Replacement for PSPR

From: Tweeeek (Tariq.Mahmood_at_nospam.com)
Date: 10/29/04 

Date: Fri, 29 Oct 2004 15:38:42 +0100

The SA1110 has a PSPR register whose peoperties I was dependent upon to pass
information from wince image to bootloader and vice versa.

The excerpt below is from the sa1110 manual

The power manager also contains a 32-bit register to save processor
configuration information in any format the user desires. The power manager
scratch pad register (PSPR) is a holding register that is powered by the
VDDx power supply pins and is never reset (only configured via writes).

The register was never reset, even on a cold boot. Unfortunately one of the
bits I relied on is set in this register using an application on the wince
image, a cold boot is then perfomed, the bootloader run and interogates this
bit and decides the next action.

Unfortunately the PSPR register doesn't behave in this way on the PXA255 and
is reset on hardware,wdog and gpio. Is there anyway I can solve this
problem. Any help would be appreciated.

Regards

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