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Re: [RFC PATCH 02/10] MIPS: Octeon: Add device tree source files.

To: David Daney <ddaney@caviumnetworks.com>
Subject: Re: [RFC PATCH 02/10] MIPS: Octeon: Add device tree source files.
From: David Gibson <david@gibson.dropbear.id.au>
Date: Fri, 25 Feb 2011 10:19:23 +1100
Cc: linux-mips@linux-mips.org, ralf@linux-mips.org, devicetree-discuss@lists.ozlabs.org, grant.likely@secretlab.ca, linux-kernel@vger.kernel.org
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On Wed, Feb 23, 2011 at 08:59:29AM -0800, David Daney wrote:
> On 02/22/2011 04:07 PM, David Gibson wrote:
> >On Tue, Feb 22, 2011 at 12:57:46PM -0800, David Daney wrote:
> >>Signed-off-by: David Daney<ddaney@caviumnetworks.com>
> >>---
> >>  arch/mips/cavium-octeon/.gitignore      |    2 +
> >>  arch/mips/cavium-octeon/Makefile        |   13 ++
> >>  arch/mips/cavium-octeon/octeon_3xxx.dts |  314 
> >> +++++++++++++++++++++++++++++++
> >>  arch/mips/cavium-octeon/octeon_68xx.dts |   99 ++++++++++
> >>  4 files changed, 428 insertions(+), 0 deletions(-)
> >>  create mode 100644 arch/mips/cavium-octeon/.gitignore
> >>  create mode 100644 arch/mips/cavium-octeon/octeon_3xxx.dts
> >>  create mode 100644 arch/mips/cavium-octeon/octeon_68xx.dts
> >>
> [...]
> 
> >>+    };
> >>+  };
> >
> >Uh.. where are the CPUs?
> >
> 
> The number and type of CPUs can be (and is) probed.  There is an
> existing mechanism for the bootloader to communicate which CPUs
> should be used.

Hrm, ok.

Grant,

We've seen this now on both MIPS and ARM - dts files with no cpus, on
the grounds that those can be runtime probed.  I guess it makes sense,
although a dts without cpus looks very, very odd to me.  What are your
thoughts on this?

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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