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From: Segher Boessenkool <segher@kernel.crashing.org>
To: "Zhang Wei-r63237" <Wei.Zhang@freescale.com>
Cc: linuxppc-dev@ozlabs.org, paulus@samba.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/5 v3] Add the explanation and a sample of RapidIO OF node to the document of booting-without-of.txt file.
Date: Tue, 31 Jul 2007 18:15:48 +0200	[thread overview]
Message-ID: <363cce0e331102968838e3cb9db5f166@kernel.crashing.org> (raw)
In-Reply-To: <46B96294322F7D458F9648B60E15112C74D158@zch01exm26.fsl.freescale.net>

>>> +    - #address-cells : Address representation for
>> "rapidio" devices.
>>> +      This field represents the number of cells needed to represent
>>> +      the RapidIO address of the registers.
>>
>> Can you explain this a little further.  I'm a bit confused by
>> 'RapidIO address of the registers'.
>>
> I want to present "This field represents the number of cells [needed to
> represent the RapidIO address] of the registers."
> Maybe I should remove 'of the registers' to be more clear.

This is completely content-free anyway; the semantics of
#address-cells (and #size-cells, which you forgot) are
already defined in the base OF spec; what you _should_ be
defining here is a) the required value of #address-cells
for a rapidio bus; and b) how addresses on that bus are
represented (simply as a 64-bit integer, encoded as a
pair of 32-bit integers as usual; but it needs to be said).


Segher

  reply	other threads:[~2007-07-31 16:15 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-26  8:42 [PATCH 0/5 v3] Porting RapidIO driver from ppc to powerpc architecture and adding memory mapped RapidIO driver Zhang Wei
2007-07-26  8:42 ` [PATCH 1/5 v3] Add the explanation and a sample of RapidIO OF node to the document of booting-without-of.txt file Zhang Wei
2007-07-26  8:42   ` [PATCH 2/5 v3] Add RapidIO OF-node to the MPC8641HPCN board dts file Zhang Wei
2007-07-26  8:42     ` [PATCH 3/5 v3] Add the platform device support with RapidIO to MPC8641HPCN platform Zhang Wei
2007-07-26  8:42       ` [PATCH 4/5 v3] Add RapidIO support to powerpc architecture Zhang Wei
2007-07-26  8:42         ` [PATCH 5/5 v3] Add the memory management driver to RapidIO Zhang Wei
2008-01-24  7:01           ` Kumar Gala
2007-07-27  8:12         ` [PATCH 4/5 v3] Add RapidIO support to powerpc architecture Stephen Rothwell
2007-07-27  8:22         ` Kumar Gala
2007-07-27  9:03           ` Zhang Wei-r63237
2007-07-27  7:54       ` [PATCH 3/5 v3] Add the platform device support with RapidIO to MPC8641HPCN platform Stephen Rothwell
2007-07-29 13:56       ` Arnd Bergmann
2007-07-30  8:26         ` Zhang Wei-r63237
2007-07-27  8:51   ` [PATCH 1/5 v3] Add the explanation and a sample of RapidIO OF node to the document of booting-without-of.txt file Kumar Gala
2007-07-27  9:12     ` Zhang Wei-r63237
2007-07-31 16:15       ` Segher Boessenkool [this message]
2007-07-31 16:19   ` Segher Boessenkool
2007-07-27  8:28 ` [PATCH 0/5 v3] Porting RapidIO driver from ppc to powerpc architecture and adding memory mapped RapidIO driver Kumar Gala
2007-10-29 19:38 ` Phil Terry
2007-10-29 20:30   ` Kumar Gala
2007-10-30  8:40     ` Zhang Wei-r63237
2007-11-09 22:34       ` Randy Vinson
2007-11-12  2:18         ` Zhang Wei-r63237

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