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| author | Florian Fainelli <f.fainelli@gmail.com> | 2014-11-11 14:55:14 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-12 13:58:07 -0500 |
| commit | 0c2fdc25ae4520e98082bc3ecfea4dce06d52018 (patch) | |
| tree | 8c86c63824048a3d695b866ff28ee7521769b398 /drivers/net/phy/bcm7xxx.c | |
| parent | a490631fa61795638c0a0df1bc1ac7185cd41c3b (diff) | |
| download | linux-0c2fdc25ae4520e98082bc3ecfea4dce06d52018.tar.bz2 | |
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>
Diffstat (limited to 'drivers/net/phy/bcm7xxx.c')
| -rw-r--r-- | drivers/net/phy/bcm7xxx.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c index 095cfc92326e..7a53af4346e4 100644 --- a/drivers/net/phy/bcm7xxx.c +++ b/drivers/net/phy/bcm7xxx.c @@ -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; } |