Improved the memory DIMM detection for the Yucca 440SPe board for the case where a memory DIMM is falsely detected as present.

This issue is seen on some AMCC Yucca 440SPe validation boards if only one 512MB memory DIMM is installed, i.e. DIMM slot 0 is populated and DIMM slot 1 is empty. In this case, U-Boot does not correctly detect that there is only one DIMM memory module installed and will falsely detect two DIMM memory modules are present and therefore U-Boot will not calculate the correct amount of total memory and u-boot will not booting up.

Signed-off-by: Adam Graham agraham@amcc.com

CHANGELOG:

* Harden the U-Boot memory DIMMs detection for the AMCC Yucca 440SPe board. Patch by Adam Graham agraham@amcc.com, 23 Aug 2006

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