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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>
This commit is contained in:
Vikas Manocha 2012-03-26 00:09:57 +00:00 committed by Joe Hershberger
parent 13edd1706c
commit e25c90b45c
1 changed files with 29 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
drivers/net/designware.c
View File

@ -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