linux-kernel - Re: [PATCH 5/6] Documentation: Binding doc for ethernet master in NS2

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Date:	Fri, 22 Apr 2016 15:13:51 -0500
From:	Rob Herring <robh@...nel.org>
To:	Pramod Kumar <pramod.kumar@...adcom.com>
Cc:	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Masahiro Yamada <yamada.masahiro@...ionext.com>,
	Chen-Yu Tsai <wens@...e.org>,
	BCM Kernel Feedback <bcm-kernel-feedback-list@...adcom.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Arnd Bergmann <arnd@...db.de>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Punit Agrawal <punit.agrawal@....com>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 5/6] Documentation: Binding doc for ethernet master in NS2

On Thu, Apr 21, 2016 at 02:48:42PM +0530, Pramod Kumar wrote:
> Adding binding doc for ethernet master present in shared
> MDIO controller.
> 
> Signed-off-by: Pramod Kumar <pramod.kumar@...adcom.com>
> Reviewed-by: Ray Jui <ray.jui@...adcom.com>
> Reviewed-by: Scott Branden <scott.branden@...adcom.com>
> ---
>  .../bindings/net/brcm,iproc-mdio-shared.txt        | 32 ++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/brcm,iproc-mdio-shared.txt
> 
> diff --git a/Documentation/devicetree/bindings/net/brcm,iproc-mdio-shared.txt b/Documentation/devicetree/bindings/net/brcm,iproc-mdio-shared.txt
> new file mode 100644
> index 0000000..1ffdd4b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/brcm,iproc-mdio-shared.txt
> @@ -0,0 +1,32 @@
> +Broadcom Ethernet master for shared mdio controller
> +
> +Required properties:
> +- compatible: must be "brcm,iproc-mdio-master-eth"
> +- reg: master id of Ethernet block
> +- address-cells: should be 1
> +- size-cells: should be 0
> +
> +Sub-nodes:
> +  Each port's PHY should be represented as a sub-node.
> +
> +Sub-nodes required properties:
> +- reg: the PHY number
> +- phy-mode: media type connecting the PHY and MAC.
> +
> +
> +Example:
> +	eth-master@0 {

Is this a child of something?

Why is this not just an mdio bus underneath the ethernet controller? How 
is this accessed?

> +		compatible = "brcm,iproc-mdio-master-eth";
> +		reg = <0x0>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		gphy0: eth-phy@10 {
> +			reg = <0x10>;
> +			phy-mode = "mii";
> +		};
> +		status = "ok"
> +	};
> +
> +For more info on ethernet phy binding, please,refer to:
> +Documentation/devicetree/bindings/net/phy.txt
> +Documentation/devicetree/bindings/net/ethernet.txt
> -- 
> 1.9.1
>