[U-Boot] [PATCH v3 3/7] [REPOST-1] gpio: Add Multi-Function-Pin configuration driver for Marvell SoCs

[Prafulla Wadaskar]

> -----Original Message-----
> From: Lei Wen [mailto:adrian.wenl at gmail.com]
> Sent: Wednesday, December 01, 2010 7:51 PM
> To: Prafulla Wadaskar
> Cc: u-boot at lists.denx.de; Eric Miao; Manas Saksena; Lei Wen; Yu Tang;
> Ashish Karkare; Kiran Vedere; Prabhanjan Sarnaik
> Subject: Re: [U-Boot] [PATCH v3 3/7] [REPOST-1] gpio: Add Multi-Function-
> Pin configuration driver for Marvell SoCs
> 
> Hi Prafulla,
...snip...
> > +
> > +               /* the offset address are divided in three regions and
> not
> > +                * consecutive, this corrects the same (Ref: Specs:
> A1.1) */
> > +               p_mfpr = (u32 *)MFPR_BASE;
> > +               if ( mfpr_no < 37)
> > +                       p_mfpr += (0x004c / 4) + mfpr_no;
> > +               else if ( mfpr_no >= 56)
> > +                       p_mfpr += (0x00e0 / 4) + (mfpr_no - 56);
> > +               else
> > +                       p_mfpr += (mfpr_no - 37);
> 
> This three regions is only meaningful for armada100, so when we use
> the mfp.c to other cpu, like pxa920,
> how could we reuse this setting? Obviously, pxa920 is different with
> armada100 regions arrangement, with
> the start mfp of ND_IO[15].

Currently mfp is added for armada100, I don't know what will be diffs with other SoCs.
When other SoC will come up, we will modify this file :-)

Regards..
Prafulla . .