>From Chris Ball:
> > Some SD host controllers (noticed on an integrated JMicron
> > SD reader on an HP Pavilion dv5-1250eo laptop) don't update
> > the dma address register before signaling a dma interrupt due
> > to a dma boundary. Update the register manually to the next
> > boundary (by default 512KiB), at which the transfer stopped.
> >
> > As long as each transfer is at most 512KiB in size (guaranteed
> > by a BUG_ON in sdhci_prepare_data()) and the boundary is kept
> > at the default value, this fix is needed at most once per
> > transfer. Smaller boundaries are taken care of by counting
> > the transferred bytes.
> >
> > Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=28462
> >
> > Signed-off-by: Mikko Vinni <[email protected]>
>
> I know you posted this as an RFC, but I've pushed it to mmc-next for
> testing now, and will plan on merging it for .40 if everything goes well.
Ok, thanks.
Mikko
> Thanks very much!
>
> - Chris.
>
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