Annotation of sys/arch/alpha/alpha/dec_kn300.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: dec_kn300.c,v 1.2 2007/03/21 22:10:57 martin Exp $ */
! 2: /* $NetBSD: dec_kn300.c,v 1.34 2007/03/04 15:18:10 yamt Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1998 by Matthew Jacob
! 6: * NASA AMES Research Center.
! 7: * All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice immediately at the beginning of the file, without modification,
! 14: * this list of conditions, and the following disclaimer.
! 15: * 2. Redistributions in binary form must reproduce the above copyright
! 16: * notice, this list of conditions and the following disclaimer in the
! 17: * documentation and/or other materials provided with the distribution.
! 18: * 3. The name of the author may not be used to endorse or promote products
! 19: * derived from this software without specific prior written permission.
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
! 25: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 31: * SUCH DAMAGE.
! 32: */
! 33:
! 34: #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
! 35: #include <sys/param.h>
! 36: #include <sys/systm.h>
! 37: #include <sys/device.h>
! 38: #include <sys/termios.h>
! 39: #include <sys/conf.h>
! 40: #include <dev/cons.h>
! 41:
! 42: #include <machine/rpb.h>
! 43: #include <machine/autoconf.h>
! 44: #include <machine/frame.h>
! 45: #include <machine/cpuconf.h>
! 46:
! 47: #include <dev/ic/comreg.h>
! 48: #include <dev/ic/comvar.h>
! 49:
! 50: #include <dev/isa/isareg.h>
! 51: #include <dev/isa/isavar.h>
! 52: #include <dev/ic/i8042reg.h>
! 53: #include <dev/ic/pckbcvar.h>
! 54: #include <dev/pci/pcireg.h>
! 55: #include <dev/pci/pcivar.h>
! 56:
! 57: #include <alpha/mcbus/mcbusreg.h>
! 58: #include <alpha/mcbus/mcbusvar.h>
! 59: #include <alpha/pci/mcpciareg.h>
! 60: #include <alpha/pci/mcpciavar.h>
! 61: #include <alpha/pci/pci_kn300.h>
! 62:
! 63: #include <scsi/scsi_all.h>
! 64: #include <scsi/scsiconf.h>
! 65:
! 66: #include "pckbd.h"
! 67:
! 68: #ifndef CONSPEED
! 69: #define CONSPEED TTYDEF_SPEED
! 70: #endif
! 71: static int comcnrate = CONSPEED;
! 72:
! 73: #ifdef DEBUG
! 74: int bootdev_debug;
! 75: #define DPRINTF(x) if (bootdev_debug) printf x
! 76: #else
! 77: #define DPRINTF(x)
! 78: #endif
! 79:
! 80: void dec_kn300_init (void);
! 81: void dec_kn300_cons_init (void);
! 82: static void dec_kn300_device_register (struct device *, void *);
! 83:
! 84: #ifdef KGDB
! 85: #include <machine/db_machdep.h>
! 86:
! 87: static const char *kgdb_devlist[] = {
! 88: "com",
! 89: NULL,
! 90: };
! 91: #endif /* KGDB */
! 92:
! 93: #define ALPHASERVER_4100 "AlphaServer 4100"
! 94:
! 95: const struct alpha_variation_table dec_kn300_variations[] = {
! 96: { 0, ALPHASERVER_4100 },
! 97: { 0, NULL },
! 98: };
! 99:
! 100: void
! 101: dec_kn300_init()
! 102: {
! 103: u_int64_t variation;
! 104: int cachesize;
! 105:
! 106: platform.family = ALPHASERVER_4100;
! 107:
! 108: if ((platform.model = alpha_dsr_sysname()) == NULL) {
! 109: variation = hwrpb->rpb_variation & SV_ST_MASK;
! 110: if ((platform.model = alpha_variation_name(variation,
! 111: dec_kn300_variations)) == NULL)
! 112: platform.model = alpha_unknown_sysname();
! 113: }
! 114:
! 115: platform.iobus = "mcbus";
! 116: platform.cons_init = dec_kn300_cons_init;
! 117: platform.device_register = dec_kn300_device_register;
! 118:
! 119: /*
! 120: * Determine B-cache size by looking at the primary (console)
! 121: * MCPCIA's WHOAMI register.
