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- Check the return value of taskqueue_start_threads().

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- At least the Saturn chips of 501-6738 cards need a delay after freezing
  the external GMII pins before the internal PHY is accessible again. So
  wait a bit after (un)freezing these. Also don't touch the other bits of
  that configuration register. [1]
- Take advantage of nitems().

Reported and tested by: Paul Keusemann [1]

MFC after:	3 days
This commit is contained in:
Marius Strobl 2013-01-25 23:44:02 +00:00
parent f31b83e118
commit 7c2fdcac02
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=245923
1 changed files with 13 additions and 4 deletions
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17
sys/dev/cas/if_cas.c
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@ -214,8 +214,12 @@ cas_attach(struct cas_softc *sc)
error = ENXIO;
goto fail_ifnet;
}
taskqueue_start_threads(&sc->sc_tq, 1, PI_NET, "%s taskq",
error = taskqueue_start_threads(&sc->sc_tq, 1, PI_NET, "%s taskq",
device_get_nameunit(sc->sc_dev));
if (error != 0) {
device_printf(sc->sc_dev, "could not start threads\n");
goto fail_taskq;
}
/* Make sure the chip is stopped. */
cas_reset(sc);
@ -339,10 +343,13 @@ cas_attach(struct cas_softc *sc)
BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
/* Enable/unfreeze the GMII pins of Saturn. */
if (sc->sc_variant == CAS_SATURN) {
CAS_WRITE_4(sc, CAS_SATURN_PCFG, 0);
CAS_WRITE_4(sc, CAS_SATURN_PCFG,
CAS_READ_4(sc, CAS_SATURN_PCFG) &
~CAS_SATURN_PCFG_FSI);
CAS_BARRIER(sc, CAS_SATURN_PCFG, 4,
BUS_SPACE_BARRIER_READ |
BUS_SPACE_BARRIER_WRITE);
DELAY(10000);
}
error = mii_attach(sc->sc_dev, &sc->sc_miibus, ifp,
cas_mediachange, cas_mediastatus, BMSR_DEFCAPMASK,
@ -359,10 +366,12 @@ cas_attach(struct cas_softc *sc)
/* Freeze the GMII pins of Saturn for saving power. */
if (sc->sc_variant == CAS_SATURN) {
CAS_WRITE_4(sc, CAS_SATURN_PCFG,
CAS_READ_4(sc, CAS_SATURN_PCFG) |
CAS_SATURN_PCFG_FSI);
CAS_BARRIER(sc, CAS_SATURN_PCFG, 4,
BUS_SPACE_BARRIER_READ |
BUS_SPACE_BARRIER_WRITE);
DELAY(10000);
}
error = mii_attach(sc->sc_dev, &sc->sc_miibus, ifp,
cas_mediachange, cas_mediastatus, BMSR_DEFCAPMASK,
@ -2865,7 +2874,7 @@ cas_pci_attach(device_t dev)
goto fail;
}
i = 0;
if (lma > 1 && pci_get_slot(dev) < sizeof(enaddr) / sizeof(*enaddr))
if (lma > 1 && pci_get_slot(dev) < nitems(enaddr))
i = pci_get_slot(dev);
memcpy(sc->sc_enaddr, enaddr[i], ETHER_ADDR_LEN);
@ -2874,7 +2883,7 @@ cas_pci_attach(device_t dev)
goto fail;
}
i = 0;
if (phy > 1 && pci_get_slot(dev) < sizeof(pcs) / sizeof(*pcs))
if (phy > 1 && pci_get_slot(dev) < nitems(pcs))
i = pci_get_slot(dev);
if (pcs[i] != 0)
sc->sc_flags |= CAS_SERDES;