dec_6600.c revision 1.17 
1/* $NetBSD: dec_6600.c,v 1.17 2002/09/27 15:35:35 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#include "opt_kgdb.h"
31
32#include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
33
34__KERNEL_RCSID(0, "$NetBSD: dec_6600.c,v 1.17 2002/09/27 15:35:35 provos Exp $");
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/device.h>
39#include <sys/termios.h>
40#include <sys/conf.h>
41#include <dev/cons.h>
42
43#include <machine/rpb.h>
44#include <machine/autoconf.h>
45#include <machine/cpuconf.h>
46#include <machine/bus.h>
47
48#include <dev/ic/comreg.h>
49#include <dev/ic/comvar.h>
50
51#include <dev/isa/isareg.h>
52#include <dev/isa/isavar.h>
53#include <dev/ic/i8042reg.h>
54#include <dev/ic/pckbcvar.h>
55#include <dev/pci/pcireg.h>
56#include <dev/pci/pcivar.h>
57
58#include <alpha/pci/tsreg.h>
59#include <alpha/pci/tsvar.h>
60
61#include <dev/scsipi/scsi_all.h>
62#include <dev/scsipi/scsipi_all.h>
63#include <dev/scsipi/scsiconf.h>
64#include <dev/ata/atavar.h>
65#include <dev/ata/wdvar.h>
66
67#include "pckbd.h"
68
69#ifndef CONSPEED
70#define CONSPEED TTYDEF_SPEED
71#endif
72
73#define	DR_VERBOSE(f) while (0)
74
75static int comcnrate __attribute__((unused)) = CONSPEED;
76
77void dec_6600_init __P((void));
78static void dec_6600_cons_init __P((void));
79static void dec_6600_device_register __P((struct device *, void *));
80
81#ifdef KGDB
82#include <machine/db_machdep.h>
83
84static const char *kgdb_devlist[] = {
85	"com",
86	NULL,
87};
88#endif /* KGDB */
89
90void
91dec_6600_init()
92{
93
94	platform.family = "6600";
95
96	if ((platform.model = alpha_dsr_sysname()) == NULL) {
97		/* XXX Don't know the system variations, yet. */
98		platform.model = alpha_unknown_sysname();
99	}
100
101	platform.iobus = "tsc";
102	platform.cons_init = dec_6600_cons_init;
103	platform.device_register = dec_6600_device_register;
104	STQP(TS_C_DIM0) = 0UL;
105	STQP(TS_C_DIM1) = 0UL;
106}
107
108static void
109dec_6600_cons_init()
110{
111	struct ctb *ctb;
112	u_int64_t ctbslot;
113	struct tsp_config *tsp;
114
115	ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
116	ctbslot = ctb->ctb_turboslot;
117
118	/* Console hose defaults to hose 0. */
119	tsp_console_hose = 0;
120
121	tsp = tsp_init(0, tsp_console_hose);
122
123	switch (ctb->ctb_term_type) {
124	case CTB_PRINTERPORT:
125		/* serial console ... */
126		assert(CTB_TURBOSLOT_HOSE(ctbslot) == 0);
127		/* XXX */
128		{
129			/*
130			 * Delay to allow PROM putchars to complete.
131			 * FIFO depth * character time,
132			 * character time = (1000000 / (defaultrate / 10))
133			 */
134			DELAY(160000000 / comcnrate);
135
136			if(comcnattach(&tsp->pc_iot, 0x3f8, comcnrate,
137			    COM_FREQ,
138			    (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
139				panic("can't init serial console");
140
141			break;
142		}
143
144	case CTB_GRAPHICS:
145#if NPCKBD > 0
146		/* display console ... */
147		/* XXX */
148		(void) pckbc_cnattach(&tsp->pc_iot, IO_KBD, KBCMDP,
149		    PCKBC_KBD_SLOT);
150
151		if (CTB_TURBOSLOT_TYPE(ctbslot) ==
152		    CTB_TURBOSLOT_TYPE_ISA)
153			isa_display_console(&tsp->pc_iot, &tsp->pc_memt);
154		else {
155			/* The display PCI might be different */
156			tsp_console_hose = CTB_TURBOSLOT_HOSE(ctbslot);
157			tsp = tsp_init(0, tsp_console_hose);
158			pci_display_console(&tsp->pc_iot, &tsp->pc_memt,
159			    &tsp->pc_pc, CTB_TURBOSLOT_BUS(ctbslot),
160			    CTB_TURBOSLOT_SLOT(ctbslot), 0);
161		}
162#else
163		panic("not configured to use display && keyboard console");
164#endif
165		break;
166
167	default:
168		printf("ctb_term_type = 0x%lx ctb_turboslot = 0x%lx"
169		    " hose = %ld\n", ctb->ctb_term_type, ctbslot,
170		    CTB_TURBOSLOT_HOSE(ctbslot));
171
172		panic("consinit: unknown console type %ld",
173		    ctb->ctb_term_type);
174	}
175#ifdef KGDB
176	/* Attach the KGDB device. */
177	alpha_kgdb_init(kgdb_devlist, &tsp->pc_iot);
178#endif /* KGDB */
179}
180
181static void
182dec_6600_device_register(dev, aux)
183	struct device *dev;
184	void *aux;
185{
186	static int found, initted, scsiboot, ideboot, netboot;
187	static struct device *primarydev, *pcidev, *scsipidev;
188	struct bootdev_data *b = bootdev_data;
189	struct device *parent = dev->dv_parent;
190	struct cfdata *cf = dev->dv_cfdata;
191	const char *name = cf->cf_name;
192
193	if (found)
194		return;
195
196	if (!initted) {
197		scsiboot = (strcmp(b->protocol, "SCSI") == 0);
198		netboot = (strcmp(b->protocol, "BOOTP") == 0) ||
199		    (strcmp(b->protocol, "MOP") == 0);
200		/*
201		 * Add an extra check to boot from ide drives:
202		 * Newer SRM firmware use the protocol identifier IDE,
203		 * older SRM firmware use the protocol identifier SCSI.
