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.

Patch by Adam Graham, 24 Aug 2006

- auto-adjust console device for Linux.
- fix typos.

- support for configurations with SDRAM or DDR memory,
- support for highboot and lowboot
- adjusting environment definitions

Patch by David Updegraff, 02 Dec 2005

Patch by Cory Tusar, 30 Nov 2005

Patch by Andreas Engel, 28 Nov 2005

Patch by Joachim Jaeger, 18 Nov 2005

Patch by Eric Benard, 17 Nov 2005

Patch by Martin Krause, 07 Aug 2006

Properly pass break code back from readline.
Patch by Roger Blofeld, 31 Jul 2006

Patch by Stefan Roese, 07 Aug 2006

Patch by Stefan Roese, 07 Aug 2006

Patch by Stefan Roese, 07 Aug 2006

problems with some USB storage devices. Some code readability improvements.

AMCC suggested to set the PMU bit to 0 for best performace on
the PPC440 DDR controller.
Please see doc/README.440-DDR-performance for details.
Patch by Stefan Roese, 28 Jul 2006

Please see doc/README.bamboo for details.
Patch by Stefan Roese, 27 Jul 2006

Patch by Stefan Roese, 27 Jul 2006