-#define MVME147_IRQ_SCC_BASE 0x60
-#define MVME147_IRQ_SCCB_TX 0x60
-#define MVME147_IRQ_SCCB_STAT 0x62
-#define MVME147_IRQ_SCCB_RX 0x64
-#define MVME147_IRQ_SCCB_SPCOND 0x66
-#define MVME147_IRQ_SCCA_TX 0x68
-#define MVME147_IRQ_SCCA_STAT 0x6a
-#define MVME147_IRQ_SCCA_RX 0x6c
-#define MVME147_IRQ_SCCA_SPCOND 0x6e
+#define MVME147_IRQ_SCC_BASE (IRQ_USER+32)
+#define MVME147_IRQ_SCCB_TX (IRQ_USER+32)
+#define MVME147_IRQ_SCCB_STAT (IRQ_USER+34)
+#define MVME147_IRQ_SCCB_RX (IRQ_USER+36)
+#define MVME147_IRQ_SCCB_SPCOND (IRQ_USER+38)
+#define MVME147_IRQ_SCCA_TX (IRQ_USER+40)
+#define MVME147_IRQ_SCCA_STAT (IRQ_USER+42)
+#define MVME147_IRQ_SCCA_RX (IRQ_USER+44)
+#define MVME147_IRQ_SCCA_SPCOND (IRQ_USER+46)