diff --git a/sys/arch/arm32/podulebus/podulebus_io.c b/sys/arch/arm32/podulebus/podulebus_io.c
new file mode 100644
index 000000000000..64e6e6683dc7
--- /dev/null
+++ b/sys/arch/arm32/podulebus/podulebus_io.c
@@ -0,0 +1,186 @@
+/*	$NetBSD: podulebus_io.c,v 1.1 1997/01/17 01:00:47 mark Exp $	*/
+
+/*
+ * Copyright (c) 1997 Mark Brinicombe.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Mark Brinicombe.
+ * 4. The name of the company nor the name of the author may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * bus_space I/O functions for podulebus
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <machine/bus.h>
+
+/* Proto types for all the bus_space structure functions */
+
+bs_protos(podulebus);
+
+/* Declare the podulebus bus space tag */
+
+struct bus_space podulebus_bs_tag = {
+	/* cookie */
+	NULL,
+
+	/* mapping/unmapping */
+	podulebus_map,
+	podulebus_unmap,
+	podulebus_subregion,
+
+	/* allocation/deallocation */
+	podulebus_alloc,
+	podulebus_free,
+
+	/* read (single) */
+	podulebus_r_1,
+	podulebus_r_2,
+	podulebus_r_4,
+	podulebus_r_8,
+
+	/* read multi */
+	podulebus_rm_1,
+	podulebus_rm_2,
+	podulebus_rm_4,
+	podulebus_rm_8,
+
+	/* read region */
+	podulebus_rr_1,
+	podulebus_rr_2,
+	podulebus_rr_4,
+	podulebus_rr_8,
+
+	/* write (single) */
+	podulebus_w_1,
+	podulebus_w_2,
+	podulebus_w_4,
+	podulebus_w_8,
+
+	/* write multi */
+	podulebus_wm_1,
+	podulebus_wm_2,
+	podulebus_wm_4,
+	podulebus_wm_8,
+
+	/* write region */
+	podulebus_wr_1,
+	podulebus_wr_2,
+	podulebus_wr_4,
+	podulebus_wr_8,
+
+	/* set multi */
+	/* XXX IMPLEMENT */
+
+	/* set region */
+	/* XXX IMPLEMENT */
+
+	/* copy */
+	/* XXX IMPLEMENT */
+
+	/* barrier */
+	podulebus_barrier
+};
+
+/* bus space functions */
+
+int
+podulebus_map(t, bpa, size, cacheable, bshp)
+	void *t;
+	bus_addr_t bpa;
+	bus_size_t size;
+	int cacheable;
+	bus_space_handle_t *bshp;
+{
+	/*
+	 * Temporary implementation as all I/O is already mapped etc.
+	 *
+	 * Eventually this function will do the mapping check for multiple maps
+	 */
+	*bshp = bpa;
+	return(0);
+	}
+
+int
+podulebus_alloc(t, rstart, rend, size, alignment, boundary, cacheable,
+    bpap, bshp)
+	void *t;
+	bus_addr_t rstart, rend;
+	bus_size_t size, alignment, boundary;
+	int cacheable;
+	bus_addr_t *bpap;
+	bus_space_handle_t *bshp;
+{
+	panic("podulebus_alloc(): Help!\n");
+}
+
+
+void
+podulebus_unmap(t, bsh, size)
+	void *t;
+	bus_space_handle_t bsh;
+	bus_size_t size;
+{
+	/*
+	 * Temporary implementation
+	 */
+}
+
+void    
+podulebus_free(t, bsh, size)
+	void *t;
+	bus_space_handle_t bsh;
+	bus_size_t size;
+{
+
+	panic("podulebus_free(): Help!\n");
+	/* podulebus_unmap() does all that we need to do. */
+/*	podulebus_unmap(t, bsh, size);*/
+}
+
+int
+podulebus_subregion(t, bsh, offset, size, nbshp)
+	void *t;
+	bus_space_handle_t bsh;
+	bus_size_t offset, size;
+	bus_space_handle_t *nbshp;
+{
+
+	*nbshp = bsh + offset;
+	return (0);
+}
+
+void
+podulebus_barrier(t, bsh, offset, len, flags)
+	void *t;
+	bus_space_handle_t bsh;
+	bus_size_t offset, len;
+	int flags;
+{
+}	
diff --git a/sys/arch/arm32/podulebus/podulebus_io_asm.S b/sys/arch/arm32/podulebus/podulebus_io_asm.S
new file mode 100644
index 000000000000..b7518c95cbb5
--- /dev/null
+++ b/sys/arch/arm32/podulebus/podulebus_io_asm.S
@@ -0,0 +1,259 @@
+/*	$NetBSD: podulebus_io_asm.S,v 1.1 1997/01/17 01:00:48 mark Exp $	*/
+
+/*
+ * Copyright (c) 1997 Mark Brinicombe.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Mark Brinicombe.
