From: Jeremy Kerr <jeremy.kerr-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
To: David Gibson <david-xT8FGy+AXnRB3Ne2BGzF6laj5H9X9Tb+@public.gmane.org>
Cc: Russell King - ARM Linux
<linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
devicetree-discuss
<devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>,
Philippe Robin <Philippe.Robin-5wv7dgnIgG8@public.gmane.org>,
David Rusling <David.Rusling-5wv7dgnIgG8@public.gmane.org>,
Dave P Martin <Dave.Martin-5wv7dgnIgG8@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: RFC: ARM Boot standard for passing device tree blob
Date: Fri, 26 Mar 2010 08:23:44 +0800 [thread overview]
Message-ID: <201003260823.44829.jeremy.kerr@canonical.com> (raw)
In-Reply-To: <20100325234053.GB26649@yookeroo>
> > > ===Required System State===
> > > *Quiesce all DMA
> > > *CPU register contents
> > > **r0 = 0
> > > **r1 = Linux machine number (as defined in the ARM Linux machine
> > > database) or 0
> >
> > 0 is a valid machine number. What is your purpose of passing 0?
>
> Presumably a machine number will need to be allocated to mean "use the
> device tree instead of fixed machine number info".
I've been using 0xffffffff to indicate that this is a 'device-tree' platform.
The value isn't really important, just that we agree on something.
Cheers,
Jeremy
next prev parent reply other threads:[~2010-03-26 0:23 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-24 15:11 RFC: ARM Boot standard for passing device tree blob Grant Likely
2010-03-25 21:04 ` Russell King - ARM Linux
[not found] ` <20100325210409.GH24984-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2010-03-25 23:40 ` David Gibson
2010-03-26 0:23 ` Jeremy Kerr [this message]
2010-03-26 3:24 ` Grant Likely
2010-03-26 13:37 ` Catalin Marinas
[not found] ` <1269610665.807.51.camel-uqmqopRKlSLZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org>
2010-03-26 17:43 ` Mitch Bradley
[not found] ` <4BACF238.3040405-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org>
2010-03-26 18:13 ` Grant Likely
2010-03-26 19:30 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.00.1003261435460.694-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2010-03-26 19:52 ` Grant Likely
[not found] ` <fa686aa41003261252u7dc31bb6nca2e77ae8feb4355-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-03-26 23:03 ` Russell King - ARM Linux
2010-03-29 11:24 ` Dave P. Martin
2010-03-30 0:26 ` Jamie Lokier
[not found] ` <20100330002638.GI9876-yetKDKU6eevNLxjTenLetw@public.gmane.org>
2010-03-30 13:32 ` Dave P. Martin
2010-03-26 23:00 ` Russell King - ARM Linux
2010-03-31 1:10 ` Ben Dooks
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