1 /* $NetBSD: obio_space.c,v 1.6 2003/07/15 00:25:05 lukem Exp $ */
4 * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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
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.
39 * bus_space functions for PXA devices
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD$");
45 #include <sys/param.h>
46 #include <sys/systm.h>
48 #include <sys/kernel.h>
49 #include <sys/malloc.h>
51 #include <machine/bus.h>
53 #include <arm/xscale/pxa/pxareg.h>
54 #include <arm/xscale/pxa/pxavar.h>
56 static MALLOC_DEFINE(M_PXATAG, "PXA bus_space tags", "Bus_space tags for PXA");
58 /* Prototypes for all the bus_space structure functions */
60 bs_protos(generic_armv4);
64 * The obio bus space tag. This is constant for all instances, so
65 * we never have to explicitly "create" it.
67 struct bus_space _base_tag = {
71 /* mapping/unmapping */
76 /* allocation/deallocation */
138 static struct bus_space _obio_tag;
140 bus_space_tag_t base_tag = &_base_tag;
141 bus_space_tag_t obio_tag = NULL;
147 bcopy(&_base_tag, &_obio_tag, sizeof(struct bus_space));
148 _obio_tag.bs_cookie = (void *)PXA2X0_PERIPH_OFFSET;
149 obio_tag = &_obio_tag;
153 pxa_bus_tag_alloc(bus_addr_t offset)
155 struct bus_space *tag;
157 tag = (struct bus_space *)malloc(sizeof(struct bus_space), M_PXATAG,
163 bcopy(&_base_tag, tag, sizeof(struct bus_space));
164 tag->bs_cookie = (void *)offset;
166 return ((bus_space_tag_t)tag);
170 #define READ_SINGLE(type, proto, base) \
172 proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset) \
174 bus_addr_t tag_offset; \
176 tag_offset = (bus_addr_t)cookie; \
177 value = base(NULL, bsh + tag_offset, offset); \
181 READ_SINGLE(u_int8_t, pxa_bs_r_1, generic_bs_r_1)
182 READ_SINGLE(u_int16_t, pxa_bs_r_2, generic_armv4_bs_r_2)
183 READ_SINGLE(u_int32_t, pxa_bs_r_4, generic_bs_r_4)
187 #define WRITE_SINGLE(type, proto, base) \
189 proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset, \
192 bus_addr_t tag_offset; \
193 tag_offset = (bus_addr_t)cookie; \
194 base(NULL, bsh + tag_offset, offset, value); \
197 WRITE_SINGLE(u_int8_t, pxa_bs_w_1, generic_bs_w_1)
198 WRITE_SINGLE(u_int16_t, pxa_bs_w_2, generic_armv4_bs_w_2)
199 WRITE_SINGLE(u_int32_t, pxa_bs_w_4, generic_bs_w_4)
203 #define READ_MULTI(type, proto, base) \
205 proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset, \
206 type *dest, bus_size_t count) \
208 bus_addr_t tag_offset; \
209 tag_offset = (bus_addr_t)cookie; \
210 base(NULL, bsh + tag_offset, offset, dest, count); \
213 READ_MULTI(u_int8_t, pxa_bs_rm_1, generic_bs_rm_1)
214 READ_MULTI(u_int16_t, pxa_bs_rm_2, generic_armv4_bs_rm_2)
216 READ_MULTI(u_int8_t, pxa_bs_rr_1, generic_bs_rr_1)
220 #define WRITE_MULTI(type, proto, base) \
222 proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset, \
223 const type *src, bus_size_t count) \
225 bus_addr_t tag_offset; \
226 tag_offset = (bus_addr_t)cookie; \
227 base(NULL, bsh + tag_offset, offset, src, count); \
230 WRITE_MULTI(u_int8_t, pxa_bs_wm_1, generic_bs_wm_1)
231 WRITE_MULTI(u_int16_t, pxa_bs_wm_2, generic_armv4_bs_wm_2)