Re: [Openocd-development] PXA270: can read/write the core registers, but can't read memory and registers of the devices on chip

[Sergey L. <sla...@gm...>]

I have the same kind of problem on Colibri PXA270 module, with different b/l
so I'll add a bit.

On Thu, Dec 4, 2008 at 2:53 AM, Duane Ellis <op...@du...> wrote:
> dswei wrote> [pxa270 - I can change cpu regs, not memory, target is in
> USER mode]
>
>
> Question #2 - Maybe UBOOT is turning the CPU cache on and configuring
> the MMU in some special way?
No, eboot and u-boot do not configure anything regarding MMU.
CPU cache is probably turned on somehow, though, but there's no
indication regarding this.

>
> Maybe below describes the problem?
>
> For example - maybe UBOOT has configured virtual memory to be
> *NOT*PRESENT* at location 0 (and others).
both u-boot and eboot think in terms of physical memory and never touch MMU.

I can test anything which could help somehow to resolve PXA270 problems