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From: Peter Korsgaard <jacmet@sunsite.dk>
To: Scott Wood <scottwood@freescale.com>
Cc: Robert Schwebel <r.schwebel@pengutronix.de>,
	devicetree-discuss <devicetree-discuss@ozlabs.org>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.arm.linux.org.uk,
	Janboe Ye <yuan-bo.ye@motorola.com>,
	Timur Tabi <timur@freescale.com>,
	rmk@arm.linux.org.uk
Subject: Re: [RFC] [PATCH] Device Tree on ARM platform
Date: Wed, 27 May 2009 20:26:43 +0200	[thread overview]
Message-ID: <87r5ya8krg.fsf@macbook.be.48ers.dk> (raw)
In-Reply-To: <4A1D6901.2090508@freescale.com> (Scott Wood's message of "Wed\, 27 May 2009 11\:23\:29 -0500")

>>>>> "Scott" == Scott Wood <scottwood@freescale.com> writes:

Hi,

 >> Just bundle the .dtb with the kernel and they'll always be in sync. I
 >> know this isn't really in the spirit of OF, but currently imho the
 >> only realistic solution.

 Scott> That removes the ability to use the device tree to pass information
 Scott> from the bootloader, such as MAC addresses and clock frequencies.  On
 Scott> the u-boot list, you'll find people trying such hacks (which were
 Scott> rightly NACKed) as passing the information in the device's volatile
 Scott> registers (which the Linux driver must then not reset) to deal with
 Scott> ARM Linux's lack of this ability.

No, with the multi-image support U-Boot has full access to the device
tree. E.G. I adjust the flash partition list defined in the .dtb in my
board's ft_board_setup() routine.

-- 
Bye, Peter Korsgaard

  parent reply	other threads:[~2009-05-27 18:26 UTC|newest]

