On Tue, 2016-01-26 at 18:09 -0800, Andrey Smirnov wrote: > On Tue, Jan 26, 2016 at 1:55 PM, Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote: > > On Mon, Jan 25, 2016 at 09:55:58PM -0800, Andrey Smirnov wrote: > >> Add commands for low-level access to MDIO bus. > > > > Do we really need this? We can already read/write phy registers using > > /dev/phyx which imo is quite convenient since it can be accessed with > > regular md/mw commands. > > > Just to explain the purpose of this patch -- there are number of > reasons we might want to be able to access "unregistered" PHYs: > > - Not all MDIO attached devices would have PHYSID1,2 registers > available which might cause mdiobus_scan() to not detect those PHYs > > - MDIO bus troubleshooting Maybe instead have a command that adds a phydev to a mdio bus? So if you wanted to issue commands to some address that doesn't have a phy detected you could add a dummy phy using this command and then use standard md/mw and so on commands with it. There is still a new command but it does not have to duplicate existing functionality this way. _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
