diff options
Diffstat (limited to 'common/miiphyutil.c')
| -rw-r--r-- | common/miiphyutil.c | 42 |
1 files changed, 37 insertions, 5 deletions
diff --git a/common/miiphyutil.c b/common/miiphyutil.c index 721d109a1..2b0dcf4f2 100644 --- a/common/miiphyutil.c +++ b/common/miiphyutil.c @@ -147,15 +147,31 @@ int miiphy_speed (unsigned char addr) } #endif /* CONFIG_PHY_GIGE */ - if (miiphy_read (addr, PHY_ANLPAR, ®)) { - puts ("PHY speed1 read failed, assuming 10bT\n"); + /* Check Basic Management Control Register first. */ + if (miiphy_read (addr, PHY_BMCR, ®)) { + puts ("PHY speed read failed, assuming 10bT\n"); return (_10BASET); } - if ((reg & PHY_ANLPAR_100) != 0) { + /* Check if auto-negotiation is on. */ + if ((reg & PHY_BMCR_AUTON) != 0) { + /* Get auto-negotiation results. */ + if (miiphy_read (addr, PHY_ANLPAR, ®)) { + puts ("PHY AN speed read failed, assuming 10bT\n"); + return (_10BASET); + } + if ((reg & PHY_ANLPAR_100) != 0) { + return (_100BASET); + } else { + return (_10BASET); + } + } + /* Get speed from basic control settings. */ + else if (reg & PHY_BMCR_100MB) { return (_100BASET); } else { return (_10BASET); } + } @@ -182,16 +198,32 @@ int miiphy_duplex (unsigned char addr) } #endif /* CONFIG_PHY_GIGE */ - if (miiphy_read (addr, PHY_ANLPAR, ®)) { + /* Check Basic Management Control Register first. */ + if (miiphy_read (addr, PHY_BMCR, ®)) { puts ("PHY duplex read failed, assuming half duplex\n"); return (HALF); } + /* Check if auto-negotiation is on. */ + if ((reg & PHY_BMCR_AUTON) != 0) { + /* Get auto-negotiation results. */ + if (miiphy_read (addr, PHY_ANLPAR, ®)) { + puts ("PHY AN duplex read failed, assuming half duplex\n"); + return (HALF); + } - if ((reg & (PHY_ANLPAR_10FD | PHY_ANLPAR_TXFD)) != 0) { + if ((reg & (PHY_ANLPAR_10FD | PHY_ANLPAR_TXFD)) != 0) { + return (FULL); + } else { + return (HALF); + } + } + /* Get speed from basic control settings. */ + else if (reg & PHY_BMCR_DPLX) { return (FULL); } else { return (HALF); } + } #ifdef CFG_FAULT_ECHO_LINK_DOWN |