xref: /netbsd/sys/arch/alpha/alpha/dec_3000_300.c (revision bf9ec67e)
1 /* $NetBSD: dec_3000_300.c,v 1.34 2001/04/25 17:53:04 bouyer Exp $ */
2 
3 /*
4  * Copyright (c) 1995, 1996 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 /*
31  * Additional Copyright (c) 1997 by Matthew Jacob for NASA/Ames Research Center
32  */
33 
34 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
35 
36 __KERNEL_RCSID(0, "$NetBSD: dec_3000_300.c,v 1.34 2001/04/25 17:53:04 bouyer Exp $");
37 
38 #include "opt_new_scc_driver.h"
39 
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/device.h>
43 #include <sys/termios.h>
44 
45 #include <machine/rpb.h>
46 #include <machine/autoconf.h>
47 #include <machine/conf.h>
48 
49 #include <dev/tc/tcvar.h>
50 #include <dev/tc/tcdsvar.h>
51 #include <alpha/tc/tc_3000_300.h>
52 #ifndef NEW_SCC_DRIVER
53 #include <alpha/tc/sccvar.h>
54 #endif
55 
56 #include <machine/z8530var.h>
57 #include <dev/tc/zs_ioasicvar.h>
58 
59 #include <dev/scsipi/scsi_all.h>
60 #include <dev/scsipi/scsipi_all.h>
61 #include <dev/scsipi/scsiconf.h>
62 
63 #include "wsdisplay.h"
64 
65 void dec_3000_300_init __P((void));
66 static void dec_3000_300_cons_init __P((void));
67 static void dec_3000_300_device_register __P((struct device *, void *));
68 
69 const struct alpha_variation_table dec_3000_300_variations[] = {
70 	{ SV_ST_PELICAN, "DEC 3000/300 (\"Pelican\")" },
71 	{ SV_ST_PELICA, "DEC 3000/300L (\"Pelica\")" },
72 	{ SV_ST_PELICANPLUS, "DEC 3000/300X (\"Pelican+\")" },
73 	{ SV_ST_PELICAPLUS, "DEC 3000/300LX (\"Pelica+\")" },
74 	{ 0, NULL },
75 };
76 
77 void
78 dec_3000_300_init()
79 {
80 	u_int64_t variation;
81 
82 	platform.family = "DEC 3000/300 (\"Pelican\")";
83 
84 	if ((platform.model = alpha_dsr_sysname()) == NULL) {
85 		variation = hwrpb->rpb_variation & SV_ST_MASK;
86 		if ((platform.model = alpha_variation_name(variation,
87 		    dec_3000_300_variations)) == NULL)
88 			platform.model = alpha_unknown_sysname();
89 	}
90 
91 	platform.iobus = "tcasic";
92 	platform.cons_init = dec_3000_300_cons_init;
93 	platform.device_register = dec_3000_300_device_register;
94 }
95 
96 static void
97 dec_3000_300_cons_init()
98 {
99 	struct ctb *ctb;
100 
101 	ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
102 
103 #ifndef NEW_SCC_DRIVER
104 	switch (ctb->ctb_term_type) {
105 	case CTB_GRAPHICS:
106 		alpha_donot_kludge_scc = 1;
107 		return;
108 	case CTB_PRINTERPORT:
109 		return;
110 	default:
111 		goto badconsole;
112 	}
113 #else
114 	switch (ctb->ctb_term_type) {
115 	case CTB_GRAPHICS:
116 #if NWSDISPLAY > 0
117 		/* display console ... */
118 		if (zs_ioasic_lk201_cnattach(0x1a0000000, 0x00180000, 0) == 0 &&
119 		    tc_3000_300_fb_cnattach(
120 		     CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot)) == 0) {
121 			break;
122 		}
123 #endif
124 		printf("consinit: Unable to init console on keyboard and ");
125 		printf("TURBOchannel slot 0x%lx.\n", ctb->ctb_turboslot);
126 		printf("Using serial console.\n");
127 		/* FALLTHROUGH */
128 
129 	case CTB_PRINTERPORT:
130 		/* serial console ... */
131 		/*
132 		 * XXX This could stand some cleanup...
133 		 */
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 / 9600);	/* XXX */
141 
142 			/*
143 			 * Console is channel B of the first SCC.
144 			 * XXX Should use ctb_line_off to get the
145 			 * XXX line parameters.
