From: Yuri Tikhonov <yur@emcraft•com>
To: Josh Boyer <jwboyer@linux•vnet.ibm.com>
Cc: linuxppc-dev@ozlabs•org, Detlev Zundel <dzu@denx•de>,
Wolfgang Denk <wd@denx•de>, Ilya Yanok <yanok@emcraft•com>
Subject: Re[2]: [PATCH] katmai.dts: extend DMA ranges; add dma/sysace nodes
Date: Fri, 14 Nov 2008 08:21:15 +0300 [thread overview]
Message-ID: <314426140.20081114082115@emcraft.com> (raw)
In-Reply-To: <20081113064533.77eccc1b@zod.rchland.ibm.com>
=0D=0A Hello Josh,
On Thursday, November 13, 2008 you wrote:
[snip]
> You have no compatible property in these 3 nodes. How are drivers
> supposed to bind to them?
> You also have no reg or dcr-reg properties. What exactly are these
> nodes for?
Probably we (me and Ilya) overdone with posting katmai.dts-related=20
changes to ML, and duplicated the same patches in different posts.=20
Sorry for the confusion. These nodes are necessary for the ppc440spe=20
ADMA driver:
http://www.nabble.com/-PATCH-11-11--ppc440spe-adma:-ADMA-driver-for-PPC440S=
P(e)-td20488049.html
>> + sysacecf@4fe000000 {
>> + compatible =3D "xlnx,opb-sysace-1.00.b";
> Odd. This isn't a xilinx board by any means. This should probably
> look something like:
> compatible =3D "amcc,sysace-440spe", "xlnx,opb-sysace-1.00.b";
> Though I'm curious about it in general. The xilinx bindings have the
> versioning numbers on them to match particular bit-streams in the FPGAs
> if I remember correctly. Does that really apply here?
No, we just selected the description which looked more appropriate=20
for our case: SysAce is connected to the External Bus Controller of=20
440SPe, which in turns is attached as a slave to OPB (on-chip=20
peripheral).
Regards, Yuri
--
Yuri Tikhonov, Senior Software Engineer
Emcraft Systems, www.emcraft.com
prev parent reply other threads:[~2008-11-14 5:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-13 8:49 [PATCH] katmai.dts: extend DMA ranges; add dma/sysace nodes Yuri Tikhonov
2008-11-13 9:25 ` Benjamin Herrenschmidt
2008-11-14 4:45 ` Re[2]: " Yuri Tikhonov
2008-11-14 5:41 ` Benjamin Herrenschmidt
[not found] ` <1767195957.20081127032002@emcraft.com>
2008-11-27 0:26 ` Re[4]: " Yuri Tikhonov
2008-11-27 0:42 ` Benjamin Herrenschmidt
2008-11-27 0:59 ` Re[6]: " Yuri Tikhonov
2008-11-27 4:07 ` Benjamin Herrenschmidt
2008-11-13 11:45 ` Josh Boyer
2008-11-14 5:00 ` Grant Likely
2008-11-14 5:27 ` Re[2]: " Yuri Tikhonov
2008-11-14 5:30 ` Grant Likely
2008-11-14 5:21 ` Yuri Tikhonov [this message]
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