! 122: */
! 123: mcpcia_init();
! 124:
! 125: if (mcbus_primary.mcbus_valid) {
! 126: switch (mcbus_primary.mcbus_bcache) {
! 127: default:
! 128: case CPU_BCache_0MB:
! 129: /* No B-cache or invalid; default to 1MB. */
! 130: /* FALLTHROUGH */
! 131:
! 132: case CPU_BCache_1MB:
! 133: cachesize = (1 * 1024 * 1024);
! 134: break;
! 135:
! 136: case CPU_BCache_2MB:
! 137: cachesize = (2 * 1024 * 1024);
! 138: break;
! 139:
! 140: case CPU_BCache_4MB:
! 141: cachesize = (4 * 1024 * 1024);
! 142: break;
! 143: }
! 144: } else {
! 145: /* Default to 1MB. */
! 146: cachesize = (1 * 1024 * 1024);
! 147: }
! 148: }
! 149:
! 150: void
! 151: dec_kn300_cons_init()
! 152: {
! 153: struct ctb *ctb;
! 154: struct mcpcia_config *ccp;
! 155: extern struct mcpcia_config mcpcia_console_configuration;
! 156:
! 157: ccp = &mcpcia_console_configuration;
! 158: /* It's already initialized. */
! 159:
! 160: ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
! 161:
! 162: switch (ctb->ctb_term_type) {
! 163: case CTB_PRINTERPORT:
! 164: /* serial console ... */
! 165: /*
! 166: * Delay to allow PROM putchars to complete.
! 167: * FIFO depth * character time,
! 168: * character time = (1000000 / (defaultrate / 10))
! 169: */
! 170: DELAY(160000000 / comcnrate);
! 171: if (comcnattach(&ccp->cc_iot, 0x3f8, comcnrate,
! 172: COM_FREQ,
! 173: (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8)) {
! 174: panic("can't init serial console");
! 175:
! 176: }
! 177: break;
! 178:
! 179: case CTB_GRAPHICS:
! 180: #if NPCKBD > 0
! 181: /* display console ... */
! 182: /* XXX */
! 183: (void) pckbc_cnattach(&ccp->cc_iot, IO_KBD, KBCMDP,
! 184: PCKBC_KBD_SLOT);
! 185:
! 186: if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
! 187: CTB_TURBOSLOT_TYPE_ISA)
! 188: isa_display_console(&ccp->cc_iot, &ccp->cc_memt);
! 189: else
! 190: pci_display_console(&ccp->cc_iot, &ccp->cc_memt,
! 191: &ccp->cc_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
! 192: CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
! 193: #else
! 194: panic("not configured to use display && keyboard console");
! 195: #endif
! 196: break;
! 197:
! 198: default:
! 199: printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
! 200: printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
! 201:
! 202: panic("consinit: unknown console type %ld",
! 203: ctb->ctb_term_type);
! 204: }
! 205: #ifdef KGDB
! 206: /* Attach the KGDB device. */
! 207: alpha_kgdb_init(kgdb_devlist, &ccp->cc_iot);
! 208: #endif /* KGDB */
! 209: }
! 210:
! 211: static void
! 212: dec_kn300_device_register(dev, aux)
! 213: struct device *dev;
! 214: void *aux;
! 215: {
! 216: static int found, initted, diskboot, netboot;
! 217: static struct device *primarydev, *pcidev, *ctrlrdev;
! 218: struct bootdev_data *b = bootdev_data;
! 219: struct device *parent = dev->dv_parent;
