am79c930.c revision 1.3 1 1.3 sommerfe /* $NetBSD: am79c930.c,v 1.3 2000/02/17 17:37:23 sommerfeld Exp $ */
2 1.2 sommerfe
3 1.1 sommerfe /*-
4 1.1 sommerfe * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 1.1 sommerfe * All rights reserved.
6 1.1 sommerfe *
7 1.1 sommerfe * This code is derived from software contributed to The NetBSD Foundation
8 1.1 sommerfe * by Bill Sommerfeld
9 1.1 sommerfe *
10 1.1 sommerfe * Redistribution and use in source and binary forms, with or without
11 1.1 sommerfe * modification, are permitted provided that the following conditions
12 1.1 sommerfe * are met:
13 1.1 sommerfe * 1. Redistributions of source code must retain the above copyright
14 1.1 sommerfe * notice, this list of conditions and the following disclaimer.
15 1.1 sommerfe * 2. Redistributions in binary form must reproduce the above copyright
16 1.1 sommerfe * notice, this list of conditions and the following disclaimer in the
17 1.1 sommerfe * documentation and/or other materials provided with the distribution.
18 1.1 sommerfe * 3. All advertising materials mentioning features or use of this software
19 1.1 sommerfe * must display the following acknowledgement:
20 1.1 sommerfe * This product includes software developed by the NetBSD
21 1.1 sommerfe * Foundation, Inc. and its contributors.
22 1.1 sommerfe * 4. Neither the name of The NetBSD Foundation nor the names of its
23 1.1 sommerfe * contributors may be used to endorse or promote products derived
24 1.1 sommerfe * from this software without specific prior written permission.
25 1.1 sommerfe *
26 1.1 sommerfe * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 1.1 sommerfe * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 1.1 sommerfe * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 1.1 sommerfe * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 1.1 sommerfe * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 1.1 sommerfe * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 1.1 sommerfe * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 1.1 sommerfe * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 1.1 sommerfe * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 1.1 sommerfe * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 1.1 sommerfe * POSSIBILITY OF SUCH DAMAGE.
37 1.1 sommerfe */
38 1.1 sommerfe
39 1.1 sommerfe /*
40 1.1 sommerfe * Am79c930 chip driver.
41 1.1 sommerfe *
42 1.1 sommerfe * This is used by the awi driver to use the shared
43 1.1 sommerfe * memory attached to the 79c930 to communicate with the firmware running
44 1.1 sommerfe * in the 930's on-board 80188 core.
45 1.1 sommerfe *
46 1.1 sommerfe * The 79c930 can be mapped into just I/O space, or also have a
47 1.1 sommerfe * memory mapping; the mapping must be set up by the bus front-end
48 1.1 sommerfe * before am79c930_init is called.
49 1.1 sommerfe */
50 1.1 sommerfe
51 1.1 sommerfe /*
52 1.1 sommerfe * operations:
53 1.1 sommerfe *
54 1.1 sommerfe * read_8, read_16, read_32, read_64, read_bytes
55 1.1 sommerfe * write_8, write_16, write_32, write_64, write_bytes
56 1.1 sommerfe * (two versions, depending on whether memory-space or i/o space is in use).
57 1.1 sommerfe *
58 1.1 sommerfe * interrupt E.C.
