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authorHubert Chaumette <hchaumette@adeneo-embedded.com>2014-05-06 07:40:16 (GMT)
committerDavid S. Miller <davem@davemloft.net>2014-05-07 20:51:09 (GMT)
commit4b405efbe12de28b26289282b431323d73992381 (patch)
tree72858d073ce754c469cb3cb6a9d26cc385a4976b /Documentation/devicetree/bindings/net
parent698365fa1874aa7635d51667a34a2842228e9837 (diff)
Update Micrel KSZ90x1 binding documentation
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@adeneo-embedded.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree/bindings/net')
-rw-r--r--Documentation/devicetree/bindings/net/micrel-ksz9021.txt49
-rw-r--r--Documentation/devicetree/bindings/net/micrel-ksz90x1.txt83
2 files changed, 83 insertions, 49 deletions
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@70000 {
- 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@70000 {
+ status = "okay";
+ phy = <&phy0>;
+ phy-mode = "rgmii-id";
+ };

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