +	pinctrl_lpi2c5_gpio: lpi2c5gpiogrp {
> +		fsl,pins = <
> +			MX93_PAD_GPIO_IO23__GPIO2_IO23			0x31e
> +			MX93_PAD_GPIO_IO22__GPIO2_IO22			0x31e
> +		>;
> +	};
> +
> +	pinctrl_pca9534: pca9534grp {
> +		fsl,pins = <
> +			MX93_PAD_CCM_CLKO1__GPIO3_IO26		0x31e
> +		>;
> +	};
> +
> +	pinctrl_uart1: uart1grp {
> +		fsl,pins = <
> +			MX93_PAD_UART1_RXD__LPUART1_RX			0x31e
> +			MX93_PAD_UART1_TXD__LPUART1_TX			0x31e
> +		>;
> +	};
> +
> +	pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
> +		fsl,pins = <
> +			MX93_PAD_GPIO_IO18__GPIO2_IO18		0x31e
> +		>;
> +	};
> +
> +	pinctrl_usdhc2: usdhc2grp {
> +		fsl,pins = <
> +			MX93_PAD_SD2_CLK__USDHC2_CLK		0x15fe
> +			MX93_PAD_SD2_CMD__USDHC2_CMD		0x13fe
> +			MX93_PAD_SD2_DATA0__USDHC2_DATA0	0x13fe
> +			MX93_PAD_SD2_DATA1__USDHC2_DATA1	0x13fe
> +			MX93_PAD_SD2_DATA2__USDHC2_DATA2	0x13fe
> +			MX93_PAD_SD2_DATA3__USDHC2_DATA3	0x13fe
> +			MX93_PAD_SD2_VSELECT__USDHC2_VSELECT	0x51e
> +		>;
> +	};
> +
> +	pinctrl_usdhc2_gpio: usdhc2gpiogrp {
> +		fsl,pins = <
> +			MX93_PAD_SD2_CD_B__GPIO3_IO00		0x31e
> +		>;
> +	};
> +};
> +
> +&lpi2c1 {
> +	clock-frequency = <400000>;
> +	pinctrl-names = "default", "sleep", "gpio";
> +	pinctrl-0 = <&pinctrl_lpi2c1>;
> +	pinctrl-1 = <&pinctrl_lpi2c1_gpio>;
> +	pinctrl-2 = <&pinctrl_lpi2c1_gpio>;
> +	scl-gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
> +	sda-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +
> +	/* DS1337 RTC module */
> +	rtc@68 {
> +		compatible = "dallas,ds1337";
> +		reg = <0x68>;
> +	};
> +};
> +
> +&lpi2c5 {
> +	clock-frequency = <400000>;
> +	pinctrl-names = "default", "sleep", "gpio";
> +	pinctrl-0 = <&pinctrl_lpi2c5>;
> +	pinctrl-1 = <&pinctrl_lpi2c5_gpio>;
> +	pinctrl-2 = <&pinctrl_lpi2c5_gpio>;
> +	scl-gpios = <&gpio2 23 GPIO_ACTIVE_HIGH>;
> +	sda-gpios = <&gpio2 22 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +
> +	pca9534: gpio@20 {
> +		compatible = "nxp,pca9534";
> +		reg = <0x20>;
> +		gpio-controller;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_pca9534>;
> +		interrupt-parent = <&gpio3>;
> +		interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
> +		#gpio-cells = <2>;
> +		wakeup-source;
> +	};
there are neither gpio-line-names defined for this GPIO expander nor the
SOC. Are there no GPIOs which can be accessed from userspace?

Best regards
Mathieu Othacehe Dec. 29, 2023, 1 p.m. UTC | #2
Hello Stefan,

> there are neither gpio-line-names defined for this GPIO expander nor the
> SOC. Are there no GPIOs which can be accessed from userspace?

The carrier board schematic is here:
https://www.variscite.com/wp-content/uploads/2023/01/symphony-board_VAR-SOM-MX93.pdf

All the pin headers are mapped to specific functions. On the other,
already mainlined device-trees, that are based on the same "Symphony"
carrier board, there are however gpio-keys for three buttons:


	gpio-keys {
		compatible = "gpio-keys";

		key-back {
			label = "Back";
			gpios = <&pca9534 1 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_BACK>;
		};

		key-home {
			label = "Home";
			gpios = <&pca9534 2 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_HOME>;
		};

		key-menu {
			label = "Menu";
			gpios = <&pca9534 3 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_MENU>;
		};
	};

I can add that in v5.

