dec_6600.c revision 1.10 
1/* $NetBSD: dec_6600.c,v 1.10 2001/04/25 17:53:05 bouyer 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 <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
31
32__KERNEL_RCSID(0, "$NetBSD: dec_6600.c,v 1.10 2001/04/25 17:53:05 bouyer Exp $");
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/device.h>
37#include <sys/termios.h>
38#include <dev/cons.h>
39
40#include <machine/rpb.h>
41#include <machine/autoconf.h>
42#include <machine/conf.h>
43#include <machine/bus.h>
44
45#include <dev/ic/comreg.h>
46#include <dev/ic/comvar.h>
47
48#include <dev/isa/isareg.h>
49#include <dev/isa/isavar.h>
50#include <dev/ic/i8042reg.h>
51#include <dev/ic/pckbcvar.h>
52#include <dev/pci/pcireg.h>
53#include <dev/pci/pcivar.h>
54
55#include <alpha/pci/tsreg.h>
56#include <alpha/pci/tsvar.h>
57
58#include <dev/scsipi/scsi_all.h>
59#include <dev/scsipi/scsipi_all.h>
60#include <dev/scsipi/scsiconf.h>
61#include <dev/ata/atavar.h>
62
63#include "pckbd.h"
64
65#ifndef CONSPEED
66#define CONSPEED TTYDEF_SPEED
67#endif
68
69#define	DR_VERBOSE(f) while (0)
70
71static int comcnrate __attribute__((unused)) = CONSPEED;
72
73void dec_6600_init __P((void));
74static void dec_6600_cons_init __P((void));
75static void dec_6600_device_register __P((struct device *, void *));
76
77#ifdef KGDB
78#include <machine/db_machdep.h>
79
80static const char *kgdb_devlist[] = {
81	"com",
82	NULL,
83};
84#endif /* KGDB */
85
86void
87dec_6600_init()
88{
89
90	platform.family = "6600";
91
92	if ((platform.model = alpha_dsr_sysname()) == NULL) {
93		/* XXX Don't know the system variations, yet. */
94		platform.model = alpha_unknown_sysname();
95	}
96
97	platform.iobus = "tsc";
98	platform.cons_init = dec_6600_cons_init;
99	platform.device_register = dec_6600_device_register;
100	STQP(TS_C_DIM0) = 0UL;
101	STQP(TS_C_DIM1) = 0UL;
102}
103
104static void
105dec_6600_cons_init()
106{
107	struct ctb *ctb;
108	u_int64_t ctbslot;
109	struct tsp_config *tsp;
110
111	ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
112	ctbslot = ctb->ctb_turboslot;
113
114	/* Console hose defaults to hose 0. */
115	tsp_console_hose = 0;
116
117	tsp = tsp_init(0, tsp_console_hose);
118
119	switch (ctb->ctb_term_type) {
120	case 2:
121		/* serial console ... */
122		assert(CTB_TURBOSLOT_HOSE(ctbslot) == 0);
123		/* XXX */
124		{
125			/*
126			 * Delay to allow PROM putchars to complete.
127			 * FIFO depth * character time,
128			 * character time = (1000000 / (defaultrate / 10))
129			 */
130			DELAY(160000000 / comcnrate);
131
132			if(comcnattach(&tsp->pc_iot, 0x3f8, comcnrate,
133			    COM_FREQ,
134			    (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
135				panic("can't init serial console");
136
137			break;
138		}
139
140	case 3:
141#if NPCKBD > 0
142		/* display console ... */
143		/* XXX */
144		(void) pckbc_cnattach(&tsp->pc_iot, IO_KBD, KBCMDP,
145		    PCKBC_KBD_SLOT);
146
147		if (CTB_TURBOSLOT_TYPE(ctbslot) ==
148		    CTB_TURBOSLOT_TYPE_ISA)
149			isa_display_console(&tsp->pc_iot, &tsp->pc_memt);
150		else {
151			/* The display PCI might be different */
152			tsp_console_hose = CTB_TURBOSLOT_HOSE(ctbslot);
153			tsp = tsp_init(0, tsp_console_hose);
154			pci_display_console(&tsp->pc_iot, &tsp->pc_memt,
155			    &tsp->pc_pc, CTB_TURBOSLOT_BUS(ctbslot),
156			    CTB_TURBOSLOT_SLOT(ctbslot), 0);
157		}
158#else
159		panic("not configured to use display && keyboard console");
160#endif
161		break;
162
163	default:
164		printf("ctb_term_type = 0x%lx ctb_turboslot = 0x%lx"
165		    " hose = %ld\n", ctb->ctb_term_type, ctbslot,
166		    CTB_TURBOSLOT_HOSE(ctbslot));
167
168		panic("consinit: unknown console type %ld\n",
169		    ctb->ctb_term_type);
170	}
171#ifdef KGDB
172	/* Attach the KGDB device. */
173	alpha_kgdb_init(kgdb_devlist, &tsp->pc_iot);
174#endif /* KGDB */
175}
176
177static void
178dec_6600_device_register(dev, aux)
179	struct device *dev;
180	void *aux;
181{
182	static int found, initted, scsiboot, ideboot, netboot;
183	static struct device *primarydev, *pcidev, *scsipidev;
184	struct bootdev_data *b = bootdev_data;
185	struct device *parent = dev->dv_parent;
186	struct cfdata *cf = dev->dv_cfdata;
187	struct cfdriver *cd = cf->cf_driver;
188
189	if (found)
190		return;
191
192	if (!initted) {
193		scsiboot = (strcmp(b->protocol, "SCSI") == 0);
194		netboot = (strcmp(b->protocol, "BOOTP") == 0) ||
195		    (strcmp(b->protocol, "MOP") == 0);
196		/*
197		 * Add an extra check to boot from ide drives:
198		 * Newer SRM firmware use the protocol identifier IDE,
199		 * older SRM firmware use the protocol identifier SCSI.
