From: Wolfgang Grandegger <wg@grandegger•com>
To: Kumar Gala <galak@kernel•crashing.org>
Cc: Linuxppc-dev@ozlabs•org, David Gibson <david@gibson•dropbear.id.au>
Subject: Re: [PATCH 1/4] [POWERPC] 85xx: add board support for the TQM8548 modules
Date: Tue, 03 Jun 2008 12:08:30 +0200 [thread overview]
Message-ID: <4845181E.8040603@grandegger.com> (raw)
In-Reply-To: <479BA7CE-CD12-4935-87EB-E69025D408E6@kernel.crashing.org>
Kumar Gala wrote:
>
> On Jun 1, 2008, at 9:03 PM, David Gibson wrote:
>
>> On Fri, May 30, 2008 at 08:49:45AM +0200, Wolfgang Grandegger wrote:
>>> This patch adds support for the TQM8548 modules from TQ-Components
>>> GmbH (http://www.tqc.de).
>>
>> [snip]
>>> index 0000000..d09250a
>>> --- /dev/null
>>> +++ b/arch/powerpc/boot/dts/tqm8548.dts
>>> @@ -0,0 +1,370 @@
>>> +/*
>>> + * TQM8548 Device Tree Source
>>> + *
>>> + * Copyright 2006 Freescale Semiconductor Inc.
>>> + * Copyright 2008 Wolfgang Grandegger <wg@denx•de>
>>> + *
>>> + * This program is free software; you can redistribute it and/or
>>> modify it
>>> + * under the terms of the GNU General Public License as published
>>> by the
>>> + * Free Software Foundation; either version 2 of the License, or
>>> (at your
>>> + * option) any later version.
>>> + */
>>> +
>>> +/dts-v1/;
>>
>> [snip]
>>> + i2c@3000 {
>>> + #address-cells = <1>;
>>> + #size-cells = <0>;
>>> + cell-index = <0>;
>> [...]
>>> + enet0: ethernet@24000 {
>>> + cell-index = <0>;
>> [...]
>>> + serial0: serial@4500 {
>>> + cell-index = <0>;
>> [...]
>>> + pci0: pci@e0008000 {
>>> + cell-index = <0>;
>>
>> You have a whole lot of 'cell-index' properties through both these
>> trees, and they all look wrong. cell-index is a hack, which should be
>> avoided wherever practical - it should only be used when the index is
>> used to offset into some global register block, never simply to
>> differentiate (use reg for that) or name the devices (use aliases for
>> that).
>
> this is why FSL device tree's have cell-index. We have global control
> registers that need to know such things.
Should I remove them or not? OF is still a mystery for me :-(.
Wolfgang.
next prev parent reply other threads:[~2008-06-03 10:08 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-30 6:49 [PATCH 0/4] 85xx: Add suport for TQM8548 and some TQM85xx fixes Wolfgang Grandegger
2008-05-30 6:49 ` [PATCH 1/4] [POWERPC] 85xx: add board support for the TQM8548 modules Wolfgang Grandegger
2008-05-30 6:49 ` [PATCH 2/4] [POWERPC] 85xx: support for the TQM8548 module using the big Flash Wolfgang Grandegger
2008-05-30 6:49 ` [PATCH 3/4] [POWERPC] 85xx: add local bus nodes for Flash and CAN to tqm8560.dts Wolfgang Grandegger
2008-05-30 6:49 ` [PATCH 4/4] [POWERPC] 85xx: correct vendor prefix in DTS files for TQM85xx modules Wolfgang Grandegger
2008-05-30 12:28 ` [PATCH 2/4] [POWERPC] 85xx: support for the TQM8548 module using the big Flash Anton Vorontsov
2008-05-30 18:02 ` Wolfgang Grandegger
2008-05-30 20:01 ` Kumar Gala
2008-05-30 20:07 ` Scott Wood
2008-05-30 20:10 ` Kumar Gala
2008-05-30 7:01 ` [PATCH 1/4] [POWERPC] 85xx: add board support for the TQM8548 modules Stephen Rothwell
2008-05-30 7:12 ` Wolfgang Grandegger
2008-05-30 8:24 ` Arnd Bergmann
2008-06-02 2:03 ` David Gibson
2008-06-02 6:31 ` Wolfgang Grandegger
2008-06-02 23:13 ` Kumar Gala
2008-06-03 10:08 ` Wolfgang Grandegger [this message]
2008-06-03 14:33 ` Kumar Gala
2008-06-03 22:39 ` David Gibson
2008-06-04 9:43 ` Wolfgang Grandegger
2008-06-04 13:27 ` Kumar Gala
2008-06-05 6:43 ` Wolfgang Grandegger
2008-06-05 7:43 ` Kumar Gala
2008-06-05 7:49 ` Wolfgang Grandegger
2008-06-05 11:00 ` David Gibson
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