Messages in this thread | | | Date | Sat, 25 Nov 2006 09:59:31 +0100 | From | Pierre Ossman <> | Subject | Re: [patch 5/5] [RFC] Add MMC Password Protection (lock/unlock) support V7: mmc_omap_dma.diff |
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Anderson Briglia wrote: > OMAP platform specific patch. > - Adjust the frame size for DMA transfers. > > Signed-off-by: Anderson Briglia <anderson.briglia <at> indt.org.br> > Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br> >
This looks like a generic patch for OMAP and shouldn't be in this set.
> Index: linux-omap-2.6.git/drivers/mmc/omap.c > =================================================================== > --- linux-omap-2.6.git.orig/drivers/mmc/omap.c 2006-11-22 > 09:07:25.000000000 -0400 > +++ linux-omap-2.6.git/drivers/mmc/omap.c 2006-11-22 > 09:19:03.000000000 -0400 > @@ -629,6 +629,14 @@ mmc_omap_prepare_dma(struct mmc_omap_hos > > data_addr = host->phys_base + OMAP_MMC_REG_DATA; > frame = data->blksz; > + > +#ifdef CONFIG_MMC_PASSWORDS > + /* MMC LOCK/UNLOCK: Do frame size multiple of two. This is > + * needed for DMA transfers to work properly, once > + * the block size depends on MMC password length. > + */ > + frame += frame&0x1; > +#endif > count = sg_dma_len(sg); > > if ((data->blocks == 1) && (count > (data->blksz))) >
Now this you're going to have to explain to me. Especially the part where why this is specific to the lock commands.
-- -- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org
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