--- zzzz-none-000/linux-2.6.13.1/arch/mips/mm/pgtable.c	2005-09-10 02:42:58.000000000 +0000
+++ ohio-7170-487/linux-2.6.13.1/arch/mips/mm/pgtable.c	2006-11-06 16:02:03.000000000 +0000
@@ -15,8 +15,29 @@
 	show_free_areas();
 	printk("Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
 	pfn = max_mapnr;
+    printk("max_mapnr=%lu\n", max_mapnr);
 	while (pfn-- > 0) {
+#if defined(CONFIG_MIPS_OHIO) 
+        if(pfn < (CONFIG_MIPS_OHIO_PHY_MEMSTART >> PAGE_SHIFT))
+            continue;
+#elif defined(CONFIG_MIPS_AR7)
+        if(pfn < (CONFIG_MIPS_AR7_PHY_MEMSTART >> PAGE_SHIFT))
+            continue;
+#elif defined(CONFIG_MIPS_UR8)
+        if(pfn < (CONFIG_MIPS_UR8_PHY_MEMSTART >> PAGE_SHIFT))
+            continue;
+#endif /*--- #ifdef CONFIG_MIPS_OHIO ---*/
 		page = pfn_to_page(pfn);
+#if defined(CONFIG_MIPS_OHIO) 
+        if((0x1FFFFFFFUL & (unsigned long)page) < CONFIG_MIPS_OHIO_PHY_MEMSTART)
+            continue;
+#elif defined(CONFIG_MIPS_AR7)
+        if((0x1FFFFFFFUL & (unsigned long)page) < CONFIG_MIPS_AR7_PHY_MEMSTART)
+            continue;
+#elif defined(CONFIG_MIPS_UR8)
+        if((0x1FFFFFFFUL & (unsigned long)page) < CONFIG_MIPS_UR8_PHY_MEMSTART)
+            continue;
+#endif /*--- #ifdef CONFIG_MIPS_OHIO ---*/
 		total++;
 		if (PageHighMem(page))
 			highmem++;