Re: [patch 5/5] [RFC] Add MMC Password Protection (lock/unlock) supportV7: mmc_omap_dma.diff

From: Anderson Briglia
Date: Mon Dec 04 2006 - 11:19:34 EST


ext Pierre Ossman wrote:
Anderson Briglia wrote:
This patch is needed only for lock/unlock commands. So, it's necessary to
make MMC omap works when using that feature. It's not a generic patch.
But I can take off this one from the series and send after (if) the
series
is integrated.


The patches are marked "[RFC]" which I interpret as that I shouldn't
merge it. Is this incorrect?

Yes, you're right. But I believe this code is almost "ready" to be applied, do
you agree?
The next series I'll send without the "[RFC]" mark, what do you think?


frame depends on data->blksz. When we were using data->blksz_bits
everything was
ok because we always had a multiple of 16 bits (2 bytes). Once a pwd
can has a size
not multiple of 2, the value must be rounded.
According to MMC OMAP Technical Reference Manual, because of each DMA
transfer is of
equal size, it is necessary to have the block size of the transfer be
a multiple of
the DMA write access size (which is 2 bytes).


This sounds very generic and not something that is specific to the
password command.

I'm still investigating where is the problem.
Actually this patch will not be included on the next series, as you
suggested. But it is still needed to make MMC lock/unlock works for
OMAP.

Best regards,

Anderson Briglia
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/