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Message-Id: <1335808616-22513-8-git-send-email-steve.glendinning@shawell.net> Date: Mon, 30 Apr 2012 18:56:56 +0100 From: Steve Glendinning <steve.glendinning@...well.net> To: netdev@...r.kernel.org Cc: David Miller <davem@...emloft.net>, Stephane Fillod <fillods@...rs.sf.net>, Steve Glendinning <steve.glendinning@...well.net> Subject: [PATCH 7/7] 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@...rs.sf.net> Signed-off-by: Steve Glendinning <steve.glendinning@...well.net> --- drivers/net/usb/smsc75xx.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index ae23d85..00103a8 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); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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