59 1.1 sommerfe * start isr
60 1.1 sommerfe * end isr
61 1.1 sommerfe */
62 1.1 sommerfe
63 1.1 sommerfe #include <sys/param.h>
64 1.1 sommerfe #include <sys/systm.h>
65 1.1 sommerfe #include <sys/kernel.h>
66 1.1 sommerfe #include <sys/device.h>
67 1.1 sommerfe
68 1.1 sommerfe #include <machine/cpu.h>
69 1.1 sommerfe #include <machine/bus.h>
70 1.1 sommerfe #include <machine/intr.h>
71 1.1 sommerfe
72 1.1 sommerfe #include <dev/ic/am79c930reg.h>
73 1.1 sommerfe #include <dev/ic/am79c930var.h>
74 1.1 sommerfe
75 1.1 sommerfe #define AM930_DELAY(x) /*nothing*/;
76 1.1 sommerfe
77 1.1 sommerfe void am79c930_regdump __P((struct am79c930_softc *sc));
78 1.1 sommerfe
79 1.1 sommerfe static void io_write_1 __P((struct am79c930_softc *, u_int32_t, u_int8_t));
80 1.1 sommerfe static void io_write_2 __P((struct am79c930_softc *, u_int32_t, u_int16_t));
81 1.1 sommerfe static void io_write_4 __P((struct am79c930_softc *, u_int32_t, u_int32_t));
82 1.1 sommerfe static void io_write_bytes __P((struct am79c930_softc *, u_int32_t, u_int8_t *, size_t));
83 1.1 sommerfe
84 1.1 sommerfe static u_int8_t io_read_1 __P((struct am79c930_softc *, u_int32_t));
85 1.1 sommerfe static u_int16_t io_read_2 __P((struct am79c930_softc *, u_int32_t));
86 1.1 sommerfe static u_int32_t io_read_4 __P((struct am79c930_softc *, u_int32_t));
87 1.1 sommerfe static void io_read_bytes __P((struct am79c930_softc *, u_int32_t, u_int8_t *, size_t));
88 1.1 sommerfe
89 1.1 sommerfe static void mem_write_1 __P((struct am79c930_softc *, u_int32_t, u_int8_t));
90 1.1 sommerfe static void mem_write_2 __P((struct am79c930_softc *, u_int32_t, u_int16_t));
91 1.1 sommerfe static void mem_write_4 __P((struct am79c930_softc *, u_int32_t, u_int32_t));
92 1.1 sommerfe static void mem_write_bytes __P((struct am79c930_softc *, u_int32_t, u_int8_t *, size_t));
93 1.1 sommerfe
94 1.1 sommerfe static u_int8_t mem_read_1 __P((struct am79c930_softc *, u_int32_t));
95 1.1 sommerfe static u_int16_t mem_read_2 __P((struct am79c930_softc *, u_int32_t));
96 1.1 sommerfe static u_int32_t mem_read_4 __P((struct am79c930_softc *, u_int32_t));
97 1.1 sommerfe static void mem_read_bytes __P((struct am79c930_softc *, u_int32_t, u_int8_t *, size_t));
98 1.1 sommerfe
99 1.1 sommerfe static struct am79c930_ops iospace_ops = {
100 1.1 sommerfe io_write_1,
101 1.1 sommerfe io_write_2,
102 1.1 sommerfe io_write_4,
103 1.1 sommerfe io_write_bytes,
104 1.1 sommerfe io_read_1,
105 1.1 sommerfe io_read_2,
106 1.1 sommerfe io_read_4,
107 1.1 sommerfe io_read_bytes
108 1.1 sommerfe };
109 1.1 sommerfe
110 1.1 sommerfe struct am79c930_ops memspace_ops = {
111 1.1 sommerfe mem_write_1,
112 1.1 sommerfe mem_write_2,
113 1.1 sommerfe mem_write_4,
114 1.1 sommerfe mem_write_bytes,
115 1.1 sommerfe mem_read_1,
116 1.1 sommerfe mem_read_2,
117 1.1 sommerfe mem_read_4,
118 1.1 sommerfe mem_read_bytes
119 1.1 sommerfe };
120 1.1 sommerfe
121 1.1 sommerfe static void io_write_1 (sc, off, val)
122 1.1 sommerfe struct am79c930_softc *sc;
123 1.1 sommerfe u_int32_t off;
124 1.1 sommerfe u_int8_t val;
125 1.1 sommerfe {
126 1.1 sommerfe AM930_DELAY(1);
127 1.1 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_HI,
128 1.1 sommerfe ((off>>8)& 0x7f));
129 1.1 sommerfe AM930_DELAY(1);
130 1.1 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_LO, (off&0xff));
131 1.1 sommerfe AM930_DELAY(1);
132 1.1 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_IODPA, val);
133 1.1 sommerfe AM930_DELAY(1);
134 1.1 sommerfe }
135 1.1 sommerfe
136 1.1 sommerfe static void io_write_2 (sc, off, val)
137 1.1 sommerfe struct am79c930_softc *sc;
138 1.1 sommerfe u_int32_t off;
139 1.1 sommerfe u_int16_t val;
140 1.1 sommerfe {
141 1.3 sommerfe AM930_DELAY(1);
142 1.3 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_HI,
