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 */
63 * The obio bus space tag. This is constant for all instances, so
64 * we never have to explicitly "create" it.
66 struct bus_space _base_tag = {
70 /* mapping/unmapping */
71 .bs_map = generic_bs_map,
72 .bs_unmap = generic_bs_unmap,
73 .bs_subregion = generic_bs_subregion,
75 /* allocation/deallocation */
76 .bs_alloc = generic_bs_alloc,
77 .bs_free = generic_bs_free,
80 .bs_barrier = generic_bs_barrier,
86 .bs_r_8 = BS_UNIMPLEMENTED,
89 .bs_rm_1 = pxa_bs_rm_1,
90 .bs_rm_2 = pxa_bs_rm_2,
91 .bs_rm_4 = BS_UNIMPLEMENTED,
92 .bs_rm_8 = BS_UNIMPLEMENTED,
95 .bs_rr_1 = pxa_bs_rr_1,
96 .bs_rr_2 = BS_UNIMPLEMENTED,
97 .bs_rr_4 = BS_UNIMPLEMENTED,
98 .bs_rr_8 = BS_UNIMPLEMENTED,
101 .bs_w_1 = pxa_bs_w_1,
102 .bs_w_2 = pxa_bs_w_2,
103 .bs_w_4 = pxa_bs_w_4,
104 .bs_w_8 = BS_UNIMPLEMENTED,
107 .bs_wm_1 = pxa_bs_wm_1,
108 .bs_wm_2 = pxa_bs_wm_2,
109 .bs_wm_4 = BS_UNIMPLEMENTED,
110 .bs_wm_8 = BS_UNIMPLEMENTED,
113 .bs_wr_1 = BS_UNIMPLEMENTED,
114 .bs_wr_2 = BS_UNIMPLEMENTED,
115 .bs_wr_4 = BS_UNIMPLEMENTED,
116 .bs_wr_8 = BS_UNIMPLEMENTED,
119 .bs_sm_1 = BS_UNIMPLEMENTED,
120 .bs_sm_2 = BS_UNIMPLEMENTED,
121 .bs_sm_4 = BS_UNIMPLEMENTED,
122 .bs_sm_8 = BS_UNIMPLEMENTED,
125 .bs_sr_1 = BS_UNIMPLEMENTED,
126 .bs_sr_2 = BS_UNIMPLEMENTED,
127 .bs_sr_4 = BS_UNIMPLEMENTED,
128 .bs_sr_8 = BS_UNIMPLEMENTED,
131 .bs_c_1 = BS_UNIMPLEMENTED,
132 .bs_c_2 = BS_UNIMPLEMENTED,
133 .bs_c_4 = BS_UNIMPLEMENTED,
134 .bs_c_8 = BS_UNIMPLEMENTED,
136 /* read stream (single) */
137 .bs_r_1_s = BS_UNIMPLEMENTED,
138 .bs_r_2_s = BS_UNIMPLEMENTED,
139 .bs_r_4_s = BS_UNIMPLEMENTED,
140 .bs_r_8_s = BS_UNIMPLEMENTED,
142 /* read multiple stream */
143 .bs_rm_1_s = BS_UNIMPLEMENTED,
144 .bs_rm_2_s = BS_UNIMPLEMENTED,
145 .bs_rm_4_s = BS_UNIMPLEMENTED,
146 .bs_rm_8_s = BS_UNIMPLEMENTED,
148 /* read region stream */
149 .bs_rr_1_s = BS_UNIMPLEMENTED,
150 .bs_rr_2_s = BS_UNIMPLEMENTED,
151 .bs_rr_4_s = BS_UNIMPLEMENTED,
152 .bs_rr_8_s = BS_UNIMPLEMENTED,
154 /* write stream (single) */
155 .bs_w_1_s = BS_UNIMPLEMENTED,
156 .bs_w_2_s = BS_UNIMPLEMENTED,
157 .bs_w_4_s = BS_UNIMPLEMENTED,
158 .bs_w_8_s = BS_UNIMPLEMENTED,
160 /* write multiple stream */
161 .bs_wm_1_s = BS_UNIMPLEMENTED,
162 .bs_wm_2_s = BS_UNIMPLEMENTED,
163 .bs_wm_4_s = BS_UNIMPLEMENTED,
164 .bs_wm_8_s = BS_UNIMPLEMENTED,
166 /* write region stream */
167 .bs_wr_1_s = BS_UNIMPLEMENTED,
168 .bs_wr_2_s = BS_UNIMPLEMENTED,
169 .bs_wr_4_s = BS_UNIMPLEMENTED,
170 .bs_wr_8_s = BS_UNIMPLEMENTED,
173 static struct bus_space _obio_tag;
175 bus_space_tag_t base_tag = &_base_tag;
176 bus_space_tag_t obio_tag = NULL;
182 bcopy(&_base_tag, &_obio_tag, sizeof(struct bus_space));
183 _obio_tag.bs_privdata = (void *)PXA2X0_PERIPH_OFFSET;
184 obio_tag = &_obio_tag;
188 pxa_bus_tag_alloc(bus_addr_t offset)
190 struct bus_space *tag;
192 tag = (struct bus_space *)malloc(sizeof(struct bus_space), M_PXATAG,
195 bcopy(&_base_tag, tag, sizeof(struct bus_space));
196 tag->bs_privdata = (void *)offset;
198 return ((bus_space_tag_t)tag);
202 #define READ_SINGLE(type, proto, base) \
204 proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset) \
206 bus_addr_t tag_offset; \
208 tag_offset = (bus_addr_t)tag->bs_privdata; \
209 value = base(NULL, bsh + tag_offset, offset); \
213 READ_SINGLE(u_int8_t, pxa_bs_r_1, generic_bs_r_1)
214 READ_SINGLE(u_int16_t, pxa_bs_r_2, generic_bs_r_2)
215 READ_SINGLE(u_int32_t, pxa_bs_r_4, generic_bs_r_4)
219 #define WRITE_SINGLE(type, proto, base) \
221 proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, \
224 bus_addr_t tag_offset; \
225 tag_offset = (bus_addr_t)tag->bs_privdata; \
226 base(NULL, bsh + tag_offset, offset, value); \
229 WRITE_SINGLE(u_int8_t, pxa_bs_w_1, generic_bs_w_1)
230 WRITE_SINGLE(u_int16_t, pxa_bs_w_2, generic_bs_w_2)
231 WRITE_SINGLE(u_int32_t, pxa_bs_w_4, generic_bs_w_4)
235 #define READ_MULTI(type, proto, base) \
237 proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, \
238 type *dest, bus_size_t count) \
240 bus_addr_t tag_offset; \
241 tag_offset = (bus_addr_t)tag->bs_privdata; \
242 base(NULL, bsh + tag_offset, offset, dest, count); \
245 READ_MULTI(u_int8_t, pxa_bs_rm_1, generic_bs_rm_1)
246 READ_MULTI(u_int16_t, pxa_bs_rm_2, generic_bs_rm_2)
248 READ_MULTI(u_int8_t, pxa_bs_rr_1, generic_bs_rr_1)
252 #define WRITE_MULTI(type, proto, base) \
254 proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, \
255 const type *src, bus_size_t count) \
257 bus_addr_t tag_offset; \
258 tag_offset = (bus_addr_t)tag->bs_privdata; \
259 base(NULL, bsh + tag_offset, offset, src, count); \
262 WRITE_MULTI(u_int8_t, pxa_bs_wm_1, generic_bs_wm_1)
263 WRITE_MULTI(u_int16_t, pxa_bs_wm_2, generic_bs_wm_2)