From: jgunthorpe@obsidianresearch.com (Jason Gunthorpe)
To: linux-arm-kernel@lists.infradead.org
Subject: mvebu-mbus: defining a DT binding
Date: Mon, 8 Apr 2013 11:03:10 -0600 [thread overview]
Message-ID: <20130408170310.GB30824@obsidianresearch.com> (raw)
In-Reply-To: <201304061039.56241.arnd@arndb.de>
On Sat, Apr 06, 2013 at 10:39:56AM +0200, Arnd Bergmann wrote:
> > Realistically this size should never be used so it doesn't matter if
> > it is 4G or 4G-1 - though obviously 4G is preferred in cases where
> > size cells is 2. :)
>
> But the PCI bus already is required to have #size-cells=<2>, and
> we would only use this in the ranges property of the PCI node, right?
Yes, my bad, you are correct.
> > So.. I don't think it matters today for mvebu, but something to think
> > about - shuffling the firmware's address map could be dangerous.
>
> I would at least expect a secure-mode firmware to prevent the OS
> from changing any mappings that the firmware relies on, but I see
> what you mean.
Right.
Jason
next prev parent reply other threads:[~2013-04-08 17:03 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-05 13:02 mvebu-mbus: defining a DT binding Thomas Petazzoni
2013-04-05 13:17 ` Arnd Bergmann
2013-04-05 13:51 ` Thomas Petazzoni
2013-04-05 14:36 ` Arnd Bergmann
2013-04-05 17:07 ` Jason Gunthorpe
2013-04-05 17:28 ` Arnd Bergmann
2013-04-05 17:48 ` Jason Gunthorpe
2013-04-05 19:49 ` Arnd Bergmann
2013-04-05 20:36 ` Jason Gunthorpe
2013-04-05 21:01 ` Arnd Bergmann
2013-04-05 21:21 ` Jason Gunthorpe
2013-04-06 8:39 ` Arnd Bergmann
2013-04-08 17:03 ` Jason Gunthorpe [this message]
2013-04-05 16:27 ` Jason Gunthorpe
2013-04-05 16:58 ` Arnd Bergmann
2013-04-05 17:29 ` Jason Gunthorpe
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