diff options
| author | Kenneth R Westerback <krw@cvs.openbsd.org> | 2006-12-17 06:04:12 +0000 |
|---|---|---|
| committer | Kenneth R Westerback <krw@cvs.openbsd.org> | 2006-12-17 06:04:12 +0000 |
| commit | de1fb3a1f0413b688cfca974395ae0919356f485 (patch) | |
| tree | 4a2ea3a908d34669545c7dad45cdc9c5d1d3c02f /sys | |
| parent | e5c1c9ce1f39397172d5bf9d18e5fcecb1fb9e64 (diff) | |
Add/modify some comments. From Brad.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/if_bge.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/sys/dev/pci/if_bge.c b/sys/dev/pci/if_bge.c index b2486fbd293..6dcb8944f9b 100644 --- a/sys/dev/pci/if_bge.c +++ b/sys/dev/pci/if_bge.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_bge.c,v 1.200 2006/12/08 02:13:36 gwk Exp $ */ +/* $OpenBSD: if_bge.c,v 1.201 2006/12/17 06:04:11 krw Exp $ */ /* * Copyright (c) 2001 Wind River Systems @@ -2070,6 +2070,7 @@ bge_reset(struct bge_softc *sc) BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| BGE_PCIMISCCTL_ENDIAN_WORDSWAP|BGE_PCIMISCCTL_PCISTATE_RW); + /* Disable fastboot on controllers that support it. */ if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5752 || BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5755 || BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5787) @@ -2092,6 +2093,10 @@ bge_reset(struct bge_softc *sc) } } + /* + * Set GPHY Power Down Override to leave GPHY + * powered up in D0 uninitialized. + */ if (BGE_IS_5705_OR_BEYOND(sc)) reset |= BGE_MISCCFG_KEEP_GPHY_POWER; @@ -2108,7 +2113,11 @@ bge_reset(struct bge_softc *sc) v = pci_conf_read(pa->pa_pc, pa->pa_tag, 0xc4); pci_conf_write(pa->pa_pc, pa->pa_tag, 0xc4, v | (1<<15)); } - /* Set PCI Express max payload size and clear error status. */ + + /* + * Set PCI Express max payload size to 128 bytes + * and clear error status. + */ pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_CONF_DEV_CTRL, 0xf5000); } @@ -2137,8 +2146,7 @@ bge_reset(struct bge_softc *sc) bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER); /* - * Poll the value location we just wrote until - * we see the 1's complement of the magic number. + * Poll until we see 1's complement of the magic number. * This indicates that the firmware initialization * is complete. We expect this to fail if no SEEPROM * is fitted. |