linux-kernel - Re: [PATCH v3 8/13] arm64: allwinner: a64: Add MMC nodes

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Message-ID: <20170116191641.GA11718@Red>
Date:   Mon, 16 Jan 2017 20:16:41 +0100
From:   Corentin Labbe <clabbe.montjoie@...il.com>
To:     Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, Ulf Hansson <ulf.hansson@...aro.org>,
        devicetree@...r.kernel.org,
        Andre Przywara <andre.przywara@....com>,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 8/13] arm64: allwinner: a64: Add MMC nodes

On Mon, Jan 16, 2017 at 05:56:58PM +0100, Maxime Ripard wrote:
> From: Andre Przywara <andre.przywara@....com>
> 
> The A64 has 3 MMC controllers, one of them being especially targeted to
> eMMC. Among other things, it has a data strobe signal and a 8 bits data
> width.
> 
> The two other are more usual controllers that will have a 4 bits width at
> most and no data strobe signal, which limits it to more usual SD or MMC
> peripherals.
> 
> Signed-off-by: Andre Przywara <andre.przywara@....com>
> Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 39 ++++++++++++++++++++-
>  1 file changed, 39 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 99b6bb1e141c..143e9706438f 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -299,6 +299,45 @@
>  			#size-cells = <0>;
>  		};
>  
> +		mmc0: mmc@...f000 {
> +			compatible = "allwinner,sun50i-a64-mmc";
> +			reg = <0x01c0f000 0x1000>;
> +			clocks = <&ccu CLK_BUS_MMC0>, <&ccu CLK_MMC0>;
> +			clock-names = "ahb", "mmc";
> +			resets = <&ccu RST_BUS_MMC0>;
> +			reset-names = "ahb";
> +			interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +		};
> +
> +		mmc1: mmc@...0000 {
> +			compatible = "allwinner,sun50i-a64-mmc";
> +			reg = <0x01c10000 0x1000>;
> +			clocks = <&ccu CLK_BUS_MMC1>, <&ccu CLK_MMC1>;
> +			clock-names = "ahb", "mmc";
> +			resets = <&ccu RST_BUS_MMC1>;
> +			reset-names = "ahb";
> +			interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +		};
> +
> +		mmc2: mmc@...1000 {
> +			compatible = "allwinner,sun50i-a64-emmc";
> +			reg = <0x01c11000 0x1000>;
> +			clocks = <&ccu CLK_BUS_MMC2>, <&ccu CLK_MMC2>;
> +			clock-names = "ahb", "mmc";
> +			resets = <&ccu RST_BUS_MMC2>;
> +			reset-names = "ahb";
> +			interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +		};
> +
>  		gic: interrupt-controller@...1000 {
>  			compatible = "arm,gic-400";
>  			reg = <0x01c81000 0x1000>,

Hello

It seems that mmc node is after i2c@...b400 so not in address order.

Regards
Corentin Labbe