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, val;
 	char buf[2048];		/* early stack supposedly big enough */
 	vm_offset_t dtbp;
 	phandle_t chosen;
@@ -256,6 +258,13 @@
 	chosen = OF_finddevice("/chosen");
 	if (OF_getprop(chosen, "bootargs", buf, sizeof(buf)) != -1)
 		_parse_bootargs(buf);
+
+	/*
+	 * Try to grab physical memory regions information from device tree.
+	 * Override value provided by miniboot on success.
+	 */
+	if (fdt_get_mem_regions(mr, &mr_cnt, &val) == 0)
+		memsize = val;
 #endif