[U-Boot] [PATCH] Honor /memory/reg node in DTB files

Hollis Blanchard
2010-12-08T18:30:25Z

On 12/07/2010 11:09 AM, Wolfgang Denk wrote:
> There are many board vendors who shipt boards with different
> configurations - with or without NAND flash; with or without other
> peripherals like CAN contollers, LCD, etc.; with different LCD sizes
> and types, in portrait or landscape orientation, etc. Some of these
> features can be determined by probing the hardware, others (like the
> orientation of a LCD) cannot. It is sometimes a maintenance nightmare
> to provide tens of different configurations of U-Boot for a single
> product. Being able to cinfigure available hardware through the DT,
> and using a single common binary image of U-Boot for such systems
> would be a great benefit.
That's fine, but so far I don't see how it's related. This is
information u-boot needs during its own initialization, right?

We need a way for our tools to specify information to the kernels'
initialization, and still want u-boot to do all the hardware
configuration it does today. It really doesn't matter to us if in the
future u-boot uses device trees for that configuration: we just need a
way to interact with the kernels.

Hollis Blanchard
Mentor Graphics, Embedded Systems Division