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From: Scott Wood <scottwood@freescale.com>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, devicetree-discuss@lists.ozlabs.org,
	Timur Tabi <timur@freescale.com>
Subject: Re: [PATCH] powerpc/fsl: add device tree binding for QE firmware
Date: Thu, 25 Mar 2010 10:16:55 -0500	[thread overview]
Message-ID: <4BAB7E67.6040707@freescale.com> (raw)
In-Reply-To: <65327.84.105.60.153.1269481760.squirrel@gate.crashing.org>

Segher Boessenkool wrote:
> As far as I can see, you want that indirection node so that you
> safe space in the DTB.

Probably more of a general desire to not duplicate things that don't 
need to be duplicated...  I don't think the space issue is critical in 
this particular case.

> With real OF it is trivial to not have
> multiple copies of the data if you want a few properties with
> the same data.  There is no reason this could not be done in DTB
> as well (and some way in DTS to express that, or maybe the tools
> could auto-detect it, whatever).

You object to some slight complexity in the device binding, and want to 
replace it with an incompatible, more complex change to the blob format?

>>> That is a good question.  Why is it necessary to pass the blob via the
>>> tree?
>> Because sometimes the firmware is needed before networking or serial I/O
>> can function.
> 
> Can't you link it into the kernel then?  Seems a better place for
> it to me.  Of course you said something about GPL, heh.

U-Boot needs it too.

-Scott

WARNING: multiple messages have this Message-ID (diff)
From: Scott Wood <scottwood-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
To: Segher Boessenkool
	<segher-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Cc: linuxppc-dev-mnsaURCQ41sdnm+yROfE0A@public.gmane.org,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	Timur Tabi <timur-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Subject: Re: [PATCH] powerpc/fsl: add device tree binding for QE firmware
Date: Thu, 25 Mar 2010 10:16:55 -0500	[thread overview]
Message-ID: <4BAB7E67.6040707@freescale.com> (raw)
In-Reply-To: <65327.84.105.60.153.1269481760.squirrel-JorI+TVEvZrY24RiXHRV3ti2O/JbrIOy@public.gmane.org>

Segher Boessenkool wrote:
> As far as I can see, you want that indirection node so that you
> safe space in the DTB.

Probably more of a general desire to not duplicate things that don't 
need to be duplicated...  I don't think the space issue is critical in 
this particular case.

> With real OF it is trivial to not have
> multiple copies of the data if you want a few properties with
> the same data.  There is no reason this could not be done in DTB
> as well (and some way in DTS to express that, or maybe the tools
> could auto-detect it, whatever).

You object to some slight complexity in the device binding, and want to 
replace it with an incompatible, more complex change to the blob format?

>>> That is a good question.  Why is it necessary to pass the blob via the
>>> tree?
>> Because sometimes the firmware is needed before networking or serial I/O
>> can function.
> 
> Can't you link it into the kernel then?  Seems a better place for
> it to me.  Of course you said something about GPL, heh.

U-Boot needs it too.

-Scott

  parent reply	other threads:[~2010-03-25 15:17 UTC|newest]

