[U-Boot] RAM Probing for ads5121rev4
Wolfgang Denk
wd at denx.de
Wed Feb 18 10:01:33 CET 2009
Dear Emanuele Placidi,
In message <7c4b93310902180021o56da8320w2084e6a8c09c9509 at mail.gmail.com> you wrote:
>
> In your opinion it is possible to probe the ram before initialize it?
> Unfortunately there are some rev4 which are equipped with different ram
> model.
> Examples are welcomed.
It is a standard feature in U-Boot (and has always been right from
the start with PPCBoot nearly 10 years ago) that we auto-detected the
memory configuration on the boards, both for RAM and flash. Some
boards / architectures did not bother to implement this, but the
feature itself is present.
The details depend on processor, memory controller properties,
specific RAM types used, etc.
In case of the Micron/Elpida issue on the ADS5121, that should be not
too difficult to solve.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
How many QA engineers does it take to screw in a lightbulb? 3: 1 to
screw it in and 2 to say "I told you so" when it doesn't work.
More information about the U-Boot
mailing list