Annotation of sys/arch/mvmeppc/dev/raven.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: raven.c,v 1.6 2004/05/14 20:38:32 miod Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2001 Steve Murphree, Jr.
! 5: *
! 6: * Redistribution and use in source and binary forms, with or without
! 7: * modification, are permitted provided that the following conditions
! 8: * are met:
! 9: * 1. Redistributions of source code must retain the above copyright
! 10: * notice, this list of conditions and the following disclaimer.
! 11: * 2. Redistributions in binary form must reproduce the above copyright
! 12: * notice, this list of conditions and the following disclaimer in the
! 13: * documentation and/or other materials provided with the distribution.
! 14: * 3. All advertising materials mentioning features or use of this software
! 15: * must display the following acknowledgement:
! 16: * This product includes software developed under OpenBSD for RTMX Inc
! 17: * by Per Fogelstrom, Opsycon AB.
! 18: * 4. 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 ``AS IS'' AND ANY EXPRESS
! 22: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
! 23: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
! 25: * 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:
! 35: /*
! 36: * Motorola 'Raven' ASIC driver.
! 37: */
! 38:
! 39: #include <sys/param.h>
! 40: #include <sys/systm.h>
! 41: #include <sys/kernel.h>
! 42: #include <sys/malloc.h>
! 43: #include <sys/device.h>
! 44: #include <sys/proc.h>
! 45: #include <uvm/uvm_extern.h>
! 46:
! 47: #include <machine/autoconf.h>
! 48:
! 49: #include <mvmeppc/dev/ravenreg.h>
! 50: #include <mvmeppc/dev/ravenvar.h>
! 51:
! 52: int raven_match(struct device *, void *, void *);
! 53: void raven_attach(struct device *, struct device *, void *);
! 54:
! 55: struct cfattach raven_ca = {
! 56: sizeof(struct raven_softc), raven_match, raven_attach,
! 57: };
! 58:
! 59: struct cfdriver raven_cd = {
! 60: NULL, "raven", DV_DULL,
! 61: };
! 62:
! 63: int
! 64: raven_match(struct device *parent, void *match, void *aux)
! 65: {
! 66: struct confargs *ca = aux;
! 67: void *va;
! 68: u_int32_t probe;
! 69:
! 70: if (strcmp(ca->ca_name, raven_cd.cd_name) != 0)
! 71: return 0;
! 72:
! 73: if ((va = mapiodev((paddr_t)RAVEN_BASE, RAVEN_SIZE)) == NULL)
! 74: return 0;
! 75:
! 76: /* check for a live address */
! 77: if (badaddr(va, 4) != 0) {
! 78: unmapiodev(va, RAVEN_SIZE);
! 79: return 0;
! 80: }
! 81:
! 82: /* now check and see if it's a raven ASIC */
! 83: probe = *(u_int32_t*)va;
! 84: unmapiodev((void *)va, RAVEN_SIZE);
! 85:
! 86: if (probe != RAVEN_MAGIC)
! 87: return 0;
! 88:
! 89: return 1;
! 90: }
! 91:
! 92: /* need to be global for mpcpcibr.c - XXX */
! 93: u_int8_t *ravenregs;
! 94:
! 95: void
! 96: raven_attach(struct device *parent, struct device *self, void *aux)
! 97: {
! 98: struct raven_softc *sc = (void *)self;
! 99:
! 100: /*
! 101: * Map Raven registers and MPCIC
! 102: *
! 103: * XXX steal them from devio_ex as well!
! 104: */
! 105: ravenregs = sc->sc_regs = mapiodev((paddr_t)RAVEN_BASE, RAVEN_SIZE);
! 106: if (sc->sc_regs == NULL) {
! 107: printf(": can't map registers!\n");
! 108: return;
! 109: }
! 110:
! 111: /* set system type */
! 112: system_type = MVME; /* We are a Motorola MVME SBC */
! 113:
! 114: printf(": version 0x%x\n", sc->sc_regs[RAVEN_REVID]);
! 115:
! 116: while (config_found(self, NULL, NULL))
! 117: ;
! 118: }
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