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Re: EHCI of SoC

Hi! Matthias,

From: Matthias Drochner <>
Date: Sat, 11 Sep 2010 13:28:32 +0200

> said:
> > +                       if (sc->sc_flags & EHCIF_HAVE_TT)
> > [...]
> > +#define EHCI_PS_PSPD_HS        0x08000000      /*  High speed */
> The way this is put into the "ehci" namespage suggests that
> there is only a single blessed way to have a Transaction
> Translator as an integral part of an EHCI. In the spec I know,
> these bits are "reserved".
> Are these extensions somehow on a standards track? If not,
> I suggest to use a naming which makes clear that this is
> just a vendor extension. Or better, add only hooks to
> ehci.c and put the code into a new attachment frontend.

No, I track not standards.

> > +#define EHCI_PS_PSPD_HS        0x08000000      /*  High speed */

Do we create new file named ehci_vext.c?


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