143 1.3 sommerfe ((off>>8)& 0x7f));
144 1.3 sommerfe AM930_DELAY(1);
145 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_LMA_LO, (off&0xff));
146 1.3 sommerfe AM930_DELAY(1);
147 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_IODPA, val & 0xff);
148 1.3 sommerfe AM930_DELAY(1);
149 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_IODPA, (val>>8)&0xff);
150 1.3 sommerfe AM930_DELAY(1);
151 1.1 sommerfe }
152 1.1 sommerfe
153 1.1 sommerfe static void io_write_4 (sc, off, val)
154 1.1 sommerfe struct am79c930_softc *sc;
155 1.1 sommerfe u_int32_t off;
156 1.1 sommerfe u_int32_t val;
157 1.1 sommerfe {
158 1.3 sommerfe AM930_DELAY(1);
159 1.3 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_HI,
160 1.3 sommerfe ((off>>8)& 0x7f));
161 1.3 sommerfe AM930_DELAY(1);
162 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_LMA_LO, (off&0xff));
163 1.3 sommerfe AM930_DELAY(1);
164 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_IODPA,val & 0xff);
165 1.3 sommerfe AM930_DELAY(1);
166 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_IODPA,(val>>8)&0xff);
167 1.3 sommerfe AM930_DELAY(1);
168 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_IODPA,(val>>16)&0xff);
169 1.3 sommerfe AM930_DELAY(1);
170 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_IODPA,(val>>24)&0xff);
171 1.3 sommerfe AM930_DELAY(1);
172 1.1 sommerfe }
173 1.1 sommerfe
174 1.1 sommerfe static void io_write_bytes (sc, off, ptr, len)
175 1.1 sommerfe struct am79c930_softc *sc;
176 1.1 sommerfe u_int32_t off;
177 1.1 sommerfe u_int8_t *ptr;
178 1.1 sommerfe size_t len;
179 1.1 sommerfe {
180 1.1 sommerfe int i;
181 1.3 sommerfe
182 1.3 sommerfe AM930_DELAY(1);
183 1.3 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_HI,
184 1.3 sommerfe ((off>>8)& 0x7f));
185 1.3 sommerfe AM930_DELAY(1);
186 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_LMA_LO, (off&0xff));
187 1.3 sommerfe AM930_DELAY(1);
188 1.1 sommerfe for (i=0; i<len; i++)
189 1.3 sommerfe bus_space_write_1(sc->sc_iot,sc->sc_ioh,AM79C930_IODPA,ptr[i]);
190 1.1 sommerfe }
191 1.1 sommerfe
192 1.1 sommerfe static u_int8_t io_read_1 (sc, off)
193 1.1 sommerfe struct am79c930_softc *sc;
194 1.1 sommerfe u_int32_t off;
195 1.1 sommerfe {
196 1.1 sommerfe u_int8_t val;
197 1.1 sommerfe
198 1.1 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_HI,
199 1.1 sommerfe ((off>>8)& 0x7f));
200 1.1 sommerfe AM930_DELAY(1);
201 1.1 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_LO, (off&0xff));
202 1.1 sommerfe AM930_DELAY(1);
203 1.1 sommerfe val = bus_space_read_1(sc->sc_iot, sc->sc_ioh, AM79C930_IODPA);
204 1.1 sommerfe AM930_DELAY(1);
205 1.1 sommerfe return val;
206 1.1 sommerfe }
207 1.1 sommerfe
208 1.1 sommerfe static u_int16_t io_read_2 (sc, off)
209 1.1 sommerfe struct am79c930_softc *sc;
210 1.1 sommerfe u_int32_t off;
211 1.1 sommerfe {
212 1.3 sommerfe u_int16_t val;
213 1.3 sommerfe
214 1.3 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_HI,
215 1.3 sommerfe ((off>>8)& 0x7f));
216 1.3 sommerfe AM930_DELAY(1);
217 1.3 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_LO, (off&0xff));
218 1.3 sommerfe AM930_DELAY(1);
219 1.3 sommerfe val = bus_space_read_1(sc->sc_iot, sc->sc_ioh, AM79C930_IODPA);
220 1.3 sommerfe AM930_DELAY(1);
221 1.3 sommerfe val |= bus_space_read_1(sc->sc_iot, sc->sc_ioh, AM79C930_IODPA) << 8;
222 1.3 sommerfe AM930_DELAY(1);
223 1.3 sommerfe return val;
224 1.1 sommerfe }
225 1.1 sommerfe
226 1.1 sommerfe static u_int32_t io_read_4 (sc, off)
227 1.1 sommerfe struct am79c930_softc *sc;
228 1.1 sommerfe u_int32_t off;
229 1.1 sommerfe {
230 1.3 sommerfe u_int32_t val;
231 1.3 sommerfe
232 1.3 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_HI,
233 1.3 sommerfe ((off>>8)& 0x7f));
234 1.3 sommerfe AM930_DELAY(1);
