dec_6600.c revision 1.29 
1/* $NetBSD: dec_6600.c,v 1.29 2009/09/14 02:46:29 mhitch 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 1.29 2009/09/14 02:46:29 mhitch 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
66#include <dev/ic/mlxio.h>
67#include <dev/ic/mlxvar.h>
68
69#include <dev/i2o/i2o.h>
70#include <dev/i2o/iopio.h>
71#include <dev/i2o/iopvar.h>
72
73#include "pckbd.h"
74
75#ifndef CONSPEED
76#define CONSPEED TTYDEF_SPEED
77#endif
78
79#define	DR_VERBOSE(f) while (0)
80
81static int comcnrate __attribute__((unused)) = CONSPEED;
82
83void dec_6600_init(void);
84static void dec_6600_cons_init(void);
85static void dec_6600_device_register(struct device *, void *);
86
87#ifdef KGDB
88#include <machine/db_machdep.h>
89
90static const char *kgdb_devlist[] = {
91	"com",
92	NULL,
93};
94#endif /* KGDB */
95
96void
97dec_6600_init()
98{
99
100	platform.family = "6600";
101
102	if ((platform.model = alpha_dsr_sysname()) == NULL) {
103		/* XXX Don't know the system variations, yet. */
104		platform.model = alpha_unknown_sysname();
105	}
106
107	platform.iobus = "tsc";
108	platform.cons_init = dec_6600_cons_init;
109	platform.device_register = dec_6600_device_register;
110	STQP(TS_C_DIM0) = 0UL;
111	STQP(TS_C_DIM1) = 0UL;
112}
113
114static void
115dec_6600_cons_init()
116{
117	struct ctb *ctb;
118	u_int64_t ctbslot;
119	struct tsp_config *tsp;
120
121	ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
122	ctbslot = ctb->ctb_turboslot;
123
124	/* Console hose defaults to hose 0. */
125	tsp_console_hose = 0;
126
127	tsp = tsp_init(0, tsp_console_hose);
128
129	switch (ctb->ctb_term_type) {
130	case CTB_PRINTERPORT:
131		/* serial console ... */
132		assert(CTB_TURBOSLOT_HOSE(ctbslot) == 0);
133		/* XXX */
134		{
135			/*
136			 * Delay to allow PROM putchars to complete.
137			 * FIFO depth * character time,
138			 * character time = (1000000 / (defaultrate / 10))
139			 */
140			DELAY(160000000 / comcnrate);
141
142			if(comcnattach(&tsp->pc_iot, 0x3f8, comcnrate,
143			    COM_FREQ, COM_TYPE_NORMAL,
144			    (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
145				panic("can't init serial console");
146
147			break;
148		}
149
150	case CTB_GRAPHICS:
151#if NPCKBD > 0
152		/* display console ... */
153		/* XXX */
154		(void) pckbc_cnattach(&tsp->pc_iot, IO_KBD, KBCMDP,
155		    PCKBC_KBD_SLOT);
156
157		if (CTB_TURBOSLOT_TYPE(ctbslot) ==
158		    CTB_TURBOSLOT_TYPE_ISA)
159			isa_display_console(&tsp->pc_iot, &tsp->pc_memt);
160		else {
161			/* The display PCI might be different */
162			tsp_console_hose = CTB_TURBOSLOT_HOSE(ctbslot);
163			tsp = tsp_init(0, tsp_console_hose);
164			pci_display_console(&tsp->pc_iot, &tsp->pc_memt,
165			    &tsp->pc_pc, CTB_TURBOSLOT_BUS(ctbslot),
166			    CTB_TURBOSLOT_SLOT(ctbslot), 0);
167		}
168#else
169		panic("not configured to use display && keyboard console");
170#endif
171		break;
172
173	default:
174		printf("ctb_term_type = 0x%lx ctb_turboslot = 0x%lx"
175		    " hose = %ld\n", ctb->ctb_term_type, ctbslot,
176		    CTB_TURBOSLOT_HOSE(ctbslot));
177
178		panic("consinit: unknown console type %ld",
179		    ctb->ctb_term_type);
180	}
181#ifdef KGDB
182	/* Attach the KGDB device. */
183	alpha_kgdb_init(kgdb_devlist, &tsp->pc_iot);
184#endif /* KGDB */
185}
186
187static void
188dec_6600_device_register(struct device *dev, void *aux)
189{
190	static int found, initted, diskboot, netboot;
191	static struct device *primarydev, *pcidev, *ctrlrdev;
192	struct bootdev_data *b = bootdev_data;
193	struct device *parent = device_parent(dev);
194
195	if (found)
196		return;
197
198	if (!initted) {
199		diskboot = (strcasecmp(b->protocol, "SCSI") == 0) ||
200		    (strcasecmp(b->protocol, "RAID") == 0) ||
201		    (strcasecmp(b->protocol, "I2O") == 0) ||
202		    (strcasecmp(b->protocol, "IDE") == 0);
203		netboot = (strcasecmp(b->protocol, "BOOTP") == 0) ||
204		    (strcasecmp(b->protocol, "MOP") == 0);
205		DR_VERBOSE(printf("diskboot = %d, netboot = %d\n", diskboot,
206		    netboot));
207		initted = 1;
208	}
209
210	if (primarydev == NULL) {
211		if (!device_is_a(dev, "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			    dev->dv_xname));
221			return;
222		}
223	}
224
225	if (pcidev == NULL) {
226		if (!device_is_a(dev, "pci"))
227			return;
228		/*
229		 * Try to find primarydev anywhere in the ancestry.  This is
230		 * necessary if the PCI bus is hidden behind a bridge.
