> -----Original Message----- > From: Linuxppc-dev [mailto:linuxppc-dev- > bounces+b21989=freescale....@lists.ozlabs.org] On Behalf Of Scott Wood > Sent: Friday, August 01, 2014 2:31 AM > To: Medve Emilian-EMMEDVE1 > Cc: linuxppc-...@ozlabs.org > Subject: Re: [PATCH v2 5/7] powerpc/corenet: Add MDIO bus muxing support > to the board device tree(s) > > On Thu, 2014-07-31 at 00:48 -0500, Emil Medve wrote: > > Hello Scott, > > > > > > On 07/31/2014 12:28 AM, Scott Wood wrote: > > > On Wed, 2014-07-30 at 23:35 -0500, Emil Medve wrote: > > >> Hello Scott, > > >> > > >> > > >> On 07/30/2014 09:30 PM, Scott Wood wrote: > > >>> On Wed, 2014-07-30 at 16:52 -0500, Emil Medve wrote: > > >>>>>>>> + mdio0: mdio <at> fc000 { > > >>>>>>>> + }; > > >>>>>>> > > >>>>>>> Why is the empty node needed? > > >>>>>> > > >>>>>> For the label > > >>>>> > > >>>>> For mdio-parent-bus, or is there some other dts layer that makes > > >>>>> this node non-empty? > > >>>> > > >>>> 'powerpc/corenet: Create the dts components for the DPAA FMan' - > > >>>> http://patchwork.ozlabs.org/patch/370872 > > >>> > > >>> Why does this patch define the mdio0 label for mdio@e1120, but not > > >>> define a label for any other node? > > >> > > >> Only MDIO controllers that are pinned out have these labels. Only > > >> pinned out MDIO(s) are capable of controlling external PHY(s) via > > >> these board level MDIO buses > > > > > > Is there any reason to describe non-pinned-out MDIO controllers at > all? [S.H] Regarding the pinned-out MDIO controllers and non-pinned-out MDIO controllers, How to differentiate them?
> > > > Yes. For the internal TBI PHY(s). Each MAC supporting SGMII has a TBI > > PHY that is attached to the MDIO controller of the respective MAC > [S.H] there are multiple internal PHYs on Fman-v3 SOCs. Each one is used for Specific function, for ex. on T4 there are XFI, SGMII, QSGMII. Will all of them be listed in the DTS? Thanks! -Shaohui _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev