xref: /netbsd/sys/arch/alpha/alpha/dec_550.c (revision c4a72b64) 
1 /* $NetBSD: dec_550.c,v 1.20 2002/09/27 15:35:34 provos 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_550.c,v 1.20 2002/09/27 15:35:34 provos 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 <uvm/uvm_extern.h>
47 
48 #include <machine/rpb.h>
49 #include <machine/autoconf.h>
50 #include <machine/cpuconf.h>
51 #include <machine/bus.h>
52 
53 #include <dev/ic/comreg.h>
54 #include <dev/ic/comvar.h>
55 
56 #include <dev/isa/isareg.h>
57 #include <dev/isa/isavar.h>
58 #include <dev/ic/i8042reg.h>
59 #include <dev/ic/pckbcvar.h>
60 #include <dev/pci/pcireg.h>
61 #include <dev/pci/pcivar.h>
62 
63 #include <alpha/pci/ciareg.h>
64 #include <alpha/pci/ciavar.h>
65 
66 #include <dev/scsipi/scsi_all.h>
67 #include <dev/scsipi/scsipi_all.h>
68 #include <dev/scsipi/scsiconf.h>
69 #include <dev/ata/atavar.h>
70 #include <dev/ata/wdvar.h>
71 
72 /* Write this to Pyxis General Purpose Output to turn off the power. */
73 #define	DEC_550_PYXIS_GPO_POWERDOWN	0x00000400
74 
75 #include "pckbd.h"
76 
77 #ifndef CONSPEED
78 #define CONSPEED TTYDEF_SPEED
79 #endif
80 static int comcnrate = CONSPEED;
81 
82 #define	DR_VERBOSE(f) while (0)
83 
84 void dec_550_init __P((void));
85 static void dec_550_cons_init __P((void));
86 static void dec_550_device_register __P((struct device *, void *));
87 static void dec_550_powerdown __P((void));
88 
89 #ifdef KGDB
90 #include <machine/db_machdep.h>
91 
92 static const char *kgdb_devlist[] = {
93 	"com",
94 	NULL,
95 };
96 #endif /* KGDB */
97 
98 void
99 dec_550_init()
100 {
101 
102 	platform.family = "Digital Personal Workstation";
103 
104 	if ((platform.model = alpha_dsr_sysname()) == NULL) {
105 		/* XXX Don't know the system variations, yet. */
106 		platform.model = alpha_unknown_sysname();
107 	}
108 
109 	platform.iobus = "cia";
110 	platform.cons_init = dec_550_cons_init;
111 	platform.device_register = dec_550_device_register;
112 	platform.powerdown = dec_550_powerdown;
113 
114 	/*
115 	 * If Miata systems have a secondary cache, it's 2MB.
116 	 */
117 	uvmexp.ncolors = atop(2 * 1024 * 1024);
118 }
119 
120 static void
121 dec_550_cons_init()
122 {
123 	struct ctb *ctb;
124 	struct cia_config *ccp;
125 	extern struct cia_config cia_configuration;
126 
127 	ccp = &cia_configuration;
128 	cia_init(ccp, 0);
129 
130 	ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
131 
132 	switch (ctb->ctb_term_type) {
133 	case CTB_PRINTERPORT:
134 		/* serial console ... */
135 		/* XXX */
136 		{
137 			/*
138 			 * Delay to allow PROM putchars to complete.
139 			 * FIFO depth * character time,
140 			 * character time = (1000000 / (defaultrate / 10))
141 			 */
142 			DELAY(160000000 / comcnrate);
143 
144 			if(comcnattach(&ccp->cc_iot, 0x3f8, comcnrate,
145 			    COM_FREQ,
146 			    (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
147 				panic("can't init serial console");
148 
149 			break;
150 		}
151 
152 	case CTB_GRAPHICS:
153 #if NPCKBD > 0
154 		/* display console ... */
155 		/* XXX */
156 		(void) pckbc_cnattach(&ccp->cc_iot, IO_KBD, KBCMDP,
157 		    PCKBC_KBD_SLOT);
158 
159 		if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
160 		    CTB_TURBOSLOT_TYPE_ISA)
161 			isa_display_console(&ccp->cc_iot, &ccp->cc_memt);
162 		else
163 			pci_display_console(&ccp->cc_iot, &ccp->cc_memt,
164 			    &ccp->cc_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
165 			    CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
166 #else
167 		panic("not configured to use display && keyboard console");
168 #endif
169 		break;
170 
171 	default:
172 		printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
173 		printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
174 
175 		panic("consinit: unknown console type %ld",
176 		    ctb->ctb_term_type);
177 	}
178 #ifdef KGDB
179 	/* Attach the KGDB device. */
180 	alpha_kgdb_init(kgdb_devlist, &ccp->cc_iot);
181 #endif /* KGDB */
182 }
183 
184 static void
185 dec_550_device_register(dev, aux)
186 	struct device *dev;
187 	void *aux;
188 {
189 	static int found, initted, scsiboot, ideboot, netboot;
190 	static struct device *pcidev, *scsipidev;
191 	struct bootdev_data *b = bootdev_data;
192 	struct device *parent = dev->dv_parent;
193 	struct cfdata *cf = dev->dv_cfdata;
194 	const char *name = cf->cf_name;
195 
196 	if (found)
197 		return;
198 
199 	if (!initted) {
200 		scsiboot = (strcmp(b->protocol, "SCSI") == 0);
201 		netboot = (strcmp(b->protocol, "BOOTP") == 0) ||
202 		    (strcmp(b->protocol, "MOP") == 0);
203 		/*
204 		 * Add an extra check to boot from ide drives:
205 		 * Newer SRM firmware use the protocol identifier IDE,
206 		 * older SRM firmware use the protocol identifier SCSI.
