1 /* $NetBSD: i80321_space.c,v 1.6 2003/10/06 15:43:35 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2001, 2002 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
38 /*
39 * bus_space functions for i80321 I/O Processor.
40 */
41
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD: stable/9/sys/arm/xscale/i80321/i80321_space.c 164824 2006-12-02 13:37:29Z cognet $");
44
45 #include <sys/param.h>
46 #include <sys/systm.h>
47 #include <sys/bus.h>
48
49 #include <machine/pcb.h>
50
51 #include <vm/vm.h>
52 #include <vm/vm_kern.h>
53 #include <vm/pmap.h>
54 #include <vm/vm_page.h>
55 #include <vm/vm_extern.h>
56
57 #include <machine/bus.h>
58
59 #include <arm/xscale/i80321/i80321reg.h>
60 #include <arm/xscale/i80321/i80321var.h>
61
62 /* Prototypes for all the bus_space structure functions */
63 bs_protos(i80321);
64 bs_protos(i80321_io);
65 bs_protos(i80321_mem);
66 bs_protos(generic);
67 bs_protos(generic_armv4);
68
69 /*
70 * Template bus_space -- copied, and the bits that are NULL are
71 * filled in.
72 */
73 const struct bus_space i80321_bs_tag_template = {
74 /* cookie */
75 (void *) 0,
76
77 /* mapping/unmapping */
78 NULL,
79 NULL,
80 i80321_bs_subregion,
81
82 /* allocation/deallocation */
83 NULL,
84 NULL,
85
86 /* barrier */
87 i80321_bs_barrier,
88
89 /* read (single) */
90 generic_bs_r_1,
91 generic_armv4_bs_r_2,
92 generic_bs_r_4,
93 NULL,
94
95 /* read multiple */
96 generic_bs_rm_1,
97 generic_armv4_bs_rm_2,
98 generic_bs_rm_4,
99 NULL,
100
101 /* read region */
102 generic_bs_rr_1,
103 generic_armv4_bs_rr_2,
104 generic_bs_rr_4,
105 NULL,
106
107 /* write (single) */
108 generic_bs_w_1,
109 generic_armv4_bs_w_2,
110 generic_bs_w_4,
111 NULL,
112
113 /* write multiple */
114 generic_bs_wm_1,
115 generic_armv4_bs_wm_2,
116 generic_bs_wm_4,
117 NULL,
118
119 /* write region */
120 NULL,
121 generic_armv4_bs_wr_2,
122 generic_bs_wr_4,
123 NULL,
124
125 /* set multiple */
126 NULL,
127 NULL,
128 NULL,
129 NULL,
130
131 /* set region */
132 NULL,
133 generic_armv4_bs_sr_2,
134 generic_bs_sr_4,
135 NULL,
136
137 /* copy */
138 NULL,
139 generic_armv4_bs_c_2,
140 NULL,
141 NULL,
142
143 /* read (single) stream */
144 generic_bs_r_1,
145 generic_armv4_bs_r_2,
146 generic_bs_r_4,
147 NULL,
148
149 /* read multiple stream */
150 generic_bs_rm_1,
151 generic_armv4_bs_rm_2,
152 generic_bs_rm_4,
153 NULL,
154
155 /* read region stream */
156 generic_bs_rr_1,
157 generic_armv4_bs_rr_2,
158 generic_bs_rr_4,
159 NULL,
160
161 /* write (single) stream */
162 generic_bs_w_1,
163 generic_armv4_bs_w_2,
164 generic_bs_w_4,
165 NULL,
166
167 /* write multiple stream */
168 generic_bs_wm_1,
169 generic_armv4_bs_wm_2,
170 generic_bs_wm_4,
171 NULL,
172
173 /* write region stream */
174 NULL,
175 generic_armv4_bs_wr_2,
176 generic_bs_wr_4,
177 NULL,
178 };
179
180 void
i80321_bs_init(bus_space_tag_t bs,void * cookie)181 i80321_bs_init(bus_space_tag_t bs, void *cookie)
182 {
183
184 *bs = i80321_bs_tag_template;
185 bs->bs_cookie = cookie;
186 }
187
188 void
i80321_io_bs_init(bus_space_tag_t bs,void * cookie)189 i80321_io_bs_init(bus_space_tag_t bs, void *cookie)
190 {
191
192 *bs = i80321_bs_tag_template;
193 bs->bs_cookie = cookie;
194
195 bs->bs_map = i80321_io_bs_map;
196 bs->bs_unmap = i80321_io_bs_unmap;
197 bs->bs_alloc = i80321_io_bs_alloc;
198 bs->bs_free = i80321_io_bs_free;
199
200 }
201
202 void
i80321_mem_bs_init(bus_space_tag_t bs,void * cookie)203 i80321_mem_bs_init(bus_space_tag_t bs, void *cookie)
204 {
205
206 *bs = i80321_bs_tag_template;
207 bs->bs_cookie = cookie;
208
209 bs->bs_map = i80321_mem_bs_map;
210 bs->bs_unmap = i80321_mem_bs_unmap;
211 bs->bs_alloc = i80321_mem_bs_alloc;
212 bs->bs_free = i80321_mem_bs_free;
213
214 }
215
216 /* *** Routines shared by i80321, PCI IO, and PCI MEM. *** */
217
218 int
