[U-Boot] Default LAWBAR mapping at reset for mpc85xx?

Wolfgang Denk wd at denx.de
Thu May 3 15:11:33 CEST 2012


Dear Joakim,

In message <OF35057017.5788F889-ONC12579F3.00427B35-C12579F3.0044277A at transmode.se> you wrote:
>
> I found the problem, u-boot is somewhat flawed, it requires CONFIG_SYS_MONITOR_BASE
> to be "base 2 even", must land on a 256K or 512K or 1024K address. I had

This is not a generic U-Boot problem, just one oif the 85xx
implementation.

> On a related matter, I believe that one should be able to have a minimal emulator
> config that allows you to both program flash efficiently and debug u-boot
> via BDI/gdb.
> I have always managed to do this before with our earlier freescale CPUs but now
> seems hard(impossible?) with the current u-boot design. It is a major
> pain to change emul config each time you do the burn flash/debug cycle.

I agree with you - but again, this is "only" a 85xx issue, not a
generic U-Boot design problem.


I know, this doesn't help you much...

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
"If anything can go wrong, it will."                   - Edsel Murphy


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