From: Sergei Shtylyov <sshtylyov@ru•mvista.com>
To: Segher Boessenkool <segher@kernel•crashing.org>
Cc: linuxppc-dev@ozlabs•org, David Gibson <david@gibson•dropbear.id.au>
Subject: Re: powerpc_flash_init(), wtf!?
Date: Thu, 03 May 2007 21:53:22 +0400 [thread overview]
Message-ID: <463A2192.6020308@ru.mvista.com> (raw)
In-Reply-To: <463A1941.3090608@ru.mvista.com>
Hello, I wrote:
>>Now for ROM/flash/NVRAM, nodes _can_ appear directly
>>under the root, but only if that is where they belong
>>on your platform (i.e., they sit directly on the "system
>>bus" (whatever that means on your platform); on most
>>platforms though, such devices are connected via some
>>I/O busses, so the nodes should appear under their
>>respective controllers.
> Yeah, you're right here, and I've probably misunderstood what "memory"
> node was. In fact, the flash in my system resides on the same local bus as
> RAM, so the proper place would be behind the "lbc" (or whatever -- it doesn't
> exist as yet) node on the "soc" bus. Do you think I need to go and document
> it as well for such cause? :-]
No, that probably won't do. MPC85xx SoC bus has ranges = <e0000000
00100000> and the NOR flash is mapped at 0xff000000, so it seems that it can't
be located under the "soc" bus (unless that latter has "ranges" prop extended?).
>>Segher
WBR, Sergei
next prev parent reply other threads:[~2007-05-03 17:51 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-01 5:18 powerpc_flash_init(), wtf!? David Gibson
2007-05-03 6:35 ` Vitaly Bordug
2007-05-03 7:03 ` David Gibson
2007-05-03 12:02 ` Sergei Shtylyov
2007-05-03 12:22 ` David Gibson
2007-05-03 13:28 ` Sergei Shtylyov
2007-05-03 16:21 ` Segher Boessenkool
2007-05-03 16:59 ` Sergei Shtylyov
2007-05-03 17:25 ` Segher Boessenkool
2007-05-03 21:37 ` Benjamin Herrenschmidt
2007-05-03 23:49 ` David Gibson
2007-05-03 12:29 ` Benjamin Herrenschmidt
2007-05-04 0:30 ` Vitaly Bordug
2007-05-04 1:28 ` David Gibson
2007-05-03 11:47 ` Sergei Shtylyov
2007-05-03 12:30 ` David Gibson
2007-05-03 13:04 ` Sergei Shtylyov
2007-05-03 16:20 ` Segher Boessenkool
2007-05-03 17:17 ` Sergei Shtylyov
2007-05-03 17:35 ` Segher Boessenkool
2007-05-03 18:19 ` Sergei Shtylyov
2007-05-03 21:44 ` Benjamin Herrenschmidt
2007-05-03 17:53 ` Sergei Shtylyov [this message]
2007-05-03 18:07 ` Segher Boessenkool
2007-05-03 23:56 ` David Gibson
2007-05-04 12:14 ` Segher Boessenkool
2007-05-05 17:36 ` Sergei Shtylyov
2007-05-05 20:19 ` Segher Boessenkool
-- strict thread matches above, loose matches on Subject: below --
2007-05-23 21:57 Mark A. Greer
2007-05-24 0:56 ` David Gibson
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