linux-kernel - Re: [PATCH] ARM: dts: lan966x: add support for pcb8290

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Message-ID: <8e6c780e-28ee-1f37-c14c-f0ca5f590743@microchip.com>
Date:   Tue, 23 Aug 2022 07:11:03 +0000
From:   <Claudiu.Beznea@...rochip.com>
To:     <Horatiu.Vultur@...rochip.com>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <arnd@...db.de>, <olof@...om.net>, <soc@...nel.org>,
        <Nicolas.Ferre@...rochip.com>, <UNGLinuxDriver@...rochip.com>,
        <maxime.chevallier@...tlin.com>
Subject: Re: [PATCH] ARM: dts: lan966x: add support for pcb8290

On 17.08.2022 22:00, Horatiu Vultur wrote:
> Add basic support for pcb8290. It has 8 lan8814 PHYS on the external
> MDIO bus and no SFP ports.
> 
> Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
> ---
>  arch/arm/boot/dts/Makefile            |   1 +
>  arch/arm/boot/dts/lan966x-pcb8290.dts | 169 ++++++++++++++++++++++++++
>  2 files changed, 170 insertions(+)
>  create mode 100644 arch/arm/boot/dts/lan966x-pcb8290.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 05d8aef6e5d2..595e870750cd 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -788,6 +788,7 @@ dtb-$(CONFIG_SOC_IMXRT) += \
>  dtb-$(CONFIG_SOC_LAN966) += \
>  	lan966x-kontron-kswitch-d10-mmt-6g-2gs.dtb \
>  	lan966x-kontron-kswitch-d10-mmt-8g.dtb \
> +	lan966x-pcb8290.dtb \
>  	lan966x-pcb8291.dtb \
>  	lan966x-pcb8309.dtb
>  dtb-$(CONFIG_SOC_LS1021A) += \
> diff --git a/arch/arm/boot/dts/lan966x-pcb8290.dts b/arch/arm/boot/dts/lan966x-pcb8290.dts
> new file mode 100644
> index 000000000000..ea5267aca6b4
> --- /dev/null
> +++ b/arch/arm/boot/dts/lan966x-pcb8290.dts
> @@ -0,0 +1,169 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * lan966x_pcb8290.dts - Device Tree file for PCB8290
> + */
> +/dts-v1/;
> +#include "lan966x.dtsi"
> +#include "dt-bindings/phy/phy-lan966x-serdes.h"
> +
> +/ {
> +	model = "Microchip EVB LAN9668";
> +	compatible = "microchip,lan9668-pcb8290", "microchip,lan9668", "microchip,lan966";
> +
> +	gpio-restart {
> +		compatible = "gpio-restart";
> +		gpios = <&gpio 56 GPIO_ACTIVE_LOW>;
> +		priority = <200>;
> +	};
> +};
> +
> +&gpio {
> +	miim_a_pins: mdio-pins {
> +		/* MDC, MDIO */
> +		pins =  "GPIO_28", "GPIO_29";
> +		function = "miim_a";
> +	};
> +
> +	pps_out_pins: pps-out-pins {

Can you also document this one as well? I can do it while applying if you
provide the strings.

> +		pins = "GPIO_38";
> +		function = "ptpsync_3";
> +	};
> +
> +	ptp_ext_pins: ptp-ext-pins {

Ditto

Thank you,
Claudiu Beznea

> +		pins = "GPIO_35";
> +		function = "ptpsync_0";
> +	};
> +
> +	udc_pins: ucd-pins {
> +		/* VBUS_DET B */
> +		pins = "GPIO_8";
> +		function = "usb_slave_b";
> +	};
> +};
> +
> +&mdio0 {
> +	pinctrl-0 = <&miim_a_pins>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +
> +	ext_phy0: ethernet-phy@7 {
> +		reg = <7>;
> +		coma-mode-gpios = <&gpio 60 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	ext_phy1: ethernet-phy@8 {
> +		reg = <8>;
> +		coma-mode-gpios = <&gpio 60 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	ext_phy2: ethernet-phy@9 {
> +		reg = <9>;
> +		coma-mode-gpios = <&gpio 60 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	ext_phy3: ethernet-phy@10 {
> +		reg = <10>;
> +		coma-mode-gpios = <&gpio 60 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	ext_phy4: ethernet-phy@15 {
> +		reg = <15>;
> +		coma-mode-gpios = <&gpio 60 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	ext_phy5: ethernet-phy@16 {
> +		reg = <16>;
> +		coma-mode-gpios = <&gpio 60 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	ext_phy6: ethernet-phy@17 {
> +		reg = <17>;
> +		coma-mode-gpios = <&gpio 60 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	ext_phy7: ethernet-phy@18 {
> +		reg = <18>;
> +		coma-mode-gpios = <&gpio 60 GPIO_ACTIVE_HIGH>;
> +	};
> +};
> +
> +&port0 {
> +	reg = <2>;
> +	phy-handle = <&ext_phy2>;
> +	phy-mode = "qsgmii";
> +	phys = <&serdes 0 SERDES6G(1)>;
> +	status = "okay";
> +};
> +
> +&port1 {
> +	reg = <3>;
> +	phy-handle = <&ext_phy3>;
> +	phy-mode = "qsgmii";
> +	phys = <&serdes 1 SERDES6G(1)>;
> +	status = "okay";
> +};
> +
> +&port2 {
> +	reg = <0>;
> +	phy-handle = <&ext_phy0>;
> +	phy-mode = "qsgmii";
> +	phys = <&serdes 2 SERDES6G(1)>;
> +	status = "okay";
> +};
> +
> +&port3 {
> +	reg = <1>;
> +	phy-handle = <&ext_phy1>;
> +	phy-mode = "qsgmii";
> +	phys = <&serdes 3 SERDES6G(1)>;
> +	status = "okay";
> +};
> +
> +&port4 {
> +	reg = <6>;
> +	phy-handle = <&ext_phy6>;
> +	phy-mode = "qsgmii";
> +	phys = <&serdes 4 SERDES6G(2)>;
> +	status = "okay";
> +};
> +
> +&port5 {
> +	reg = <7>;
> +	phy-handle = <&ext_phy7>;
> +	phy-mode = "qsgmii";
> +	phys = <&serdes 5 SERDES6G(2)>;
> +	status = "okay";
> +};
> +
> +&port6 {
> +	reg = <4>;
> +	phy-handle = <&ext_phy4>;
> +	phy-mode = "qsgmii";
> +	phys = <&serdes 6 SERDES6G(2)>;
> +	status = "okay";
> +};
> +
> +&port7 {
> +	reg = <5>;
> +	phy-handle = <&ext_phy5>;
> +	phy-mode = "qsgmii";
> +	phys = <&serdes 7 SERDES6G(2)>;
> +	status = "okay";
> +};
> +
> +&serdes {
> +	status = "okay";
> +};
> +
> +&switch {
> +	pinctrl-0 = <&pps_out_pins>, <&ptp_ext_pins>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +};
> +
> +&udc {
> +	pinctrl-0 = <&udc_pins>;
> +	pinctrl-names = "default";
> +	atmel,vbus-gpio = <&gpio 8 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +};