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From: Gregory CLEMENT <gregory.clement@bootlin.com>
To: "Marek Behún" <marek.behun@nic.cz>
Cc: "SoC Team" <soc@kernel.org>, arm-soc <arm@kernel.org>,
	"Linux ARM" <linux-arm-kernel@lists.infradead.org>,
	"Marek Behún" <marek.behun@nic.cz>
Subject: Re: [PATCH mvebu-dt64] arm64: dts: armada-3720-turris-mox: forbid SDR104 on SDIO for FCC purposes
Date: Sun, 17 May 2020 18:56:54 +0200	[thread overview]
Message-ID: <87367yh549.fsf@FE-laptop> (raw)
In-Reply-To: <20200430231144.17350-1-marek.behun@nic.cz>

Hi Marek,

> Use sdhci-caps-mask to forbid SDR104 mode on the SDIO capable SDHCI
> controller. Without this the device cannot pass electromagnetic
> interference certifications.
>
> Fixes: 7109d817db2e ("arm64: dts: marvell: add DTS for Turris Mox")
> Signed-off-by: Marek Behún <marek.behun@nic.cz>
> Cc: Gregory CLEMENT <gregory.clement@bootlin.com>


Applied on mvebu/dt64

Thanks,

Gregory

> ---
>  arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> index bb42d1e6a4e9..47fee66c70cb 100644
> --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> @@ -179,6 +179,8 @@ &sdhci1 {
>  	marvell,pad-type = "sd";
>  	vqmmc-supply = <&vsdio_reg>;
>  	mmc-pwrseq = <&sdhci1_pwrseq>;
> +	/* forbid SDR104 for FCC purposes */
> +	sdhci-caps-mask = <0x2 0x0>;
>  	status = "okay";
>  };
>  
> -- 
> 2.24.1
>

-- 
Gregory Clement, Bootlin
Embedded Linux and Kernel engineering
http://bootlin.com

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      reply	other threads:[~2020-05-17 16:57 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-30 23:11 [PATCH mvebu-dt64] arm64: dts: armada-3720-turris-mox: forbid SDR104 on SDIO for FCC purposes Marek Behún
2020-05-17 16:56 ` Gregory CLEMENT [this message]

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