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Message-ID: <CAGVrzcY=RaWEPFwsifw_RymBZ7zNVEV=-ZByn8HG-QWV9+2uVw@mail.gmail.com>
Date: Wed, 7 May 2014 10:31:02 -0700
From: Florian Fainelli <f.fainelli@...il.com>
To: Hubert Chaumette <hchaumette@...neo-embedded.com>
Cc: netdev <netdev@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Randy Dunlap <rdunlap@...radead.org>, xobs@...agi.com,
David Miller <davem@...emloft.net>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: Re: [PATCH v4 1/2] Update Micrel KSZ90x1 binding documentation
2014-05-06 0:40 GMT-07:00 Hubert Chaumette <hchaumette@...neo-embedded.com>:
> Renames micrel-ksz9021.txt to micrel-ksz90x1.txt and adds documentation for
> the KSZ9031 binding from patch 1. Also adds step increment information, and
> note about phy fixups.
>
> Signed-off-by: Hubert Chaumette <hchaumette@...neo-embedded.com>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
> ---
> .../devicetree/bindings/net/micrel-ksz9021.txt | 49 -------------
> .../devicetree/bindings/net/micrel-ksz90x1.txt | 83 ++++++++++++++++++++++
> 2 files changed, 83 insertions(+), 49 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/net/micrel-ksz9021.txt
> create mode 100644 Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
>
> diff --git a/Documentation/devicetree/bindings/net/micrel-ksz9021.txt b/Documentation/devicetree/bindings/net/micrel-ksz9021.txt
> deleted file mode 100644
> index 997a63f..0000000
> --- a/Documentation/devicetree/bindings/net/micrel-ksz9021.txt
> +++ /dev/null
> @@ -1,49 +0,0 @@
> -Micrel KSZ9021 Gigabit Ethernet PHY
> -
> -Some boards require special tuning values, particularly when it comes to
> -clock delays. You can specify clock delay values by adding
> -micrel-specific properties to an Ethernet OF device node.
> -
> -All skew control options are specified in picoseconds. The minimum
> -value is 0, and the maximum value is 3000.
> -
> -Optional properties:
> - - rxc-skew-ps : Skew control of RXC pad
> - - rxdv-skew-ps : Skew control of RX CTL pad
> - - txc-skew-ps : Skew control of TXC pad
> - - txen-skew-ps : Skew control of TX_CTL pad
> - - rxd0-skew-ps : Skew control of RX data 0 pad
> - - rxd1-skew-ps : Skew control of RX data 1 pad
> - - rxd2-skew-ps : Skew control of RX data 2 pad
> - - rxd3-skew-ps : Skew control of RX data 3 pad
> - - txd0-skew-ps : Skew control of TX data 0 pad
> - - txd1-skew-ps : Skew control of TX data 1 pad
> - - txd2-skew-ps : Skew control of TX data 2 pad
> - - txd3-skew-ps : Skew control of TX data 3 pad
> -
> -Examples:
> -
> - /* Attach to an Ethernet device with autodetected PHY */
> - &enet {
> - rxc-skew-ps = <3000>;
> - rxdv-skew-ps = <0>;
> - txc-skew-ps = <3000>;
> - txen-skew-ps = <0>;
> - status = "okay";
> - };
> -
> - /* Attach to an explicitly-specified PHY */
> - mdio {
> - phy0: ethernet-phy@0 {
> - rxc-skew-ps = <3000>;
> - rxdv-skew-ps = <0>;
> - txc-skew-ps = <3000>;
> - txen-skew-ps = <0>;
> - reg = <0>;
> - };
> - };
> - ethernet@...00 {
> - status = "okay";
> - phy = <&phy0>;
> - phy-mode = "rgmii-id";
> - };
> diff --git a/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
> new file mode 100644
> index 0000000..692076f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
> @@ -0,0 +1,83 @@
> +Micrel KSZ9021/KSZ9031 Gigabit Ethernet PHY
> +
> +Some boards require special tuning values, particularly when it comes to
> +clock delays. You can specify clock delay values by adding
> +micrel-specific properties to an Ethernet OF device node.
> +
> +Note that these settings are applied after any phy-specific fixup from
> +phy_fixup_list (see phy_init_hw() from drivers/net/phy/phy_device.c),
> +and therefore may overwrite them.
> +
> +KSZ9021:
> +
> + All skew control options are specified in picoseconds. The minimum
> + value is 0, the maximum value is 3000, and it is incremented by 200ps
> + steps.
> +
> + Optional properties:
> +
> + - rxc-skew-ps : Skew control of RXC pad
> + - rxdv-skew-ps : Skew control of RX CTL pad
> + - txc-skew-ps : Skew control of TXC pad
> + - txen-skew-ps : Skew control of TX CTL pad
> + - rxd0-skew-ps : Skew control of RX data 0 pad
> + - rxd1-skew-ps : Skew control of RX data 1 pad
> + - rxd2-skew-ps : Skew control of RX data 2 pad
> + - rxd3-skew-ps : Skew control of RX data 3 pad
> + - txd0-skew-ps : Skew control of TX data 0 pad
> + - txd1-skew-ps : Skew control of TX data 1 pad
> + - txd2-skew-ps : Skew control of TX data 2 pad
> + - txd3-skew-ps : Skew control of TX data 3 pad
> +
> +KSZ9031:
> +
> + All skew control options are specified in picoseconds. The minimum
> + value is 0, and the maximum is property-dependent. The increment
> + step is 60ps.
> +
> + Optional properties:
> +
> + Maximum value of 1860:
> +
> + - rxc-skew-ps : Skew control of RX clock pad
> + - txc-skew-ps : Skew control of TX clock pad
> +
> + Maximum value of 900:
> +
> + - rxdv-skew-ps : Skew control of RX CTL pad
> + - txen-skew-ps : Skew control of TX CTL pad
> + - rxd0-skew-ps : Skew control of RX data 0 pad
> + - rxd1-skew-ps : Skew control of RX data 1 pad
> + - rxd2-skew-ps : Skew control of RX data 2 pad
> + - rxd3-skew-ps : Skew control of RX data 3 pad
> + - txd0-skew-ps : Skew control of TX data 0 pad
> + - txd1-skew-ps : Skew control of TX data 1 pad
> + - txd2-skew-ps : Skew control of TX data 2 pad
> + - txd3-skew-ps : Skew control of TX data 3 pad
> +
> +Examples:
> +
> + /* Attach to an Ethernet device with autodetected PHY */
> + &enet {
> + rxc-skew-ps = <3000>;
> + rxdv-skew-ps = <0>;
> + txc-skew-ps = <3000>;
> + txen-skew-ps = <0>;
> + status = "okay";
> + };
> +
> + /* Attach to an explicitly-specified PHY */
> + mdio {
> + phy0: ethernet-phy@0 {
> + rxc-skew-ps = <3000>;
> + rxdv-skew-ps = <0>;
> + txc-skew-ps = <3000>;
> + txen-skew-ps = <0>;
> + reg = <0>;
> + };
> + };
> + ethernet@...00 {
> + status = "okay";
> + phy = <&phy0>;
> + phy-mode = "rgmii-id";
> + };
> --
> 2.0.0.rc0
>
--
Florian
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