Re: [PATCH V3 1/3] Documentation: devicetree: add qca8k binding
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From: Rob Herring <hidden>
Date: 2016-09-23 15:23:28
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linux-devicetree, lkml
On Thu, Sep 15, 2016 at 04:26:39PM +0200, John Crispin wrote:
quoted hunk ↗ jump to hunk
Add device-tree binding for ar8xxx switch families. Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Signed-off-by: John Crispin <redacted> --- Changes in V2 * fixup example to include phy nodes and corresponding phandles * add a note explaining why we need to phy nodes Changes in V3 * add note stating that the cpu port is always 0 .../devicetree/bindings/net/dsa/qca8k.txt | 89 ++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/dsa/qca8k.txtdiff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.txt b/Documentation/devicetree/bindings/net/dsa/qca8k.txt new file mode 100644 index 0000000..9c67ee4 --- /dev/null +++ b/Documentation/devicetree/bindings/net/dsa/qca8k.txt@@ -0,0 +1,89 @@ +* Qualcomm Atheros QCA8xxx switch family + +Required properties: + +- compatible: should be "qca,qca8337" +- #size-cells: must be 0 +- #address-cells: must be 1 + +Subnodes: + +The integrated switch subnode should be specified according to the binding +described in dsa/dsa.txt. As the QCA8K switches do not have a N:N mapping of +port and PHY id, each subnode describing a port needs to have a valid phandle +referencing the internal PHY connected to it. The CPU port of this switch is +always port 0. + +Example: + + + &mdio0 { + phy_port1: phy@0 { + reg = <0>; + }; + + phy_port2: phy@1 { + reg = <1>; + }; + + phy_port3: phy@2 { + reg = <2>; + }; + + phy_port4: phy@3 { + reg = <3>; + }; + + phy_port5: phy@4 { + reg = <4>; + }; + + switch0@0 {
The unit address here is the mdio device address and should be unique. You have 2 devices at 0.
quoted hunk ↗ jump to hunk
+ compatible = "qca,qca8337"; + #address-cells = <1>; + #size-cells = <0>; + + reg = <0>;
Not documented.
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ label = "cpu";
+ ethernet = <&gmac1>;
+ phy-mode = "rgmii";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan1";
+ phy-handle = <&phy_port1>;
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan2";
+ phy-handle = <&phy_port2>;
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan3";
+ phy-handle = <&phy_port3>;
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "lan4";
+ phy-handle = <&phy_port4>;
+ };
+
+ port@5 {
+ reg = <5>;
+ label = "wan";
+ phy-handle = <&phy_port5>;
+ };
+ };
+ };
+ };
--
1.7.10.4
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