OMAP4 Panda - MMC access broken

[Sascha Hauer]

On Mon, Apr 02, 2012 at 08:07:16PM +0530, Anand Gadiyar wrote:
> On Fri, Mar 30, 2012 at 10:04 PM, Anand Gadiyar <gadiyar at gmail.com> wrote:
> 
> > Hi all,
> >
> > I've just started playing with barebox on OMAP4. I see that with "Release
> > v2011.11.0", my Panda could access the SD card contents, but with the
> > current release it can no longer do so.
> >
> > Git bisect shows commit 82db23d3f4c1de25bbd4b222a3bd9e81d00414f8 (Use
> > generic block layer to access the drives and do partition parsing) is when
> > it stopped working.
> >
> > Any pointers?
> >
> > Thanks in advance,
> > Anand
> >
> >
> Found the problem. I was using a 4GB SD card with just a single FAT32
> partition. The pentry.size is reported as 7744449 which fails the
> check_offset_value() call.
> I think this is the same issue Sanjeev reported in February.
> 
> Below patch seems to fix the issue for now. But I'm not sure what's the
> correct way to fix this.

The correct way would be to make all this stuff 64bit types. I am
working for this for quite some time and have a series for an older
barebox doing this. I would have to rebase it.

Sascha

> 
> Index: barebox/common/partitions.c
> ===================================================================
> --- barebox.orig/common/partitions.c
> +++ barebox/common/partitions.c
> @@ -129,8 +129,6 @@ static void __maybe_unused try_dos_parti
>                 /* do we have to ignore this partition due to limitations?
> */
>                 if (check_offset_value(pentry.first_sec) != 0)
>                         continue;
> -               if (check_offset_value(pentry.size) != 0)
> -                       continue;
> 
>                 if (pentry.first_sec != 0) {
>                         pd->parts[pd->used_entries].first_sec =
> pentry.first_sec;

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