From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: Get machine type in user space
Date: Thu, 20 Jun 2013 21:30:55 +0200 [thread overview]
Message-ID: <201306202130.55247.arnd@arndb.de> (raw)
In-Reply-To: <CABp-a4cUbwXEGPUQBjGRnNR+X91j1qGQigS=KYTZ1fZ2ZGzQtA@mail.gmail.com>
On Thursday 20 June 2013, Per Strandh wrote:
> I work for a company that develops our own arm-based embedded linux
> products. (both hardware and software)
>
> My question is about the "machine type" parameter that is passed from
> the bootloader to the kernel.
>
> If the kernel supports more than one "machine type", the the one that
> are specified by the bootloader will be choosen.
> If the kernel only supports one "machine type" that will always be choosen.
>
> Question:
> Is it possible from user-space to find out the "machine type" that was
> passed from the bootloader?
> I know that in /proc/cpuinfo it is possible to see that "name" of the
> choosen "machine type", but not if it was the correct one.
You can look in the "compatible" property of the root node in /proc/device-tree
That will have the exact string used to match the platform.
Arnd
next prev parent reply other threads:[~2013-06-20 19:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-20 18:22 Get machine type in user space Per Strandh
2013-06-20 19:30 ` Arnd Bergmann [this message]
2013-06-20 19:45 ` Nishanth Menon
2013-06-20 20:14 ` Arnd Bergmann
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