Commit 806700ba authored by Yuiko Oshino's avatar Yuiko Oshino Committed by David S. Miller

dt-bindings: net: add support for Microchip KSZ9131

Add support for Microchip Technology KSZ9131 10/100/1000 Ethernet PHY
Signed-off-by: default avatarYuiko Oshino <yuiko.oshino@microchip.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bff5b4b3
Micrel KSZ9021/KSZ9031 Gigabit Ethernet PHY
Micrel KSZ9021/KSZ9031/KSZ9131 Gigabit Ethernet PHY
Some boards require special tuning values, particularly when it comes
to clock delays. You can specify clock delay values in the PHY OF
......@@ -64,6 +64,32 @@ KSZ9031:
Attention: The link partner must be configurable as slave otherwise
no link will be established.
KSZ9131:
All skew control options are specified in picoseconds. The increment
step is 100ps. Unlike KSZ9031, the values represent picoseccond delays.
A negative value can be assigned as rxc-skew-psec = <(-100)>;.
Optional properties:
Range of the value -700 to 2400, default value 0:
- rxc-skew-psec : Skew control of RX clock pad
- txc-skew-psec : Skew control of TX clock pad
Range of the value -700 to 800, default value 0:
- rxdv-skew-psec : Skew control of RX CTL pad
- txen-skew-psec : Skew control of TX CTL pad
- rxd0-skew-psec : Skew control of RX data 0 pad
- rxd1-skew-psec : Skew control of RX data 1 pad
- rxd2-skew-psec : Skew control of RX data 2 pad
- rxd3-skew-psec : Skew control of RX data 3 pad
- txd0-skew-psec : Skew control of TX data 0 pad
- txd1-skew-psec : Skew control of TX data 1 pad
- txd2-skew-psec : Skew control of TX data 2 pad
- txd3-skew-psec : Skew control of TX data 3 pad
Examples:
mdio {
......
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