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

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Message-ID: <282689a1-a189-4320-9d70-c6d38dc56d9d@gmx.net>
Date: Fri, 19 Jan 2024 11:11:39 +0100
From: Stefan Wahren <wahrenst@....net>
To: Mathieu Othacehe <othacehe@....org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, NXP Linux Team <linux-imx@....com>,
 Li Yang <leoyang.li@....com>, Primoz Fiser <primoz.fiser@...ik.com>,
 Christoph Stoidner <c.stoidner@...tec.de>, Wadim Egorov <w.egorov@...tec.de>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 2/2] arm64: dts: imx93: Add phyBOARD-Segin-i.MX93
 support

Hi Mathieu,

[dropped upstream@...t.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@....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@...tec.de>
> + * Copyright (C) 2024 Mathieu Othacehe <m.othacehe@...il.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