diff --git a/configs/P4080DS_SDCARD_defconfig b/configs/P4080DS_SDCARD_defconfig
index 888a0e0..bd66e31 100644
--- a/configs/P4080DS_SDCARD_defconfig
+++ b/configs/P4080DS_SDCARD_defconfig
@@ -12,6 +12,7 @@
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
 CONFIG_SYS_EXTRA_OPTIONS="SDCARD"
+CONFIG_DYNAMIC_SYS_CLK_FREQ=y
 CONFIG_RAMBOOT_PBL=y
 CONFIG_SYS_FSL_PBL_PBI="board/freescale/corenet_ds/pbi.cfg"
 CONFIG_SYS_FSL_PBL_RCW="board/freescale/corenet_ds/rcw_p4080ds.cfg"