[PATCH] [v3] powerpc/4xx: work around CHIP11 errata in a more PAGE_SIZE-friendly way

David Gibson dwg at au1.ibm.com
Wed Nov 12 11:09:30 EST 2008


On Tue, Nov 11, 2008 at 06:06:46PM -0600, Hollis Blanchard wrote:
> The current CHIP11 errata truncates the device tree memory node, and subtracts
> (hardcoded) 4096 bytes. This breaks kernels with larger PAGE_SIZE, since the
> bootmem allocator assumes that total memory is a multiple of PAGE_SIZE.
> 
> Instead, use a device tree memory reservation to reserve only the 256 bytes
> actually affected by the errata, leaving the total memory size unaltered.
> 
> Signed-off-by: Hollis Blanchard <hollisb at us.ibm.com>

libfdt usage changes look fine to me.

Acked-by: David Gibson <david at gibson.dropbear.id.au>

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson



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