Thread overview: 142+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1243408083.13460.14.camel@debian-nb>
2009-05-27 14:27 ` [RFC] [PATCH] Device Tree on ARM platform Grant Likely
2009-05-27 14:39   ` Timur Tabi
     [not found]     ` <ed82fe3e0905270739k38018c87ka11f62c5977e45fb-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-27 15:05       ` Robert Schwebel
2009-05-27 16:32         ` Mark Brown
2009-05-27 18:50           ` Jon Smirl
     [not found]             ` <9e4733910905271150q1d51538draa8d039c8b147c05-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-27 22:24               ` Mark Brown
     [not found]                 ` <20090527222420.GC5591-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2009-05-28  0:04                   ` Jon Smirl
2009-05-28 13:07                     ` Mark Brown
     [not found]           ` <20090527163223.GE1970-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2009-05-27 20:42             ` Grant Likely
     [not found]               ` <fa686aa40905271342v5bc51665tb9b5d92950a43b82-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-27 21:38                 ` Mark Brown
     [not found]         ` <20090527150527.GK6805-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-27 15:39           ` Grant Likely
     [not found]             ` <fa686aa40905270839m375bbdacqb1acb1be0a2d2da0-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-27 16:20               ` Robert Schwebel
     [not found]                 ` <20090527162000.GM6805-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-27 20:35                   ` Grant Likely
     [not found]                     ` <fa686aa40905271335o1165419hda2334bef42aa3f-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-27 23:48                       ` Robert Schwebel
     [not found]                         ` <20090527234801.GP6805-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-27 23:52                           ` David Miller
2009-05-27 23:58                           ` Scott Wood
     [not found]                             ` <4A1DD3A0.3010501-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2009-05-28  0:02                               ` David Miller
2009-05-28  0:07                               ` Robert Schwebel
     [not found]                                 ` <20090528000707.GR6805-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-28  0:15                                   ` David Miller
     [not found]                                     ` <20090527.171525.204909140.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-05-28 10:37                                       ` Mark Brown
     [not found]                                         ` <20090528103745.GA19523-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2009-05-28 22:32                                           ` Grant Likely
2009-05-29 12:34                                             ` Mark Brown
     [not found]                                               ` <20090529123411.GB14650-HF5t3jzXg/6ND3a5+9QAFujbO/Zr0HzV@public.gmane.org>
2009-05-30  9:52                                                 ` Benjamin Herrenschmidt
2009-05-30 10:21                                                   ` Russell King - ARM Linux
     [not found]                                                     ` <20090530102153.GA6910-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2009-05-30 17:56                                                       ` Mark Brown
2009-06-02  7:57                                                     ` Holger Schurig
     [not found]                                                       ` <200906020957.20493.hs4233-x6+DxXLjN1AJvtFkdXX2Hg4jNU5vUVPG@public.gmane.org>
2009-06-02  9:48                                                         ` Mark Brown
2009-05-28  2:57                                   ` David Gibson
     [not found]                                     ` <20090528025718.GC1464-787xzQ0H9iRg7VrjXcPTGA@public.gmane.org>
2009-05-28  3:36                                       ` Grant Likely
2009-05-28  3:29                                   ` Grant Likely
2009-05-28  9:51                                     ` Wolfgang Denk
     [not found]                                       ` <20090528095126.99DB4832E416-C2Gvrrd9BC/j/ljBK/0BTg@public.gmane.org>
2009-05-28  9:59                                         ` David Miller
2009-05-28 10:13                                         ` Robert Schwebel
     [not found]                                           ` <20090528101339.GV6805-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-28 13:33                                             ` Jon Smirl
     [not found]                                               ` <9e4733910905280633u15546189q37a4b4080158249c-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-28 13:42                                                 ` Robert Schwebel
2009-05-28  9:38                                 ` Wolfgang Denk
2009-05-28  3:21                               ` Grant Likely
2009-05-28  3:16                           ` Grant Likely
2009-05-28  0:55                   ` Stephen Neuendorffer
2009-05-27 18:56             ` Alexander Clouter
     [not found]               ` <2ve0f6-8fn.ln1-kuKQLpWnKMRB2HF5bZY0Orm56z/blAVA@public.gmane.org>
2009-05-27 20:46                 ` Grant Likely
2009-05-27 21:32                   ` Alexander Clouter
2009-05-28 14:29                     ` Dmitry Eremin-Solenikov
2009-05-27 15:41           ` Peter Korsgaard
     [not found]             ` <87vdnm8sec.fsf-uXGAPMMVk8amE9MCos8gUmSdvHPH+/yF@public.gmane.org>
2009-05-27 16:23               ` Scott Wood
2009-05-27 17:56                 ` Russell King
     [not found]                   ` <20090527175609.GB31861-f404yB8NqCZvn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2009-05-27 19:08                     ` Scott Wood
     [not found]                       ` <4A1D8FBA.6040802-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2009-05-27 19:13                         ` Jon Smirl
