1 /* $NetBSD: dec_axppci_33.c,v 1.70 2024/03/31 19:06:30 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 1995, 1996, 1997 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
22 * School of Computer Science
23 * Carnegie Mellon University
24 * Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29 /*
30 * Additional Copyright (c) 1997 by Matthew Jacob for NASA/Ames Research Center
31 */
32
33 #include "opt_kgdb.h"
34
35 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
36
37 __KERNEL_RCSID(0, "$NetBSD: dec_axppci_33.c,v 1.70 2024/03/31 19:06:30 thorpej Exp $");
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/device.h>
42 #include <sys/termios.h>
43 #include <sys/conf.h>
44 #include <dev/cons.h>
45
46 #include <machine/rpb.h>
47 #include <machine/alpha.h>
48 #include <machine/autoconf.h>
49 #include <machine/cpuconf.h>
50
51 #include <dev/ic/comreg.h>
52 #include <dev/ic/comvar.h>
53
54 #include <dev/isa/isareg.h>
55 #include <dev/isa/isavar.h>
56 #include <dev/ic/i8042reg.h>
57 #include <dev/ic/pckbcvar.h>
58 #include <dev/pci/pcireg.h>
59 #include <dev/pci/pcivar.h>
60
61 #include <alpha/pci/lcareg.h>
62 #include <alpha/pci/lcavar.h>
63
64 #include <dev/scsipi/scsi_all.h>
65 #include <dev/scsipi/scsipi_all.h>
66 #include <dev/scsipi/scsiconf.h>
67
68 #include "pckbd.h"
69
70 #ifndef CONSPEED
71 #define CONSPEED TTYDEF_SPEED
72 #endif
73 static int comcnrate = CONSPEED;
74
75 void dec_axppci_33_init(void);
76 static void dec_axppci_33_cons_init(void);
77 static void dec_axppci_33_device_register(device_t, void *);
78
79 #ifdef KGDB
80 #include <machine/db_machdep.h>
81
82 static const char *kgdb_devlist[] = {
83 "com",
84 NULL,
85 };
86 #endif /* KGDB */
87
88 const struct alpha_variation_table dec_axppci_33_variations[] = {
89 { 0, "Alpha PC AXPpci33 (\"NoName\")" },
90 { 0, NULL },
91 };
92
93 static struct lca_config *lca_preinit(void);
94
95 static struct lca_config *
lca_preinit(void)96 lca_preinit(void)
97 {
98 extern struct lca_config lca_configuration;
99
100 lca_init(&lca_configuration);
101 return &lca_configuration;
102 }
103
104 #define NSIO_PORT 0x26e /* Hardware enabled option: 0x398 */
105 #define NSIO_BASE 0
106 #define NSIO_INDEX NSIO_BASE
107 #define NSIO_DATA 1
108 #define NSIO_SIZE 2
109 #define NSIO_CFG0 0
110 #define NSIO_CFG1 1
111 #define NSIO_CFG2 2
112 #define NSIO_IDE_ENABLE 0x40
113
114 void
dec_axppci_33_init(void)115 dec_axppci_33_init(void)
116 {
117 int cfg0val;
118 uint64_t variation;
119 bus_space_tag_t iot;
120 struct lca_config *lcp;
121 bus_space_handle_t nsio;
122 #define A33_NSIOBARRIER(type) bus_space_barrier(iot, nsio,\
123 NSIO_BASE, NSIO_SIZE, (type))
124
125 platform.family = "DEC AXPpci";
126
127 if ((platform.model = alpha_dsr_sysname()) == NULL) {
128 variation = hwrpb->rpb_variation & SV_ST_MASK;
129 if ((platform.model = alpha_variation_name(variation,
130 dec_axppci_33_variations)) == NULL)
131 platform.model = alpha_unknown_sysname();
132 }
133
134 platform.iobus = "lca";
135 platform.cons_init = dec_axppci_33_cons_init;
136 platform.device_register = dec_axppci_33_device_register;
137
138 lcp = lca_preinit();
139 iot = &lcp->lc_iot;
140 if (bus_space_map(iot, NSIO_PORT, NSIO_SIZE, 0, &nsio))
141 return;
142
143 bus_space_write_1(iot, nsio, NSIO_INDEX, NSIO_CFG0);
144 A33_NSIOBARRIER(BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
145 cfg0val = bus_space_read_1(iot, nsio, NSIO_DATA);
146
147 cfg0val |= NSIO_IDE_ENABLE;
148
149 bus_space_write_1(iot, nsio, NSIO_INDEX, NSIO_CFG0);
150 A33_NSIOBARRIER(BUS_SPACE_BARRIER_WRITE);
151 bus_space_write_1(iot, nsio, NSIO_DATA, cfg0val);
152 A33_NSIOBARRIER(BUS_SPACE_BARRIER_WRITE);
153 bus_space_write_1(iot, nsio, NSIO_DATA, cfg0val);
154
155 /* Leave nsio mapped to catch any accidental port space collisions */
156
157 lca_probe_bcache();
158 }
159
160 static void
dec_axppci_33_cons_init(void)161 dec_axppci_33_cons_init(void)
162 {
163 struct ctb *ctb;
164 struct lca_config *lcp;
165
166 lcp = lca_preinit();
167
168 ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
169
170 switch (ctb->ctb_term_type) {
171 case CTB_PRINTERPORT:
172 /* serial console ... */
173 /* XXX */
174 {
175 /*
176 * Delay to allow PROM putchars to complete.