Thanks,

Mathieu
Stefan Wahren Dec. 29, 2023, 2:08 p.m. UTC | #3
Hi Mathieu,

Am 29.12.23 um 14:00 schrieb Mathieu Othacehe:
> Hello Stefan,
>
>> there are neither gpio-line-names defined for this GPIO expander nor the
>> SOC. Are there no GPIOs which can be accessed from userspace?
> The carrier board schematic is here:
> https://www.variscite.com/wp-content/uploads/2023/01/symphony-board_VAR-SOM-MX93.pdf
Thanks this helps.
>
> All the pin headers are mapped to specific functions. On the other,
> already mainlined device-trees, that are based on the same "Symphony"
> carrier board, there are however gpio-keys for three buttons:
>
>
> 	gpio-keys {
> 		compatible = "gpio-keys";
>
> 		key-back {
> 			label = "Back";
> 			gpios = <&pca9534 1 GPIO_ACTIVE_LOW>;
> 			linux,code = <KEY_BACK>;
> 		};
>
> 		key-home {
> 			label = "Home";
> 			gpios = <&pca9534 2 GPIO_ACTIVE_LOW>;
> 			linux,code = <KEY_HOME>;
> 		};
>
> 		key-menu {
> 			label = "Menu";
> 			gpios = <&pca9534 3 GPIO_ACTIVE_LOW>;
> 			linux,code = <KEY_MENU>;
> 		};
> 	};
>
> I can add that in v5.
yes please.

I also saw in the other Symphony DTS a LED for heartbeat. Is it usable, too?

According to the datasheet the SOM expose 7 UARTs, but only the debug
UART is enable. What is the reason for this?

Btw the commit log mentions a Wifi (via SDIO?) and audio interface. This
is currently not supported by Linux?

Thanks
>
> Thanks,
>
> Mathieu
Mathieu Othacehe Dec. 29, 2023, 4:48 p.m. UTC | #4
Hey,

> I also saw in the other Symphony DTS a LED for heartbeat. Is it usable, too?

Yes, I will add it to in v5.

> According to the datasheet the SOM expose 7 UARTs, but only the debug
> UART is enable. What is the reason for this?

So those 7 UARTs are:

UART1: console
UART2: used by the microphone
UART3: used by the resistive touch
UART4: used by the ethernet/resistive touch
UART5: on J18.4,6,8,10 (used by BT)
UART6: on J18.7 and J18.9 (available)
UART7: on J18.3 and J18.5 (used by the M33 firmware)

I will enable UART6, and add a mention about UART7, something like:

/* J18.7, J18.9 */
&lpuart6 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_uart6>;
	status = "okay";
};

/* J18.3, J18.5 - used by M33 firmware */
&lpuart7 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_uart7>;
	status = "disabled";
};

> Btw the commit log mentions a Wifi (via SDIO?) and audio interface. This
> is currently not supported by Linux?

I am not sure about that, and I would prefer to study that a bit later
on if that's OK :) I can remove it from the commit log as this is
misleading as not already supported / tested.

Thanks,

Mathieu
Stefan Wahren Dec. 29, 2023, 5:17 p.m. UTC | #5
Hi,

Am 29.12.23 um 17:48 schrieb Mathieu Othacehe:
> Hey,
>
>> I also saw in the other Symphony DTS a LED for heartbeat. Is it usable, too?
> Yes, I will add it to in v5.
>
>> According to the datasheet the SOM expose 7 UARTs, but only the debug
>> UART is enable. What is the reason for this?
> So those 7 UARTs are:
>
> UART1: console
> UART2: used by the microphone
> UART3: used by the resistive touch
> UART4: used by the ethernet/resistive touch
> UART5: on J18.4,6,8,10 (used by BT)
> UART6: on J18.7 and J18.9 (available)
> UART7: on J18.3 and J18.5 (used by the M33 firmware)
>
> I will enable UART6, and add a mention about UART7, something like:
>
> /* J18.7, J18.9 */
> &lpuart6 {
> 	pinctrl-names = "default";
> 	pinctrl-0 = <&pinctrl_uart6>;
> 	status = "okay";
> };
>
> /* J18.3, J18.5 - used by M33 firmware */
> &lpuart7 {
> 	pinctrl-names = "default";
> 	pinctrl-0 = <&pinctrl_uart7>;
> 	status = "disabled";
> };
in case this is used by the M33 firmware, this applies to all i.MX93 so
we don't need this. Just enable UART6 and keep UART7.
>> Btw the commit log mentions a Wifi (via SDIO?) and audio interface. This
>> is currently not supported by Linux?
> I am not sure about that, and I would prefer to study that a bit later
> on if that's OK :) I can remove it from the commit log as this is
> misleading as not already supported / tested.
This sounds good. No need to have it all at first.
>
> Thanks,
>
> Mathieu
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 2e027675d7bb..a6f1700961e3 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -203,6 +203,7 @@  dtb-$(CONFIG_ARCH_MXC) += imx8ulp-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxca.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxla.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx93-var-som-symphony.dtb
 
