diff --git a/arch/mips/au1000/db1x00/init.c b/arch/mips/au1000/db1x00/init.c
index 4b9d5e46edbb..41e0522f3cf1 100644
--- a/arch/mips/au1000/db1x00/init.c
+++ b/arch/mips/au1000/db1x00/init.c
@@ -61,7 +61,17 @@ void __init prom_init(void)
 	prom_envp = (char **) fw_arg2;
 
 	mips_machgroup = MACH_GROUP_ALCHEMY;
-	mips_machtype = MACH_DB1000;	/* set the platform # */
+
+	/* Set the platform # */
+#if	defined (CONFIG_MIPS_DB1550)
+	mips_machtype = MACH_DB1550;
+#elif	defined (CONFIG_MIPS_DB1500)
+	mips_machtype = MACH_DB1500;
+#elif	defined (CONFIG_MIPS_DB1100)
+	mips_machtype = MACH_DB1100;
+#else
+	mips_machtype = MACH_DB1000;
+#endif
 
 	prom_init_cmdline();