Re: [PATCH 21/20] ata_piix: add new PIIX_FLAG_* flags

[Sergei Shtylyov]

Hello.

On 08-02-2011 21:18, Bartlomiej Zolnierkiewicz wrote:

> > > Turn open-coded checks in piix_set_timings() into PIIX_FLAG_* flags
> > > per suggestion from Alan Cox.

> > > Suggested-by: Alan Cox<alan@xxxxxxxxxxxxxxxxxxx>
> > > Signed-off-by: Bartlomiej Zolnierkiewicz<bzolnier@xxxxxxxxx>

> > [...]

> > > Index: b/drivers/ata/ata_piix.c
> > > ===================================================================
> > > --- a/drivers/ata/ata_piix.c
> > > +++ b/drivers/ata/ata_piix.c
> > > @@ -133,6 +133,8 @@ enum {
> > >         PIIX_FLAG_CHECKINTR     = (1<<  28), /* make sure PCI INTx enabled
> > > */
> > >         PIIX_FLAG_SIDPR         = (1<<  29), /* SATA idx/data pair regs */
> > > +       PIIX_FLAG_NO_SITRE      = (1<<  30), /* no SITRE register */

> >    The register in question is called SIDETIM, SITRE is a bit that enables
> > its use.

> ICH4-M databook that I have at hand (Intel IDE PRM seems to be gone
> from Intel's website, though I'm sure I have a backup _somewhere_) it

   If you mean ICH IDE Controller PRM (29860004.pdf), it indeed calls the 
register *SITR* (yet it has SIDETIM mentioned in the table 37 :-). Intel seems 
 not very consistent in its documentation. :-)

> Thanks,
> Bartlomiej

WBR, Sergei
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