diff options
| author | Vikas Manocha <vikas.manocha@st.com> | 2012-03-26 00:09:57 +0000 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2012-04-04 10:47:34 -0500 |
| commit | e25c90b45c4764e60e44f302ad337ed6ce066468 (patch) | |
| tree | d09d14341cd82b54471faba6a58e94061a6fa926 /drivers | |
| parent | 13edd1706c56371dc6a67f7bef874f6d8b7af8eb (diff) | |
| download | blackbird-obmc-uboot-e25c90b45c4764e60e44f302ad337ed6ce066468.tar.gz blackbird-obmc-uboot-e25c90b45c4764e60e44f302ad337ed6ce066468.zip | |
net/designware: Program phy registers when auto-negotiation is ON
If AN(auto-negotiation) is ON, speed bit of control register are not
applicable. Also phy registers were not getting programmed as per the
result of AN. This patch sets only AN bit & restart AN bit for AN ON
selection & programs PHY registers as per AN result.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/designware.c | 43 |
1 files changed, 29 insertions, 14 deletions
diff --git a/drivers/net/designware.c b/drivers/net/designware.c index ebb1fff805..56f0c7ac53 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -399,8 +399,7 @@ static int configure_phy(struct eth_device *dev) return -1; #if defined(CONFIG_DW_AUTONEG) - bmcr = BMCR_ANENABLE | BMCR_ANRESTART | BMCR_SPEED100 | \ - BMCR_FULLDPLX | BMCR_SPEED1000; + bmcr = BMCR_ANENABLE | BMCR_ANRESTART; #else bmcr = BMCR_SPEED100 | BMCR_FULLDPLX; @@ -428,23 +427,39 @@ static int configure_phy(struct eth_device *dev) eth_mdio_read(dev, phy_addr, MII_STAT1000, &btsr); if (bmsr & BMSR_ANEGCOMPLETE) { - if (btsr & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)) { + if (btsr & PHY_1000BTSR_1000FD) { priv->speed = SPEED_1000M; - if (btsr & PHY_1000BTSR_1000FD) - priv->duplex = FULL_DUPLEX; - else - priv->duplex = HALF_DUPLEX; + bmcr |= BMCR_SPEED1000; + priv->duplex = FULL_DUPLEX; + bmcr |= BMCR_FULLDPLX; + } else if (btsr & PHY_1000BTSR_1000HD) { + priv->speed = SPEED_1000M; + bmcr |= BMCR_SPEED1000; + priv->duplex = HALF_DUPLEX; + bmcr &= ~BMCR_FULLDPLX; + } else if (anlpar & LPA_100FULL) { + priv->speed = SPEED_100M; + bmcr |= BMCR_SPEED100; + priv->duplex = FULL_DUPLEX; + bmcr |= BMCR_FULLDPLX; + } else if (anlpar & LPA_100HALF) { + priv->speed = SPEED_100M; + bmcr |= BMCR_SPEED100; + priv->duplex = HALF_DUPLEX; + bmcr &= ~BMCR_FULLDPLX; + } else if (anlpar & LPA_10FULL) { + priv->speed = SPEED_10M; + bmcr &= ~BMCR_SPEED100; + priv->duplex = FULL_DUPLEX; + bmcr |= BMCR_FULLDPLX; } else { - if (anlpar & LPA_100) - priv->speed = SPEED_100M; - else priv->speed = SPEED_10M; - - if (anlpar & (LPA_10FULL | LPA_100FULL)) - priv->duplex = FULL_DUPLEX; - else + bmcr &= ~BMCR_SPEED100; priv->duplex = HALF_DUPLEX; + bmcr &= ~BMCR_FULLDPLX; } + if (eth_mdio_write(dev, phy_addr, MII_BMCR, bmcr) < 0) + return -1; } else return -1; #else |
