Max RAM for Linux only 1GB?

Folks,

I have over 1GB DIMM RAM on my board running PPC 405.
How can i ioremap that to my OS? As Linux virtual
space starts at 0xC0000000, we have only 1GB more for
all virtual space mappings.

Even if i move 0xC0000000 to 0x80000000, what will
happen to TLB settings? Any problem there to map 1GB
additional RAM?

Any idea as to how i can do this?

Thanks,
Prakash


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