sh / sh64: Remove ZONE_DMA remains.

Both arches do not need ZONE_DMA

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Christoph Lameter <clameter@sgi.com>

Index: linux-2.6.18-rc6-mm2/arch/sh/mm/init.c
===================================================================
--- linux-2.6.18-rc6-mm2.orig/arch/sh/mm/init.c	2006-09-18 20:45:24.263542866 -0500
+++ linux-2.6.18-rc6-mm2/arch/sh/mm/init.c	2006-09-18 20:48:00.134271289 -0500
@@ -156,7 +156,6 @@ void __init paging_init(void)
 	 * Setup some defaults for the zone sizes.. these should be safe
 	 * regardless of distcontiguous memory or MMU settings.
 	 */
-	zones_size[ZONE_DMA] = 0 >> PAGE_SHIFT;
 	zones_size[ZONE_NORMAL] = __MEMORY_SIZE >> PAGE_SHIFT;
 #ifdef CONFIG_HIGHMEM
 	zones_size[ZONE_HIGHMEM] = 0 >> PAGE_SHIFT;
@@ -168,7 +167,6 @@ void __init paging_init(void)
 	 * the zone sizes accordingly, in addition to turning it on.
 	 */
 	{
-		unsigned long max_dma, low, start_pfn;
 		pgd_t *pg_dir;
 		int i;
 
@@ -180,19 +178,7 @@ void __init paging_init(void)
 
 		/* Turn on the MMU */
 		enable_mmu();
-
-		/* Fixup the zone sizes */
-		start_pfn = START_PFN;
-		max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
-		low = MAX_LOW_PFN;
-
-		if (low < max_dma) {
-			zones_size[ZONE_DMA] = low - start_pfn;
-			zones_size[ZONE_NORMAL] = 0;
-		} else {
-			zones_size[ZONE_DMA] = max_dma - start_pfn;
-			zones_size[ZONE_NORMAL] = low - max_dma;
-		}
+		zones_size[ZONE_NORMAL] = MAX_LOW_PFN - START_PFN;
 	}
 
 #elif defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4)
Index: linux-2.6.18-rc6-mm2/arch/sh64/mm/init.c
===================================================================
--- linux-2.6.18-rc6-mm2.orig/arch/sh64/mm/init.c	2006-09-18 20:45:24.292842243 -0500
+++ linux-2.6.18-rc6-mm2/arch/sh64/mm/init.c	2006-09-18 20:45:43.562065577 -0500
@@ -118,10 +118,7 @@ void __init paging_init(void)
 
 	mmu_context_cache = MMU_CONTEXT_FIRST_VERSION;
 
-        /*
-	 * All memory is good as ZONE_NORMAL (fall-through) and ZONE_DMA.
-         */
-	zones_size[ZONE_DMA] = MAX_LOW_PFN - START_PFN;
+	zones_size[ZONE_NORMAL] = MAX_LOW_PFN - START_PFN;
 	NODE_DATA(0)->node_mem_map = NULL;
 	free_area_init_node(0, NODE_DATA(0), zones_size, __MEMORY_START >> PAGE_SHIFT, 0);
 }
Index: linux-2.6.18-rc6-mm2/arch/sh64/Kconfig
===================================================================
--- linux-2.6.18-rc6-mm2.orig/arch/sh64/Kconfig	2006-09-18 20:45:24.341674537 -0500
+++ linux-2.6.18-rc6-mm2/arch/sh64/Kconfig	2006-09-18 20:45:43.568902098 -0500
@@ -36,9 +36,6 @@ config GENERIC_CALIBRATE_DELAY
 config RWSEM_XCHGADD_ALGORITHM
 	bool
 
-config GENERIC_ISA_DMA
-	bool
-
 source init/Kconfig
 
 menu "System type"