Hi Roger, On Tuesday 03 December 2013 11:36:57 Roger Quadros wrote: > On 12/03/2013 05:54 AM, Laurent Pinchart wrote: > > Hi Roger, > > > > On Monday 25 November 2013 15:55:45 Roger Quadros wrote: > >> Beagle (rev. C4) and Beagle-XM (all revs) need VAUX2 1.8V supply > >> for the USB PHY. > >> > >> As the generic PHY driver can't handle more than one supply > >> at the moment, we configure this supply to be always on. > >> This will cause a very small power impact if the USB host subsystem > >> is not in use, about 76.86 micro-W + LDO power. > >> > >> Older Beagle boards (prior to C4) don't have VAUX2 connected anywhere, > >> so there won't be any functional impact on those boards other than > >> some additional LDO power consumption. > > > > Do I need any patch other than this one (on top of v3.13-rc1) to enable > > the ethernet port on a Beagleboard-xM rev B ? Here's what the kernel > > reports at boot (with ignore_loglevel set on the command line). > > It seems on Rev A/B, the power enable line for the USB hub has reversed > polarity than Rev C. > > Does the below patch work for you? It does, thank you. > If yes, how do we account for it? Do we add a new file > "omap3-beagle-xm-ab.dts" for rev A/B boards? Unless we want to add board code back with a runtime check, which I doubt would be regarded as a good idea, I don't see any other easy solution. > diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts > b/arch/arm/boot/dts/omap3-beagle-xm.dts index b39918e..434d903 100644 > --- a/arch/arm/boot/dts/omap3-beagle-xm.dts > +++ b/arch/arm/boot/dts/omap3-beagle-xm.dts > @@ -78,6 +78,7 @@ > regulator-max-microvolt = <3300000>; > gpio = <&twl_gpio 18 0>; /* GPIO LEDA */ > startup-delay-us = <70000>; > + enable-active-high; > }; > > /* HS USB Host PHY on PORT 2 */ -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