2009-05-27 19:21                           ` Russell King - ARM Linux
     [not found]                             ` <20090527192116.GA31110-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2009-05-27 19:39                               ` Jean-Christophe PLAGNIOL-VILLARD
     [not found]                                 ` <20090527193927.GD30039-RQcB7r2h9QmfDR2tN2SG5Ni2O/JbrIOy@public.gmane.org>
2009-05-27 20:22                                   ` Grant Likely
     [not found]                                     ` <fa686aa40905271322x2f62c3dcs355374b30b4db3ca-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-27 20:19                                       ` Jean-Christophe PLAGNIOL-VILLARD
     [not found]                                         ` <20090527201951.GF30039-RQcB7r2h9QmfDR2tN2SG5Ni2O/JbrIOy@public.gmane.org>
2009-05-27 20:54                                           ` Grant Likely
     [not found]                                             ` <fa686aa40905271354y50b9583cp9f53c35354edc285-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-28  3:04                                               ` David Gibson
2009-05-28  7:58                                               ` Benjamin Herrenschmidt
2009-05-27 23:57                                       ` Robert Schwebel
     [not found]                                         ` <20090527235704.GQ6805-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-28  0:00                                           ` David Miller
2009-05-28  3:21                                           ` Grant Likely
     [not found]                                             ` <fa686aa40905272021w18a148caqd2b73c4448da2b28-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-28  6:34                                               ` Wolfram Sang
     [not found]                                                 ` <20090528063445.GA12004-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-28  7:55                                                   ` Benjamin Herrenschmidt
2009-05-28 13:34                                                   ` Grant Likely
2009-05-28  7:48                                           ` Benjamin Herrenschmidt
2009-05-28 14:22                                     ` Ben Dooks
2009-05-27 20:28                                   ` David Miller
     [not found]                                     ` <20090527.132827.65331718.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-05-27 20:31                                       ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-28  2:52                               ` David Gibson
     [not found]                                 ` <20090528025258.GB1464-787xzQ0H9iRg7VrjXcPTGA@public.gmane.org>
2009-05-28  4:27                                   ` David Miller
     [not found]                                     ` <20090527.212730.183576278.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-05-28  4:47                                       ` David Gibson
     [not found]                                         ` <20090528044732.GK1464-787xzQ0H9iRg7VrjXcPTGA@public.gmane.org>
2009-05-28  5:31                                           ` David Miller
     [not found]                                             ` <20090527.223147.94364683.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-05-28  5:47                                               ` David Gibson
2009-05-28  7:47                               ` Benjamin Herrenschmidt
2009-05-28 14:17                           ` Ben Dooks
2009-05-28 14:24                             ` Robert Schwebel
     [not found]                             ` <20090528141743.GA16199-SMNkleLxa3Z6Wcw2j4pizdi2O/JbrIOy@public.gmane.org>
2009-05-28 14:47                               ` Grant Likely
2009-05-27 19:29                         ` Russell King
2009-05-27 19:47                           ` Sergei Shtylyov
     [not found]                           ` <20090527192909.GA32398-f404yB8NqCZvn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2009-05-27 19:53                             ` Scott Wood
     [not found]                               ` <4A1D9A1E.80603-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2009-05-27 19:54                                 ` Timur Tabi
     [not found]                                   ` <4A1D9A66.5020002-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2009-05-27 20:25                                     ` David Miller
     [not found]                                       ` <20090527.132553.40558501.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-05-27 20:27                                         ` Timur Tabi
     [not found]                                           ` <4A1DA24D.5000101-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2009-05-27 20:55                                             ` David Miller
     [not found]                                               ` <20090527.135500.217447785.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-05-27 23:26                                                 ` Robert Schwebel
2009-05-27 20:35                                       ` M. Warner Losh
2009-05-27 20:14                                 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-27 20:23                             ` David Miller
     [not found]                               ` <20090527.132328.78091350.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-05-27 20:27                                 ` Jean-Christophe PLAGNIOL-VILLARD
     [not found]                                   ` <20090527202701.GA16219-RQcB7r2h9QmfDR2tN2SG5Ni2O/JbrIOy@public.gmane.org>
2009-05-27 20:48                                     ` Josh Boyer
2009-05-27 20:56                                     ` David Miller
2009-05-27 20:52                             ` Mark Brown
