RE: MUSB regression in 2.6.31-rc6

Gupta, Ajay Kumar
2009-08-16T03:47:59Z

> > > @@ -13,6 +13,7 @@ config USB_MUSB_HDRC
> > > select NOP_USB_XCEIV if ARCH_DAVINCI
> > > select TWL4030_USB if MACH_OMAP_3430SDP
> > > select NOP_USB_XCEIV if MACH_OMAP3EVM
> > > + select NOP_USB_XCEIV if MACH_OMAP3_BEAGLE
> >
> > Shouldn't we be selecting TWL4030_USB if MACH_OMAP3_BEAGLE.
> > The beagleboard does use the PHY in the TWL4030, and not
> > a transparent PHY.
> >
> Could be. I have no very much idea of these :-)

Beagle has to use TWL4030_USB only and not NOP_USB_XCEIV.

The NOP registration was removed from common file usb-musb.c
to board specific file because different board uses different transceiver.

>
> I happened to have both of these below enabled and 2.6.31-rc5 was still
> booting.
>
> CONFIG_TWL4030_USB=y
> CONFIG_NOP_USB_XCEIV=y
>
> But anyway, I don't get Beagle booting with 2.6.31-rc6 if I disable any
> of them and IRCC another oops will follow if both are disabled.

For Beagle; only CONFIG_TWL4030_USB=y is required and should work with that alone.

> There's a patch from me adding back the twl4030_usb pdata to beagle
> board-file and another one from Paul which changed the defconfig.

It seems this dependency might be the cause why CONFIG_TWL4030_USB=y alone
didn't work as reported by Nikula.

> It should be easy to find on the archives. Eduardo Valentin reported
> that to me so I was asking him to test the stuff for me.