Re: [RFC] [PATCH] Device Tree on ARM platform

From: Grant Likely
Date: Thu May 28 2009 - 10:40:13 EST

On Thu, May 28, 2009 at 6:47 AM, Jon Smirl <jonsmirl@xxxxxxxxx> wrote:
> On Thu, May 28, 2009 at 5:15 AM, Russell King - ARM Linux
> For ARM the model could be to use the machine number to load a device
> tree built into the kernel (these trees would slowly migrate into the
> firmware). After the device tree is selected the machine specific code
> would add the override function pointers. Unified OF aware device
> drivers would load using the device tree. These drivers would find the
> function pointers and use them to implement machine specific features.

Nagging point: it is not encouraged to move the device tree into the
firmware. It is useful to *pass* the device tree via the kernel, but
hard linking it in is the way of pain because it makes updates hard.
This is probably what you meant, but I wanted to clarify.


Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at