231		 */
232		while (parent) {
233			if (parent == primarydev)
234				break;
235			parent = device_parent(parent);
236		}
237		if (!parent)
238			return;
239		else {
240			struct pcibus_attach_args *pba = aux;
241
242			if ((b->slot / 1000) != pba->pba_bus)
243				return;
244
245			pcidev = dev;
246			DR_VERBOSE(printf("\npcidev = %s\n", dev->dv_xname));
247			return;
248		}
249	}
250
251	if (ctrlrdev == NULL) {
252		if (parent != pcidev)
253			return;
254		else {
255			struct pci_attach_args *pa = aux;
256			int slot;
257
258			slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
259			    pa->pa_device;
260			if (b->slot != slot)
261				return;
262
263			if (netboot) {
264				booted_device = dev;
265				DR_VERBOSE(printf("\nbooted_device = %s\n",
266				    dev->dv_xname));
267				found = 1;
268			} else {
269				ctrlrdev = dev;
270				DR_VERBOSE(printf("\nctrlrdev = %s\n",
271				    dev->dv_xname));
272			}
273			return;
274		}
275	}
276
277	if (!diskboot)
278		return;
279
280	if (device_is_a(dev, "sd") ||
281	    device_is_a(dev, "st") ||
282	    device_is_a(dev, "cd")) {
283		struct scsipibus_attach_args *sa = aux;
284		struct scsipi_periph *periph = sa->sa_periph;
285		int unit;
286
287		if (device_parent(parent) != ctrlrdev)
288			return;
289
290		unit = periph->periph_target * 100 + periph->periph_lun;
291		if (b->unit != unit)
292			return;
293		if (b->channel != periph->periph_channel->chan_channel)
294			return;
295
296		/* we've found it! */
297		booted_device = dev;
298		DR_VERBOSE(printf("\nbooted_device = %s\n", dev->dv_xname));
299		found = 1;
300	}
301
302	if (device_is_a(dev, "ld") && device_is_a(parent, "iop")) {
303		/*
304		 * Argh!  The attach arguments for ld devices is not
305		 * consistent, so each supported raid controller requires
306		 * different checks.
307		 */
308		struct iop_attach_args *iopa = aux;
309
310		if (parent != ctrlrdev)
311			return;
312
313		if (b->unit != iopa->ia_tid)
314			return;
315		/* we've found it! */
316		booted_device = dev;
317		DR_VERBOSE(printf("\nbooted_device = %s\n", dev->dv_xname));
318		found = 1;
319	}
320
321	if (device_is_a(dev, "ld") && device_is_a(parent, "mlx")) {
322		/*
323		 * Argh!  The attach arguments for ld devices is not
324		 * consistent, so each supported raid controller requires
325		 * different checks.
326		 */
327		struct mlx_attach_args *mlxa = aux;
328
329		if (parent != ctrlrdev)
330			return;
331
332		if (b->unit != mlxa->mlxa_unit)
333			return;
334		/* we've found it! */
335		booted_device = dev;
336		DR_VERBOSE(printf("\nbooted_device = %s\n", dev->dv_xname));
337		found = 1;
338	}
339
340	/*
341	 * Support to boot from IDE drives.
342	 */
343	if (device_is_a(dev, "wd")) {
344		struct ata_device *adev = aux;
345
346		if (!device_is_a(parent, "atabus"))
347			return;
348		if (device_parent(parent) != ctrlrdev)
349			return;
350
351		DR_VERBOSE(printf("\nAtapi info: drive: %d, channel %d\n",
352		    adev->adev_drv_data->drive, adev->adev_channel));
353		DR_VERBOSE(printf("Bootdev info: unit: %d, channel: %d\n",
354		    b->unit, b->channel));
355		if (b->unit != adev->adev_drv_data->drive ||
356		    b->channel != adev->adev_channel)
357			return;
358
359		/* we've found it! */
360		booted_device = dev;
361		DR_VERBOSE(printf("booted_device = %s\n", dev->dv_xname));
362		found = 1;
363	}
364}
365