diff options
author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2001-04-11 06:47:33 +0000 |
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committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2001-04-11 06:47:33 +0000 |
commit | bb9b544d3deb8d6b913b2567e51e9bf25fbd4f60 (patch) | |
tree | 377e1d79548750b4e73c07f8ca38f358498adf35 /sys | |
parent | 1b0e276e102c876f3642457f2941228c1b93a722 (diff) |
driver for BCM5201/5202 PHY
Diffstat (limited to 'sys')
-rw-r--r-- | sys/dev/mii/bmtphy.c | 244 | ||||
-rw-r--r-- | sys/dev/mii/bmtphyreg.h | 33 | ||||
-rw-r--r-- | sys/dev/mii/files.mii | 6 |
3 files changed, 282 insertions, 1 deletions
diff --git a/sys/dev/mii/bmtphy.c b/sys/dev/mii/bmtphy.c new file mode 100644 index 00000000000..7a3a86a77bf --- /dev/null +++ b/sys/dev/mii/bmtphy.c @@ -0,0 +1,244 @@ +/* $OpenBSD: bmtphy.c,v 1.1 2001/04/11 06:47:31 deraadt Exp $ */ +/* $NetBSD: nsphy.c,v 1.25 2000/02/02 23:34:57 thorpej Exp $ */ + +/* + * driver for Broadcom BCM5201/5202 Mini-Theta ethernet 10/100 PHY + * Data Sheet available from Broadcom + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/device.h> +#include <sys/malloc.h> +#include <sys/socket.h> +#include <sys/errno.h> + +#include <net/if.h> +#include <net/if_media.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> +#include <dev/mii/miidevs.h> + +#include <dev/mii/bmtphyreg.h> + +int bmtphymatch __P((struct device *, void *, void *)); +void bmtphyattach __P((struct device *, struct device *, void *)); + +struct cfattach bmtphy_ca = { + sizeof(struct mii_softc), bmtphymatch, bmtphyattach, mii_phy_detach, + mii_phy_activate +}; + +struct cfdriver bmtphy_cd = { + NULL, "bmtphy", DV_DULL +}; + +int bmtphy_service __P((struct mii_softc *, struct mii_data *, int)); +void bmtphy_status __P((struct mii_softc *)); +void bmtphy_reset __P((struct mii_softc *)); + +int +bmtphymatch(parent, match, aux) + struct device *parent; + void *match; + void *aux; +{ + struct mii_attach_args *ma = aux; + + if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_BROADCOM && + MII_MODEL(ma->mii_id2) == MII_MODEL_BROADCOM_BCM5201) + return (10); + + return (0); +} + +void +bmtphyattach(parent, self, aux) + struct device *parent; + struct device *self; + void *aux; +{ + struct mii_softc *sc = (struct mii_softc *)self; + struct mii_attach_args *ma = aux; + struct mii_data *mii = ma->mii_data; + + printf(": %s, rev. %d\n", MII_STR_BROADCOM_BCM5201, + MII_REV(ma->mii_id2)); + + sc->mii_inst = mii->mii_instance; + sc->mii_phy = ma->mii_phyno; + sc->mii_service = bmtphy_service; + sc->mii_status = bmtphy_status; + sc->mii_pdata = mii; + sc->mii_flags = mii->mii_flags; + + bmtphy_reset(sc); + + sc->mii_capabilities = + PHY_READ(sc, MII_BMSR) & ma->mii_capmask; + if (sc->mii_capabilities & BMSR_MEDIAMASK) + mii_phy_add_media(sc); +} + +int +bmtphy_service(sc, mii, cmd) + struct mii_softc *sc; + struct mii_data *mii; + int cmd; +{ + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int reg; + + if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) + return (ENXIO); + + switch (cmd) { + case MII_POLLSTAT: + /* + * If we're not polling our PHY instance, just return. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) + return (0); + break; + + case MII_MEDIACHG: + /* + * If the media indicates a different PHY instance, + * isolate ourselves. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) { + reg = PHY_READ(sc, MII_BMCR); + PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); + return (0); + } + + /* + * If the interface is not up, don't do anything. + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + break; + + mii_phy_setmedia(sc); + break; + + case MII_TICK: + /* + * If we're not currently selected, just return. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) + return (0); + + /* + * Only used for autonegotiation. + */ + if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) + return (0); + + /* + * Is the interface even up? + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + return (0); + + /* + * Check to see if we have link. If we do, we don't + * need to restart the autonegotiation process. Read + * the BMSR twice in case it's latched. + */ + reg = PHY_READ(sc, MII_BMSR) | + PHY_READ(sc, MII_BMSR); + if (reg & BMSR_LINK) + return (0); + + /* + * Only retry autonegotiation every 5 seconds. + */ + if (++sc->mii_ticks != 5) + return (0); + + sc->mii_ticks = 0; + bmtphy_reset(sc); + if (mii_phy_auto(sc, 0) == EJUSTRETURN) + return (0); + break; + + case MII_DOWN: + mii_phy_down(sc); + return (0); + } + + /* Update the media status. */ + mii_phy_status(sc); + + /* Callback if something changed. */ + mii_phy_update(sc, cmd); + return (0); +} + +void +bmtphy_status(sc) + struct mii_softc *sc; +{ + struct mii_data *mii = sc->mii_pdata; + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int bmsr, bmcr, auxc; + + mii->mii_media_status = IFM_AVALID; + mii->mii_media_active = IFM_ETHER; + + bmsr = PHY_READ(sc, MII_BMSR) | + PHY_READ(sc, MII_BMSR); + if (bmsr & BMSR_LINK) + mii->mii_media_status |= IFM_ACTIVE; + + bmcr = PHY_READ(sc, MII_BMCR); + if (bmcr & BMCR_ISO) { + mii->mii_media_active |= IFM_NONE; + mii->mii_media_status = 0; + return; + } + + if (bmcr & BMCR_LOOP) + mii->mii_media_active |= IFM_LOOP; + + if (bmcr & BMCR_AUTOEN) { + /* + * The later are only valid if autonegotiation + * has completed (or it's disabled). + */ + if ((bmsr & BMSR_ACOMP) == 0) { + /* Erg, still trying, I guess... */ + mii->mii_media_active |= IFM_NONE; + return; + } + + auxc = PHY_READ(sc, MII_BMTPHY_AUXC); + if (auxc & AUXC_SP100) + mii->mii_media_active |= IFM_100_TX; + else + mii->mii_media_active |= IFM_10_T; + if (auxc & AUXC_FDX) + mii->mii_media_active |= IFM_FDX; + + } else + mii->mii_media_active = ife->ifm_media; +} + +void +bmtphy_reset(sc) + struct mii_softc *sc; +{ + int anar; + + mii_phy_reset(sc); + + anar = PHY_READ(sc, MII_ANAR); + anar |= BMSR_MEDIA_TO_ANAR(PHY_READ(sc, MII_BMSR)); + PHY_WRITE(sc, MII_ANAR, anar); + + /* Chip resets with FDX bit not set */ + PHY_WRITE(sc, MII_BMCR, PHY_READ(sc, MII_BMCR) | + BMCR_S100|BMCR_AUTOEN|BMCR_STARTNEG|BMCR_FDX); +} diff --git a/sys/dev/mii/bmtphyreg.h b/sys/dev/mii/bmtphyreg.h new file mode 100644 index 00000000000..e0824e6fe9f --- /dev/null +++ b/sys/dev/mii/bmtphyreg.h @@ -0,0 +1,33 @@ +/* $OpenBSD: bmtphyreg.h,v 1.1 2001/04/11 06:47:31 deraadt Exp $ */ +/* $NetBSD: bmtphyreg.h,v 1.1 1998/08/10 23:58:39 thorpej Exp $ */ + +#ifndef _DEV_MII_BMTPHYREG_H_ +#define _DEV_MII_BMTPHYREG_H_ + +#define MII_BMTPHY_100RCVERR 0x12 /* 100base-X rcv error counter */ + +#define MII_BMTPHY_FCSCR 0x13 /* 100base-X false carrier counter */ + +#define MII_BMTPHY_100DISC 0x14 /* 100base-X rcv error counter */ + +#define MII_BMTPHY_TXEQUAL 0x15 /* TX equalizer coefficient */ + +#define MII_BMTPHY_TXEQCTRL 0x16 /* TX equalizer control */ + +#define MII_BMTPHY_PTEST 0x17 /* PTEST */ + +#define MII_BMTPHY_AUXC 0x18 /* Aux control/status */ +#define AUXC_FORCELINK 0x4000 /* */ +#define AUXC_AUTONEG 0x0010 /* */ +#define AUXC_FORCE100 0x0004 /* Force 100 indicator */ +#define AUXC_SP100 0x0002 /* SP100 indicator */ +#define AUXC_FDX 0x0001 /* Full duplex indicator */ + +#define MII_BMTPHY_AUXS 0x19 /* Aux status summary */ +#define AUXS_SP100 0x0008 /* */ +#define AUXS_LINKSTATUS 0x0004 /* */ + +#define MII_BMTPHY_AUX2 0x1b /* aux mode 2 */ +#define AUX2_TWOLNKLED 0x0004 /* Two link led mode */ + +#endif /* _DEV_MII_BMTPHYREG_H_ */ diff --git a/sys/dev/mii/files.mii b/sys/dev/mii/files.mii index d92db511918..a343edead21 100644 --- a/sys/dev/mii/files.mii +++ b/sys/dev/mii/files.mii @@ -1,4 +1,4 @@ -# $OpenBSD: files.mii,v 1.14 2000/10/17 19:10:31 jason Exp $ +# $OpenBSD: files.mii,v 1.15 2001/04/11 06:47:31 deraadt Exp $ # $NetBSD: files.mii,v 1.13 1998/11/05 00:36:48 thorpej Exp $ file dev/mii/mii.c mii @@ -73,6 +73,10 @@ device dcphy: mii_phy attach dcphy at mii file dev/mii/dcphy.c dcphy +device bmtphy: mii_phy +attach bmtphy at mii +file dev/mii/bmtphy.c bmtphy + device brgphy: mii_phy attach brgphy at mii file dev/mii/brgphy.c brgphy |