diff --git a/configs/P1021RDB-PC_36BIT_defconfig b/configs/P1021RDB-PC_36BIT_defconfig
new file mode 100644
index 0000000..eae7d2d
--- /dev/null
+++ b/configs/P1021RDB-PC_36BIT_defconfig
@@ -0,0 +1,4 @@
+CONFIG_SYS_EXTRA_OPTIONS="P1021RDB,36BIT"
+CONFIG_PPC=y
+CONFIG_MPC85xx=y
+CONFIG_TARGET_P1_P2_RDB_PC=y