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broadcom: Fix slow link problem

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When a 50610 or 50610M is paired against particular remote partners,
link is slow to come up.  This patch works around the problem.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2009-11-02 14:28:33 +00:00 committed by David S. Miller
parent 47b1b53b41
commit 219c6efefa
1 changed files with 14 additions and 8 deletions
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22
drivers/net/phy/broadcom.c
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@ -242,12 +242,6 @@ static int bcm50610_a0_workaround(struct phy_device *phydev)
{
int err;
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP08,
MII_BCM54XX_EXP_EXP08_RJCT_2MHZ |
MII_BCM54XX_EXP_EXP08_EARLY_DAC_WAKE);
if (err < 0)
return err;
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH0,
MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN |
MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF);
@ -287,8 +281,20 @@ static int bcm54xx_phydsp_config(struct phy_device *phydev)
if (err < 0)
return err;
if (phydev->drv->phy_id == PHY_ID_BCM50610)
err = bcm50610_a0_workaround(phydev);
if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) {
/* Clear bit 9 to fix a phy interop issue. */
err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP08,
MII_BCM54XX_EXP_EXP08_RJCT_2MHZ);
if (err < 0)
goto error;
if (phydev->drv->phy_id == PHY_ID_BCM50610) {
err = bcm50610_a0_workaround(phydev);
if (err < 0)
goto error;
}
}
if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) {
int val;