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net: phy: bcm7xxx: add workaround for PHY revision E0 and F0 

PHY revisions E0 and F0 share the same shorter workaround initialization
sequence. Dedicate a special function for these two PHY revisions to
perform the needed workaround sequence.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2014-11-11 14:55:14 -08:00 committed by David S. Miller
parent a490631fa6
commit 0c2fdc25ae
1 changed files with 29 additions and 0 deletions
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29
drivers/net/phy/bcm7xxx.c
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@ -162,6 +162,31 @@ static int bcm7xxx_28nm_d0_afe_config_init(struct phy_device *phydev)
return 0;
}
static int bcm7xxx_28nm_e0_plus_afe_config_init(struct phy_device *phydev)
{
/* AFE_RXCONFIG_1, provide more margin for INL/DNL measurement */
phy_write_misc(phydev, AFE_RXCONFIG_1, 0x9b2f);
/* AFE_VDCA_ICTRL_0, set Iq=1101 instead of 0111 for AB symmetry */
phy_write_misc(phydev, AFE_VDCA_ICTRL_0, 0xa7da);
/* AFE_HPF_TRIM_OTHERS, set 100Tx/10BT to -4.5% swing and set rCal
* offset for HT=0 code
*/
phy_write_misc(phydev, AFE_HPF_TRIM_OTHERS, 0x00e3);
/* CORE_BASE1E, force trim to overwrite and set I_ext trim to 0000 */
phy_write(phydev, MII_BCM7XXX_CORE_BASE1E, 0x0010);
/* DSP_TAP10, adjust bias current trim (+0% swing, +0 tick) */
phy_write_misc(phydev, DSP_TAP10, 0x011b);
/* Reset R_CAL/RC_CAL engine */
r_rc_cal_reset(phydev);
return 0;
}
static int bcm7xxx_apd_enable(struct phy_device *phydev)
{
int val;
@ -225,6 +250,10 @@ static int bcm7xxx_28nm_config_init(struct phy_device *phydev)
case 0xd0:
ret = bcm7xxx_28nm_d0_afe_config_init(phydev);
break;
case 0xe0:
case 0xf0:
ret = bcm7xxx_28nm_e0_plus_afe_config_init(phydev);
break;
default:
break;
}