diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2016-11-22 20:40:57 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-24 21:45:53 +0100 |
| commit | db88816ba22284cef98ce290adfac03bb1d5221c (patch) | |
| tree | 9da1454a85dc516f4e012c3fa5dbb0e37d725255 /drivers/net/phy/bcm7xxx.c | |
| parent | net: phy: broadcom: Allow enabling or disabling of EEE (diff) | |
| download | linux-db88816ba22284cef98ce290adfac03bb1d5221c.tar.xz linux-db88816ba22284cef98ce290adfac03bb1d5221c.zip | |
net: phy: bcm7xxx: Add support for downshift/Wirespeed
Add support for configuring the downshift/Wirespeed enable/disable
toggles and specify a link retry value ranging from 1 to 9. Since the
integrated BCM7xxx have issues when wirespeed is enabled and EEE is also
enabled, we do disable EEE if wirespeed is enabled.
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 | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c index b7789e879670..5b3be4c67be8 100644 --- a/drivers/net/phy/bcm7xxx.c +++ b/drivers/net/phy/bcm7xxx.c @@ -167,6 +167,7 @@ static int bcm7xxx_28nm_config_init(struct phy_device *phydev) { u8 rev = PHY_BRCM_7XXX_REV(phydev->dev_flags); u8 patch = PHY_BRCM_7XXX_PATCH(phydev->dev_flags); + u8 count; int ret = 0; pr_info_once("%s: %s PHY revision: 0x%02x, patch: %d\n", @@ -199,7 +200,12 @@ static int bcm7xxx_28nm_config_init(struct phy_device *phydev) if (ret) return ret; - ret = bcm_phy_set_eee(phydev, true); + ret = bcm_phy_downshift_get(phydev, &count); + if (ret) + return ret; + + /* Only enable EEE if Wirespeed/downshift is disabled */ + ret = bcm_phy_set_eee(phydev, count == DOWNSHIFT_DEV_DISABLE); if (ret) return ret; @@ -303,6 +309,47 @@ static int bcm7xxx_suspend(struct phy_device *phydev) return 0; } +static int bcm7xxx_28nm_get_tunable(struct phy_device *phydev, + struct ethtool_tunable *tuna, + void *data) +{ + switch (tuna->id) { + case ETHTOOL_PHY_DOWNSHIFT: + return bcm_phy_downshift_get(phydev, (u8 *)data); + default: + return -EOPNOTSUPP; + } +} + +static int bcm7xxx_28nm_set_tunable(struct phy_device *phydev, + struct ethtool_tunable *tuna, + const void *data) +{ + u8 count = *(u8 *)data; + int ret; + + switch (tuna->id) { + case ETHTOOL_PHY_DOWNSHIFT: + ret = bcm_phy_downshift_set(phydev, count); + break; + default: + return -EOPNOTSUPP; + } + + if (ret) + return ret; + + /* Disable EEE advertisment since this prevents the PHY + * from successfully linking up, trigger auto-negotiation restart + * to let the MAC decide what to do. + */ + ret = bcm_phy_set_eee(phydev, count == DOWNSHIFT_DEV_DISABLE); + if (ret) + return ret; + + return genphy_restart_aneg(phydev); +} + #define BCM7XXX_28NM_GPHY(_oui, _name) \ { \ .phy_id = (_oui), \ @@ -315,6 +362,8 @@ static int bcm7xxx_suspend(struct phy_device *phydev) .config_aneg = genphy_config_aneg, \ .read_status = genphy_read_status, \ .resume = bcm7xxx_28nm_resume, \ + .get_tunable = bcm7xxx_28nm_get_tunable, \ + .set_tunable = bcm7xxx_28nm_set_tunable, \ } #define BCM7XXX_40NM_EPHY(_oui, _name) \ |