From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Russell King <rmk+lkml@arm.linux.org.uk>
Cc: Scott Wood <scottwood@freescale.com>,
devicetree-discuss <devicetree-discuss@ozlabs.org>,
linux-kernel@vger.kernel.org, Timur Tabi <timur@freescale.com>,
Janboe Ye <yuan-bo.ye@motorola.com>,
linux-arm-kernel@lists.arm.linux.org.uk
Subject: Re: [RFC] [PATCH] Device Tree on ARM platform
Date: Thu, 28 May 2009 17:37:16 +1000 [thread overview]
Message-ID: <1243496236.3171.140.camel@pasglop> (raw)
In-Reply-To: <20090527175609.GB31861@flint.arm.linux.org.uk>
On Wed, 2009-05-27 at 18:56 +0100, Russell King wrote:
>
> smc91x is a prime example of the kind of information drivers need - base
> address and irq are very much insufficient to describe how this device is
> connected. There's much more information required to specify this device
> fully, and throwing it into the driver doesn't work. We've been there
> and proven that point.
The device-tree is a very nice and convenient way to convey all the
informations the driver need straight to the driver without any platform
code in the middle :-)
Cheers,
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
To: Russell King <rmk+lkml-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
Cc: devicetree-discuss
<devicetree-discuss-mnsaURCQ41sdnm+yROfE0A@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Timur Tabi <timur-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
Scott Wood <scottwood-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
Janboe Ye <yuan-bo.ye-3WKxDLwmzFNWk0Htik3J/w@public.gmane.org>,
linux-arm-kernel-xIg/pKzrS19vn6HldHNs0ANdhmdF6hFW@public.gmane.org
Subject: Re: [RFC] [PATCH] Device Tree on ARM platform
Date: Thu, 28 May 2009 17:37:16 +1000 [thread overview]
Message-ID: <1243496236.3171.140.camel@pasglop> (raw)
In-Reply-To: <20090527175609.GB31861-f404yB8NqCZvn6HldHNs0ANdhmdF6hFW@public.gmane.org>
On Wed, 2009-05-27 at 18:56 +0100, Russell King wrote:
>
> smc91x is a prime example of the kind of information drivers need - base
> address and irq are very much insufficient to describe how this device is
> connected. There's much more information required to specify this device
> fully, and throwing it into the driver doesn't work. We've been there
> and proven that point.
The device-tree is a very nice and convenient way to convey all the
informations the driver need straight to the driver without any platform
code in the middle :-)
Cheers,
Ben.
next prev parent reply other threads:[~2009-05-28 7:39 UTC|newest]
Thread overview: 277+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-27 7:08 [RFC] [PATCH] Device Tree on ARM platform Janboe Ye
2009-05-27 14:27 ` Grant Likely
2009-05-27 14:27 ` Grant Likely
2009-05-27 14:39 ` Timur Tabi
2009-05-27 15:05 ` Robert Schwebel
2009-05-27 15:05 ` Robert Schwebel
2009-05-27 15:39 ` Grant Likely
2009-05-27 15:39 ` Grant Likely
2009-05-27 16:20 ` Robert Schwebel
2009-05-27 16:20 ` Robert Schwebel
2009-05-27 20:35 ` Grant Likely
2009-05-27 20:35 ` Grant Likely
2009-05-27 23:48 ` Robert Schwebel
