Annotation of sys/arch/mvmeppc/dev/mainbus.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: mainbus.c,v 1.10 2004/11/18 16:10:43 miod Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1994, 1995 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/param.h>
! 31: #include <sys/systm.h>
! 32: #include <sys/device.h>
! 33: #include <sys/reboot.h>
! 34:
! 35: #include <machine/autoconf.h>
! 36:
! 37: struct mainbus_softc {
! 38: struct device sc_dv;
! 39: struct bushook sc_bus;
! 40: };
! 41:
! 42: void mbattach(struct device *, struct device *, void *);
! 43: int mbmatch(struct device *, void *, void *);
! 44: int mbprint(void *, const char *);
! 45:
! 46: struct cfattach mainbus_ca = {
! 47: sizeof(struct mainbus_softc), mbmatch, mbattach
! 48: };
! 49: struct cfdriver mainbus_cd = {
! 50: NULL, "mainbus", DV_DULL
! 51: };
! 52:
! 53: int
! 54: mbmatch(struct device *parent, void *cfdata, void *aux)
! 55: {
! 56: return (1);
! 57: }
! 58:
! 59: void
! 60: mbattach(struct device *parent, struct device *self, void *aux)
! 61: {
! 62: struct mainbus_softc *sc = (struct mainbus_softc *)self;
! 63: struct confargs nca;
! 64: u_int8_t systype;
! 65: int cpu;
! 66: extern vaddr_t isaspace_va;
! 67:
! 68: /* Pretty print the system type */
! 69: printf(": ");
! 70: switch ((systype = *(u_int8_t *)(isaspace_va + MVME_STATUS_REG))) {
! 71: default:
! 72: printf("unknown system type %x", systype);
! 73: break;
! 74: case MVMETYPE_RESERVED:
! 75: /* if you ever have this one, please contact me -- miod */
! 76: printf("Dahu MVME");
! 77: break;
! 78: case MVMETYPE_2600_712:
! 79: cpu = ppc_mfpvr() >> 16;
! 80: if (cpu == PPC_CPU_MPC750)
! 81: printf("MVME2700 (712-compatible)");
! 82: else
! 83: printf("MVME2600 (712-compatible)");
! 84: break;
! 85: case MVMETYPE_2600_761:
! 86: cpu = ppc_mfpvr() >> 16;
! 87: if (cpu == PPC_CPU_MPC750)
! 88: printf("MVME2700 (761-compatible)");
! 89: else
! 90: printf("MVME2600 (761-compatible)");
! 91: break;
! 92: case MVMETYPE_3600_712:
! 93: printf("MVME3600 or MVME4600 (712-compatible)");
! 94: break;
! 95: case MVMETYPE_3600_761:
! 96: printf("MVME3600 or MVME4600 (761-compatible)");
! 97: break;
! 98: case MVMETYPE_1600:
! 99: printf("MVME1600");
! 100: break;
! 101: }
! 102: printf("\n");
! 103:
! 104: sc->sc_bus.bh_dv = (struct device *)sc;
! 105: sc->sc_bus.bh_type = BUS_MAIN;
! 106: sc->sc_bus.bh_intr_establish = NULL;
! 107: sc->sc_bus.bh_intr_disestablish = NULL;
! 108: sc->sc_bus.bh_matchname = NULL;
! 109:
! 110: /*
! 111: * Try to find and attach all of the CPUs in the machine.
! 112: * Right now only one CPU is supported, so this is simple.
! 113: * Need to change for real MVME4600 support.
! 114: */
! 115:
! 116: nca.ca_name = "cpu";
! 117: nca.ca_bus = &sc->sc_bus;
! 118: config_found(self, &nca, mbprint);
! 119:
! 120: /*
! 121: * Attach the BUG terminal services if necessary.
! 122: */
! 123: nca.ca_name = "bugtty";
! 124: nca.ca_bus = &sc->sc_bus;
! 125: config_found(self, &nca, mbprint);
! 126:
! 127: /*
! 128: * Find and attach the PCI Northbridge. It will find and attach
! 129: * everything.
! 130: */
! 131: nca.ca_name = "raven";
! 132: nca.ca_bus = &sc->sc_bus;
! 133: config_found(self, &nca, mbprint);
! 134: }
! 135:
! 136: int
! 137: mbprint(void *aux, const char *pnp)
! 138: {
! 139: if (pnp)
! 140: return (QUIET);
! 141: return (UNCONF);
! 142: }
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