 imx8mm-venice-gw72xx-0x-imx219-dtbs	:= imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-imx219.dtbo
 imx8mm-venice-gw72xx-0x-rpidsi-dtbs	:= imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rpidsi.dtbo
diff --git a/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
new file mode 100644
index 000000000000..3b7a01fb1b51
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
@@ -0,0 +1,303 @@ 
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2021 NXP
+ * Copyright 2023 Variscite Ltd.
+ */
+
+/dts-v1/;
+
+#include "imx93-var-som.dtsi"
+
+/{
+	model = "Variscite VAR-SOM-MX93 on Symphony evaluation board";
+	compatible = "variscite,var-som-mx93-symphony",
+		     "variscite,var-som-mx93", "fsl,imx93";
+
+	aliases {
+		ethernet0 = &eqos;
+		ethernet1 = &fec;
+	};
+
+	chosen {
+		stdout-path = &lpuart1;
+	};
+
+	/*
+	 * Needed only for Symphony <= v1.5
+	 */
+	reg_fec_phy: regulator-fec-phy {
+		compatible = "regulator-fixed";
+		regulator-name = "fec-phy";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-enable-ramp-delay = <20000>;
+		gpio = <&pca9534 7 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 18 GPIO_ACTIVE_HIGH>;
+		off-on-delay-us = <20000>;
+		enable-active-high;
+	};
+
+	reg_vref_1v8: regulator-adc-vref {
+		compatible = "regulator-fixed";
+		regulator-name = "vref_1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		ethosu_mem: ethosu-region@88000000 {
+			compatible = "shared-dma-pool";
+			reusable;
+			reg = <0x0 0x88000000 0x0 0x8000000>;
+		};
+
+		vdev0vring0: vdev0vring0@87ee0000 {
+			reg = <0 0x87ee0000 0 0x8000>;
+			no-map;
+		};
+
+		vdev0vring1: vdev0vring1@87ee8000 {
+			reg = <0 0x87ee8000 0 0x8000>;
+			no-map;
+		};
+
+		vdev1vring0: vdev1vring0@87ef0000 {
+			reg = <0 0x87ef0000 0 0x8000>;
+			no-map;
+		};
+
+		vdev1vring1: vdev1vring1@87ef8000 {
+			reg = <0 0x87ef8000 0 0x8000>;
+			no-map;
+		};
+
+		rsc_table: rsc-table@2021f000 {
+			reg = <0 0x2021f000 0 0x1000>;
+			no-map;
+		};
+
+		vdevbuffer: vdevbuffer@87f00000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x87f00000 0 0x100000>;
+			no-map;
+		};
+
+		ele_reserved: ele-reserved@87de0000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x87de0000 0 0x100000>;
+			no-map;
+		};
+	};
+};
+
+/* Use external instead of internal RTC*/
+&bbnsm_rtc {
+	status = "disabled";
+};
+
+&eqos {
+	mdio {
+		ethphy1: ethernet-phy@5 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <5>;
+			qca,disable-smarteee;
+			eee-broken-1000t;
+			reset-gpios = <&pca9534 5 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <10000>;
+			reset-deassert-us = <20000>;
+			vddio-supply = <&vddio1>;
+
+			vddio1: vddio-regulator {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+		};
+	};
+};
+
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec>;
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy1>;
+	phy-supply = <&reg_fec_phy>;
+	status = "okay";
+};
+
+&flexcan1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan1>;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_fec: fecgrp {
+		fsl,pins = <
+			MX93_PAD_ENET2_RD0__ENET1_RGMII_RD0		0x57e
+			MX93_PAD_ENET2_RD1__ENET1_RGMII_RD1		0x57e
+			MX93_PAD_ENET2_RD2__ENET1_RGMII_RD2		0x57e
+			MX93_PAD_ENET2_RD3__ENET1_RGMII_RD3		0x57e