204		 */
205		ideboot = (strcmp(b->protocol, "IDE") == 0);
206		DR_VERBOSE(printf("scsiboot = %d, ideboot = %d, netboot = %d\n",
207		    scsiboot, ideboot, netboot));
208		initted = 1;
209	}
210	if (primarydev == NULL) {
211		if (strcmp(name, "tsp"))
212			return;
213		else {
214			struct tsp_attach_args *tsp = aux;
215
216			if (b->bus != tsp->tsp_slot)
217				return;
218			primarydev = dev;
219			DR_VERBOSE(printf("\nprimarydev = %s\n",
220			    primarydev->dv_xname));
221			return;
222		}
223	}
224	if (pcidev == NULL) {
225		if (parent != primarydev)
226			return;
227		if (strcmp(name, "pci"))
228			return;
229		else {
230			struct pcibus_attach_args *pba = aux;
231
232			if ((b->slot / 1000) != pba->pba_bus)
233				return;
234
235			pcidev = dev;
236			DR_VERBOSE(printf("\npcidev = %s\n",
237			    pcidev->dv_xname));
238			return;
239		}
240	}
241	if ((ideboot || scsiboot) && (scsipidev == NULL)) {
242		if (parent != pcidev)
243			return;
244		else {
245			struct pci_attach_args *pa = aux;
246
247			if (b->slot % 1000 / 100 != pa->pa_function)
248				return;
249			if (b->slot % 100 != pa->pa_device)
250				return;
251
252			scsipidev = dev;
253			DR_VERBOSE(printf("\nscsipidev = %s\n",
254			    scsipidev->dv_xname));
255			return;
256		}
257	}
258	if ((ideboot || scsiboot) &&
259	    (!strcmp(name, "sd") ||
260	     !strcmp(name, "st") ||
261	     !strcmp(name, "cd"))) {
262		struct scsipibus_attach_args *sa = aux;
263
264		if (parent->dv_parent != scsipidev)
265			return;
266
267		if ((sa->sa_periph->periph_channel->chan_bustype->bustype_type
268		     == SCSIPI_BUSTYPE_SCSI ||
269		     sa->sa_periph->periph_channel->chan_bustype->bustype_type
270		     == SCSIPI_BUSTYPE_ATAPI)
271		    && b->unit / 100 != sa->sa_periph->periph_target)
272			return;
273
274		/* XXX LUN! */
275
276		switch (b->boot_dev_type) {
277		case 0:
278			if (strcmp(name, "sd") &&
279			    strcmp(name, "cd"))
280				return;
281			break;
282		case 1:
283			if (strcmp(name, "st"))
284				return;
285			break;
286		default:
287			return;
288		}
289
290		/* we've found it! */
291		booted_device = dev;
292		DR_VERBOSE(printf("\nbooted_device = %s\n",
293		    booted_device->dv_xname));
294		found = 1;
295	}
296
297	/*
298	 * Support to boot from IDE drives.
299	 */
300	if ((ideboot || scsiboot) && !strcmp(name, "wd")) {
301		struct ata_device *adev = aux;
302		if ((strncmp("pciide", parent->dv_xname, 6) != 0)) {
303			return;
304		} else {
305			if (parent != scsipidev)
306				return;
307		}
308		DR_VERBOSE(printf("\nAtapi info: drive: %d, channel %d\n",
309		    adev->adev_drv_data->drive, adev->adev_channel));
310		DR_VERBOSE(printf("Bootdev info: unit: %d, channel: %d\n",
311		    b->unit, b->channel));
312		if (b->unit != adev->adev_drv_data->drive ||
313		    b->channel != adev->adev_channel)
314			return;
315
316		/* we've found it! */
317		booted_device = dev;
318		DR_VERBOSE(printf("booted_device = %s\n",
319		    booted_device->dv_xname));
320		found = 1;
321	}
322	if (netboot) {
323		if (parent != pcidev)
324			return;
325		else {
326			struct pci_attach_args *pa = aux;
327
328			if (b->slot % 1000 / 100 != pa->pa_function)
329				return;
330			if ((b->slot % 100) != pa->pa_device)
331				return;
332
333			booted_device = dev;
334			DR_VERBOSE(printf("\nbooted_device = %s\n",
335			    booted_device->dv_xname));
336			found = 1;
337			return;
338		}
339	}
340}
341