[U-Boot] [RFC 1/3] FDT: Add fixup support of multiple banks of memory

Kumar Gala
2010-08-05T23:26:58Z

On Aug 5, 2010, at 5:14 PM, John Rigby wrote:

> Add fdt_fixup_memory_banks and reimplement fdt_fixup_memory
> to use it.
>
> Signed-off-by: John Rigby <john.rigby@linaro.org>
> ---
> common/fdt_support.c | 86 ++++++++++++++++++++++++++-----------------------
> include/fdt_support.h | 1 +
> 2 files changed, 47 insertions(+), 40 deletions(-)

John,

Do you have any sense of how far you intend to go w/device tree's on ARM?

I ask because I've been thinking we actually need to have "live tree" structure representation in u-boot (much like the kernel) to allow us to do some of the manipulations we are doing more and more of.

The problem w/libfdt is that use of 'offsets' to get to nodes can be problematic if the offset changes while manipulating it. There are ways around thus but a number of functions we do would benefit from a more live tree.

Wondering how far you envision ARM going w/device tree and u-boot doing node creations and fix ups.

- k