From: Yuiko Oshino <yuiko.oshino@microchip.com>
To: davem@davemloft.net, robh+dt@kernel.org,
devicetree@vger.kernel.org, f.fainelli@gmail.com, andrew@lunn.ch
Cc: linux-kernel@vger.kernel.org, mark.rutland@arm.com,
m.felsch@pengutronix.de, Markus.Niebel@tqs.de,
netdev@vger.kernel.org, UNGLinuxDriver@microchip.com
Subject: [PATCH v2 net-next 2/2] dt-bindings: net: add support for Microchip KSZ9131 Ethernet PHY
Date: Thu, 27 Sep 2018 16:16:55 -0400 [thread overview]
Message-ID: <1538079415-6260-1-git-send-email-yuiko.oshino@microchip.com> (raw)
Add support for Microchip Technology KSZ9131 10/100/1000 Ethernet PHY
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
---
.../devicetree/bindings/net/micrel-ksz90x1.txt | 29 +++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
index e22d8cf..d23d14a 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/Microchip 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 +64,33 @@ 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 minimum
+ value is 0, and the maximum is property-dependent. The increment
+ step is 100ps. The default value is the neutral setting, so setting
+ rxc-skew-ps=<0> actually results in -700 picoseconds adjustment.
+
+ Optional properties:
+
+ Maximum value of 2400, default value 700:
+
+ - rxc-skew-ps : Skew control of RX clock pad
+ - txc-skew-ps : Skew control of TX clock pad
+
+ Maximum value of 1500, default value 700:
+
+ - 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:
mdio {
--
2.7.4
next reply other threads:[~2018-09-27 20:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-27 20:16 Yuiko Oshino [this message]
2018-09-27 19:45 ` [PATCH v2 net-next 2/2] dt-bindings: net: add support for Microchip KSZ9131 Ethernet PHY Andrew Lunn
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