diff --git a/include/configs/mpc5121ads.h b/include/configs/mpc5121ads.h
index a64df61..6e6af62 100644
--- a/include/configs/mpc5121ads.h
+++ b/include/configs/mpc5121ads.h
@@ -312,6 +312,27 @@
 #endif
 
 /*
+ * Clocks in use
+ */
+#define SCCR1_CLOCKS_EN	(CLOCK_SCCR1_CFG_EN |				\
+			 CLOCK_SCCR1_DDR_EN |				\
+			 CLOCK_SCCR1_FEC_EN |				\
+			 CLOCK_SCCR1_LPC_EN |				\
+			 CLOCK_SCCR1_NFC_EN |				\
+			 CLOCK_SCCR1_PATA_EN |				\
+			 CLOCK_SCCR1_PCI_EN |				\
+			 CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) |	\
+			 CLOCK_SCCR1_PSCFIFO_EN |			\
+			 CLOCK_SCCR1_TPR_EN)
+
+#define SCCR2_CLOCKS_EN	(CLOCK_SCCR2_DIU_EN |		\
+			 CLOCK_SCCR2_I2C_EN |		\
+			 CLOCK_SCCR2_MEM_EN |		\
+			 CLOCK_SCCR2_SPDIF_EN |		\
+			 CLOCK_SCCR2_USB1_EN |		\
+			 CLOCK_SCCR2_USB2_EN)
+
+/*
  * PCI
  */
 #ifdef CONFIG_PCI