linux-kernel - Re: [PATCH v9 2/4] Documentation: dts: Add bindings for APM X-Gene SoC ethernet driver

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Date:	Tue, 15 Jul 2014 11:15:22 +0530
From:	Varka Bhadram <varkabhadram@...il.com>
To:	Iyappan Subramanian <isubramanian@....com>, davem@...emloft.net,
	netdev@...r.kernel.org, devicetree@...r.kernel.org
CC:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, jcm@...hat.com,
	patches@....com, Ravi Patel <rapatel@....com>,
	Keyur Chudgar <kchudgar@....com>
Subject: Re: [PATCH v9 2/4] Documentation: dts: Add bindings for APM X-Gene
 SoC ethernet driver

On 07/15/2014 03:48 AM, Iyappan Subramanian wrote:
> This patch adds documentation for APM X-Gene SoC ethernet DTS binding.
>
> Signed-off-by: Iyappan Subramanian <isubramanian@....com>
> Signed-off-by: Ravi Patel <rapatel@....com>
> Signed-off-by: Keyur Chudgar <kchudgar@....com>
> ---
>   .../devicetree/bindings/net/apm-xgene-enet.txt     | 72 ++++++++++++++++++++++
>   1 file changed, 72 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/net/apm-xgene-enet.txt
>
> diff --git a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
> new file mode 100644
> index 0000000..3e2a295
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
> @@ -0,0 +1,72 @@
> +APM X-Gene SoC Ethernet nodes
> +
> +Ethernet nodes are defined to describe on-chip ethernet interfaces in
> +APM X-Gene SoC.
> +
> +Required properties:
> +- compatible:		Should be "apm,xgene-enet"
> +- reg: Address and length of the register set for the device. It contains the
> +       information of registers in the same order as described by reg-names
> +- reg-names: Should contain the register set names

These are not aligned properly...

Required properties:
- compatble		: Should be "apm,xgene-enet"
- reg			: Address and length of the register set for the device.
			  It contains the information of registers in the same order
			  as described by reg-names

.....

> +  "enet_csr":		Ethernet control and status register address space
> +  "ring_csr":		Descriptor ring control and status register address space
> +  "ring_cmd":		Descriptor ring command register address space
> +- interrupts:		Ethernet main interrupt
> +- clocks:		Reference to the clock entry.
> +- local-mac-address:	MAC address assigned to this device
> +- phy-connection-type:	Interface type between ethernet device and PHY device
> +- phy-handle:		Reference to a PHY node connected to this device
> +
> +- mdio: 		Device tree subnode with the following required
> +			properties:
> +
> +	- compatible: Must be "apm,xgene-mdio".
> +	- #address-cells: Must be <1>.
> +	- #size-cells: Must be <0>.
> +
> +	For the phy on the mdio bus, there must be a node with the following
> +	fields:
> +
> +	- compatible: PHY identifier.  Please refer ./phy.txt for the format.
> +	- reg: The ID number for the phy.
> +

alignment...  :-)

> +Optional properties:
> +- status		: Should be "ok" or "disabled" for enabled/disabled.
> +			  Default is "ok".
> +
> +
> +Example:
> +	menetclk: menetclk {
> +		compatible = "apm,xgene-device-clock";
> +		clock-output-names = "menetclk";
> +		status = "ok";
> +	};
> +
> +	menet: ethernet@...20000 {
> +		compatible = "apm,xgene-enet";
> +		status = "disabled";
> +		reg = <0x0 0x17020000 0x0 0xd100>,
> +		      <0x0 0X17030000 0x0 0X400>,
> +		      <0x0 0X10000000 0x0 0X200>;
> +		reg-names = "enet_csr", "ring_csr", "ring_cmd";
> +		interrupts = <0x0 0x3c 0x4>;
> +		clocks = <&menetclk 0>;
> +		local-mac-address = [00 01 73 00 00 01];
> +		phy-connection-type = "rgmii";
> +		phy-handle = <&menetphy>;
> +		mdio {
> +			compatible = "apm,xgene-mdio";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			menetphy: menetphy@3 {
> +				compatible = "ethernet-phy-id001c.c915";
> +				reg = <0x3>;
> +			};
> +
> +		};
> +	};
> +
> +/* Board-specific peripheral configurations */
> +&menet {
> +        status = "ok";
> +};


-- 
Regards,
Varka Bhadram.

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