1/*	$NetBSD: ixp425_pci_asm.S,v 1.2 2005/12/11 12:16:51 christos Exp $	*/
2
3/*
4 * Copyright (c) 2003 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *	This product includes software developed for the NetBSD Project by
20 *	Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 *    or promote products derived from this software without specific prior
23 *    written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 *
37 * $FreeBSD$
38 *
39 */
40
41#include <machine/asm.h>
42
43/*
44 * Bus space functions for IXP425 PCI space access.  We have to swizzle
45 * the address for 1 and 2 byte accesses when in big-endian mode.
46 */
47
48/*
49 * read single
50 */
51
52ENTRY(ixp425_pci_mem_bs_r_1)
53#ifdef __ARMEB__
54	add	r1, r1, r2
55	eor	r1, r1, #0x3
56	ldrb	r0, [r1]
57#else
58	ldrb	r0, [r1, r2]
59#endif /* __ARMEB__ */
60	mov	pc, lr
61
62ENTRY(ixp425_pci_mem_bs_r_2)
63#ifdef __ARMEB__
64	add	r1, r1, r2
65	eor	r1, r1, #0x2
66	ldrh	r0, [r1]
67#else
68	ldrh	r0, [r1, r2]
69#endif /* __ARMEB__ */
70	mov	pc, lr
71
72ENTRY(ixp425_pci_mem_bs_r_4)
73	ldr	r0, [r1, r2]
74	mov	pc, lr
75
76/*
77 * write single
78 */
79
80ENTRY(ixp425_pci_mem_bs_w_1)
81#ifdef __ARMEB__
82	add	r1, r1, r2
83	eor	r1, r1, #0x3
84	strb	r3, [r1]
85#else
86	strb	r3, [r1, r2]
87#endif /* __ARMEB__ */
88	mov	pc, lr
89
90ENTRY(ixp425_pci_mem_bs_w_2)
91#ifdef __ARMEB__
92	add	r1, r1, r2
93	eor	r1, r1, #0x2
94	strh	r3, [r1]
95#else
96	strh	r3, [r1, r2]
97#endif /* __ARMEB__ */
98	mov	pc, lr
99
100ENTRY(ixp425_pci_mem_bs_w_4)
101	str	r3, [r1, r2]
102	mov	pc, lr
103