Index: sys/mips/beri/beri_machdep.c
===================================================================
--- sys/mips/beri/beri_machdep.c	(revision 275803)
+++ sys/mips/beri/beri_machdep.c	(working copy)
@@ -184,6 +184,8 @@
 	char **envp = (char **)a2;
 	long memsize;
 #ifdef FDT
+	struct mem_region mr[FDT_MEM_REGIONS];
+	int mr_cnt, err, val;
 	char buf[2048];		/* early stack supposedly big enough */
 	vm_offset_t dtbp;
 	phandle_t chosen;
@@ -268,6 +270,16 @@
 	cninit();
 	printf("entry: platform_start()\n");
 
+#ifdef FDT
+	/*
+	 * Try to grab physical memory regions information from device tree.
+	 * Override value provided by miniboot on success.
+	 */
+	err = fdt_get_mem_regions(mr, &mr_cnt, &val);
+	if (err == 0)
+		memsize = val;
+#endif
+
 	bootverbose = 1;
 	if (bootverbose) {
 		printf("cmd line: ");