[PATCH] ppc64: Fix boot on some non-LPAR pSeries

This patch fixes a problem when allocating the TCE tables (iommu) during
early boot on some non-LPAR machines with a lot of memory.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc64/kernel/prom_init.c

@@ -675,7 +675,7 @@ static void __init prom_init_mem(void)
 	if ( RELOC(of_platform) == PLATFORM_PSERIES_LPAR )
 		RELOC(alloc_top) = RELOC(rmo_top);
 	else
-		RELOC(alloc_top) = min(0x40000000ul, RELOC(ram_top));
+		RELOC(alloc_top) = RELOC(rmo_top) = min(0x40000000ul, RELOC(ram_top));
 	RELOC(alloc_bottom) = PAGE_ALIGN(RELOC(klimit) - offset + 0x4000);
 	RELOC(alloc_top_high) = RELOC(ram_top);