diff --git a/configs/P1020RDB-PC_36BIT_SPIFLASH_defconfig b/configs/P1020RDB-PC_36BIT_SPIFLASH_defconfig
index c5a64de..3f5a7ce 100644
--- a/configs/P1020RDB-PC_36BIT_SPIFLASH_defconfig
+++ b/configs/P1020RDB-PC_36BIT_SPIFLASH_defconfig
@@ -1,4 +1,5 @@
 CONFIG_PPC=y
+CONFIG_SYS_IMMR=0xFFE00000
 CONFIG_SYS_TEXT_BASE=0x11001000
 CONFIG_SYS_MALLOC_LEN=0x100000
 CONFIG_SPL_LIBCOMMON_SUPPORT=y