2009-05-27 23:48 ` Robert Schwebel
2009-05-27 23:52 ` David Miller
2009-05-27 23:52 ` David Miller
2009-05-27 23:58 ` Scott Wood
2009-05-27 23:58 ` Scott Wood
2009-05-28 0:02 ` David Miller
2009-05-28 0:02 ` David Miller
2009-05-28 0:07 ` Robert Schwebel
2009-05-28 0:07 ` Robert Schwebel
2009-05-28 0:15 ` David Miller
2009-05-28 0:15 ` David Miller
2009-05-28 10:37 ` Mark Brown
2009-05-28 10:37 ` Mark Brown
2009-05-28 22:32 ` Grant Likely
2009-05-28 22:32 ` Grant Likely
2009-05-29 12:34 ` Mark Brown
2009-05-30 9:52 ` Benjamin Herrenschmidt
2009-05-30 9:52 ` Benjamin Herrenschmidt
2009-05-30 10:21 ` Russell King - ARM Linux
2009-05-30 10:21 ` Russell King - ARM Linux
2009-05-30 17:56 ` Mark Brown
2009-05-30 17:56 ` Mark Brown
2009-06-02 7:57 ` Holger Schurig
2009-06-02 9:48 ` Mark Brown
2009-06-02 9:48 ` Mark Brown
2009-05-28 2:57 ` David Gibson
2009-05-28 2:57 ` David Gibson
2009-05-28 3:36 ` Grant Likely
2009-05-28 3:36 ` Grant Likely
2009-05-28 3:29 ` Grant Likely
2009-05-28 3:29 ` Grant Likely
2009-05-28 9:51 ` Wolfgang Denk
2009-05-28 9:59 ` David Miller
2009-05-28 9:59 ` David Miller
2009-05-28 10:13 ` Robert Schwebel
2009-05-28 10:13 ` Robert Schwebel
2009-05-28 13:33 ` Jon Smirl
2009-05-28 13:33 ` Jon Smirl
2009-05-28 13:42 ` Robert Schwebel
2009-05-28 13:42 ` Robert Schwebel
2009-05-28 9:38 ` Wolfgang Denk
2009-05-28 3:21 ` Grant Likely
2009-05-28 3:21 ` Grant Likely
2009-05-28 3:16 ` Grant Likely
2009-05-28 3:16 ` Grant Likely
2009-05-28 0:55 ` Stephen Neuendorffer
2009-05-28 0:55 ` Stephen Neuendorffer
2009-05-27 18:56 ` Alexander Clouter
2009-05-27 20:46 ` Grant Likely
2009-05-27 20:46 ` Grant Likely
2009-05-27 21:32 ` Alexander Clouter
2009-05-27 21:32 ` Alexander Clouter
2009-05-28 14:29 ` Dmitry Eremin-Solenikov
2009-05-27 15:41 ` Peter Korsgaard
2009-05-27 15:41 ` Peter Korsgaard
2009-05-27 16:23 ` Scott Wood
2009-05-27 16:23 ` Scott Wood
2009-05-27 17:56 ` Russell King
2009-05-27 17:56 ` Russell King
2009-05-27 19:08 ` Scott Wood
2009-05-27 19:08 ` Scott Wood
2009-05-27 19:13 ` Jon Smirl
2009-05-27 19:13 ` Jon Smirl
2009-05-27 19:21 ` Russell King - ARM Linux
2009-05-27 19:21 ` Russell King - ARM Linux
2009-05-27 19:39 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-27 19:39 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-27 20:22 ` Grant Likely
2009-05-27 20:22 ` Grant Likely
2009-05-27 20:19 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-27 20:19 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-27 20:54 ` Grant Likely
2009-05-27 20:54 ` Grant Likely
2009-05-28 3:04 ` David Gibson
2009-05-28 3:04 ` David Gibson
2009-05-28 7:58 ` Benjamin Herrenschmidt
2009-05-28 7:58 ` Benjamin Herrenschmidt
2009-05-27 23:57 ` Robert Schwebel
2009-05-27 23:57 ` Robert Schwebel
2009-05-28 0:00 ` David Miller
2009-05-28 0:00 ` David Miller
2009-05-28 3:21 ` Grant Likely
2009-05-28 3:21 ` Grant Likely
2009-05-28 6:34 ` Wolfram Sang
2009-05-28 6:34 ` Wolfram Sang
2009-05-28 7:55 ` Benjamin Herrenschmidt
2009-05-28 7:55 ` Benjamin Herrenschmidt
2009-05-28 13:34 ` Grant Likely