Thread overview: 86+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-23 21:42 [PATCH] powerpc/fsl: add device tree binding for QE firmware Timur Tabi
2010-03-23 21:42 ` Timur Tabi
2010-03-24  6:07 ` Grant Likely
2010-03-24  6:07   ` Grant Likely
2010-03-24 12:05   ` Timur Tabi
2010-03-24 12:05     ` Timur Tabi
2010-03-24 17:00     ` Segher Boessenkool
2010-03-24 17:00       ` Segher Boessenkool
2010-03-24 17:07       ` Grant Likely
2010-03-24 17:07         ` Grant Likely
2010-03-24 17:31         ` Timur Tabi
2010-03-24 17:31           ` Timur Tabi
2010-03-24 18:10           ` Grant Likely
2010-03-24 18:10             ` Grant Likely
2010-03-24 18:21             ` Mitch Bradley
2010-03-24 18:21               ` Mitch Bradley
2010-03-24 18:25             ` Timur Tabi
2010-03-24 18:24           ` M. Warner Losh
2010-03-24 18:31             ` Timur Tabi
2010-03-24 18:31               ` Timur Tabi
2010-03-25  1:49           ` Segher Boessenkool
2010-03-25  1:49             ` Segher Boessenkool
2010-03-25 14:42             ` Timur Tabi
2010-03-25 14:42               ` Timur Tabi
2010-03-25 16:10               ` Grant Likely
2010-03-25 16:10                 ` Grant Likely
2010-03-25 16:34                 ` Scott Wood
2010-03-25 16:34                   ` Scott Wood
2010-03-25 16:46                   ` Timur Tabi
2010-03-25 16:46                     ` Timur Tabi
2010-03-26 18:23                     ` Rafal Jaworowski
2010-03-26 18:23                       ` Rafal Jaworowski
2010-03-25 23:53               ` M. Warner Losh
2010-03-25 23:53                 ` M. Warner Losh
2010-03-26  0:22                 ` Timur Tabi
2010-03-26  0:22                   ` Timur Tabi
2010-03-25 15:16             ` Scott Wood [this message]
2010-03-25 15:16               ` Scott Wood
2010-03-25 15:29               ` Mitch Bradley
2010-03-25 15:29                 ` Mitch Bradley
2010-03-25 16:16                 ` Grant Likely
2010-03-25 16:16                   ` Grant Likely
2010-03-25 16:36                   ` Timur Tabi
2010-03-25 16:36                     ` Timur Tabi
2010-03-25 16:50                     ` Scott Wood
2010-03-25 16:50                       ` Scott Wood
2010-03-25 16:59                     ` Grant Likely
2010-03-25 16:59                       ` Grant Likely
2010-03-25 17:03                       ` Timur Tabi
2010-03-25 17:35                         ` Grant Likely
2010-03-25 17:35                           ` Grant Likely
2010-03-25 18:05                           ` Timur Tabi
2010-03-25 19:53                           ` Scott Wood
2010-03-25 19:53                             ` Scott Wood
2010-03-25 20:04                             ` Timur Tabi
2010-03-25 21:54                               ` Grant Likely
2010-03-25 21:54                                 ` Grant Likely
2010-03-25 22:19                                 ` Timur Tabi
2010-03-25 22:19                                   ` Timur Tabi
2010-03-25 21:39                             ` Grant Likely
2010-03-25 21:39                               ` Grant Likely
2010-03-25 22:47                               ` Scott Wood
2010-03-25 22:47                                 ` Scott Wood
2010-03-25 21:22                       ` David Gibson
2010-03-25 21:22                         ` David Gibson
2010-03-26  1:26                     ` Grant Likely
2010-03-26  1:26                       ` Grant Likely
2010-03-26 15:17                       ` Timur Tabi
2010-03-26 15:17                         ` Timur Tabi
2010-03-26 18:20                         ` Grant Likely
2010-03-26 18:20                           ` Grant Likely
2010-03-26 18:39                           ` Timur Tabi
2010-03-26 18:44                             ` Grant Likely
2010-03-26 18:44                               ` Grant Likely
2010-03-26 18:48                               ` Timur Tabi
2010-03-26 18:48                                 ` Timur Tabi
2010-03-26 18:56                                 ` Grant Likely
2010-03-26 18:56                                   ` Grant Likely
2010-03-26 18:58                                 ` Mitch Bradley
2010-03-26 18:58                                   ` Mitch Bradley
2010-03-26 19:07                                   ` Grant Likely
2010-03-26 19:07                                     ` Grant Likely
2010-03-26 18:48                             ` Mitch Bradley
2010-03-26 18:48                               ` Mitch Bradley
2010-03-24 18:27         ` Scott Wood
2010-03-24 18:27           ` Scott Wood

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