diff options
Diffstat (limited to 'Documentation/devicetree/bindings/net/micrel-ksz90x1.txt')
-rw-r--r-- | Documentation/devicetree/bindings/net/micrel-ksz90x1.txt | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt index c35b5b428a7f..1c1b4395f72e 100644 --- a/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt +++ b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt @@ -1,4 +1,4 @@ -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 @@ -57,6 +57,32 @@ KSZ9031: - txd2-skew-ps : Skew control of TX data 2 pad - txd3-skew-ps : Skew control of TX data 3 pad +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 { |