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Date:   Mon, 17 Sep 2018 11:33:22 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Biao Huang <biao.huang@...iatek.com>, davem@...emloft.net,
        robh+dt@...nel.org
Cc:     honghui.zhang@...iatek.com, yt.shen@...iatek.com,
        liguo.zhang@...iatek.com, mark.rutland@....com,
        sean.wang@...iatek.com, nelson.chang@...iatek.com,
        matthias.bgg@...il.com, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 1/2] dt-binding: mediatek: Add binding document for
 MediaTek GMAC

On 9/17/2018 9:29 AM, Biao Huang wrote:

> The commit adds the device tree binding documentation for the MediaTek
> GMAC found on Mediatek MT2712.
> 
> Signed-off-by: Biao Huang <biao.huang@...iatek.com>
> ---
>   .../devicetree/bindings/net/mediatek-gmac.txt      |   45 ++++++++++++++++++++
>   1 file changed, 45 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/net/mediatek-gmac.txt
> 
> diff --git a/Documentation/devicetree/bindings/net/mediatek-gmac.txt b/Documentation/devicetree/bindings/net/mediatek-gmac.txt
> new file mode 100644
> index 0000000..14876ed
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/mediatek-gmac.txt
> @@ -0,0 +1,45 @@
> +MediaTek Gigabit Ethernet controller
> +=========================================
> +
> +The gigabit ethernet controller can be found on MediaTek SoCs.
> +
> +* Ethernet controller node
> +
> +Required properties:
> +- compatible: Should be
> +	"mediatek,mt2712-eth": for MT2712 SoC
> +- reg: Address and length of the register set for the device
> +- interrupts: Should contain the MAC interrupts
> +- interrupt-names: the name of interrupt in the interrupts property. These are
> +	"macirq": For MT2712 SoC
> +- clocks: the clock used by the controller
> +- clock-names: the names of the clock listed in the clocks property. These are
> +	"axi", "apb", "mac_ext", "ptp", "ptp_parent", "ptp_top": For MT2712 SoC
> +- mac-address: See ethernet.txt in the same directory
> +- power-domains: phandle to the power domain that the ethernet is part of

    This (required) prop is absent in your example.

> +- phy-mode: See ethernet.txt file in the same directory.
> +- reset-gpio: gpio number for phy reset.
> +
> +Example:
> +
> +eth: eth@...1c000 {

eth: ethernet@...1c000 {

> +		compatible = "mediatek,mt2712-eth";
> +		reg = <0 0x1101c000 0 0x1200>;
> +		interrupts = <GIC_SPI 237 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-names = "macirq";
> +		phy-mode ="rgmii";
> +		mac-address = [00 55 7b b5 7d f7];
> +		clock-names = "axi",
> +			      "apb",
> +			      "mac_ext",
> +			      "ptp",
> +			      "ptp_parent",
> +			      "ptp_top";
> +		clocks = <&pericfg CLK_PERI_GMAC>,
> +			 <&pericfg CLK_PERI_GMAC_PCLK>,
> +			 <&topckgen CLK_TOP_ETHER_125M_SEL>,
> +			 <&topckgen CLK_TOP_ETHER_50M_SEL>,
> +			 <&topckgen CLK_TOP_APLL1_D3>,
> +			 <&topckgen CLK_TOP_APLL1>;
> +		reset-gpio = <&pio 87 GPIO_ACTIVE_HIGH>;
> +	};

MBR, Sergei

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