On Monday 06 October 2014 20:59:28 Robert Jarzmik wrote:
> Dmitry Eremin-Solenikov <dbaryshkov@xxxxxxxxx> writes:
>
> > This reverts commit 2111667b4677 ("ARM: pxa: call debug_ll_io_init for
> > earlyprintk")
> >
> > This commit gives the following backtrace on PXA/tosa early in the boot
> > time when DEBUG_LL is enabled. It is due to overlap between uart memory
> > and PERIPH_ memory block mapped by pxa_map_io.
>
> Indeed, all available UARTs IO mappings are already covered by pxa_map_io(), so
> the revert will remove the bug and keep the DEBUG_LL functionality. I suppose
> you did the test with the revert and the lowlevel debugging works, right ?
>
> Haojian, if you are still taking patches for v3.18-rcs, please have my :
> Reviewed-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>
This is a regression fix, so it should go into 3.18 and 3.17-stable once
everybody agrees that it is the correct solution.
Arnd
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