From: Tony Lindgren <tony@atomide.com>
To: Shawn Guo <shawn.guo@freescale.com>
Cc: John Bonesio <bones@secretlab.ca>,
devicetree-discuss@lists.ozlabs.org, glikely@secretlab.ca,
linux-arm-kernel@lists.infradead.org, nico@fluxnic.net
Subject: Re: [PATCHv3] ARM:boot:device tree: Allow the device tree binary to be appended to zImage
Date: Wed, 13 Apr 2011 17:00:30 +0300 [thread overview]
Message-ID: <20110413140030.GE12665@atomide.com> (raw)
In-Reply-To: <20110328091259.GA18721@S2100-06.ap.freescale.net>
* Shawn Guo <shawn.guo@freescale.com> [110328 12:10]:
> On Thu, Mar 24, 2011 at 04:18:41PM -0700, John Bonesio wrote:
> > This patch provides the ability to boot using a device tree that is appended
> > to the raw binary zImage (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
> >
> > Signed-off-by: John Bonesio <bones@secretlab.ca>
> > ---
> >
> Tested on mx51 babbage. The non-dt kernel works fine, but dt kernel
> does not.
>
> I tracked it down a little bit and found, before calling kernel from
> arch/arm/boot/compressed/head.S, the dtb magic number (at address
> pointed by r8) was interpolated to 0x73fbc000 which happens to be the
> value of 'uart_base' assigned in plat-mxc/include/mach/uncompress.h.
Gave this a try on an omap3 based board, looks like decompress_kernel
will trash the first 16 bytes of the device tree data somehow.
John, can you please check if your current patch works properly?
Regards,
Tony
next prev parent reply other threads:[~2011-04-13 14:00 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-24 23:18 [PATCHv3] ARM:boot:device tree: Allow the device tree binary to be appended to zImage John Bonesio
2011-03-24 23:37 ` Nicolas Pitre
2011-03-28 9:13 ` Shawn Guo
2011-04-13 14:00 ` Tony Lindgren [this message]
[not found] ` <20110413140030.GE12665-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-04-20 5:47 ` Shawn Guo
[not found] ` <20110420054746.GA31127-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-04-20 7:34 ` Shawn Guo
[not found] ` <20110420073445.GB31127-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-04-21 8:02 ` Tony Lindgren
[not found] ` <20110421080238.GE13688-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-04-21 12:46 ` Tony Lindgren
2011-04-27 14:23 ` Tony Lindgren
[not found] ` <20110427142306.GI3755-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-04-27 14:38 ` Tony Lindgren
2011-04-27 14:40 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1104271036520.24613-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2011-04-27 14:43 ` Tony Lindgren
[not found] ` <20110427144335.GK3755-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-04-29 10:26 ` Tony Lindgren
[not found] ` <20110429102623.GX3755-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-04-29 13:02 ` Grant Likely
[not found] ` <BANLkTi=jcb8Piki6RrijGOQG=wJ=ULv5Gw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-04-29 13:08 ` Grant Likely
2011-04-29 13:09 ` Tony Lindgren
[not found] ` <20110429130939.GB3755-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-04-29 13:21 ` Nicolas Pitre
2011-04-29 13:16 ` Nicolas Pitre
2011-04-29 13:53 ` Russell King - ARM Linux
[not found] ` <20110429135334.GR5126-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2011-04-29 19:14 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1104291509540.24613-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2011-05-04 7:23 ` Tony Lindgren
[not found] ` <20110504072317.GU2092-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-05-04 13:12 ` Tony Lindgren
2011-05-04 13:38 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1105040936040.24613-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2011-05-09 11:19 ` [PATCH] ARM: Make sure appended device tree data won't overlap kernel BSS Tony Lindgren
[not found] ` <20110509111929.GA11410-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-05-09 14:49 ` Tony Lindgren
[not found] ` <20110509144949.GE30958-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-05-12 12:59 ` Tony Lindgren
[not found] ` <20110512125952.GN31483-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-05-13 7:39 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1105130930330.2762-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2011-05-13 11:21 ` Tony Lindgren
[not found] ` <20110513112120.GO31483-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-05-13 13:09 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1105131507150.5787-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2011-05-13 13:28 ` Tony Lindgren
[not found] ` <20110513132802.GU31483-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-06-07 12:43 ` Tony Lindgren
[not found] ` <20110607124311.GE8696-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-06-07 13:14 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1106070914050.2142-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2011-06-07 13:22 ` Tony Lindgren
2011-06-12 6:14 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1106120209450.2142-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2011-06-13 10:49 ` Tony Lindgren
2011-05-09 11:23 ` [PATCHv3] ARM:boot:device tree: Allow the device tree binary to be appended to zImage Tony Lindgren
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