Re: [PATCH] dw_mmc: Add Synopsys DesignWare mmc host driver.

Chris Ball
2010-12-09T16:01:58Z

Hi Will,

On Thu, Dec 09, 2010 at 12:11:06PM +0000, Will Newton wrote:
> > Is there something we could depend on that would stop this driver being
> > presented to everyone, without being far too specific?  At the moment
> > we'd be making x86 desktop users say whether they have this IP, which
> > isn't good.  Are the architectures that use this IP already upstream?
> > Are they all ARM architectures, for instance?
>
> I don't know of any architectures upstream that use this IP block. There is an
> SoC from NXP that uses this it but it is not upstream:
>
> http://ics.nxp.com/support/software/lpc313x.bsp.linux/
>
> The architecture we tested and debugged this driver on is not upstream either
> unfortunately. :-/

Okay. I think "depends on ARM" is appropriate for now, and we could
expand that later if the block appears in a MIPS SoC or something.
Does that work for you?

> The driver is available at the link above, I can add the URL to the comment
> if that would be helpful.

Sure, sounds good.

> > Hm, what's the relationship between NXP and Imagination here?  If
> > you're submitting a driver with NXP copyright, I think we should have
> > a Signed-off-by line from whomever owns the copyright/wrote that code.
> > If that's you, that's fine, but it's unclear to me.
>
> We both have SoCs with this IP block in it, other than that I don't think
> there has been any communication between NXP and Imagination about this driver.
> Hence the lack of SOB from the original authors.
>
> The driver is available publically under the GPL, so it was my
> understanding that
> no SOB was required as long as we keep appropriate copyright credit in the code.

Okay, makes sense. Thanks,

--
Chris Ball <cjb@laptop.org> <http://printf.net/>
One Laptop Per Child