[U-Boot] [PATCH] i.MX28: Lower the amount of blocks transfered in one DMA cycle

[Marek Vasut]

Dear Fabio Estevam,

> Hi Marek,
> 
> On 4/9/12, Marek Vasut <marex at denx.de> wrote:
> > Some MMC cards, like my ancient 32.0MB SanDisk RS-MMC cards had issue if
> > b_max
> > was set to 0x40 and DMA was enabled. Lower this value to 0x20, which
> > allows these cards to work too.
> 
> I know this is off topic here, but I am wondering whether the mxs mmc
> driver in the kernel is able to handle this card correctly or not.

Linux does, but I think there must be some limit to multiblock transfers there, 
otherwise it'd fail too.

> Regards,
> 
> Fabio Estevam

Best regards,
Marek Vasut