From: Vladimir Oltean <vladimir.oltean@xxxxxxx>
There are 4 variations of the SJA1110 switch which have a different set
of MII protocols supported per port. Document the compatible strings.
Also, the SJA1110 optionally supports 2 internal MDIO buses for 2
different types of Ethernet PHYs. Document a container node called
"mdios" which has 2 subnodes "mdio@0" and "mdio@1", identifiable via
compatible string, under which the driver finds the internal PHYs.
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
---
v1->v2: Patch is new.
v2->v3: None.
.../bindings/net/dsa/nxp,sja1105.yaml | 43 +++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml b/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml
index d6ac9a0c1b04..0b8a05dd52e6 100644
--- a/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml
@@ -27,10 +27,53 @@ properties:
- nxp,sja1105q
- nxp,sja1105r
- nxp,sja1105s
+ - nxp,sja1110a
+ - nxp,sja1110b
+ - nxp,sja1110c
+ - nxp,sja1110d
reg:
maxItems: 1
+ # Optional container node for the 2 internal MDIO buses of the SJA1110
+ # (one for the internal 100base-T1 PHYs and the other for the single
+ # 100base-TX PHY). The "reg" property does not have physical significance.
+ # The PHY addresses to port correspondence is as follows: for 100base-T1,
+ # port 5 has PHY 1, port 6 has PHY 2 etc, while for 100base-TX, port 1 has
+ # PHY 1.
+ mdios:
+ type: object
+
+ properties:
+ '#address-cells':
+ const: 1
+ '#size-cells':
+ const: 0
+
+ patternProperties:
+ "^mdio@[0-1]$":
+ type: object
+
+ allOf:
+ - $ref: "http://devicetree.org/schemas/net/mdio.yaml#";
+
+ properties:
+ compatible:
+ oneOf:
+ - enum:
+ - nxp,sja1110-base-t1-mdio
+ - nxp,sja1110-base-tx-mdio
+
+ reg:
+ oneOf:
+ - enum:
+ - 0
+ - 1
+
+ required:
+ - compatible
+ - reg
+
required:
- compatible
- reg
--
2.25.1
