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powerpc: wii: allow ioremap within the memory hole 

Enable the flag that allows a platform to ioremap memory marked
as reserved.

This is currently needed on the Nintendo Wii video game console
due to the workaround introduced in "wii: use both mem1 and mem2 as ram".

This will no longer be needed when proper discontig memory support
for 32-bit PowerPC is added to the kernel.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Albert Herranz 2009-12-12 06:31:55 +00:00 committed by Grant Likely
parent c5df7f7751
commit c0577eeee0
1 changed files with 3 additions and 0 deletions
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3
arch/powerpc/platforms/embedded6xx/wii.c
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@ -97,6 +97,9 @@ void __init wii_memory_fixups(void)
/* reserve the hole */
lmb_reserve(wii_hole_start, wii_hole_size);
/* allow ioremapping the address space in the hole */
__allow_ioremap_reserved = 1;
}
unsigned long __init wii_mmu_mapin_mem2(unsigned long top)