i80321_bs_subregion(void * t,bus_space_handle_t bsh,bus_size_t offset,bus_size_t size,bus_space_handle_t * nbshp)219 i80321_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset,
220 bus_size_t size, bus_space_handle_t *nbshp)
221 {
222
223 *nbshp = bsh + offset;
224 return (0);
225 }
226
227 void
i80321_bs_barrier(void * t,bus_space_handle_t bsh,bus_size_t offset,bus_size_t len,int flags)228 i80321_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset,
229 bus_size_t len, int flags)
230 {
231
232 /* Nothing to do. */
233 }
234
235 /* *** Routines for PCI IO. *** */
236
237 extern struct i80321_softc *i80321_softc;
238 int
i80321_io_bs_map(void * t,bus_addr_t bpa,bus_size_t size,int flags,bus_space_handle_t * bshp)239 i80321_io_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags,
240 bus_space_handle_t *bshp)
241 {
242 struct i80321_softc *sc = i80321_softc;
243 vm_offset_t winvaddr;
244 uint32_t busbase;
245
246 if (bpa >= sc->sc_ioout_xlate &&
247 bpa < (sc->sc_ioout_xlate + VERDE_OUT_XLATE_IO_WIN_SIZE)) {
248 busbase = sc->sc_ioout_xlate;
249 winvaddr = sc->sc_iow_vaddr;
250 } else
251 return (EINVAL);
252
253 if ((bpa + size) >= (busbase + VERDE_OUT_XLATE_IO_WIN_SIZE))
254 return (EINVAL);
255
256 /*
257 * Found the window -- PCI I/O space is mapped at a fixed
258 * virtual address by board-specific code. Translate the
259 * bus address to the virtual address.
260 */
261 *bshp = winvaddr + (bpa - busbase);
262
263 return (0);
264 }
265
266 void
i80321_io_bs_unmap(void * t,bus_space_handle_t h,bus_size_t size)267 i80321_io_bs_unmap(void *t, bus_space_handle_t h, bus_size_t size)
268 {
269
270 /* Nothing to do. */
271 }
272
273 int
i80321_io_bs_alloc(void * t,bus_addr_t rstart,bus_addr_t rend,bus_size_t size,bus_size_t alignment,bus_size_t boundary,int flags,bus_addr_t * bpap,bus_space_handle_t * bshp)274 i80321_io_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend,
275 bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags,
276 bus_addr_t *bpap, bus_space_handle_t *bshp)
277 {
278
279 panic("i80321_io_bs_alloc(): not implemented");
280 }
281
282 void
i80321_io_bs_free(void * t,bus_space_handle_t bsh,bus_size_t size)283 i80321_io_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size)
284 {
285
286 panic("i80321_io_bs_free(): not implemented");
287 }
288
289
290 /* *** Routines for PCI MEM. *** */
291 extern int badaddr_read(void *, int, void *);
292 int
i80321_mem_bs_map(void * t,bus_addr_t bpa,bus_size_t size,int flags,bus_space_handle_t * bshp)293 i80321_mem_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags,
294 bus_space_handle_t *bshp)
295 {
296 vm_paddr_t pa, endpa;
297
298 pa = trunc_page(bpa);
299 endpa = round_page(bpa + size);
300
301 *bshp = (vm_offset_t)pmap_mapdev(pa, endpa - pa);
302
303 return (0);
304 }
305
306 void
i80321_mem_bs_unmap(void * t,bus_space_handle_t h,bus_size_t size)307 i80321_mem_bs_unmap(void *t, bus_space_handle_t h, bus_size_t size)
308 {
309 vm_offset_t va, endva;
310
311 va = trunc_page((vm_offset_t)t);
312 endva = va + round_page(size);
313
314 /* Free the kernel virtual mapping. */
315 kmem_free(kernel_map, va, endva - va);
316 }
317
318 int
i80321_mem_bs_alloc(void * t,bus_addr_t rstart,bus_addr_t rend,bus_size_t size,bus_size_t alignment,bus_size_t boundary,int flags,bus_addr_t * bpap,bus_space_handle_t * bshp)319 i80321_mem_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend,
320 bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags,
321 bus_addr_t *bpap, bus_space_handle_t *bshp)
322 {
323
324 panic("i80321_mem_bs_alloc(): not implemented");
325 }
326
327 void
i80321_mem_bs_free(void * t,bus_space_handle_t bsh,bus_size_t size)328 i80321_mem_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size)
329 {
330
331 panic("i80321_mem_bs_free(): not implemented");
332 }
333