Maximum ioremap size for ppc arch?

michael.firth at michael.firth at
Mon Dec 3 20:22:06 EST 2007

I'm trying to get am MPC834x system running that has 256MBytes of NOR
flash connected.

The physmap flash driver is failing to ioremap() that amount of space,
while on a similar system with 128Mbytes of flash, there are no

Is this a known limitation of ioremap() on the ppc architecture, or
specifically the MPC834x family, and is there any (hopefully easy) way
to increase this limit?



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