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[RFC PATCH 0/2] The Device Tree Patch for MIPS

To: <linux-mips@linux-mips.org>
Subject: [RFC PATCH 0/2] The Device Tree Patch for MIPS
From: "Dezhong Diao (dediao)" <dediao@cisco.com>
Date: Mon, 10 May 2010 16:32:34 -0500
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Cc: "David VomLehn (dvomlehn)" <dvomlehn@cisco.com>, "Tony Colclough (colclot)" <colclot@cisco.com>, "Grant Likely" <grant.likely@secretlab.ca>
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Thread-topic: [RFC PATCH 0/2] The Device Tree Patch for MIPS
The device tree applies an ascii format to describe a hardware layout,
which is then converted into a flattened binary representation by dtc
(the "device tree compiler"). A bootloader supporting device trees loads
the flattened device tree into memory as a binary blob, and passes the
linux kernel a pointer to this blob. The kernel then uses a built-in
device tree parser to interpret the hardware layout.

The device tree code had been in some of platforms (powerpc, sparc, and
microblaze) for a long period, it has been ported to ARM platform
recently. Grant Likely (the device tree maintainer,
glikely@secretlab.ca) has put a lot of effort to eliminate the
duplication in arch-specific code (like prior 2.6.33.1 kernel) so that
it becomes easy to get the device tree working with a new platform.

The patches are intended to support the device tree in MIPS. It is
ported against the new test branch (git://git.secretlab.ca/git/linux-2.6
test-devicetree).


Dezhong

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