[U-Boot] U-Boot for MPC8360E-RDK with 512MB of DDR2 RAM

[cmfairfa at rockwellcollins.com]

Hi,

I have an MPC8360-RDK board that has 512MB of DDR2 RAM.

I updated the MPC8360ERDK.h file from the latest archive ( 2009.03-rc2) to 
add support for the 512MB of RAM. (from the default 256MB).


Basically, I just did the following:

changed CFG_DDR_SIZE from 256 to 512
changed CFG_DDR_CS0_BNDS from 0x0000000f to 0x0000001f
made CFG_IBAT6L and CFG_IBAT6U match IBAT0L and IBAT0U, respectively 
(except, I changed the BEPI and BRPN fields to be 0x1000 since the upper 
256MB of my RAM should begin at 0x10000000)
set CFG_DBAT6L and CFG_DBAT6U equal to CFG_IBAT6L and CFG_IBAT6U, 
respectively.
make with MPC8360ERDK_33_config
then build the U-Boot binary


Lastly, I've verified, using the RAM data sheet, that the other 
configuration parameters for the RAM should be identical to the default 
values (e.g., row=13, col=10, and timing configurations).

Does anyone have any idea why this doesn't work?

It seems like a pretty trivial update, but it causes U-Boot to hang up at 
the "DRAM:" line (see below).





Thanks


Christopher M. Fairfax
Sr. Software Engineer
Rockwell Collins
+1 540-428-3344
+1 540-428-3301
cmfairfa at rockwellcollins.com
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