Commit c7b03fa0 authored Apr 25, 2010 by Matt Fleming

sh: Do not try merging two 128MB PMB mappings



There is a logic error in pmb_merge() that means we will incorrectly try
to merge two 128MB PMB mappings into one mapping. However, 256MB isn't a
valid PMB map size and pmb_merge() will actually drop the second 128MB
mapping.

This patch allows my SDK7786 board to boot when configured with
CONFIG_MEMORY_SIZE=0x10000000.

Signed-off-by: Matt Fleming <matt@console-pimps.org>

parent 9c3d9363

arch/sh/mm/pmb.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -681,7 +681,7 @@ static void __init pmb_merge(struct pmb_entry *head)
		/*
		* The merged page size must be valid.
		*/
		if (!pmb_size_valid(newsize))
		if (!depth \|\| !pmb_size_valid(newsize))
		return;

		head->flags &= ~PMB_SZ_MASK;