[U-Boot] [PATCH v4 3/3] cmd: mdio: Add new parameter to access MMD PHY registers

[Carlo Caione]

On 06/02/2019 03:31, Joe Hershberger wrote:

/cut
> Perhaps the default can be to attempt to auto select, but if it is
> ambiguous, require the explicit specification. It could follow a
> similar approach to the "md" command.  We can add the ability to add
> ".22" and ".45" to the mdio command to explicitly select.

What about we go back to have a generic phy_{r|w}_mmd() and (in this order):

1) If the PHY driver is defining a generic {r|w}_mmd() hook we use that.
2) We do direct C45 access if (phy_driver->features & PHY_10G_FEATURES)
3) We do direct C22 access if (devad == MDIO_DEVAD_NONE)
4) We do indirect C22 access to C45 in all the other cases

Se we can have one single "mdio" command for all the cases.

--
Carlo Caione