Index: sys/mips/beri/beri_machdep.c
===================================================================
--- sys/mips/beri/beri_machdep.c	(revision 275828)
+++ sys/mips/beri/beri_machdep.c	(working copy)
@@ -88,6 +88,11 @@
 mips_init(void)
 {
 	int i;
+#ifdef FDT
+	struct mem_region mr[FDT_MEM_REGIONS];
+	int mr_cnt, val;
+	int j;
+#endif
 
 	for (i = 0; i < 10; i++) {
 		phys_avail[i] = 0;
@@ -102,6 +107,29 @@
 
 	physmem = realmem;
 
+#ifdef FDT
+	if (fdt_get_mem_regions(mr, &mr_cnt, &val) == 0) {
+
+		physmem = btoc(val);
+
+		KASSERT((phys_avail[0] >= mr[0].mr_start) && \
+			(phys_avail[0] < (mr[0].mr_start + mr[0].mr_size)),
+			("First region is not within FDT memory range"));
+
+		/* Limit size of the first region */
+		phys_avail[1] = MIN(mr[0].mr_size, ctob(realmem));
+		dump_avail[1] = phys_avail[1];
+
+		/* Add the rest of regions */
+		for (i = 1, j = 2; i < mr_cnt; i++, j+=2) {
+			phys_avail[j] = mr[i].mr_start;
+			phys_avail[j+1] = mr[i].mr_size;
+			dump_avail[j] = phys_avail[j];
+			dump_avail[j+1] = phys_avail[j+1];
+		}
+	}
+#endif
+
 	init_param1();
 	init_param2(physmem);
 	mips_cpu_init();

Index: sys/boot/fdt/dts/mips/beri-netfpga.dts
===================================================================
--- sys/boot/fdt/dts/mips/beri-netfpga.dts	(revision 275828)
+++ sys/boot/fdt/dts/mips/beri-netfpga.dts	(working copy)
@@ -82,6 +82,11 @@
 */
 	};
 
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x0FFFFFFF>;		// ~256M at 0x0
+	};
+
 	soc {
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -94,11 +99,6 @@
 		compatible = "simple-bus", "mips,mips4k";
 		ranges = <>;
 
-		memory {
-			device_type = "memory";
-			reg = <0x0 0x0FFFFFFF>;		// ~256M at 0x0
-		};
-
 		beripic: beripic@7f804000 {
 			compatible = "sri-cambridge,beri-pic";
 			interrupt-controller;
Index: sys/boot/fdt/dts/mips/beri-sim.dts
===================================================================
--- sys/boot/fdt/dts/mips/beri-sim.dts	(revision 275828)
+++ sys/boot/fdt/dts/mips/beri-sim.dts	(working copy)
@@ -80,6 +80,11 @@
 */
 	};
 
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x4000000>;		// 64M at 0x0
+	};
+
 	soc {
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -92,11 +97,6 @@
 		compatible = "simple-bus", "mips,mips4k";
 		ranges = <>;
 
-		memory {
-			device_type = "memory";
-			reg = <0x0 0x4000000>;		// 64M at 0x0
-		};
-
 		beripic0: beripic@7f804000 {
 			compatible = "sri-cambridge,beri-pic";
 			interrupt-controller;
Index: sys/boot/fdt/dts/mips/beripad-de4.dts
===================================================================
--- sys/boot/fdt/dts/mips/beripad-de4.dts	(revision 275828)
+++ sys/boot/fdt/dts/mips/beripad-de4.dts	(working copy)
@@ -80,6 +80,11 @@
 */
 	};
 
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x40000000>;		// 1G at 0x0
+	};
+
 	soc {
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -92,11 +97,6 @@
 		compatible = "simple-bus", "mips,mips4k";
 		ranges = <>;
 
-		memory {
-			device_type = "memory";
-			reg = <0x0 0x40000000>;		// 1G at 0x0
-		};
-
 		beripic0: beripic@7f804000 {
 			compatible = "sri-cambridge,beri-pic";
 			interrupt-controller;