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Message-ID: <1539889562-21458-3-git-send-email-yuiko.oshino@microchip.com>
Date: Thu, 18 Oct 2018 15:06:02 -0400
From: Yuiko Oshino <yuiko.oshino@...rochip.com>
To: <davem@...emloft.net>, <robh+dt@...nel.org>,
<devicetree@...r.kernel.org>, <f.fainelli@...il.com>,
<andrew@...n.ch>
CC: <linux-kernel@...r.kernel.org>, <mark.rutland@....com>,
<m.felsch@...gutronix.de>, <Markus.Niebel@....de>,
<netdev@...r.kernel.org>, <UNGLinuxDriver@...rochip.com>
Subject: [PATCH v3 net-next 2/2] dt-bindings: net: add support for Microchip KSZ9131
Add support for Microchip Technology KSZ9131 10/100/1000 Ethernet PHY
Signed-off-by: Yuiko Oshino <yuiko.oshino@...rochip.com>
---
.../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
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