146 			 */
147 			zs_ioasic_cnattach(0x1a0000000, 0x00100000, 1);
148 			break;
149 		}
150 
151 	default:
152 		goto badconsole;
153 	}
154 #endif
155 	return;
156 badconsole:
157 	printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
158 	printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
159 
160 	panic("consinit: unknown console type %lu\n",
161 	    ctb->ctb_term_type);
162 }
163 
164 static void
165 dec_3000_300_device_register(dev, aux)
166 	struct device *dev;
167 	void *aux;
168 {
169 	static int found, initted, scsiboot, netboot;
170 	static struct device *scsidev;
171 	static struct device *tcdsdev;
172 	struct bootdev_data *b = bootdev_data;
173 	struct device *parent = dev->dv_parent;
174 	struct cfdata *cf = dev->dv_cfdata;
175 	struct cfdriver *cd = cf->cf_driver;
176 
177 	if (found)
178 		return;
179 
180 	if (!initted) {
181 		scsiboot = (strcmp(b->protocol, "SCSI") == 0);
182 		netboot = (strcmp(b->protocol, "BOOTP") == 0) ||
183 		    (strcmp(b->protocol, "MOP") == 0);
184 #if 0
185 		printf("scsiboot = %d, netboot = %d\n", scsiboot, netboot);
186 #endif
187 		initted = 1;
188 	}
189 
190 	/*
191 	 * for scsi boot, we look for "tcds", make sure it has the
192 	 * right slot number, then find the "asc" on this tcds that
193 	 * as the right channel.  then we find the actual scsi
194 	 * device we came from.  note: no SCSI LUN support (yet).
195 	 */
196 	if (scsiboot && (strcmp(cd->cd_name, "tcds") == 0)) {
197 		struct tc_attach_args *tcargs = aux;
198 
199 		if (b->slot != tcargs->ta_slot)
200 			return;
201 
202 		tcdsdev = dev;
203 #if 0
204 		printf("\ntcdsdev = %s\n", dev->dv_xname);
205 #endif
206 	}
207 	if (scsiboot && tcdsdev &&
208 	    (strcmp(cd->cd_name, "asc") == 0)) {
209 		struct tcdsdev_attach_args *ta = aux;
210 
211 		if (parent != (struct device *)tcdsdev)
212 			return;
213 
214 		if (ta->tcdsda_chip != b->channel)
215 			return;
216 
217 		scsidev = dev;
218 #if 0
219 		printf("\nscsidev = %s\n", dev->dv_xname);
220 #endif
221 	}
222 
223 	if (scsiboot && scsidev &&
224 	    (strcmp(cd->cd_name, "sd") == 0 ||
225 	     strcmp(cd->cd_name, "st") == 0 ||
226 	     strcmp(cd->cd_name, "cd") == 0)) {
227 		struct scsipibus_attach_args *sa = aux;
228 
229 		if (parent->dv_parent != scsidev)
230 			return;
231 
232 		if (b->unit / 100 != sa->sa_periph->periph_target)
233 			return;
234 
235 		/* XXX LUN! */
236 
237 		switch (b->boot_dev_type) {
238 		case 0:
239 			if (strcmp(cd->cd_name, "sd") &&
240 			    strcmp(cd->cd_name, "cd"))
241 				return;
242 			break;
243 		case 1:
244 			if (strcmp(cd->cd_name, "st"))
245 				return;
246 			break;
247 		default:
248 			return;
249 		}
250 
251 		/* we've found it! */
252 		booted_device = dev;
253 #if 0
254 		printf("\nbooted_device = %s\n", booted_device->dv_xname);
255 #endif
256 		found = 1;
257 	}
258 
259 	if (netboot) {
260                 if (b->slot == 5 && strcmp(cd->cd_name, "le") == 0 &&
261 		    strcmp(parent->dv_cfdata->cf_driver->cd_name, "ioasic")
262 		     == 0) {
263 			/*
264 			 * no need to check ioasic_attach_args, since only
265 			 * one le on ioasic.
266 			 */
267 
268 			booted_device = dev;
269 #if 0
270 			printf("\nbooted_device = %s\n", booted_device->dv_xname);
271 #endif
272 			found = 1;
273 			return;
274 		}
275 
276 		/*
277 		 * XXX GENERIC SUPPORT FOR TC NETWORK BOARDS
278 		 */
279         }
280 }
281