! 220: struct cfdata *cf = dev->dv_cfdata;
! 221: struct cfdriver *cd = cf->cf_driver;
! 222:
! 223: if (found)
! 224: return;
! 225:
! 226: if (!initted) {
! 227: diskboot = (strncasecmp(b->protocol, "SCSI", 4) == 0);
! 228: netboot = (strncasecmp(b->protocol, "BOOTP", 5) == 0) ||
! 229: (strncasecmp(b->protocol, "MOP", 3) == 0);
! 230:
! 231: DPRINTF(("proto:%s bus:%d slot:%d chan:%d", b->protocol,
! 232: b->bus, b->slot, b->channel));
! 233: if (b->remote_address)
! 234: printf(" remote_addr:%s", b->remote_address);
! 235: DPRINTF((" un:%d bdt:%d", b->unit, b->boot_dev_type));
! 236: if (b->ctrl_dev_type)
! 237: DPRINTF((" cdt:%s\n", b->ctrl_dev_type));
! 238: else
! 239: DPRINTF(("\n"));
! 240: DPRINTF(("diskboot = %d, netboot = %d\n", diskboot, netboot));
! 241: initted = 1;
! 242: }
! 243:
! 244: if (primarydev == NULL) {
! 245: if (strcmp(cd->cd_name, "mcpcia"))
! 246: return;
! 247: else {
! 248: struct mcbus_dev_attach_args *ma = aux;
! 249:
! 250: if (b->bus != ma->ma_mid - 4)
! 251: return;
! 252: primarydev = dev;
! 253: DPRINTF(("\nprimarydev = %s\n", dev->dv_xname));
! 254: return;
! 255: }
! 256: }
! 257:
! 258: if (pcidev == NULL) {
! 259: if (strcmp(cd->cd_name, "pci"))
! 260: return;
! 261: /*
! 262: * Try to find primarydev anywhere in the ancestry. This is
! 263: * necessary if the PCI bus is hidden behind a bridge.
! 264: */
! 265: else {
! 266: struct pcibus_attach_args *pba = aux;
! 267:
! 268: if ((b->slot / 1000) != pba->pba_bus)
! 269: return;
! 270:
! 271: pcidev = dev;
! 272: DPRINTF(("\npcidev = %s\n", dev->dv_xname));
! 273: return;
! 274: }
! 275: }
! 276:
! 277: if (ctrlrdev == NULL) {
! 278: if (parent != pcidev)
! 279: return;
! 280: else {
! 281: struct pci_attach_args *pa = aux;
! 282: int slot;
! 283:
! 284: slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
! 285: pa->pa_device;
! 286: if (b->slot != slot)
! 287: return;
! 288:
! 289: if (netboot) {
! 290: booted_device = dev;
! 291: DPRINTF(("\nbooted_device = %s\n", dev->dv_xname));
! 292: found = 1;
! 293: } else {
! 294: ctrlrdev = dev;
! 295: DPRINTF(("\nctrlrdev = %s\n", dev->dv_xname));
! 296: }
! 297: return;
! 298: }
! 299: }
! 300:
! 301: if (!diskboot)
! 302: return;
! 303:
! 304: if (strcmp(cd->cd_name, "sd") ||
! 305: strcmp(cd->cd_name, "st") ||
! 306: strcmp(cd->cd_name, "cd")) {
! 307: struct scsi_attach_args *sa = aux;
! 308: struct scsi_link *periph = sa->sa_sc_link;
! 309: int unit;
! 310:
! 311: if (parent->dv_parent != ctrlrdev)
! 312: return;
! 313:
! 314: unit = periph->target * 100 + periph->lun;
! 315: if (b->unit != unit)
! 316: return;
! 317:
! 318: /* we've found it! */
! 319: booted_device = dev;
! 320: DPRINTF(("\nbooted_device = %s\n", dev->dv_xname));
! 321: found = 1;
! 322: }
! 323: }
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