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From: Wolfgang Denk <wd@denx.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>
Subject: Re: RFC: Location for Device Tree Sources?
Date: Wed, 09 Aug 2006 16:03:36 +0200	[thread overview]
Message-ID: <20060809140336.9E3C93535D4@atlas.denx.de> (raw)
In-Reply-To: Your message of "Wed, 09 Aug 2006 13:18:29 +0200." <1155122309.4040.94.camel@localhost.localdomain>

In message <1155122309.4040.94.camel@localhost.localdomain> you wrote:
>
> > Where should we place the sources for the OF Flat Device
> > Tree source files?  They used to be in U-Boot, but that
> > isn't happening any more.
> 
> Why ? While having device-tree's in zImages is good to handle firmwares
> that can't pass them, I still think that the proper thing to do is to
> have the firmware provide the DT to the kernel. Did Denk decide once for
> all against having DTs passed by uboot at all ? In which case, it's
> probably time to consider a fork...

Ben, you are mixing two things here.

I have nothing against U-Boot  passing  the  DT  to  the  kernel.  On
contrary,  if  DT's  are  used, than I think this is how it should be
done.

It's just that I think that the DT *sources* should not  be  part  of
the  U-Boot  soutrce  tree, and that the DT should be in fact part of
the kernel images that gets booted by U-Boot.

This has been discussed before (see archives), and the agreement  (?)
was  to  use  U-Boot's multifile image format for this purpose, where
you can combine a Linux kenrel image with a DT image  into  one  file
bootable by U-Boot.

Jon's question was where the source code of the DT should be placed.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
What is mind?  No matter.  What is matter?  Never mind.
                                      -- Thomas Hewitt Key, 1799-1875

  parent reply	other threads:[~2006-08-09 14:03 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-01 20:32 RFC: Location for Device Tree Sources? Jon Loeliger
2006-08-01 21:00 ` Guennadi Liakhovetski
2006-08-01 21:01   ` Matthew McClintock
2006-08-02  0:35     ` Mark A. Greer
2006-08-02  0:42       ` Mark A. Greer
2006-08-02  1:12       ` Josh Boyer
2006-08-02  3:20         ` Grant Likely
2006-08-02 13:35           ` Kumar Gala
2006-08-02 16:38             ` Tom Rini
2006-08-02 18:09               ` Matthew McClintock
2006-08-02 18:16                 ` Vitaly Bordug
2006-08-02 18:21                 ` Tom Rini
2006-08-02 18:23                   ` Jon Loeliger
2006-08-02 18:57                     ` Tom Rini
2006-08-02 20:06                       ` Kumar Gala
2006-08-03 14:49                         ` Li Yang
2006-08-03 15:47               ` Li Yang
2006-08-02 18:24             ` Mark A. Greer
2006-08-02 18:23           ` Mark A. Greer
2006-08-02 18:21             ` Grant Likely
2006-08-02 18:49               ` Mark A. Greer
2006-08-02 19:03                 ` Josh Boyer
2006-08-02 19:26                   ` Kumar Gala
2006-08-02 18:22         ` Mark A. Greer
2006-08-02 18:22           ` Matthew McClintock
2006-08-02 18:42             ` Mark A. Greer
2006-08-02 18:25           ` Jon Loeliger
2006-08-02 18:34             ` Mark A. Greer
2006-08-02 18:41           ` Brent Cook
2006-08-02 18:51             ` Mark A. Greer
2006-08-03  0:35               ` Tom Rini
2006-08-02  3:35       ` Li Yang-r58472
2006-08-04  4:51 ` Paul Mackerras
2006-08-09 11:18 ` Benjamin Herrenschmidt
2006-08-09 12:56   ` Josh Boyer
2006-08-09 16:38     ` Mark A. Greer
2006-08-09 16:48       ` Jon Loeliger
2006-08-09 17:03         ` Mark A. Greer
2006-08-09 14:03   ` Wolfgang Denk [this message]
2006-08-09 16:05     ` Benjamin Herrenschmidt
2006-08-09 18:47       ` Andy Fleming
2006-08-09 19:17       ` Wolfgang Denk
  -- strict thread matches above, loose matches on Subject: below --
2006-08-03  9:32 Milton Miller
2006-08-03 13:54 ` Tom Rini
2006-08-03 16:30   ` Milton Miller
2006-08-04  4:49   ` Paul Mackerras
2006-08-04 17:54     ` Tom Rini
2006-08-04 23:29       ` Paul Mackerras

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