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From: Laurent Pinchart <laurentp@cse-semaphore.com>
To: linuxppc-dev@ozlabs.org
Subject: How to pass information from the bootloader to the kernel ?
Date: Thu, 10 Apr 2008 17:50:58 +0200
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Hi everybody,

I need to pass a limited amount of information from the boot loader to the=
=20
Linux kernel, such as the boot mode chosen by the user or the last boot=20
reason (power up, reset, watchdog, ...).

What is the best way to pass that kind of information from the boot loader =
to=20
the kernel ? Should I use the device tree ?

I thought about populating the chosen node with the data I need. This could=
=20
make sense for the boot mode, but I feel like I would abuse the chosen node=
=20
if I used it to pass other "non user chosen" information.

Best regards,

=2D-=20
Laurent Pinchart
CSE Semaphore Belgium

Chaussee de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
=46 +32 (2) 387 42 75

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