On 30.04.2023 20:18, Andrew Lunn wrote:
On Sun, Apr 30, 2023 at 07:17:10PM +0300, Arınç ÜNAL wrote:
On 30.04.2023 15:34, Arınç ÜNAL wrote:
On 30.04.2023 14:28, David Bauer wrote:
Document the ability to add nodes for the MDIO bus connecting the
switch-internal PHYs.
This is quite interesting. Currently the PHY muxing feature for the
MT7530 switch looks for some fake ethernet-phy definitions on the
mdio-bus where the switch is also defined.
Looking at the binding here, there will be an mdio node under the switch
node. This could be useful to define the ethernet-phys for PHY muxing
here instead, so we don't waste the register addresses on the parent
mdio-bus for fake things. It looks like this should work right out of
the box. I will do some tests.
Once I start using the mdio node it forces me to define all the PHYs which
were defined as ports.
Try setting ds->slave_mii_bus to the MDIO bus you register via
of_mdiobus_register().
That seems to be the case already, under mt7530_setup_mdio():
bus = devm_mdiobus_alloc(dev);
if (!bus)
return -ENOMEM;
ds->slave_mii_bus = bus;
The bus is registered with devm_of_mdiobus_register(), if that matters.
(My current knowledge about OF or OF helpers for MDIO is next to nothing.)
The same behaviour is there.
Arınç
