[U-Boot] RTC value corruption on QIL-A9G20 startup

Stephen Caudle stephen at doceme.com
Fri Aug 28 03:57:25 CEST 2009


On Thu, Aug 27, 2009 at 1:48 PM, William C. Landolina<wcl at techatl.com> wrote:
> Has there been any resolution on this?  From what I can see (with scope and logic analyzer) the RTC seems to be corrupted by the DataFlash boot code built into the chip.  [The Calao board doesn't have the DataFlash memory and used the chip select for its RTC instead...]

No resolution here.  I am still seeing the problem (even on the next
branch).  This definitely seems to be caused by the processor boot
ROM.

> Has anyone found a smoking gun inside U-Boot or will we have to wait for Calao to make boards with the RTC on a different chip select?

I believe a hardware change is the only way to fix this problem.

Regards,
Stephen


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