linux-kernel - Re: [PATCH v5 5/5] ARM: dts: microchip: add support for sama7d65

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Message-ID: <6e14b7c5-90cd-4d26-9494-610e248267da@tuxon.dev>
Date: Thu, 9 Jan 2025 11:07:09 +0200
From: Claudiu Beznea <claudiu.beznea@...on.dev>
To: Ryan.Wanner@...rochip.com, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, nicolas.ferre@...rochip.com,
 alexandre.belloni@...tlin.com, mturquette@...libre.com, sboyd@...nel.org,
 arnd@...db.de
Cc: dharma.b@...rochip.com, mihai.sain@...rochip.com,
 romain.sioen@...rochip.com, varshini.rajendran@...rochip.com,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
 linux-mmc@...r.kernel.org, linux-gpio@...r.kernel.org,
 linux-spi@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH v5 5/5] ARM: dts: microchip: add support for
 sama7d65_curiosity board

Hi, Ryan,

On 07.01.2025 18:07, Ryan.Wanner@...rochip.com wrote:
> From: Romain Sioen <romain.sioen@...rochip.com>
> 
> Add device tree support for the SAMA7D65 Curiosity board.
> Update the Makefile to include the new device tree file.
> 
> uart6 is related to flexcom6, hence not sorted in alphabetical order.
> 
> Signed-off-by: Romain Sioen <romain.sioen@...rochip.com>
> Signed-off-by: Varshini Rajendran <varshini.rajendran@...rochip.com>
> Signed-off-by: Ryan Wanner <Ryan.Wanner@...rochip.com>
> ---
>  arch/arm/boot/dts/microchip/Makefile          |  3 +
>  .../dts/microchip/at91-sama7d65_curiosity.dts | 89 +++++++++++++++++++
>  2 files changed, 92 insertions(+)
>  create mode 100644 arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts
> 
> diff --git a/arch/arm/boot/dts/microchip/Makefile b/arch/arm/boot/dts/microchip/Makefile
> index 470fe46433a9..79cd38fdc7da 100644
> --- a/arch/arm/boot/dts/microchip/Makefile
> +++ b/arch/arm/boot/dts/microchip/Makefile
> @@ -12,6 +12,7 @@ DTC_FLAGS_at91-sama5d2_xplained := -@
>  DTC_FLAGS_at91-sama5d3_eds := -@
>  DTC_FLAGS_at91-sama5d3_xplained := -@
>  DTC_FLAGS_at91-sama5d4_xplained := -@
> +DTC_FLAGS_at91-sama7d65_curiosity := -@
>  DTC_FLAGS_at91-sama7g54_curiosity := -@
>  DTC_FLAGS_at91-sama7g5ek := -@
>  dtb-$(CONFIG_SOC_AT91RM9200) += \
> @@ -90,6 +91,8 @@ dtb-$(CONFIG_SOC_SAM_V7) += \
>  	at91-sama5d4_xplained.dtb \
>  	at91-sama5d4ek.dtb \
>  	at91-vinco.dtb
> +dtb-$(CONFIG_SOC_SAMA7D65) += \
> +	at91-sama7d65_curiosity.dtb
>  dtb-$(CONFIG_SOC_SAMA7G5) += \
>  	at91-sama7g54_curiosity.dtb \
>  	at91-sama7g5ek.dtb
> diff --git a/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts
> new file mode 100644
> index 000000000000..ef6a56db8acb
> --- /dev/null
> +++ b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts
> @@ -0,0 +1,89 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + *  at91-sama7d65_curiosity.dts - Device Tree file for SAMA7D65 Curiosity board
> + *
> + *  Copyright (c) 2024 Microchip Technology Inc. and its subsidiaries
> + *
> + *  Author: Romain Sioen <romain.sioen@...rochip.com>
> + *
> + */
> +/dts-v1/;
> +#include "sama7d65-pinfunc.h"
> +#include "sama7d65.dtsi"
> +#include <dt-bindings/mfd/atmel-flexcom.h>
> +#include <dt-bindings/pinctrl/at91.h>
> +
> +/ {
> +	model = "Microchip SAMA7D65 Curiosity";
> +	compatible = "microchip,sama7d65-curiosity", "microchip,sama7d65",
> +		     "microchip,sama7d6", "microchip,sama7";
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	aliases {
> +		serial0 = &uart6;
> +	};

While applying this, I switched chosen and aliases to have it
alphanumerically sorted.

> +
> +	memory@...00000 {
> +		device_type = "memory";
> +		reg = <0x60000000 0x40000000>;
> +	};
> +};
> +
> +&flx6 {
> +	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
> +	status = "okay";
> +};
> +
> +&uart6 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart6_default>;
> +	status = "okay";
> +};
> +
> +&main_xtal {
> +	clock-frequency = <24000000>;
> +};
> +
> +&pioa {
> +	pinctrl_sdmmc1_default: sdmmc1-default {
> +		cmd-data {
> +			pinmux = <PIN_PB22__SDMMC1_CMD>,
> +				 <PIN_PB24__SDMMC1_DAT0>,
> +				 <PIN_PB25__SDMMC1_DAT1>,
> +				 <PIN_PB26__SDMMC1_DAT2>,
> +				 <PIN_PB27__SDMMC1_DAT3>;
> +			slew-rate = <0>;
> +			bias-disable;
> +		};
> +
> +		ck-cd-rstn-vddsel {
> +			pinmux = <PIN_PB23__SDMMC1_CK>,
> +				 <PIN_PB21__SDMMC1_RSTN>,
> +				 <PIN_PB30__SDMMC1_1V8SEL>,
> +				 <PIN_PB29__SDMMC1_CD>,
> +				 <PIN_PB28__SDMMC1_WP>;
> +			slew-rate = <0>;
> +			bias-disable;
> +		};
> +	};
> +
> +	pinctrl_uart6_default: uart6-default {
> +		pinmux = <PIN_PD18__FLEXCOM6_IO0>,
> +			<PIN_PD19__FLEXCOM6_IO1>;

Missing a space here    ^. I already added it while applying.

Thank you,
Claudiu