+			MX93_PAD_ENET2_RXC__ENET1_RGMII_RXC		0x5fe
+			MX93_PAD_ENET2_RX_CTL__ENET1_RGMII_RX_CTL	0x57e
+			MX93_PAD_ENET2_TD0__ENET1_RGMII_TD0		0x57e
+			MX93_PAD_ENET2_TD1__ENET1_RGMII_TD1		0x57e
+			MX93_PAD_ENET2_TD2__ENET1_RGMII_TD2		0x57e
+			MX93_PAD_ENET2_TD3__ENET1_RGMII_TD3		0x57e
+			MX93_PAD_ENET2_TXC__ENET1_RGMII_TXC		0x5fe
+			MX93_PAD_ENET2_TX_CTL__ENET1_RGMII_TX_CTL	0x57e
+		>;
+	};
+
+	pinctrl_flexcan1: flexcan1grp {
+		fsl,pins = <
+			MX93_PAD_PDM_CLK__CAN1_TX                       0x139e
+			MX93_PAD_PDM_BIT_STREAM0__CAN1_RX               0x139e
+		>;
+	};
+
+	pinctrl_lpi2c1: lpi2c1grp {
+		fsl,pins = <
+			MX93_PAD_I2C1_SCL__LPI2C1_SCL			0x40000b9e
+			MX93_PAD_I2C1_SDA__LPI2C1_SDA			0x40000b9e
+		>;
+	};
+
+	pinctrl_lpi2c1_gpio: lpi2c1gpiogrp {
+		fsl,pins = <
+			MX93_PAD_I2C1_SCL__GPIO1_IO00			0x31e
+			MX93_PAD_I2C1_SDA__GPIO1_IO01			0x31e
+		>;
+	};
+
+	pinctrl_lpi2c5: lpi2c5grp {
+		fsl,pins = <
+			MX93_PAD_GPIO_IO23__LPI2C5_SCL			0x40000b9e
+			MX93_PAD_GPIO_IO22__LPI2C5_SDA			0x40000b9e
+		>;
+	};
+
+	pinctrl_lpi2c5_gpio: lpi2c5gpiogrp {
+		fsl,pins = <
+			MX93_PAD_GPIO_IO23__GPIO2_IO23			0x31e
+			MX93_PAD_GPIO_IO22__GPIO2_IO22			0x31e
+		>;
+	};
+
+	pinctrl_pca9534: pca9534grp {
+		fsl,pins = <
+			MX93_PAD_CCM_CLKO1__GPIO3_IO26		0x31e
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX93_PAD_UART1_RXD__LPUART1_RX			0x31e
+			MX93_PAD_UART1_TXD__LPUART1_TX			0x31e
+		>;
+	};
+
+	pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
+		fsl,pins = <
+			MX93_PAD_GPIO_IO18__GPIO2_IO18		0x31e
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX93_PAD_SD2_CLK__USDHC2_CLK		0x15fe
+			MX93_PAD_SD2_CMD__USDHC2_CMD		0x13fe
+			MX93_PAD_SD2_DATA0__USDHC2_DATA0	0x13fe
+			MX93_PAD_SD2_DATA1__USDHC2_DATA1	0x13fe
+			MX93_PAD_SD2_DATA2__USDHC2_DATA2	0x13fe
+			MX93_PAD_SD2_DATA3__USDHC2_DATA3	0x13fe
+			MX93_PAD_SD2_VSELECT__USDHC2_VSELECT	0x51e
+		>;
+	};
+
+	pinctrl_usdhc2_gpio: usdhc2gpiogrp {
+		fsl,pins = <
+			MX93_PAD_SD2_CD_B__GPIO3_IO00		0x31e
+		>;
+	};
+};
+
+&lpi2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default", "sleep", "gpio";
+	pinctrl-0 = <&pinctrl_lpi2c1>;
+	pinctrl-1 = <&pinctrl_lpi2c1_gpio>;
+	pinctrl-2 = <&pinctrl_lpi2c1_gpio>;
+	scl-gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
+	sda-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+
+	/* DS1337 RTC module */
+	rtc@68 {
+		compatible = "dallas,ds1337";
+		reg = <0x68>;
+	};
+};
+
+&lpi2c5 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default", "sleep", "gpio";
+	pinctrl-0 = <&pinctrl_lpi2c5>;
+	pinctrl-1 = <&pinctrl_lpi2c5_gpio>;
+	pinctrl-2 = <&pinctrl_lpi2c5_gpio>;
+	scl-gpios = <&gpio2 23 GPIO_ACTIVE_HIGH>;
+	sda-gpios = <&gpio2 22 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+
+	pca9534: gpio@20 {
+		compatible = "nxp,pca9534";
+		reg = <0x20>;
+		gpio-controller;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pca9534>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+		#gpio-cells = <2>;
+		wakeup-source;
+	};
+};
+
+/* Console */
+&lpuart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+/* SD */
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-1 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-2 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