177 * FIFO depth * character time,
178 * character time = (1000000 / (defaultrate / 10))
179 */
180 DELAY(160000000 / comcnrate);
181
182 if(comcnattach(&lcp->lc_iot, 0x3f8, comcnrate,
183 COM_FREQ, COM_TYPE_NORMAL,
184 (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
185 panic("can't init serial console");
186
187 break;
188 }
189
190 case CTB_GRAPHICS:
191 #if NPCKBD > 0
192 /* display console ... */
193 /* XXX */
194 (void) pckbc_cnattach(&lcp->lc_iot, IO_KBD, KBCMDP,
195 PCKBC_KBD_SLOT, 0);
196
197 if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
198 CTB_TURBOSLOT_TYPE_ISA)
199 isa_display_console(&lcp->lc_iot, &lcp->lc_memt);
200 else
201 pci_display_console(&lcp->lc_iot, &lcp->lc_memt,
202 &lcp->lc_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
203 CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
204 #else
205 panic("not configured to use display && keyboard console");
206 #endif
207 break;
208
209 default:
210 printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
211 printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
212
213 panic("consinit: unknown console type %ld",
214 ctb->ctb_term_type);
215 }
216 #ifdef KGDB
217 /* Attach the KGDB device. */
218 alpha_kgdb_init(kgdb_devlist, &lcp->lc_iot);
219 #endif /* KGDB */
220 }
221
222 static void
dec_axppci_33_device_register(device_t dev,void * aux)223 dec_axppci_33_device_register(device_t dev, void *aux)
224 {
225 static int found, initted, diskboot, netboot;
226 static device_t pcidev, ctrlrdev;
227 struct bootdev_data *b = bootdev_data;
228 device_t parent = device_parent(dev);
229
230 if (b == NULL || found)
231 return;
232
233 if (!initted) {
234 diskboot = (strcasecmp(b->protocol, "SCSI") == 0);
235 netboot = (strcasecmp(b->protocol, "BOOTP") == 0) ||
236 (strcasecmp(b->protocol, "MOP") == 0);
237 #if 0
238 printf("diskboot = %d, netboot = %d\n", diskboot, netboot);
239 #endif
240 initted =1;
241 }
242
243 if (pcidev == NULL) {
244 if (!device_is_a(dev, "pci"))
245 return;
246 else {
247 struct pcibus_attach_args *pba = aux;
248
249 if ((b->slot / 1000) != pba->pba_bus)
250 return;
251
252 pcidev = dev;
253 #if 0
254 printf("\npcidev = %s\n", device_xname(dev));
255 #endif
256 return;
257 }
258 }
259
260 if (ctrlrdev == NULL) {
261 if (parent != pcidev)
262 return;
263 else {
264 struct pci_attach_args *pa = aux;
265 int slot;
266
267 slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
268 pa->pa_device;
269 if (b->slot != slot)
270 return;
271
272 if (netboot) {
273 booted_device = dev;
274 #if 0
275 printf("\nbooted_device = %s\n", device_xname(dev));
276 #endif
277 found = 1;
278 } else {
279 ctrlrdev = dev;
280 #if 0
281 printf("\nctrlrdev = %s\n", device_xname(dev));
282 #endif
283 }
284 return;
285 }
286 }
287
288 if (!diskboot)
289 return;
290
291 if (device_is_a(dev, "sd") ||
292 device_is_a(dev, "st") ||
293 device_is_a(dev, "cd")) {
294 struct scsipibus_attach_args *sa = aux;
295 struct scsipi_periph *periph = sa->sa_periph;
296 int unit;
297
298 if (device_parent(parent) != ctrlrdev)
299 return;
300
301 unit = periph->periph_target * 100 + periph->periph_lun;
302 if (b->unit != unit)
303 return;
304 if (b->channel != periph->periph_channel->chan_channel)
305 return;
306
307 /* we've found it! */
308 booted_device = dev;
309 #if 0
310 printf("\nbooted_device = %s\n", device_xname(dev));
311 #endif
312 found = 1;
313 }
314 }
315