From: Segher Boessenkool <segher@kernel.crashing.org>
To: Laurent Pinchart <laurentp@cse-semaphore.com>
Cc: ben@simtec.co.uk, linuxppc-dev@ozlabs.org,
linux-mtd@lists.infradead.org,
David Gibson <david@gibson.dropbear.id.au>
Subject: Re: OF compatible MTD platform RAM driver ?
Date: Wed, 26 Mar 2008 16:06:45 +0100 [thread overview]
Message-ID: <b06db7bb4932d14f8af9547abdfc9d0d@kernel.crashing.org> (raw)
In-Reply-To: <200803251914.24021.laurentp@cse-semaphore.com>
> So we're left with two main options.
>
> - Reusing the nvram device type from the Device Support Extensions.
This wouldn't bring you anything. A device_type is only used internally
by OF, to decide what device nodes support which OF programming model.
If you only have a flat device tree, "device_type" should be used only
as a workaround for older kernels that require it.
> - Using another device node with a compatible value set to
> "linear-ram" (or
> something similar). This would support both volatile and non-volatile
> devices, and a property could be added to specify if the device is
> volatile
> or not.
"memory-mapped-memory" perhaps :-)
Or, just "memory". Although that one might play havoc with some
not-quite-correct main memory probing code.
Segher
next prev parent reply other threads:[~2008-03-26 15:09 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-10 15:06 OF compatible MTD platform RAM driver ? Laurent Pinchart
2008-03-10 17:00 ` Rune Torgersen
2008-03-11 0:45 ` David Gibson
2008-03-11 10:39 ` Laurent Pinchart
2008-03-11 22:40 ` David Gibson
2008-03-25 14:36 ` Laurent Pinchart
2008-03-25 15:29 ` Sergei Shtylyov
2008-03-25 15:51 ` Laurent Pinchart
2008-03-25 16:23 ` Sergei Shtylyov
2008-03-25 16:44 ` Laurent Pinchart
2008-03-25 17:02 ` Sergei Shtylyov
2008-03-25 17:23 ` Laurent Pinchart
2008-03-25 17:37 ` Sergei Shtylyov
2008-03-25 17:56 ` Rune Torgersen
2008-03-25 18:14 ` Laurent Pinchart
2008-03-26 12:53 ` Sergei Shtylyov
2008-03-27 9:13 ` Laurent Pinchart
2008-03-27 10:03 ` David Gibson
2008-03-27 12:23 ` Sergei Shtylyov
2008-03-28 0:07 ` David Gibson
2008-03-28 12:31 ` Sergei Shtylyov
2008-03-27 14:31 ` Laurent Pinchart
2008-03-28 0:09 ` David Gibson
2008-03-30 18:15 ` Segher Boessenkool
2008-03-30 21:16 ` Paul Mackerras
2008-03-30 22:39 ` Segher Boessenkool
2008-03-31 0:42 ` Paul Mackerras
2008-03-31 0:59 ` Segher Boessenkool
2008-03-31 1:24 ` Segher Boessenkool
2008-03-31 8:21 ` Laurent Pinchart
2008-03-31 12:21 ` Segher Boessenkool
2008-03-26 15:06 ` Segher Boessenkool [this message]
2008-03-26 15:40 ` Sergei Shtylyov
2008-03-27 9:24 ` Laurent Pinchart
2008-03-30 18:12 ` Segher Boessenkool
2008-03-26 15:09 ` Segher Boessenkool
2008-03-11 15:00 ` Rune Torgersen
2008-03-11 22:41 ` David Gibson
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