On Wed, Jan 27, 2016 at 02:29:47AM +0000, Trent Piepho wrote: > 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? Or maybe even add an option to the existing miitool to do that. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
