linux-kernel - Re: [PATCH REPOST 2/2] arm/dt: Tegra: Add support-8bit to SDHCI nodes

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Message-ID: <20110920174155.GG7781@ponder.secretlab.ca>
Date:	Tue, 20 Sep 2011 11:41:55 -0600
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Stephen Warren <swarren@...dia.com>
Cc:	Arnd Bergmann <arnd@...db.de>, nicolas.pitre@...aro.org,
	Olof Johansson <olof@...om.net>,
	Shawn Guo <shawn.guo@...aro.org>, Chris Ball <cjb@...top.org>,
	linux-mmc@...r.kernel.org, linux-tegra@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH REPOST 2/2] arm/dt: Tegra: Add support-8bit to SDHCI nodes

On Tue, Sep 20, 2011 at 10:46:26AM -0600, Stephen Warren wrote:
> For Seaboard's internal eMMC, this makes the difference between a
> 5.5MB/s and 10.2MB/s transfer rate. On Harmony, there wasn't any
> measurable difference on my cheap/slow ~2MB/s card.
> 
> Signed-off-by: Stephen Warren <swarren@...dia.com>

Acked-by: Grant Likely <grant.likely@...retlab.ca>

> ---
>  arch/arm/boot/dts/tegra-harmony.dts  |    1 +
>  arch/arm/boot/dts/tegra-seaboard.dts |    4 ++++
>  2 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/tegra-harmony.dts b/arch/arm/boot/dts/tegra-harmony.dts
> index e581866..0e225b8 100644
> --- a/arch/arm/boot/dts/tegra-harmony.dts
> +++ b/arch/arm/boot/dts/tegra-harmony.dts
> @@ -66,5 +66,6 @@
>  		cd-gpios = <&gpio 58 0>; /* gpio PH2 */
>  		wp-gpios = <&gpio 59 0>; /* gpio PH3 */
>  		power-gpios = <&gpio 70 0>; /* gpio PI6 */
> +		support-8bit;
>  	};
>  };
> diff --git a/arch/arm/boot/dts/tegra-seaboard.dts b/arch/arm/boot/dts/tegra-seaboard.dts
> index 64cedca..a72299b 100644
> --- a/arch/arm/boot/dts/tegra-seaboard.dts
> +++ b/arch/arm/boot/dts/tegra-seaboard.dts
> @@ -25,4 +25,8 @@
>  		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
>  		power-gpios = <&gpio 70 0>; /* gpio PI6 */
>  	};
> +
> +	sdhci@...00600 {
> +		support-8bit;
> +	};
>  };
> -- 
> 1.7.0.4
> 
--
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