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| author | Juergen Beisert <jbe@pengutronix.de> | 2017-04-18 10:48:27 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-20 13:48:55 -0400 |
| commit | dc7005831523d674be11a98f3256e0cc871157d6 (patch) | |
| tree | 08f43cc785895ae0f6df25bfc3c004d9bd8cf4c8 /Documentation/devicetree | |
| parent | be4e119f991451a3f3385b4d167c016c6eb49e78 (diff) | |
| download | linux-dc7005831523d674be11a98f3256e0cc871157d6.tar.gz linux-dc7005831523d674be11a98f3256e0cc871157d6.tar.bz2 linux-dc7005831523d674be11a98f3256e0cc871157d6.zip | |
net: dsa: LAN9303: add MDIO managed mode support
When the LAN9303 device is in MDIO manged mode, all register accesses must
be done via MDIO.
Please note: this code is compile time tested only due to the absence of such
configured hardware. It is based on a patch from Stefan Roese from 2014.
Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
CC: devicetree@vger.kernel.org
CC: robh+dt@kernel.org
CC: mark.rutland@arm.com
CC: sr@denx.de
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/net/dsa/lan9303.txt | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/net/dsa/lan9303.txt b/Documentation/devicetree/bindings/net/dsa/lan9303.txt index 2edc2561467a..04f2965a4467 100644 --- a/Documentation/devicetree/bindings/net/dsa/lan9303.txt +++ b/Documentation/devicetree/bindings/net/dsa/lan9303.txt @@ -3,7 +3,10 @@ SMSC/MicroChip LAN9303 three port ethernet switch Required properties: -- compatible: should be "smsc,lan9303-i2c" +- compatible: should be + - "smsc,lan9303-i2c" for I2C managed mode + or + - "smsc,lan9303-mdio" for mdio managed mode Optional properties: @@ -60,3 +63,43 @@ I2C managed mode: }; }; }; + +MDIO managed mode: + + master: masterdevice@X { + status = "okay"; + phy-handle = <&switch>; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + + switch: switch-phy@0 { + compatible = "smsc,lan9303-mdio"; + reg = <0>; + reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>; + reset-duration = <100>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + label = "cpu"; + ethernet = <&master>; + }; + + port@1 { /* external port 1 */ + reg = <1>; + label = "lan1; + }; + + port@2 { /* external port 2 */ + reg = <2>; + label = "lan2"; + }; + }; + }; + }; + }; |