diff --git a/configs/P1021RDB-PC_36BIT_SPIFLASH_defconfig b/configs/P1021RDB-PC_36BIT_SPIFLASH_defconfig
index 09ba6ea..af880fd 100644
--- a/configs/P1021RDB-PC_36BIT_SPIFLASH_defconfig
+++ b/configs/P1021RDB-PC_36BIT_SPIFLASH_defconfig
@@ -1,12 +1,13 @@
 CONFIG_PPC=y
 CONFIG_MPC85xx=y
 CONFIG_TARGET_P1_P2_RDB_PC=y
+CONFIG_PHYS_64BIT=y
 CONFIG_SPL=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
-CONFIG_SYS_EXTRA_OPTIONS="P1021RDB,36BIT,SPIFLASH"
+CONFIG_SYS_EXTRA_OPTIONS="P1021RDB,SPIFLASH"
 CONFIG_BOOTDELAY=10
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_MMC=y