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From: Stephen Neuendorffer <stephen.neuendorffer@xilinx•com>
To: "Grant Likely" <grant.likely@secretlab•ca>
Cc: linuxppc-dev@ozlabs•org, "David H. Lynch Jr." <dhlii@dlasys•net>
Subject: RE: device trees.
Date: Tue, 12 May 2009 17:10:46 -0700	[thread overview]
Message-ID: <20090513001048.490B533005D@mail141-va3.bigfish.com> (raw)
In-Reply-To: <fa686aa40905112230ve176b30o25abcdf5c203f6c7@mail.gmail.com>


Another possibility is to pad the DTB with a DESYNC command and the correct=
 pad frame, just in case it cannot be prevented.

Steve

> -----Original Message-----
> From: Grant Likely [mailto:grant.likely@secretlab•ca]
> Sent: Monday, May 11, 2009 10:30 PM
> To: Stephen Neuendorffer
> Cc: David H. Lynch Jr.; linuxppc-dev@ozlabs•org
> Subject: Re: device trees.
> =

> On Mon, May 11, 2009 at 10:27 PM, Stephen Neuendorffer
> <stephen.neuendorffer@xilinx•com> wrote:
> >> > OK, so the key question seems to be *when* the bitstream is
> > associated
> >> > with the
> >> > device tree. =A0If at bitstream generation time, you can prepend the=

> > .dtb
> >> > to the bitstream. =A0As long as the dtb doesn't contain the magic
> >> > bitstream start code, you can go back and access it later.
> >> >
> >> You really mean prepend ? I was presuming that things would work
> > better
> >> if it was appended ?
> >
> > Yes, actually prepend is simpler because you don't have to know the siz=
e
> > of the bitstream.
> > Everything before the SYNC code in the bitstream is ignored.
> =

> ...In this case, might need to preprocess the .dtb the escape out the
> possibility of a sync code appearing.
> =

> g.
> =

> --
> Grant Likely, B.Sc., P.Eng.
> Secret Lab Technologies Ltd.


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  reply	other threads:[~2009-05-13  0:10 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-08 16:03 device trees David H. Lynch Jr.
2009-05-08 17:15 ` Timur Tabi
2009-05-08 18:43 ` Kumar Gala
2009-05-09 20:51 ` Grant Likely
2009-05-11  2:00   ` Michael Ellerman
2009-05-11  4:08     ` Grant Likely
2009-05-11  6:32       ` David H. Lynch Jr.
2009-05-11 13:51         ` Grant Likely
2009-05-11 15:52           ` Stephen Neuendorffer
2009-05-11 16:58             ` David H. Lynch Jr.
     [not found]               ` <20090511183638.F07C01438054@mail184-wa4.bigfish.com>
     [not found]                 ` <4A08C599.2030100@dlasys.net>
     [not found]                   ` <20090512005554.EEE1019D009B@mail129-dub.bigfish.com>
2009-05-12  2:34                     ` David H. Lynch Jr.
2009-05-12  4:27                       ` Stephen Neuendorffer
2009-05-12  5:30                         ` Grant Likely
2009-05-13  0:10                           ` Stephen Neuendorffer [this message]
2009-05-13  2:36                             ` David Gibson
2009-05-13  4:03                               ` Grant Likely
2009-05-13  6:11                               ` David H. Lynch Jr.
2009-05-13  6:21                                 ` David Gibson
2009-05-13 18:11                                   ` David H. Lynch Jr.
2009-05-14  3:08                                     ` David Gibson
2009-05-14 12:51                                       ` David H. Lynch Jr.
2009-05-13  6:58                                 ` Stephen Neuendorffer
2009-05-11 16:45           ` David H. Lynch Jr.
2009-05-11 17:47             ` Grant Likely
2009-05-11 21:38               ` David H. Lynch Jr.
2009-05-11 22:29                 ` Benjamin Herrenschmidt
2009-05-11 22:56                 ` David Gibson
2009-05-12  2:37                   ` Michael Ellerman
2009-05-11 23:09                 ` Grant Likely
2009-05-12  1:12                   ` David Gibson
2009-05-12  5:22                     ` Grant Likely
2009-05-12 23:24                       ` David Gibson
2009-05-13  0:01                         ` Grant Likely
2009-05-13  0:13                         ` David H. Lynch Jr.
2009-05-13  1:15                           ` Grant Likely
2009-05-13  2:32                           ` David Gibson
2009-05-11 23:19                 ` Stephen Neuendorffer
2009-05-12  0:04                   ` Grant Likely
2009-05-12  7:38                     ` Wolfram Sang
2009-05-11 14:58         ` Timur Tabi
2009-05-11 16:54           ` David H. Lynch Jr.
2009-05-11 23:27             ` David Gibson
2009-05-11 22:25       ` Benjamin Herrenschmidt

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