linux-kernel - Re: [PATCH] ARM: dts: stm32: add sd-uhs properties in SD-card node for stm32mp157c-ed1

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Date:   Tue, 5 May 2020 13:51:32 +0200
From:   Alexandre Torgue <alexandre.torgue@...com>
To:     Yann Gautier <yann.gautier@...com>, <robh+dt@...nel.org>,
        <mcoquelin.stm32@...il.com>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     Ludovic Barre <ludovic.barre@...com>
Subject: Re: [PATCH] ARM: dts: stm32: add sd-uhs properties in SD-card node
 for stm32mp157c-ed1

Hi Yann

On 4/30/20 12:16 PM, Yann Gautier wrote:
> The sdmmc1 peripheral is connected on SD-card on STM32MP1-ED1 board.
> Add the UHS features the controller is able to manage.
> Those features require a level shifter on the board, and the support of
> the voltage switch in driver, which is done in Linux v5.7.
> 
> Signed-off-by: Ludovic Barre <ludovic.barre@...com>
> Signed-off-by: Yann Gautier <yann.gautier@...com>
> ---
>   arch/arm/boot/dts/stm32mp157c-ed1.dts | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
> index 9d2592db630c..1d7dfe97b160 100644
> --- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
> @@ -320,6 +320,10 @@
>   	bus-width = <4>;
>   	vmmc-supply = <&vdd_sd>;
>   	vqmmc-supply = <&sd_switch>;
> +	sd-uhs-sdr12;
> +	sd-uhs-sdr25;
> +	sd-uhs-sdr50;
> +	sd-uhs-ddr50;
>   	status = "okay";
>   };
>   
> 

Applied on stm32-next.

Thanks.
Alex