From: nm@ti.com (Nishanth Menon)
To: linux-arm-kernel@lists.infradead.org
Subject: Get machine type in user space
Date: Thu, 20 Jun 2013 14:45:12 -0500 [thread overview]
Message-ID: <20130620194512.GA7269@kahuna> (raw)
In-Reply-To: <201306202130.55247.arnd@arndb.de>
On 21:30-20130620, Arnd Bergmann wrote:
> 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.
>
Documentation/ABI/testing/sysfs-devices-soc exposes
/sys/devices/socX/machine if enabled might help as well?
--
Regards,
Nishanth Menon
next prev parent reply other threads:[~2013-06-20 19:45 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
2013-06-20 19:45 ` Nishanth Menon [this message]
2013-06-20 20:14 ` Arnd Bergmann
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