+ * 4. The name of the company nor the name of the author may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * bus_space I/O functions for podulebus
+ */
+
+sp	.req	r13
+lr	.req	r14
+pc	.req	r15
+
+	.text
+
+/*
+ * read single
+ */
+
+	.global	_podulebus_r_1
+_podulebus_r_1:
+	ldrb	r0, [r1, r2, lsl #2]
+	mov	pc, lr
+
+	.global	_podulebus_r_2
+_podulebus_r_2:
+	ldr	r0, [r1, r2, lsl #2]
+	bic	r0, r0, #0xff000000
+	bic	r0, r0, #0x00ff0000
+	mov	pc, lr
+
+	.global	_podulebus_r_4
+_podulebus_r_4:
+	ldr	r0, [r1, r2, lsl #2]
+	mov	pc, lr
+
+	.global	_podulebus_r_8
+_podulebus_r_8:
+	adr	r0, podulebus_r_8_text
+	b	_panic
+
+podulebus_r_8_text:
+	.asciz	"podulebus_r_8(%x,%x): Not implemented\n"
+	.align	0
+
+/*
+ * write single
+ */
+
+	.global	_podulebus_w_1
+_podulebus_w_1:
+	strb	r3, [r1, r2, lsl #2]
+	mov	pc, lr
+
+	.global	_podulebus_w_2
+_podulebus_w_2:
+	mov	r3, r3, lsl #16
+	orr	r3, r3, r3, lsr #16
+	str	r3, [r1, r2, lsl #2]
+	mov	pc, lr
+
+	.global	_podulebus_w_4
+_podulebus_w_4:
+	str	r3, [r1, r2, lsl #2]
+	mov	pc, lr
+
+	.global	_podulebus_w_8
+_podulebus_w_8:
+	adr	r0, podulebus_w_8_text
+	b	_panic
+
+podulebus_w_8_text:
+	.asciz	"podulebus_w_8(%x,%x): Not implemented\n"
+	.align	0
+
+/*
+ * read multiple
+ */
+
+	.global	_podulebus_rm_1
+_podulebus_rm_1:
+	adr	r0, podulebus_rm_1_text
+	b	_panic
+
+podulebus_rm_1_text:
+	.asciz	"podulebus_rm_1(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_rm_2
+_podulebus_rm_2:
+	add	r0, r1, r2, lsl #2
+	mov	r1, r3
+	ldr	r2, [sp, #0]
+	b	_insw
+
+	.global	_podulebus_rm_4
+_podulebus_rm_4:
+	adr	r0, podulebus_rm_4_text
+	b	_panic
+
+podulebus_rm_4_text:
+	.asciz	"podulebus_rm_4(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_rm_8
+_podulebus_rm_8:
+	adr	r0, podulebus_rm_8_text
+	b	_panic
+
+podulebus_rm_8_text:
+	.asciz	"podulebus_rm_8(%x,%x,%x): Not implemented\n"
+	.align	0
+
+/*
+ * write multiple
+ */
+
+	.global	_podulebus_wm_1
+_podulebus_wm_1:
+	adr	r0, podulebus_wm_1_text
+	b	_panic
+
+podulebus_wm_1_text:
+	.asciz	"podulebus_wm_1(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_wm_2
+_podulebus_wm_2:
+	add	r0, r1, r2, lsl #2
+	mov	r1, r3
+	ldr	r2, [sp, #0]
+	b	_outsw
+
+	.global	_podulebus_wm_4
+_podulebus_wm_4:
+	adr	r0, podulebus_wm_4_text
+	b	_panic
+
+podulebus_wm_4_text:
+	.asciz	"podulebus_wm_4(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_wm_8
+_podulebus_wm_8:
+	adr	r0, podulebus_wm_8_text
+	b	_panic
+
+podulebus_wm_8_text:
+	.asciz	"podulebus_wm_8(%x,%x,%x): Not implemented\n"
+	.align	0
+
+/*
+ * read region
+ */
+
+	.global	_podulebus_rr_1
+_podulebus_rr_1:
+	adr	r0, podulebus_rr_1_text
+	b	_panic
+
+podulebus_rr_1_text:
+	.asciz	"podulebus_rr_1(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_rr_2
+_podulebus_rr_2:
+	adr	r0, podulebus_rr_2_text
+	b	_panic
+
+podulebus_rr_2_text:
+	.asciz	"podulebus_rr_2(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_rr_4
+_podulebus_rr_4:
+	adr	r0, podulebus_rr_4_text
+	b	_panic
+
+podulebus_rr_4_text:
+	.asciz	"podulebus_rr_4(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_rr_8
+_podulebus_rr_8:
+	adr	r0, podulebus_rr_8_text
+	b	_panic
+
+podulebus_rr_8_text:
+	.asciz	"podulebus_rr_8(%x,%x,%x): Not implemented\n"
+	.align	0
+
+/*
+ * write region
+ */
+
+	.global	_podulebus_wr_1
+_podulebus_wr_1:
+	adr	r0, podulebus_wr_1_text
+	b	_panic
+
+podulebus_wr_1_text:
+	.asciz	"podulebus_wr_1(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_wr_2
+_podulebus_wr_2:
+	adr	r0, podulebus_wr_2_text
+	b	_panic
+
+podulebus_wr_2_text:
+	.asciz	"podulebus_wr_2(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_wr_4
+_podulebus_wr_4:
+	adr	r0, podulebus_wr_4_text
+	b	_panic
+
+podulebus_wr_4_text:
+	.asciz	"podulebus_wr_4(%x,%x,%x): Not implemented\n"
+	.align	0
+
+	.global	_podulebus_wr_8
+_podulebus_wr_8:
+	adr	r0, podulebus_wr_8_text
+	b	_panic
+
+podulebus_wr_8_text:
+	.asciz	"podulebus_wr_8(%x,%x,%x): Not implemented\n"
+	.align	0