+	cd-gpios = <&gpio3 00 GPIO_ACTIVE_LOW>;
+	vmmc-supply = <&reg_usdhc2_vmmc>;
+	bus-width = <4>;
+	status = "okay";
+	no-sdio;
+	no-mmc;
+};
+
+/* Watchdog */
+&wdog3 {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/freescale/imx93-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx93-var-som.dtsi
new file mode 100644
index 000000000000..6c77b886666b
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx93-var-som.dtsi
@@ -0,0 +1,111 @@ 
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 NXP
+ * Copyright 2023 Variscite Ltd.
+ */
+
+/dts-v1/;
+
+#include "imx93.dtsi"
+
+/{
+	model = "Variscite VAR-SOM-MX93 module";
+	compatible = "variscite,var-som-mx93", "fsl,imx93";
+
+	mmc_pwrseq: mmc-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		post-power-on-delay-ms = <100>;
+		power-off-delay-us = <10000>;
+		reset-gpios = <&gpio4 14 GPIO_ACTIVE_LOW>,	/* WIFI_RESET */
+			      <&gpio3 7 GPIO_ACTIVE_LOW>;	/* WIFI_PWR_EN */
+	};
+
+	reg_eqos_phy: regulator-eqos-phy {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_eqos_phy>;
+		regulator-name = "eth_phy_pwr";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		startup-delay-us = <100000>;
+		regulator-always-on;
+	};
+};
+
+&eqos {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_eqos>;
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy0>;
+	phy-supply = <&reg_eqos_phy>;
+	status = "okay";
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clock-frequency = <1000000>;
+
+		ethphy0: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0>;
+			eee-broken-1000t;
+		};
+	};
+};
+
+&iomuxc {
+	pinctrl_eqos: eqosgrp {
+		fsl,pins = <
+			MX93_PAD_ENET1_MDC__ENET_QOS_MDC			0x57e
+			MX93_PAD_ENET1_MDIO__ENET_QOS_MDIO			0x57e
+			MX93_PAD_ENET1_RD0__ENET_QOS_RGMII_RD0			0x57e
+			MX93_PAD_ENET1_RD1__ENET_QOS_RGMII_RD1			0x57e
+			MX93_PAD_ENET1_RD2__ENET_QOS_RGMII_RD2			0x57e
+			MX93_PAD_ENET1_RD3__ENET_QOS_RGMII_RD3			0x57e
+			MX93_PAD_ENET1_RXC__CCM_ENET_QOS_CLOCK_GENERATE_RX_CLK	0x5fe
+			MX93_PAD_ENET1_RX_CTL__ENET_QOS_RGMII_RX_CTL		0x57e
+			MX93_PAD_ENET1_TD0__ENET_QOS_RGMII_TD0			0x57e
+			MX93_PAD_ENET1_TD1__ENET_QOS_RGMII_TD1			0x57e
+			MX93_PAD_ENET1_TD2__ENET_QOS_RGMII_TD2			0x57e
+			MX93_PAD_ENET1_TD3__ENET_QOS_RGMII_TD3			0x57e
+			MX93_PAD_ENET1_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK	0x5fe
+			MX93_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL		0x57e
+		>;
+	};
+
+	pinctrl_reg_eqos_phy: regeqosgrp {
+		fsl,pins = <
+			MX93_PAD_UART2_TXD__GPIO1_IO07			0x51e
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX93_PAD_SD1_CLK__USDHC1_CLK		0x15fe
+			MX93_PAD_SD1_CMD__USDHC1_CMD		0x13fe
+			MX93_PAD_SD1_DATA0__USDHC1_DATA0	0x13fe
+			MX93_PAD_SD1_DATA1__USDHC1_DATA1	0x13fe
+			MX93_PAD_SD1_DATA2__USDHC1_DATA2	0x13fe
+			MX93_PAD_SD1_DATA3__USDHC1_DATA3	0x13fe
+			MX93_PAD_SD1_DATA4__USDHC1_DATA4	0x13fe
+			MX93_PAD_SD1_DATA5__USDHC1_DATA5	0x13fe
+			MX93_PAD_SD1_DATA6__USDHC1_DATA6	0x13fe
+			MX93_PAD_SD1_DATA7__USDHC1_DATA7	0x13fe
+			MX93_PAD_SD1_STROBE__USDHC1_STROBE	0x15fe
+		>;
+	};
+};
+
+/* eMMC */
+&usdhc1 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	pinctrl-1 = <&pinctrl_usdhc1>;
+	pinctrl-2 = <&pinctrl_usdhc1>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};