     [not found]                               ` <20090527205218.GA5591-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2009-05-27 21:05                                 ` Grant Likely
     [not found]                                   ` <fa686aa40905271405pc2f1738gc8dd139f61a0e27-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-28  0:11                                     ` Jon Smirl
2009-05-28 12:43                                     ` Sascha Hauer
2009-05-28 13:18                                       ` Thomas Gleixner
     [not found]                                         ` <alpine.LFD.2.00.0905281457170.3397-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-05-28 15:04                                           ` Sascha Hauer
     [not found]                                             ` <20090528150409.GO22742-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-28 15:27                                               ` Thomas Gleixner
2009-05-29  0:51                                               ` Benjamin Herrenschmidt
2009-05-29  7:52                                                 ` Sascha Hauer
     [not found]                                                   ` <20090529075238.GC24565-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-29  9:08                                                     ` Benjamin Herrenschmidt
2009-05-31 10:52                                                 ` Russell King - ARM Linux
     [not found]                                       ` <20090528124307.GN22742-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-05-28 14:31                                         ` Grant Likely
2009-05-28  3:25                                 ` David Gibson
2009-05-28  8:10                             ` Benjamin Herrenschmidt
2009-05-28  7:38                         ` Benjamin Herrenschmidt
2009-05-27 20:43                     ` Grant Likely
2009-05-28  7:37                     ` Benjamin Herrenschmidt
2009-05-28  9:15                       ` Russell King - ARM Linux
     [not found]                         ` <20090528091513.GA14789-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2009-05-28  9:57                           ` David Miller
     [not found]                             ` <20090528.025739.16559619.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-05-28 10:11                               ` Benjamin Herrenschmidt
2009-05-28 10:33                                 ` Robert Schwebel
2009-05-28 10:34                                 ` Russell King - ARM Linux
     [not found]                                   ` <20090528103421.GC14789-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2009-05-28 22:33                                     ` Benjamin Herrenschmidt
2009-05-28 10:14                               ` Russell King - ARM Linux
     [not found]                                 ` <20090528101440.GB14789-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2009-05-28 21:30                                   ` David Miller
2009-05-28 12:17                             ` Dmitry Eremin-Solenikov
2009-05-28 12:48                               ` David Gibson
     [not found]                                 ` <20090528124817.GB4565-787xzQ0H9iRg7VrjXcPTGA@public.gmane.org>
2009-05-28 12:55                                   ` David Gibson
2009-05-28 14:13                               ` Grant Likely
     [not found]                                 ` <fa686aa40905280713u2b3ef5fvbe3d58ccdb629b60-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-28 16:53                                   ` Russell King - ARM Linux
2009-05-28 17:05                                     ` Grant Likely
2009-05-28 18:46                                     ` Alexander Clouter
2009-05-28 22:21                                   ` Benjamin Herrenschmidt
2009-05-29  1:39                                     ` David Gibson
     [not found]                                       ` <20090529013908.GA7831-787xzQ0H9iRg7VrjXcPTGA@public.gmane.org>
2009-05-29  1:59                                         ` Mitch Bradley
     [not found]                                           ` <4A1F4189.8060702-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2009-05-29  3:52                                             ` Benjamin Herrenschmidt
2009-05-29  4:11                                               ` David Miller
2009-05-29  4:11                                             ` David Miller
     [not found]                                               ` <20090528.211123.46272556.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2009-05-29  4:56                                                 ` Benjamin Herrenschmidt
2009-05-29  5:11                                                   ` David Miller
2009-05-28 10:00                           ` Benjamin Herrenschmidt
2009-05-28 11:44                           ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-28 12:47                           ` Jon Smirl
     [not found]                             ` <9e4733910905280547w7ee65d40yb4b3ab9559e14dae-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-28 14:39                               ` Grant Likely
2009-05-28 14:54                           ` Grant Likely
2009-05-27 18:26                 ` Peter Korsgaard [this message]
2009-05-28  3:02           ` David Gibson
2009-05-28  7:32           ` Benjamin Herrenschmidt
2009-05-28 13:38             ` Grant Likely
2009-05-27 22:01       ` Mitch Bradley
     [not found]         ` <4A1DB855.2030608-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2009-05-28  8:17           ` Benjamin Herrenschmidt
2009-05-27 17:44   ` Russell King
     [not found]     ` <20090527174440.GA31861-f404yB8NqCZvn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2009-05-27 17:52       ` Grant Likely
     [not found]         ` <fa686aa40905271052k3f55eb73k2cb0c3cff3c94d7b-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-05-28  3:44           ` David Gibson

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