[U-Boot] [PATCH] [RFC] memsize.c: adapt get_ram_size() for address spaces >32 bit

Wolfgang Denk wd at denx.de
Thu May 27 23:06:58 CEST 2010


Dear Scott Wood,

In message <4BFED0CD.5010301 at freescale.com> you wrote:
>
> Not using get_ram_size(), which is of minimal utility when you know the 
> actual size (and is an unsafe approach to the problem when you don't, 
> unless you know a lot about where I/O is mapped and how the system 
> responds to accessing memory that doesn't exist -- not exactly the sort 
> of thing you want to make a mandate for any board to be accepted), seems 
> like a good way to "fix it".

Come on. Anybody who does NOT know the exact memory map of a system
(and is able to define it as needed) is obviously not in a position to
port U-Boot to this hardware.

This is basic knowledge.

> "All other PowerPC systems" is a ridiculous overstatement.  I see 
> exactly *one* Freescale board that uses this thing, and it's an ARM board.

And this uses it incorrectly, like all ARM boards, if I'm not wrong.

Well, there is a ton of other boards besides the ones manufactured by
Freescale, including many that use Freescale chips.

I am not to blame if Freescale did not pick up a number of design
concepts.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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