[U-Boot-Users] [PATCH 3/4] PPC4xx: Add 440EPx DDR2 SPD DIMM support

[Larry Johnson]

This patch adds SPD DDR2 support for the 440EPx ("Denali") SDRAM
controller.  It should also work on the 440GRx.  It is based on the DDR2
SPD code for the 440EP/440EPx, but makes no provision for DDR1 support.

This code has been tested on prototype Korat boards with three Kingston
DIMMS: 512 MiB ECC (one rank), 512 MiB non-ECC (one rank) and 1 GiB ECC
(two ranks).  The Korat board has a single DIMM socket, but support has
been provided (though not tested) for boards with two DIMM sockets.

Signed-off-by: Larry Johnson <lrj at acm.org>
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[This patch creates a single file, but slightly exceeds the 40 KiB limit
for the mailing list.  It is available at
"http://k1lj.home.att.net/u-boot/2007102400-patch3.txt".]