Re: [PATCH v2 4/4] arm64: dts: freescale: Add minimal dts support for imx943 evk

Frank Li
2025-03-04T15:27:47Z

On Tue, Mar 04, 2025 at 05:31:27PM +0800, Jacky Bai wrote:
> Add the minimal board dts support for i.MX943 EVK. Only the
> console uart, SD & eMMC are enabled for linux basic boot.
>
> Signed-off-by: Jacky Bai <ping.bai@nxp.com>

Reviewed-by: Frank Li <Frank.Li@nxp.com>

> ---
> - v2 changes:
> - newly added for board dts
> ---
> arch/arm64/boot/dts/freescale/Makefile | 1 +
> arch/arm64/boot/dts/freescale/imx943-evk.dts | 196 +++++++++++++++++++
> 2 files changed, 197 insertions(+)
> create mode 100644 arch/arm64/boot/dts/freescale/imx943-evk.dts
>
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index 839432153cc7..02863c09bb8b 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -282,6 +282,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxca.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxla.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx93-var-som-symphony.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx943-evk.dtb
>
> imx8mm-kontron-dl-dtbs := imx8mm-kontron-bl.dtb imx8mm-kontron-dl.dtbo
>
> diff --git a/arch/arm64/boot/dts/freescale/imx943-evk.dts b/arch/arm64/boot/dts/freescale/imx943-evk.dts
> new file mode 100644
> index 000000000000..d4a204eaf5e5
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx943-evk.dts
> @@ -0,0 +1,196 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright 2024-2025 NXP
> + */
> +
> +/dts-v1/;
> +
> +#include "imx943.dtsi"
> +
> +/ {
> + compatible = "fsl,imx943-evk", "fsl,imx94";
> + model = "NXP i.MX943 EVK board";
> +
> + aliases {
> + mmc0 = &usdhc1;
> + mmc1 = &usdhc2;
> + serial0 = &lpuart1;
> + };
> +
> + chosen {
> + stdout-path = &lpuart1;
> + };
> +
> + reg_usdhc2_vmmc: regulator-usdhc2 {
> + compatible = "regulator-fixed";
> + off-on-delay-us = <12000>;
> + pinctrl-0 = <&pinctrl_reg_usdhc2_vmmc>;
> + pinctrl-names = "default";
> + regulator-max-microvolt = <3300000>;
> + regulator-min-microvolt = <3300000>;
> + regulator-name = "VDD_SD2_3V3";
> + gpio = <&gpio4 27 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + };
> +
> + reserved-memory {
> + ranges;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + linux,cma {
> + compatible = "shared-dma-pool";
> + alloc-ranges = <0 0x80000000 0 0x7f000000>;
> + reusable;
> + size = <0 0x10000000>;
> + linux,cma-default;
> + };
> + };
> +
> + memory@80000000 {
> + reg = <0x0 0x80000000 0x0 0x80000000>;
> + device_type = "memory";
> + };
> +};
> +
> +&lpuart1 {
> + pinctrl-0 = <&pinctrl_uart1>;
> + pinctrl-names = "default";
> + status = "okay";
> +};
> +
> +&scmi_iomuxc {
> + pinctrl_uart1: uart1grp {
> + fsl,pins = <
> + IMX94_PAD_UART1_TXD__LPUART1_TX 0x31e
> + IMX94_PAD_UART1_RXD__LPUART1_RX 0x31e
> + >;
> + };
> +
> + pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
> + fsl,pins = <
> + IMX94_PAD_SD1_CLK__USDHC1_CLK 0x158e
> + IMX94_PAD_SD1_CMD__USDHC1_CMD 0x138e
> + IMX94_PAD_SD1_DATA0__USDHC1_DATA0 0x138e
> + IMX94_PAD_SD1_DATA1__USDHC1_DATA1 0x138e
> + IMX94_PAD_SD1_DATA2__USDHC1_DATA2 0x138e
> + IMX94_PAD_SD1_DATA3__USDHC1_DATA3 0x138e
> + IMX94_PAD_SD1_DATA4__USDHC1_DATA4 0x138e
> + IMX94_PAD_SD1_DATA5__USDHC1_DATA5 0x138e
> + IMX94_PAD_SD1_DATA6__USDHC1_DATA6 0x138e
> + IMX94_PAD_SD1_DATA7__USDHC1_DATA7 0x138e
> + IMX94_PAD_SD1_STROBE__USDHC1_STROBE 0x158e
> + >;
> + };
> +
> + pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
