All,

my MPC8343 based system is running fine, but I'm not able to use more than 256MB of memory.

Is this a general or known issue ?

I'm not quite sure where the problem is since u-boot *seems* to be running fine.

Situation :

- 2 Micron 16-Bit (2 GBits each) chips soldered down on the board giving 512MByte total. - Connected to CS0 @ 32-Bit memory bus. - memory size defined and recognized correctly - set up CS0_BNDS for 512MB - set up BAT0 + BAT7 for mapping (a single BAT is limited to 256MB). - configure cpu to use high BATs by setting HBE bit in CFG_HID2. - dtb memory size set up correctly and "mtest" works all day from 16M to 500M ....

Booting a 2.6.25 kernel crashes during dtb parsing. Limiting memory size to 256MB and skipping BAT7 gives a running system.

At first glance this looks like a topic for the linuxppc list. But it *could* also be a u-boot related issue ...

Any help is welcome !

regards, André Schwarz

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