--- zzzz-none-000/linux-2.6.13.1/include/linux/mmzone.h	2005-09-10 02:42:58.000000000 +0000
+++ ohio-7170-487/linux-2.6.13.1/include/linux/mmzone.h	2006-11-06 16:02:03.000000000 +0000
@@ -581,7 +581,33 @@
 #endif
 
 #ifndef early_pfn_valid
+#ifdef CONFIG_MIPS_OHIO
+#define early_pfn_valid(pfn)	((pfn) >= (CONFIG_MIPS_OHIO_PHY_MEMSTART >> 12))
+/* static __inline int early_pfn_valid(unsigned long pfn) {   */ 
+    /*--- static unsigned int count = 0; ---*/
+    /*--- if((count++ & 0xFF) == 0) ---*/
+    /*--- printk("[pfn=0x%lx]", pfn); ---*/ 
+/*      return pfn >= (CONFIG_MIPS_OHIO_PHY_MEMSTART >> 12);  */ 
+/*  } */ 
+#elif CONFIG_MIPS_AR7
+#define early_pfn_valid(pfn)	((pfn) >= (CONFIG_MIPS_AR7_PHY_MEMSTART >> 12))
+/* static __inline int early_pfn_valid(unsigned long pfn) {   */ 
+    /*--- static unsigned int count = 0; ---*/
+    /*--- if((count++ & 0xFF) == 0) ---*/
+    /*--- printk("[pfn=0x%lx]", pfn); ---*/ 
+/*      return pfn >= (CONFIG_MIPS_OHIO_PHY_MEMSTART >> 12);  */ 
+/*  } */ 
+#elif CONFIG_MIPS_UR8
+#define early_pfn_valid(pfn)	((pfn) >= (CONFIG_MIPS_UR8_PHY_MEMSTART >> 12))
+/* static __inline int early_pfn_valid(unsigned long pfn) {   */ 
+    /*--- static unsigned int count = 0; ---*/
+    /*--- if((count++ & 0xFF) == 0) ---*/
+    /*--- printk("[pfn=0x%lx]", pfn); ---*/ 
+/*      return pfn >= (CONFIG_MIPS_UR8_PHY_MEMSTART >> 12);  */ 
+/*  } */ 
+#else /*--- #ifdef CONFIG_MIPS_OHIO ---*/
 #define early_pfn_valid(pfn)	(1)
+#endif /*--- #else ---*/ /*--- #ifdef CONFIG_MIPS_OHIO ---*/
 #endif
 
 void memory_present(int nid, unsigned long start, unsigned long end);