diff options
| author | Brad Smith <brad@cvs.openbsd.org> | 2006-07-22 04:45:14 +0000 |
|---|---|---|
| committer | Brad Smith <brad@cvs.openbsd.org> | 2006-07-22 04:45:14 +0000 |
| commit | 14a623e51caad6f1d88881b63f8c3efabe52bc81 (patch) | |
| tree | 27b44e37ddd375350931369e0ad47f9dd988023d | |
| parent | b7703cc9e238ac061a66c80e4132c2d4c633d7d5 (diff) | |
On the Gig PHYTER, for whatever reason, the 10baseT-related bits of the
BMSR are wired to 0, yet the PHY supports 10baseT. So, to get around
this, we test the ANAR 10baseT bits after a PHY reset. These bits are
set according to input pin 180. If we see the 10baseT ANAR bits set,
we fake them in the BMSR so that we can actually autonegotiate 10baseT.
From thorpej@NetBSD
| -rw-r--r-- | sys/dev/mii/nsgphy.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/sys/dev/mii/nsgphy.c b/sys/dev/mii/nsgphy.c index 4516ea10278..6fca820315d 100644 --- a/sys/dev/mii/nsgphy.c +++ b/sys/dev/mii/nsgphy.c @@ -1,4 +1,4 @@ -/* $OpenBSD: nsgphy.c,v 1.16 2005/05/27 09:24:01 brad Exp $ */ +/* $OpenBSD: nsgphy.c,v 1.17 2006/07/22 04:45:13 brad Exp $ */ /* * Copyright (c) 2001 Wind River Systems * Copyright (c) 2001 @@ -109,6 +109,7 @@ nsgphyattach(struct device *parent, struct device *self, void *aux) struct mii_attach_args *ma = aux; struct mii_data *mii = ma->mii_data; const struct mii_phydesc *mpd; + int anar; mpd = mii_phy_match(ma, nsgphys); printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); @@ -120,10 +121,26 @@ nsgphyattach(struct device *parent, struct device *self, void *aux) sc->mii_flags = ma->mii_flags; sc->mii_anegticks = MII_ANEGTICKS; + PHY_RESET(sc); + sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; if (sc->mii_capabilities & BMSR_EXTSTAT) sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); + + /* + * The PHY seems to have the 10baseT BMSR bits + * hard-wired to 0, even though the device supports + * 10baseT. What we do instead is read the post-reset + * ANAR, who's 10baseT-related bits are set by strapping + * pin 180, and fake the BMSR bits. + */ + anar = PHY_READ(sc, MII_ANAR); + if (anar & ANAR_10) + sc->mii_capabilities |= (BMSR_10THDX & ma->mii_capmask); + if (anar & ANAR_10_FD) + sc->mii_capabilities |= (BMSR_10TFDX & ma->mii_capmask); + if ((sc->mii_capabilities & BMSR_MEDIAMASK) || (sc->mii_extcapabilities & EXTSR_MEDIAMASK)) mii_phy_add_media(sc); |