207 		 */
208 		ideboot = (strcmp(b->protocol, "IDE") == 0);
209 		DR_VERBOSE(printf("scsiboot = %d, ideboot = %d, netboot = %d\n",
210 		    scsiboot, ideboot, netboot));
211 		initted = 1;
212 	}
213 
214 	if (pcidev == NULL) {
215 		if (strcmp(name, "pci"))
216 			return;
217 		else {
218 			struct pcibus_attach_args *pba = aux;
219 
220 			if ((b->slot / 1000) != pba->pba_bus)
221 				return;
222 
223 			pcidev = dev;
224 			DR_VERBOSE(printf("\npcidev = %s\n",
225 			    pcidev->dv_xname));
226 			return;
227 		}
228 	}
229 
230 	if ((ideboot || scsiboot) && (scsipidev == NULL)) {
231 		if (parent != pcidev)
232 			return;
233 		else {
234 			struct pci_attach_args *pa = aux;
235 
236 			if ((b->slot % 1000) != pa->pa_device)
237 				return;
238 
239 			/* XXX function? */
240 
241 			scsipidev = dev;
242 			DR_VERBOSE(printf("\nscsipidev = %s\n",
243 			    scsipidev->dv_xname));
244 			return;
245 		}
246 	}
247 
248 	if ((ideboot || scsiboot) &&
249 	    (!strcmp(name, "sd") ||
250 	     !strcmp(name, "st") ||
251 	     !strcmp(name, "cd"))) {
252 		struct scsipibus_attach_args *sa = aux;
253 
254 		if (parent->dv_parent != scsipidev)
255 			return;
256 
257 		if ((sa->sa_periph->periph_channel->chan_bustype->bustype_type
258 		     == SCSIPI_BUSTYPE_SCSI ||
259 		     sa->sa_periph->periph_channel->chan_bustype->bustype_type
260 		     == SCSIPI_BUSTYPE_ATAPI)
261 		    && b->unit / 100 != sa->sa_periph->periph_target)
262 			return;
263 
264 		/* XXX LUN! */
265 
266 		switch (b->boot_dev_type) {
267 		case 0:
268 			if (strcmp(name, "sd") &&
269 			    strcmp(name, "cd"))
270 				return;
271 			break;
272 		case 1:
273 			if (strcmp(name, "st"))
274 				return;
275 			break;
276 		default:
277 			return;
278 		}
279 
280 		/* we've found it! */
281 		booted_device = dev;
282 		DR_VERBOSE(printf("\nbooted_device = %s\n",
283 		    booted_device->dv_xname));
284 		found = 1;
285 	}
286 
287 	/*
288 	 * Support to boot from IDE drives.
289 	 */
290 	if ((ideboot || scsiboot) && !strcmp(name, "wd")) {
291 		struct ata_device *adev = aux;
292 		if ((strncmp("pciide", parent->dv_xname, 6) != 0)) {
293 			return;
294 		} else {
295 			if (parent != scsipidev)
296 				return;
297 		}
298 		DR_VERBOSE(printf("\nAtapi info: drive: %d, channel %d\n",
299 		    adev->adev_drv_data->drive, adev->adev_channel));
300 		DR_VERBOSE(printf("Bootdev info: unit: %d, channel: %d\n",
301 		    b->unit, b->channel));
302 		if (b->unit != adev->adev_drv_data->drive ||
303 		    b->channel != adev->adev_channel)
304 			return;
305 
306 		/* we've found it! */
307 		booted_device = dev;
308 		DR_VERBOSE(printf("booted_device = %s\n",
309 		    booted_device->dv_xname));
310 		found = 1;
311 	}
312 
313 	if (netboot) {
314 		if (parent != pcidev)
315 			return;
316 		else {
317 			struct pci_attach_args *pa = aux;
318 
319 			if ((b->slot % 1000) != pa->pa_device)
320 				return;
321 
322 			/* XXX function? */
323 
324 			booted_device = dev;
325 			DR_VERBOSE(printf("\nbooted_device = %s\n",
326 			    booted_device->dv_xname));
327 			found = 1;
328 			return;
329 		}
330 	}
331 }
332 
333 static void
334 dec_550_powerdown()
335 {
336 
337 	REGVAL(PYXIS_GPO) = DEC_550_PYXIS_GPO_POWERDOWN;
338 	alpha_mb();
339 }
340