diff options
| author | Brad Smith <brad@cvs.openbsd.org> | 2008-04-20 01:32:44 +0000 |
|---|---|---|
| committer | Brad Smith <brad@cvs.openbsd.org> | 2008-04-20 01:32:44 +0000 |
| commit | 3907efe166bb0680d214330544f0a8be0c698ee2 (patch) | |
| tree | a57e29bd7337b5dd62620b2a01f9ffa09117e028 /sys/dev/mii/brgphy.c | |
| parent | 72af29d7a22fd5a1e4f31d18f0f94f7bb2bb2d88 (diff) | |
Add a workaround for a CRC bug errata with BCM5701 A0 and B0 chipset
revisions.
From Linux via FreeBSD.
ok dlg@
Diffstat (limited to 'sys/dev/mii/brgphy.c')
| -rw-r--r-- | sys/dev/mii/brgphy.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/sys/dev/mii/brgphy.c b/sys/dev/mii/brgphy.c index 7283de7f4b2..e35ee7fe46a 100644 --- a/sys/dev/mii/brgphy.c +++ b/sys/dev/mii/brgphy.c @@ -1,4 +1,4 @@ -/* $OpenBSD: brgphy.c,v 1.75 2008/03/02 16:05:26 brad Exp $ */ +/* $OpenBSD: brgphy.c,v 1.76 2008/04/20 01:32:43 brad Exp $ */ /* * Copyright (c) 2000 @@ -91,6 +91,7 @@ void brgphy_bcm54k2_dspcode(struct mii_softc *); void brgphy_adc_bug(struct mii_softc *); void brgphy_5704_a0_bug(struct mii_softc *); void brgphy_ber_bug(struct mii_softc *); +void brgphy_crc_bug(struct mii_softc *); void brgphy_jumbo_settings(struct mii_softc *); void brgphy_eth_wirespeed(struct mii_softc *); @@ -501,6 +502,8 @@ brgphy_reset(struct mii_softc *sc) PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x0400); } + if (bge_sc->bge_flags & BGE_PHY_CRC_BUG) + brgphy_crc_bug(sc); /* Set Jumbo frame settings in the PHY. */ if (bge_sc->bge_flags & BGE_JUMBO_CAP) @@ -671,6 +674,26 @@ brgphy_ber_bug(struct mii_softc *sc) PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); } +/* BCM5701 A0/B0 CRC bug workaround */ +void +brgphy_crc_bug(struct mii_softc *sc) +{ + static const struct { + int reg; + uint16_t val; + } dspcode[] = { + { BRGPHY_MII_DSP_ADDR_REG, 0x0a75 }, + { 0x1c, 0x8c68 }, + { 0x1c, 0x8d68 }, + { 0x1c, 0x8c68 }, + { 0, 0 }, + }; + int i; + + for (i = 0; dspcode[i].reg != 0; i++) + PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); +} + void brgphy_jumbo_settings(struct mii_softc *sc) { |