Re: [PATCH v3 2/2] arm64: dts: imx93: Add phyBOARD-Segin-i.MX93 support

Stefan Wahren
2024-01-19T10:12:11Z

Hi Mathieu,

[dropped upstream@list.phytec.de because of unavailability]

Am 19.01.24 um 10:28 schrieb Mathieu Othacehe:
> Add basic support for phyBOARD-Segin-i.MX93.
> Main features are:
> * SD-Card
> * UART
> * I2C
> * eMMC
>
> Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
> ---
> arch/arm64/boot/dts/freescale/Makefile | 1 +
> .../dts/freescale/imx93-phyboard-segin.dts | 119 ++++++++++++++++++
> .../boot/dts/freescale/imx93-phycore-som.dtsi | 56 +++++++++
> 3 files changed, 176 insertions(+)
> create mode 100644 arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
> create mode 100644 arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
>
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index 2e027675d7bb..65db918c821c 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -201,6 +201,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8qxp-colibri-iris-v2.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8qxp-mek.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8ulp-evk.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-segin.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxca.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxla.dtb
>
> diff --git a/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts b/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
> new file mode 100644
> index 000000000000..b256c5e42550
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
> @@ -0,0 +1,119 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (C) 2023 PHYTEC Messtechnik GmbH
> + * Christoph Stoidner <c.stoidner@phytec.de>
> + * Copyright (C) 2024 Mathieu Othacehe <m.othacehe@gmail.com>
> + *
> + */
> +/dts-v1/;
> +
> +#include "imx93-phycore-som.dtsi"
> +
> +/{
> + model = "PHYTEC phyBOARD-Segin-i.MX93";
> + compatible = "phytec,imx93-phyboard-segin", "phytec,imx93-phycore-som",
> + "fsl,imx93";
> +
> + chosen {
> + stdout-path = &lpuart1;
> + };
> +
> + reg_usdhc2_vmmc: regulator-usdhc2 {
> + compatible = "regulator-fixed";
> + enable-active-high;
> + gpio = <&gpio3 7 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_reg_usdhc2_vmmc>;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "VSD_3V3";
> + };
> +};
> +
> +/* Console */
> +&lpuart1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart1>;
> + status = "okay";
> +};
> +
> +/* eMMC */
> +&usdhc1 {
> + no-1-8-v;
> +};
> +
> +/* SD-Card */
> +&usdhc2 {
> + pinctrl-names = "default", "state_100mhz", "state_200mhz";
> + pinctrl-0 = <&pinctrl_usdhc2_default>, <&pinctrl_usdhc2_cd>;
> + pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_cd>;
> + pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_cd>;
> + bus-width = <4>;
> + cd-gpios = <&gpio3 00 GPIO_ACTIVE_LOW>;
just a nit:

s/00/0/
> + no-mmc;
> + no-sdio;
> + vmmc-supply = <&reg_usdhc2_vmmc>;
> + status = "okay";
> +};
> +
>

According to the documentation there are GPIOs accessible. Those on the
expansion header X16 could be named via gpio-line-name this makes it
easier to access via libgpiod. Also there seems to be LEDs and switches
on the phyBOARD.

Best regards