[PATCH v3 net-next 2/2] dt-bindings: net: add support for Microchip KSZ9131

From: Yuiko Oshino
Date: Thu Oct 18 2018 - 14:15:19 EST


Add support for Microchip Technology KSZ9131 10/100/1000 Ethernet PHY

Signed-off-by: Yuiko Oshino <yuiko.oshino@xxxxxxxxxxxxx>
---
.../devicetree/bindings/net/micrel-ksz90x1.txt | 28 +++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
index e22d8cf..5100358 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
@@ -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 {
--
2.7.4