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Wednesday, February 20 • 3:00pm - 3:50pm
Common Clock Framework: How to Use It - Gregory Clement, Free Electrons

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The common clock framework, which was included in the 3.4 kernel in
the beginning of 2012, is now mandatory to support all new ARM
SoCs. It is also part of the "one zImage to run them all" big plan
of the ARM architecture in the Linux kernel.

After an introduction on why we needed this framework and on the
problems it solves, we will go through the implementation details of
this framework. Then, with real examples, we will focus on how to
use this framework to add clock support to a new ARM SoC. We will
also show how the device tree is used in this process.

The last part of the talk will review how device drivers use this
framework, using examples taken from various parts of the kernel.

Speakers

Gregory Clement

Embedded Linux Software Engineer, Free Electrons
Gregory Clement is an embedded Linux engineer and trainer at Free Electrons since 2010. He has 10 years of on the field experience in porting and operating embedded Linux on many hardware architectures. He is currently involved in the integration of Marvell Armada 370/XP SoC support in the mainline Linux kernel, acting as co-maintainer for the mvebu ARM sub-architecture (which includes the orion5x, mv78x00, kirkwood, dove and Armada 370/XP SoCs).

Attendees (28)

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