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| author | Steve Glendinning <steve.glendinning@shawell.net> | 2012-04-30 07:56:56 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-04-30 21:52:42 -0400 |
| commit | 2f3a081ea2f63cd5b3e549a0040c760d87483f99 (patch) | |
| tree | 8875061f829c8adcbc1e1649e055cd450ea87096 /drivers/net/usb/smsc75xx.c | |
| parent | c0b92e4d44ecaab3cd3f09f9f905306a5989b0d4 (diff) | |
| download | linux-2f3a081ea2f63cd5b3e549a0040c760d87483f99.tar.gz linux-2f3a081ea2f63cd5b3e549a0040c760d87483f99.tar.bz2 linux-2f3a081ea2f63cd5b3e549a0040c760d87483f99.zip | |
smsc75xx: enable mac to detect speed/duplex from phy
This patch sets the automatic speed and duplex detection bits
in MAC_CR to enable the mac to determine its speed automatically
from the phy.
Note this must be done BEFORE the receiver or transmitter is
enabled.
Signed-off-by: Stephane Fillod <fillods@users.sf.net>
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb/smsc75xx.c')
| -rw-r--r-- | drivers/net/usb/smsc75xx.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index ae23d85a973a..00103a8c5e04 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -951,6 +951,14 @@ static int smsc75xx_reset(struct usbnet *dev) ret = smsc75xx_write_reg(dev, INT_EP_CTL, buf); check_warn_return(ret, "Failed to write INT_EP_CTL: %d", ret); + /* allow mac to detect speed and duplex from phy */ + ret = smsc75xx_read_reg(dev, MAC_CR, &buf); + check_warn_return(ret, "Failed to read MAC_CR: %d", ret); + + buf |= (MAC_CR_ADD | MAC_CR_ASD); + ret = smsc75xx_write_reg(dev, MAC_CR, buf); + check_warn_return(ret, "Failed to write MAC_CR: %d", ret); + ret = smsc75xx_read_reg(dev, MAC_TX, &buf); check_warn_return(ret, "Failed to read MAC_TX: %d", ret); |