> + fsl,pins = <
> + IMX94_PAD_SD1_CLK__USDHC1_CLK 0x15fe
> + IMX94_PAD_SD1_CMD__USDHC1_CMD 0x13fe
> + IMX94_PAD_SD1_DATA0__USDHC1_DATA0 0x13fe
> + IMX94_PAD_SD1_DATA1__USDHC1_DATA1 0x13fe
> + IMX94_PAD_SD1_DATA2__USDHC1_DATA2 0x13fe
> + IMX94_PAD_SD1_DATA3__USDHC1_DATA3 0x13fe
> + IMX94_PAD_SD1_DATA4__USDHC1_DATA4 0x13fe
> + IMX94_PAD_SD1_DATA5__USDHC1_DATA5 0x13fe
> + IMX94_PAD_SD1_DATA6__USDHC1_DATA6 0x13fe
> + IMX94_PAD_SD1_DATA7__USDHC1_DATA7 0x13fe
> + IMX94_PAD_SD1_STROBE__USDHC1_STROBE 0x15fe
> + >;
> + };
> +
> + pinctrl_usdhc1: usdhc1grp {
> + fsl,pins = <
> + IMX94_PAD_SD1_CLK__USDHC1_CLK 0x158e
> + IMX94_PAD_SD1_CMD__USDHC1_CMD 0x138e
> + IMX94_PAD_SD1_DATA0__USDHC1_DATA0 0x138e
> + IMX94_PAD_SD1_DATA1__USDHC1_DATA1 0x138e
> + IMX94_PAD_SD1_DATA2__USDHC1_DATA2 0x138e
> + IMX94_PAD_SD1_DATA3__USDHC1_DATA3 0x138e
> + IMX94_PAD_SD1_DATA4__USDHC1_DATA4 0x138e
> + IMX94_PAD_SD1_DATA5__USDHC1_DATA5 0x138e
> + IMX94_PAD_SD1_DATA6__USDHC1_DATA6 0x138e
> + IMX94_PAD_SD1_DATA7__USDHC1_DATA7 0x138e
> + IMX94_PAD_SD1_STROBE__USDHC1_STROBE 0x158e
> + >;
> + };
> +
> + pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
> + fsl,pins = <
> + IMX94_PAD_SD2_CLK__USDHC2_CLK 0x158e
> + IMX94_PAD_SD2_CMD__USDHC2_CMD 0x138e
> + IMX94_PAD_SD2_DATA0__USDHC2_DATA0 0x138e
> + IMX94_PAD_SD2_DATA1__USDHC2_DATA1 0x138e
> + IMX94_PAD_SD2_DATA2__USDHC2_DATA2 0x138e
> + IMX94_PAD_SD2_DATA3__USDHC2_DATA3 0x138e
> + IMX94_PAD_SD2_VSELECT__USDHC2_VSELECT 0x51e
> + >;
> + };
> +
> + pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
> + fsl,pins = <
> + IMX94_PAD_SD2_CLK__USDHC2_CLK 0x15fe
> + IMX94_PAD_SD2_CMD__USDHC2_CMD 0x13fe
> + IMX94_PAD_SD2_DATA0__USDHC2_DATA0 0x13fe
> + IMX94_PAD_SD2_DATA1__USDHC2_DATA1 0x13fe
> + IMX94_PAD_SD2_DATA2__USDHC2_DATA2 0x13fe
> + IMX94_PAD_SD2_DATA3__USDHC2_DATA3 0x13fe
> + IMX94_PAD_SD2_VSELECT__USDHC2_VSELECT 0x51e
> + >;
> + };
> +
> + pinctrl_usdhc2_gpio: usdhc2gpiogrp {
> + fsl,pins = <
> + IMX94_PAD_SD2_CD_B__GPIO4_IO20 0x31e
> + >;
> + };
> +
> + pinctrl_usdhc2: usdhc2grp {
> + fsl,pins = <
> + IMX94_PAD_SD2_CLK__USDHC2_CLK 0x158e
> + IMX94_PAD_SD2_CMD__USDHC2_CMD 0x138e
> + IMX94_PAD_SD2_DATA0__USDHC2_DATA0 0x138e
> + IMX94_PAD_SD2_DATA1__USDHC2_DATA1 0x138e
> + IMX94_PAD_SD2_DATA2__USDHC2_DATA2 0x138e
> + IMX94_PAD_SD2_DATA3__USDHC2_DATA3 0x138e
> + IMX94_PAD_SD2_VSELECT__USDHC2_VSELECT 0x51e
> + >;
> + };
> +
> + pinctrl_reg_usdhc2_vmmc: usdhc2regvmmcgrp {
> + fsl,pins = <
> + IMX94_PAD_SD2_RESET_B__GPIO4_IO27 0x31e
> + >;
> + };
> +};
> +
> +&usdhc1 {
> + pinctrl-0 = <&pinctrl_usdhc1>;
> + pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
> + pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
> + pinctrl-3 = <&pinctrl_usdhc1>;
> + pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
> + bus-width = <8>;
> + non-removable;
> + no-sdio;
> + no-sd;
> + status = "okay";
> +};
> +
> +&usdhc2 {
> + pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
> + pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
> + pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
> + pinctrl-3 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
> + pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
> + bus-width = <4>;
> + cd-gpios = <&gpio4 20 GPIO_ACTIVE_LOW>;
> + vmmc-supply = <&reg_usdhc2_vmmc>;
> + fsl,cd-gpio-wakeup-disable;
> + status = "okay";
> +};
> +
> +&wdog3 {
> + fsl,ext-reset-output;
> + status = "okay";
> +};
> --
> 2.34.1
>