235 1.3 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_LO, (off&0xff));
236 1.3 sommerfe AM930_DELAY(1);
237 1.3 sommerfe val = bus_space_read_1(sc->sc_iot, sc->sc_ioh, AM79C930_IODPA);
238 1.3 sommerfe AM930_DELAY(1);
239 1.3 sommerfe val |= bus_space_read_1(sc->sc_iot, sc->sc_ioh, AM79C930_IODPA) << 8;
240 1.3 sommerfe AM930_DELAY(1);
241 1.3 sommerfe val |= bus_space_read_1(sc->sc_iot, sc->sc_ioh, AM79C930_IODPA) << 16;
242 1.3 sommerfe AM930_DELAY(1);
243 1.3 sommerfe val |= bus_space_read_1(sc->sc_iot, sc->sc_ioh, AM79C930_IODPA) << 24;
244 1.3 sommerfe AM930_DELAY(1);
245 1.3 sommerfe return val;
246 1.1 sommerfe }
247 1.1 sommerfe
248 1.1 sommerfe static void io_read_bytes (sc, off, ptr, len)
249 1.1 sommerfe struct am79c930_softc *sc;
250 1.1 sommerfe u_int32_t off;
251 1.1 sommerfe u_int8_t *ptr;
252 1.1 sommerfe size_t len;
253 1.1 sommerfe {
254 1.1 sommerfe int i;
255 1.1 sommerfe
256 1.3 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_HI,
257 1.3 sommerfe ((off>>8)& 0x7f));
258 1.3 sommerfe AM930_DELAY(1);
259 1.3 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_LMA_LO, (off&0xff));
260 1.3 sommerfe AM930_DELAY(1);
261 1.1 sommerfe for (i=0; i<len; i++)
262 1.3 sommerfe ptr[i] = bus_space_read_1(sc->sc_iot, sc->sc_ioh,
263 1.3 sommerfe AM79C930_IODPA);
264 1.1 sommerfe }
265 1.1 sommerfe
266 1.1 sommerfe static void mem_write_1 (sc, off, val)
267 1.1 sommerfe struct am79c930_softc *sc;
268 1.1 sommerfe u_int32_t off;
269 1.1 sommerfe u_int8_t val;
270 1.1 sommerfe {
271 1.1 sommerfe bus_space_write_1(sc->sc_memt, sc->sc_memh, off, val);
272 1.1 sommerfe }
273 1.1 sommerfe
274 1.1 sommerfe static void mem_write_2 (sc, off, val)
275 1.1 sommerfe struct am79c930_softc *sc;
276 1.1 sommerfe u_int32_t off;
277 1.1 sommerfe u_int16_t val;
278 1.1 sommerfe {
279 1.3 sommerfe bus_space_write_2(sc->sc_memt, sc->sc_memh, off, val);
280 1.1 sommerfe }
281 1.1 sommerfe
282 1.1 sommerfe static void mem_write_4 (sc, off, val)
283 1.1 sommerfe struct am79c930_softc *sc;
284 1.1 sommerfe u_int32_t off;
285 1.1 sommerfe u_int32_t val;
286 1.1 sommerfe {
287 1.3 sommerfe bus_space_write_4(sc->sc_memt, sc->sc_memh, off, val);
288 1.1 sommerfe }
289 1.1 sommerfe
290 1.1 sommerfe static void mem_write_bytes (sc, off, ptr, len)
291 1.1 sommerfe struct am79c930_softc *sc;
292 1.1 sommerfe u_int32_t off;
293 1.1 sommerfe u_int8_t *ptr;
294 1.1 sommerfe size_t len;
295 1.1 sommerfe {
296 1.3 sommerfe bus_space_write_region_1 (sc->sc_memt, sc->sc_memh, off, ptr, len);
297 1.1 sommerfe }
298 1.1 sommerfe
299 1.1 sommerfe
300 1.1 sommerfe static u_int8_t mem_read_1 (sc, off)
301 1.1 sommerfe struct am79c930_softc *sc;
302 1.1 sommerfe u_int32_t off;
303 1.1 sommerfe {
304 1.1 sommerfe return bus_space_read_1(sc->sc_memt, sc->sc_memh, off);
305 1.1 sommerfe }
306 1.1 sommerfe
307 1.1 sommerfe static u_int16_t mem_read_2 (sc, off)
308 1.1 sommerfe struct am79c930_softc *sc;
309 1.1 sommerfe u_int32_t off;
310 1.1 sommerfe {
311 1.3 sommerfe return bus_space_read_2(sc->sc_memt, sc->sc_memh, off);
312 1.1 sommerfe }
313 1.1 sommerfe
314 1.1 sommerfe static u_int32_t mem_read_4 (sc, off)
315 1.1 sommerfe struct am79c930_softc *sc;
316 1.1 sommerfe u_int32_t off;
317 1.1 sommerfe {
318 1.3 sommerfe return bus_space_read_4(sc->sc_memt, sc->sc_memh, off);
319 1.1 sommerfe }
320 1.1 sommerfe
321 1.1 sommerfe
322 1.1 sommerfe
323 1.1 sommerfe static void mem_read_bytes (sc, off, ptr, len)
324 1.1 sommerfe struct am79c930_softc *sc;
325 1.1 sommerfe u_int32_t off;
326 1.1 sommerfe u_int8_t *ptr;
327 1.1 sommerfe size_t len;
328 1.1 sommerfe {
329 1.3 sommerfe bus_space_read_region_1 (sc->sc_memt, sc->sc_memh, off, ptr, len);
330 1.1 sommerfe }
331 1.1 sommerfe
332 1.1 sommerfe
333 1.1 sommerfe
334 1.1 sommerfe
335 1.1 sommerfe /*
336 1.1 sommerfe * Set bits in GCR.