2009-05-28 13:34 ` Grant Likely
2009-05-28 7:48 ` Benjamin Herrenschmidt
2009-05-28 7:48 ` Benjamin Herrenschmidt
2009-05-28 14:22 ` Ben Dooks
2009-05-27 20:28 ` David Miller
2009-05-27 20:28 ` David Miller
2009-05-27 20:31 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-27 20:31 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-28 2:52 ` David Gibson
2009-05-28 2:52 ` David Gibson
2009-05-28 4:27 ` David Miller
2009-05-28 4:27 ` David Miller
2009-05-28 4:47 ` David Gibson
2009-05-28 4:47 ` David Gibson
2009-05-28 5:31 ` David Miller
2009-05-28 5:31 ` David Miller
2009-05-28 5:47 ` David Gibson
2009-05-28 5:47 ` David Gibson
2009-05-28 7:47 ` Benjamin Herrenschmidt
2009-05-28 7:47 ` Benjamin Herrenschmidt
2009-05-28 14:17 ` Ben Dooks
2009-05-28 14:24 ` Robert Schwebel
2009-05-28 14:47 ` Grant Likely
2009-05-28 14:47 ` Grant Likely
2009-05-27 19:29 ` Russell King
2009-05-27 19:29 ` Russell King
2009-05-27 19:47 ` Sergei Shtylyov
2009-05-27 19:53 ` Scott Wood
2009-05-27 19:53 ` Scott Wood
2009-05-27 19:54 ` Timur Tabi
2009-05-27 19:54 ` Timur Tabi
2009-05-27 20:25 ` David Miller
2009-05-27 20:25 ` David Miller
2009-05-27 20:27 ` Timur Tabi
2009-05-27 20:27 ` Timur Tabi
2009-05-27 20:55 ` David Miller
2009-05-27 20:55 ` David Miller
2009-05-27 23:26 ` Robert Schwebel
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 20:14 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-27 20:23 ` David Miller
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
2009-05-27 20:27 ` Jean-Christophe PLAGNIOL-VILLARD
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 20:48 ` Josh Boyer
2009-05-27 20:48 ` Josh Boyer
2009-05-27 20:56 ` David Miller
2009-05-27 20:56 ` David Miller
2009-05-27 20:56 ` David Miller
2009-05-27 20:52 ` Mark Brown
2009-05-27 20:52 ` Mark Brown
2009-05-27 21:05 ` Grant Likely
2009-05-27 21:05 ` Grant Likely
2009-05-28 0:11 ` Jon Smirl
2009-05-28 0:11 ` Jon Smirl
2009-05-28 12:43 ` Sascha Hauer
2009-05-28 12:43 ` Sascha Hauer
2009-05-28 13:18 ` Thomas Gleixner
2009-05-28 15:04 ` Sascha Hauer
2009-05-28 15:04 ` Sascha Hauer
2009-05-28 15:27 ` Thomas Gleixner
2009-05-28 15:27 ` Thomas Gleixner
2009-05-29 0:51 ` Benjamin Herrenschmidt
2009-05-29 0:51 ` Benjamin Herrenschmidt
2009-05-29 7:52 ` Sascha Hauer
2009-05-29 7:52 ` Sascha Hauer
2009-05-29 9:08 ` Benjamin Herrenschmidt
2009-05-29 9:08 ` Benjamin Herrenschmidt
2009-05-31 10:52 ` Russell King - ARM Linux
2009-05-31 10:52 ` Russell King - ARM Linux
2009-05-28 14:31 ` Grant Likely
2009-05-28 14:31 ` Grant Likely
2009-05-28 3:25 ` David Gibson
2009-05-28 3:25 ` David Gibson
2009-05-28 8:10 ` Benjamin Herrenschmidt
2009-05-28 8:10 ` Benjamin Herrenschmidt
2009-05-28 7:38 ` Benjamin Herrenschmidt
2009-05-28 7:38 ` Benjamin Herrenschmidt
2009-05-27 20:43 ` Grant Likely
2009-05-27 20:43 ` Grant Likely
2009-05-28 7:37 ` Benjamin Herrenschmidt [this message]
2009-05-28 7:37 ` Benjamin Herrenschmidt
2009-05-28 9:15 ` Russell King - ARM Linux
2009-05-28 9:15 ` Russell King - ARM Linux
2009-05-28 9:57 ` David Miller