200		 */
201		ideboot = (strcmp(b->protocol, "IDE") == 0);
202		DR_VERBOSE(printf("scsiboot = %d, ideboot = %d, netboot = %d\n",
203		    scsiboot, ideboot, netboot));
204		initted = 1;
205	}
206	if (primarydev == NULL) {
207		if (strcmp(cd->cd_name, "tsp"))
208			return;
209		else {
210			struct tsp_attach_args *tsp = aux;
211
212			if (b->bus != tsp->tsp_slot)
213				return;
214			primarydev = dev;
215			DR_VERBOSE(printf("\nprimarydev = %s\n",
216			    primarydev->dv_xname));
217			return;
218		}
219	}
220	if (pcidev == NULL) {
221		if (parent != primarydev)
222			return;
223		if (strcmp(cd->cd_name, "pci"))
224			return;
225		else {
226			struct pcibus_attach_args *pba = aux;
227
228			if ((b->slot / 1000) != pba->pba_bus)
229				return;
230
231			pcidev = dev;
232			DR_VERBOSE(printf("\npcidev = %s\n",
233			    pcidev->dv_xname));
234			return;
235		}
236	}
237	if ((ideboot || scsiboot) && (scsipidev == NULL)) {
238		if (parent != pcidev)
239			return;
240		else {
241			struct pci_attach_args *pa = aux;
242
243			if (b->slot % 1000 / 100 != pa->pa_function)
244				return;
245			if (b->slot % 100 != pa->pa_device)
246				return;
247
248			scsipidev = dev;
249			DR_VERBOSE(printf("\nscsipidev = %s\n",
250			    scsipidev->dv_xname));
251			return;
252		}
253	}
254	if ((ideboot || scsiboot) &&
255	    (!strcmp(cd->cd_name, "sd") ||
256	     !strcmp(cd->cd_name, "st") ||
257	     !strcmp(cd->cd_name, "cd"))) {
258		struct scsipibus_attach_args *sa = aux;
259
260		if (parent->dv_parent != scsipidev)
261			return;
262
263		if ((sa->sa_periph->periph_channel->chan_bustype->bustype_type
264		     == SCSIPI_BUSTYPE_SCSI ||
265		     sa->sa_periph->periph_channel->chan_bustype->bustype_type
266		     == SCSIPI_BUSTYPE_ATAPI)
267		    && b->unit / 100 != sa->sa_periph->periph_target)
268			return;
269
270		/* XXX LUN! */
271
272		switch (b->boot_dev_type) {
273		case 0:
274			if (strcmp(cd->cd_name, "sd") &&
275			    strcmp(cd->cd_name, "cd"))
276				return;
277			break;
278		case 1:
279			if (strcmp(cd->cd_name, "st"))
280				return;
281			break;
282		default:
283			return;
284		}
285
286		/* we've found it! */
287		booted_device = dev;
288		DR_VERBOSE(printf("\nbooted_device = %s\n",
289		    booted_device->dv_xname));
290		found = 1;
291	}
292
293	/*
294	 * Support to boot from IDE drives.
295	 */
296	if ((ideboot || scsiboot) && !strcmp(cd->cd_name, "wd")) {
297		struct ata_atapi_attach *aa_link = aux;
298		if ((strncmp("pciide", parent->dv_xname, 6) != 0)) {
299			return;
300		} else {
301			if (parent != scsipidev)
302				return;
303		}
304		DR_VERBOSE(printf("\nAtapi info: drive: %d, channel %d\n",
305		    aa_link->aa_drv_data->drive, aa_link->aa_channel));
306		DR_VERBOSE(printf("Bootdev info: unit: %d, channel: %d\n",
307		    b->unit, b->channel));
308		if (b->unit != aa_link->aa_drv_data->drive ||
309		    b->channel != aa_link->aa_channel)
310			return;
311
312		/* we've found it! */
313		booted_device = dev;
314		DR_VERBOSE(printf("booted_device = %s\n",
315		    booted_device->dv_xname));
316		found = 1;
317	}
318	if (netboot) {
319		if (parent != pcidev)
320			return;
321		else {
322			struct pci_attach_args *pa = aux;
323
324			if (b->slot % 1000 / 100 != pa->pa_function)
325				return;
326			if ((b->slot % 100) != pa->pa_device)
327				return;
328
329			booted_device = dev;
330			DR_VERBOSE(printf("\nbooted_device = %s\n",
331			    booted_device->dv_xname));
332			found = 1;
333			return;
334		}
335	}
336}
337