From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Grant Likely <grant.likely@secretlab.ca>
Cc: nicolas.pitre@canonical.com,
Jeremy Kerr <jeremy.kerr@canonical.com>,
devicetree-discuss@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org,
Nicolas Pitre <nico@fluxnic.net>
Subject: Re: Boot interface for device trees on ARM
Date: Wed, 19 May 2010 13:08:43 +0100 [thread overview]
Message-ID: <20100519120843.GB24520@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <AANLkTilJl9_NHiT1LITG7UbA9S7OYsnGMcDAsFEEx5Ob@mail.gmail.com>
On Wed, May 19, 2010 at 05:57:55AM -0600, Grant Likely wrote:
> side question: Do recent ARM SoCs provide any facility to reliably
> detected the silicon at run time? ie. like the processor (unique to
> core) and system (unique to SoC) id registers on PowerPC.
No.
Every SoC is effectively unique in all aspects. There is no common
physical memory layout, no common interrupt controller, no common
timer, etc. The base addresses for everything is also SoC specific,
so it's a catch-22 situation - you need to know what the SoC is to
be able to find out where various registers and memory is located.
next prev parent reply other threads:[~2010-05-19 12:08 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-18 2:54 Boot interface for device trees on ARM Jeremy Kerr
2010-05-18 4:34 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1005172341200.12758-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2010-05-18 5:24 ` Jeremy Kerr
[not found] ` <201005181324.45701.jeremy.kerr-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2010-05-18 8:49 ` David Gibson
2010-05-18 12:24 ` Nicolas Pitre
2010-05-18 14:06 ` Jason McMullan
[not found] ` <AANLkTikg4rQdnbFxBOUkGc_0DrKqRkp9raZ8Ck5xkLG4-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-05-19 0:21 ` David Gibson
[not found] ` <alpine.LFD.2.00.1005180802010.12758-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2010-05-19 0:28 ` David Gibson
2010-05-19 1:28 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1005182109180.12758-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2010-05-19 6:50 ` David Gibson
2010-05-19 14:45 ` Grant Likely
2010-05-19 1:41 ` Jamie Lokier
[not found] ` <20100519014118.GD2318-yetKDKU6eevNLxjTenLetw@public.gmane.org>
2010-05-19 7:12 ` David Gibson
2010-05-19 14:21 ` Grant Likely
2010-05-19 8:50 ` Jeremy Kerr
2010-05-19 7:25 ` Mitch Bradley
2010-05-18 11:57 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1005180742500.12758-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2010-05-19 12:13 ` Grant Likely
[not found] ` <AANLkTinsOSI_TIc7Jyy4QFuFaS2d-fi0y3LMuITLyG3N-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-05-19 16:45 ` Jamie Lokier
[not found] ` <20100519164534.GE1693-yetKDKU6eevNLxjTenLetw@public.gmane.org>
2010-05-19 17:10 ` Grant Likely
2010-05-19 17:32 ` M. Warner Losh
2010-05-19 11:57 ` Grant Likely
2010-05-19 12:08 ` Russell King - ARM Linux [this message]
[not found] ` <AANLkTilJl9_NHiT1LITG7UbA9S7OYsnGMcDAsFEEx5Ob-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-05-19 17:52 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1005191055180.12758-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2010-05-19 20:08 ` Jamie Lokier
[not found] ` <20100519200819.GF1693-yetKDKU6eevNLxjTenLetw@public.gmane.org>
2010-05-19 20:22 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1005191614580.12758-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2010-05-21 16:24 ` John Rigby
2010-05-21 16:27 ` Jamie Bennett
[not found] ` <AANLkTil3vDAN4QIJJImk8MnQklisqFJq_RBc7c9VEZxl-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-05-21 19:59 ` Russell King - ARM Linux
2010-06-03 21:12 ` Grant Likely
2010-06-04 20:01 ` Grant Likely
[not found] ` <AANLkTilhqg270l-_m9raalqAPPRhvLJD9omHe8ysgLjg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-06-04 20:33 ` John Rigby
2010-06-04 20:37 ` Jon Loeliger
[not found] ` <E1OKdeH-00053a-U2-CYoMK+44s/E@public.gmane.org>
2010-06-04 21:07 ` Grant Likely
2010-06-05 1:33 ` Jeremy Kerr
[not found] ` <201006050933.06714.jeremy.kerr-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2010-06-05 2:29 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1006042212400.30664-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2010-06-05 5:59 ` Grant Likely
2010-06-09 4:26 ` Jeremy Kerr
[not found] ` <201006091226.15438.jeremy.kerr-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2010-06-09 13:09 ` Nicolas Pitre
[not found] ` <201005181054.32325.jeremy.kerr-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2010-05-19 11:45 ` Grant Likely
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