1 /* $NetBSD: podulebus_io_asm.S,v 1.9 1999/10/26 06:53:44 cgd Exp $ */
4 * Copyright (c) 1997 Mark Brinicombe.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Mark Brinicombe.
18 * 4. The name of the company nor the name of the author may be used to
19 * endorse or promote products derived from this software without specific
20 * prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <machine/asm.h>
38 * bus_space I/O functions for podulebus
45 ENTRY(podulebus_bs_r_1)
50 ENTRY(podulebus_bs_r_2)
53 bic r0, r0, #0xff000000
54 bic r0, r0, #0x00ff0000
57 ENTRY(podulebus_bs_r_4)
66 ENTRY(podulebus_bs_w_1)
71 ENTRY(podulebus_bs_w_2)
73 orr r3, r3, r3, lsr #16
78 ENTRY(podulebus_bs_w_4)
87 ENTRY(podulebus_bs_rm_1)
88 add r0, r1, r2, lsl r0
91 /* Make sure that we have a positive length */
97 strb r1, [r3], #0x0001
98 subs r2, r2, #0x00000001
99 bgt podulebus_rm_1_loop
103 ENTRY(podulebus_bs_rm_2)
104 add r0, r1, r2, lsl r0
113 ENTRY(podulebus_bs_wm_1)
114 add r0, r1, r2, lsl r0
117 /* Make sure that we have a positive length */
122 ldrb r1, [r3], #0x0001
124 subs r2, r2, #0x00000001
125 bgt podulebus_wm_1_loop
129 ENTRY(podulebus_bs_wm_2)
130 add r0, r1, r2, lsl r0