netdev - Re: [PATCH v2 2/4] dt-bindings: Document EMAC Rockchip

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Date:	Thu, 04 Sep 2014 14:13:04 +0200
From:	Heiko Stübner <heiko@...ech.de>
To:	Romain Perier <romain.perier@...il.com>
Cc:	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, arnd@...db.de
Subject: Re: [PATCH v2 2/4] dt-bindings: Document EMAC Rockchip

Am Mittwoch, 3. September 2014, 16:52:43 schrieb Romain Perier:
> This adds the necessary binding documentation for the EMAC Rockchip platform
> driver found in RK3066 and RK3188 SoCs.
> 
> Signed-off-by: Romain Perier <romain.perier@...il.com>

Reviewed-by: Heiko Stuebner <heiko@...ech.de>

> ---
>  .../devicetree/bindings/net/emac_rockchip.txt      | 50
> ++++++++++++++++++++++ 1 file changed, 50 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/emac_rockchip.txt
> 
> diff --git a/Documentation/devicetree/bindings/net/emac_rockchip.txt
> b/Documentation/devicetree/bindings/net/emac_rockchip.txt new file mode
> 100644
> index 0000000..8dc1c79
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/emac_rockchip.txt
> @@ -0,0 +1,50 @@
> +* ARC EMAC 10/100 Ethernet platform driver for Rockchip Rk3066/RK3188 SoCs
> +
> +Required properties:
> +- compatible: Should be "rockchip,rk3066-emac" or "rockchip,rk3188-emac"
> +  according to the target SoC.
> +- reg: Address and length of the register set for the device
> +- interrupts: Should contain the EMAC interrupts
> +- rockchip,grf: phandle to the syscon grf used to control speed and mode
> +  for emac.
> +- phy: see ethernet.txt file in the same directory.
> +- phy-mode: see ethernet.txt file in the same directory.
> +
> +Optional properties:
> +- phy-supply: phandle to a regulator if the PHY needs one
> +
> +Clock handling:
> +- clocks: Must contain an entry for each entry in clock-names.
> +- clock-names: Shall be "hclk" for the host clock needed to calculate and
> set +  polling period of EMAC and "macref" for the reference clock needed
> to transfer +  data to and from the phy.
> +
> +Child nodes of the driver are the individual PHY devices connected to the
> +MDIO bus. They must have a "reg" property given the PHY address on the MDIO
> bus. +
> +Examples:
> +
> +ethernet@...04000 {
> +	compatible = "rockchip,rk3188-emac";
> +	reg = <0xc0fc2000 0x3c>;
> +	interrupts = <6>;
> +	mac-address = [ 00 11 22 33 44 55 ];
> +
> +	clocks = <&cru HCLK_EMAC>, <&cru SCLK_MAC>;
> +	clock-names = "hclk", "macref";
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&emac_xfer>, <&emac_mdio>, <&phy_int>;
> +
> +	rockchip,grf = <&grf>;
> +
> +	phy = <&phy0>;
> +	phy-mode = "rmii";
> +	phy-supply = <&vcc_rmii>;
> +
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	phy0: ethernet-phy@0 {
> +	      reg = <1>;
> +	};
> +};

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