337 1.1 sommerfe */
338 1.1 sommerfe
339 1.1 sommerfe void am79c930_gcr_setbits (sc, bits)
340 1.1 sommerfe struct am79c930_softc *sc;
341 1.1 sommerfe u_int8_t bits;
342 1.1 sommerfe {
343 1.1 sommerfe u_int8_t gcr = bus_space_read_1 (sc->sc_iot, sc->sc_ioh, AM79C930_GCR);
344 1.1 sommerfe
345 1.1 sommerfe gcr |= bits;
346 1.1 sommerfe
347 1.1 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_GCR, gcr);
348 1.1 sommerfe }
349 1.1 sommerfe
350 1.1 sommerfe /*
351 1.1 sommerfe * Clear bits in GCR.
352 1.1 sommerfe */
353 1.1 sommerfe
354 1.1 sommerfe void am79c930_gcr_clearbits (sc, bits)
355 1.1 sommerfe struct am79c930_softc *sc;
356 1.1 sommerfe u_int8_t bits;
357 1.1 sommerfe {
358 1.1 sommerfe u_int8_t gcr = bus_space_read_1 (sc->sc_iot, sc->sc_ioh, AM79C930_GCR);
359 1.1 sommerfe
360 1.1 sommerfe gcr &= ~bits;
361 1.1 sommerfe
362 1.1 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_GCR, gcr);
363 1.1 sommerfe }
364 1.1 sommerfe
365 1.1 sommerfe u_int8_t am79c930_gcr_read (sc)
366 1.1 sommerfe struct am79c930_softc *sc;
367 1.1 sommerfe {
368 1.1 sommerfe return bus_space_read_1 (sc->sc_iot, sc->sc_ioh, AM79C930_GCR);
369 1.1 sommerfe }
370 1.1 sommerfe
371 1.1 sommerfe #if 0
372 1.1 sommerfe void am79c930_regdump (sc)
373 1.1 sommerfe struct am79c930_softc *sc;
374 1.1 sommerfe {
375 1.1 sommerfe u_int8_t buf[8];
376 1.1 sommerfe int i;
377 1.1 sommerfe
378 1.1 sommerfe AM930_DELAY(5);
379 1.1 sommerfe for (i=0; i<8; i++) {
380 1.1 sommerfe buf[i] = bus_space_read_1 (sc->sc_iot, sc->sc_ioh, i);
381 1.1 sommerfe AM930_DELAY(5);
382 1.1 sommerfe }
383 1.1 sommerfe printf("am79c930: regdump:");
384 1.1 sommerfe for (i=0; i<8; i++) {
385 1.1 sommerfe printf(" %02x", buf[i]);
386 1.1 sommerfe }
387 1.1 sommerfe printf("\n");
388 1.1 sommerfe }
389 1.1 sommerfe #endif
390 1.1 sommerfe
391 1.1 sommerfe void am79c930_chip_init (sc, how)
392 1.1 sommerfe struct am79c930_softc *sc;
393 1.1 sommerfe {
394 1.1 sommerfe /* zero the bank select register, and leave it that way.. */
395 1.1 sommerfe bus_space_write_1(sc->sc_iot, sc->sc_ioh, AM79C930_BSS, 0);
396 1.1 sommerfe if (how)
397 1.1 sommerfe sc->sc_ops = &memspace_ops;
398 1.1 sommerfe else
399 1.1 sommerfe sc->sc_ops = &iospace_ops;
400 1.1 sommerfe }
401 1.1 sommerfe
402 1.1 sommerfe
403