[U-Boot-Users] Re: [Patch] JSE SDRAM size probing

Stephen Williams steve at icarus.com
Sat Jan 21 17:32:55 CET 2006

Wolfgang Denk wrote:
> In message <dqs4i8$srl$1 at sea.gmane.org> you wrote:
>> Uh, because I can't find it? This board doesn't have an SPD bus, if
>> that is what you mean.
> That's not what I  mean.  I  was  thinking  of  common/memsize.c  and
> post/memory.c,  for  example.  Eventually  about  CFG_ALT_MEMTEST  in
> common/cmd_mem.c, too.

Oh. Well, besides the point that only 8 lines of my function are the
memory size probe (3 writes into memory and 1 read per bank) the
get_ram_size function doesn't address mapping of two banks once the
sizes are detected. That is where most of my effort went.

Also, Stefan Roese points out the cpu/ppc4xx/sdram.c file, but
that only handles 1 bank (and so obviously doesn't do mapping,
which is largely what I worried about) and uses hard coded timings
different from those appropriate for my board.

So I'll stick with my code for now, although  I'll keep a watch on
the changes that Stefan suggests are coming.

Steve Williams                "The woods are lovely, dark and deep.
steve at icarus.com           But I have promises to keep,
http://www.icarus.com         and lines to code before I sleep,
http://www.picturel.com       And lines to code before I sleep."

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