[PATCH 10/10] ARM: pbl: Add an option to validate DRAM

Sascha Hauer s.hauer at pengutronix.de
Tue May 19 00:06:13 PDT 2015

Hi Andrey,

On Wed, May 13, 2015 at 07:54:27PM -0700, Andrey Smirnov wrote:
> Add an option to perform DRAM region validation before using it. The
> framework allows individual boards to set up a memory validaion hook
> that would be called prior to Barebox using that region of memory.
> Signed-off-by: Andrey Smirnov <andrew.smirnov at gmail.com>

What usecase do you have for this patch? Is it debugging or something
you always want to enable on your hardware? Why must the
validate_memory_range function be board specific?

I see that you call validate_memory_range on potentially large areas of
memory, so I wonder if you can't call validate_memory_range from your
board setup code with the complete memory instead.
I am not very fond of overly using get_runtime_offset to calculate
pointers. Setting callback functions from early code which does not run
on its link address is something I really want to avoid.


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