diff options
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/mac68k/dev/if_sn_obio.c | 76 |
1 files changed, 71 insertions, 5 deletions
diff --git a/sys/arch/mac68k/dev/if_sn_obio.c b/sys/arch/mac68k/dev/if_sn_obio.c index 0384337c402..6d691a87fe7 100644 --- a/sys/arch/mac68k/dev/if_sn_obio.c +++ b/sys/arch/mac68k/dev/if_sn_obio.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_sn_obio.c,v 1.6 1997/04/04 14:48:56 briggs Exp $ */ +/* $OpenBSD: if_sn_obio.c,v 1.7 1997/04/06 01:02:13 briggs Exp $ */ /* * Copyright (C) 1997 Allen Briggs @@ -56,7 +56,8 @@ static int sn_obio_match __P((struct device *, void *, void *)); static void sn_obio_attach __P((struct device *, struct device *, void *)); -static void sn_obio_getaddr __P((struct sn_softc *)); +static int sn_obio_getaddr __P((struct sn_softc *)); +static int sn_obio_getaddr_kludge __P((struct sn_softc *)); struct cfattach sn_obio_ca = { sizeof(struct sn_softc), sn_obio_match, sn_obio_attach @@ -114,6 +115,7 @@ sn_obio_attach(parent, self, aux) } sc->sc_regt = oa->oa_tag; + if (bus_space_map(sc->sc_regt, SONIC_REG_BASE, SN_REGSIZE, 0, &sc->sc_regh)) { panic("failed to map space for SONIC regs.\n"); @@ -121,13 +123,20 @@ sn_obio_attach(parent, self, aux) sc->slotno = 9; - sn_obio_getaddr(sc); - /* regs are addressed as words, big-endian. */ for (i = 0; i < SN_NREGS; i++) { sc->sc_reg_map[i] = (bus_size_t)((i * 4) + 2); } + if (sn_obio_getaddr(sc)) { + printf("Failed to get MAC address. Trying kludge.\n"); + if (sn_obio_getaddr_kludge(sc)) { + printf("Kludge failed, too. Attachment failed.\n"); + bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE); + return; + } + } + /* snsetup returns 1 if something fails */ if (snsetup(sc)) { bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE); @@ -140,7 +149,7 @@ sn_obio_attach(parent, self, aux) static u_char bbr4[] = {0,8,4,12,2,10,6,14,1,9,5,13,3,11,7,15}; #define bbr(v) ((bbr4[(v)&0xf] << 4) | bbr4[((v)>>4) & 0xf]) -static void +static int sn_obio_getaddr(sc) struct sn_softc *sc; { @@ -152,6 +161,11 @@ sn_obio_getaddr(sc) panic("failed to map space to read SONIC address.\n"); } + if (bus_space_bad_addr(sc->sc_regt, bsh, 0, 1)) { + bus_space_unmap(sc->sc_regt, bsh, NBPG); + return -1; + } + /* * For reasons known only to Apple, MAC addresses in the ethernet * PROM are stored in Token Ring (IEEE 802.5) format, that is @@ -194,4 +208,56 @@ sn_obio_getaddr(sc) } bus_space_unmap(sc->sc_regt, bsh, NBPG); + + return 0; +} + +/* + * Assume that the SONIC was initialized in MacOS. This should go away + * when we can properly get the MAC address on the PBs. + */ +static int +sn_obio_getaddr_kludge(sc) + struct sn_softc *sc; +{ + int i, ors=0; + + /* Shut down NIC */ + NIC_PUT(sc, SNR_CR, CR_RST); + wbflush(); + NIC_PUT(sc, SNR_CR, CR_STP); + wbflush(); + NIC_PUT(sc, SNR_IMR, 0); + wbflush(); + NIC_PUT(sc, SNR_ISR, ISR_ALL); + wbflush(); + + NIC_PUT(sc, SNR_CEP, 15); /* For some reason, Apple fills top first. */ + wbflush(); + i = NIC_GET(sc, SNR_CAP2); + wbflush(); + + ors |= i; + sc->sc_enaddr[5] = i >> 8; + sc->sc_enaddr[4] = i; + + i = NIC_GET(sc, SNR_CAP1); + wbflush(); + + ors |= i; + sc->sc_enaddr[3] = i >> 8; + sc->sc_enaddr[2] = i; + + i = NIC_GET(sc, SNR_CAP0); + wbflush(); + + ors |= i; + sc->sc_enaddr[1] = i >> 8; + sc->sc_enaddr[0] = i; + + NIC_PUT(sc, SNR_CR, 0); + wbflush(); + + if (ors == 0) return -1; + return (0); } |