linux-kernel - RE: [PATCH] arm64: dts: ls1088a: support eMMC HS200 speed mode for RDB board

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Message-ID: <AM7PR04MB6885669DCE6306B3309DB669F8180@AM7PR04MB6885.eurprd04.prod.outlook.com>
Date:   Tue, 11 Feb 2020 05:05:44 +0000
From:   "Y.b. Lu" <yangbo.lu@....com>
To:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Shawn Guo <shawnguo@...nel.org>, Leo Li <leoyang.li@....com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: RE: [PATCH] arm64: dts: ls1088a: support eMMC HS200 speed mode for
 RDB board

Any comments? Thanks!

> -----Original Message-----
> From: Yangbo Lu <yangbo.lu@....com>
> Sent: Tuesday, February 4, 2020 12:09 PM
> To: linux-arm-kernel@...ts.infradead.org; devicetree@...r.kernel.org;
> linux-kernel@...r.kernel.org; Shawn Guo <shawnguo@...nel.org>; Leo Li
> <leoyang.li@....com>
> Cc: Rob Herring <robh+dt@...nel.org>; Mark Rutland
> <mark.rutland@....com>; Y.b. Lu <yangbo.lu@....com>
> Subject: [PATCH] arm64: dts: ls1088a: support eMMC HS200 speed mode for
> RDB board
> 
> This patch is to add eMMC HS200 speed mode support on ls1088ardb
> whose controller and peripheral circut support such capability.
> And clocks dts property is needed for driver to get peripheral
> clock value used for this speed mode.
> 
> Signed-off-by: Yangbo Lu <yangbo.lu@....com>
> ---
>  arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts | 1 +
>  arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi    | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
> b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
> index 4d77b34..5633e59 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
> @@ -83,6 +83,7 @@
>  };
> 
>  &esdhc {
> +	mmc-hs200-1_8v;
>  	status = "okay";
>  };
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> index 5945662..ec6013a 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> @@ -393,6 +393,7 @@
>  			reg = <0x0 0x2140000 0x0 0x10000>;
>  			interrupts = <0 28 0x4>; /* Level high type */
>  			clock-frequency = <0>;
> +			clocks = <&clockgen 2 1>;
>  			voltage-ranges = <1800 1800 3300 3300>;
>  			sdhci,auto-cmd12;
>  			little-endian;
> --
> 2.7.4