diff --git a/ports/arm/platforms/dm36x/dm36x-io.h b/ports/arm/platforms/dm36x/dm36x-io.h
index 5a93ca1..56bfde3 100644
--- a/ports/arm/platforms/dm36x/dm36x-io.h
+++ b/ports/arm/platforms/dm36x/dm36x-io.h
@@ -57,8 +57,12 @@
 #define DM36X_INTC_IRQ0			0x08
 #define DM36X_INTC_IRQ1			0x0C
 #define DM36X_INTC_IRQENTRY		0x10
+#define DM36X_INTC_EINT1		0x1C
+#define DM36X_INTC_INTCTL		0x20
+#define DM36X_INTC_EABASE		0x24
 #define DM36X_INTC_VEC_TINT0	32
 
+#define DM36X_UART0_BASE		0x01C20000 /* UART0 */
 #define DM36X_UART1_BASE		0x01D06000 /* UART1 */