diff --git a/include/ioports.h b/include/ioports.h
new file mode 100644
index 0000000..8f5947f
--- /dev/null
+++ b/include/ioports.h
@@ -0,0 +1,51 @@
+/*
+ * definitions for MPC8260 I/O Ports
+ *
+ * (in addition to those provided in <asm/immap_8260.h>)
+ *
+ * Murray.Jensen@cmst.csiro.au, 20-Oct-00
+ */
+
+/*
+ * this structure mirrors the layout of the five port registers in
+ * the internal memory map - see iop8260_t in <asm/immap_8260.h>
+ */
+typedef struct {
+    unsigned int pdir;		/* Port Data Direction Register (35-3) */
+    unsigned int ppar;		/* Port Pin Assignment Register (35-4) */
+    unsigned int psor;		/* Port Special Options Register (35-5) */
+    unsigned int podr;		/* Port Open Drain Register (35-2) */
+    unsigned int pdat;		/* Port Data Register (35-3) */
+} ioport_t;
+
+/*
+ * this macro calculates the address within the internal
+ * memory map (im) of the set of registers for a port (idx)
+ *
+ * the internal memory map aligns the above structure on
+ * a 0x20 byte boundary
+ */
+#define ioport_addr(im, idx) (ioport_t *)((uint)&(im)->im_ioport + ((idx)*0x20))
+
+/*
+ * this structure provides configuration
+ * information for one port pin
+ */
+typedef struct {
+    unsigned char conf:1;	/* if 1, configure this port */
+    unsigned char ppar:1;	/* Port Pin Assignment Register (35-4) */
+    unsigned char psor:1;	/* Port Special Options Register (35-2) */
+    unsigned char pdir:1;	/* Port Data Direction Register (35-3) */
+    unsigned char podr:1;	/* Port Open Drain Register (35-2) */
+    unsigned char pdat:1;	/* Port Data Register (35-2) */
+} iop_conf_t;
+
+/*
+ * a table that contains configuration information for all 32 pins
+ * of all four MPC8260 I/O ports.
+ *
+ * NOTE: in the second dimension of this table, index 0 refers to pin 31
+ * and index 31 refers to pin 0. this made the code in the table look more
+ * like the table in the 8260UM (and in the hymod manuals).
+ */
+extern const iop_conf_t iop_conf_tab[4][32];
diff --git a/include/mpc8260_irq.h b/include/mpc8260_irq.h
new file mode 100644
index 0000000..046dd32
--- /dev/null
+++ b/include/mpc8260_irq.h
@@ -0,0 +1,41 @@
+#ifndef _MPC8260_IRQ_H
+#define _MPC8260_IRQ_H
+
+/****************************************************************************/
+/* most of this was ripped out of include/asm-ppc/irq.h from the Linux/PPC  */
+/* source. There was no copyright information in the file.		    */
+
+/*
+ * this is the # irq's for all ppc arch's (pmac/chrp/prep)
+ * so it is the max of them all
+ *
+ * [let's just worry about 8260 for now - mjj]
+ */
+#define NR_IRQS			64
+
+/* The 8260 has an internal interrupt controller with a maximum of
+ * 64 IRQs.  We will use NR_IRQs from above since it is large enough.
+ * Don't be confused by the 8260 documentation where they list an
+ * "interrupt number" and "interrupt vector".  We are only interested
+ * in the interrupt vector.  There are "reserved" holes where the
+ * vector number increases, but the interrupt number in the table does not.
+ * (Document errata updates have fixed this...make sure you have up to
+ * date processor documentation -- Dan).
+ */
+#define NR_SIU_INTS	64
+
+/* There are many more than these, we will add them as we need them.
+*/
+#define	SIU_INT_SMC1		((uint)0x04)
+#define	SIU_INT_SMC2		((uint)0x05)
+#define	SIU_INT_FCC1		((uint)0x20)
+#define	SIU_INT_FCC2		((uint)0x21)
+#define	SIU_INT_FCC3		((uint)0x22)
+#define	SIU_INT_SCC1		((uint)0x28)
+#define	SIU_INT_SCC2		((uint)0x29)
+#define	SIU_INT_SCC3		((uint)0x2a)
+#define	SIU_INT_SCC4		((uint)0x2b)
+
+#define NR_MASK_WORDS	((NR_IRQS + 31) / 32)
+
+#endif /* _MPC8260_IRQ_H */