Some Marvell DSA devices can be accessed in a single chip addressing mode. This is currently configured by setting the address of the switch to 0. However switches in this configuration do not respond to address 0, only responding to higher addresses (fixed addressed based on the switch model) for the individual ports/etc. This is a feature to allow for other phys to exist on the same mdio bus. This change defines a 'single-chip-address' property in order to explicitly define that the chip is accessed in this mode. This allows for a switch to have an address defined other than 0, so that address 0 can be used for another mdio device. Signed-off-by: Nathan Rossi <nathan@xxxxxxxxxxxxxxx> --- Documentation/devicetree/bindings/net/dsa/marvell.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/net/dsa/marvell.txt b/Documentation/devicetree/bindings/net/dsa/marvell.txt index 2363b41241..5c7304274c 100644 --- a/Documentation/devicetree/bindings/net/dsa/marvell.txt +++ b/Documentation/devicetree/bindings/net/dsa/marvell.txt @@ -46,6 +46,8 @@ Optional properties: - mdio? : Container of PHYs and devices on the external MDIO bus. The node must contains a compatible string of "marvell,mv88e6xxx-mdio-external" +- single-chip-address : Device is configured to use single chip addressing + mode. Example: --- 2.35.2