2009-05-28 9:57 ` David Miller
2009-05-28 10:11 ` Benjamin Herrenschmidt
2009-05-28 10:11 ` Benjamin Herrenschmidt
2009-05-28 10:33 ` Robert Schwebel
2009-05-28 10:34 ` Russell King - ARM Linux
2009-05-28 10:34 ` Russell King - ARM Linux
2009-05-28 22:33 ` Benjamin Herrenschmidt
2009-05-28 22:33 ` Benjamin Herrenschmidt
2009-05-28 10:14 ` Russell King - ARM Linux
2009-05-28 10:14 ` Russell King - ARM Linux
2009-05-28 21:30 ` David Miller
2009-05-28 21:30 ` David Miller
2009-05-28 12:17 ` Dmitry Eremin-Solenikov
2009-05-28 12:48 ` David Gibson
2009-05-28 12:48 ` David Gibson
2009-05-28 12:55 ` David Gibson
2009-05-28 12:55 ` David Gibson
2009-05-28 14:13 ` Grant Likely
2009-05-28 14:13 ` Grant Likely
2009-05-28 16:53 ` Russell King - ARM Linux
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 18:46 ` Alexander Clouter
2009-05-28 22:21 ` Benjamin Herrenschmidt
2009-05-28 22:21 ` Benjamin Herrenschmidt
2009-05-29 1:39 ` David Gibson
2009-05-29 1:39 ` David Gibson
2009-05-29 1:59 ` Mitch Bradley
2009-05-29 1:59 ` Mitch Bradley
2009-05-29 3:52 ` Benjamin Herrenschmidt
2009-05-29 3:52 ` Benjamin Herrenschmidt
2009-05-29 4:11 ` David Miller
2009-05-29 4:11 ` David Miller
2009-05-29 4:11 ` David Miller
2009-05-29 4:11 ` David Miller
2009-05-29 4:56 ` Benjamin Herrenschmidt
2009-05-29 4:56 ` Benjamin Herrenschmidt
2009-05-29 5:11 ` David Miller
2009-05-29 5:11 ` David Miller
2009-05-28 10:00 ` Benjamin Herrenschmidt
2009-05-28 10:00 ` Benjamin Herrenschmidt
2009-05-28 11:44 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-28 11:44 ` Jean-Christophe PLAGNIOL-VILLARD
2009-05-28 12:47 ` Jon Smirl
2009-05-28 12:47 ` Jon Smirl
2009-05-28 14:39 ` Grant Likely
2009-05-28 14:39 ` Grant Likely
2009-05-28 14:54 ` Grant Likely
2009-05-28 14:54 ` Grant Likely
2009-05-27 18:26 ` Peter Korsgaard
2009-05-27 16:32 ` Mark Brown
2009-05-27 18:50 ` Jon Smirl
2009-05-27 22:24 ` Mark Brown
2009-05-27 22:24 ` Mark Brown
2009-05-28 0:04 ` Jon Smirl
2009-05-28 0:04 ` Jon Smirl
2009-05-28 13:07 ` Mark Brown
2009-05-27 20:42 ` Grant Likely
2009-05-27 20:42 ` Grant Likely
2009-05-27 21:38 ` Mark Brown
2009-05-27 21:38 ` Mark Brown
2009-05-28 3:02 ` David Gibson
2009-05-28 3:02 ` David Gibson
2009-05-28 7:32 ` Benjamin Herrenschmidt
2009-05-28 7:32 ` Benjamin Herrenschmidt
2009-05-28 13:38 ` Grant Likely
2009-05-28 13:38 ` Grant Likely
2009-05-27 22:01 ` Mitch Bradley
2009-05-27 22:01 ` Mitch Bradley
2009-05-28 8:17 ` Benjamin Herrenschmidt
2009-05-28 8:17 ` Benjamin Herrenschmidt
2009-05-28 12:43 ` Holger Schurig
2009-05-28 13:12 ` Mark Brown
2009-05-27 17:44 ` Russell King
2009-05-27 17:44 ` Russell King
2009-05-27 17:52 ` Grant Likely
2009-05-27 17:52 ` Grant Likely
2009-05-28 3:44 ` David Gibson
2009-05-28 3:44 ` David Gibson
2009-05-30 11:22 ` Pavel Machek
2009-05-31 1:29 ` Kyle Moffett
2009-05-31 5:56 ` David Miller
2009-06-01 8:37 ` Dmitry Eremin-Solenikov
2009-05-31 10:08 ` Russell King - ARM Linux
2009-06-01 9:24 ` Stephen Rothwell
2009-06-01 10:36 ` Janboe Ye
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