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net: phy: aquantia: add support for auto-negotiation configuration

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Make use of the generic c45 code, plus code specific to the Aquantia
phy for 1000BaseT negotiation.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2019-02-22 23:49:54 +01:00 committed by David S. Miller
parent 0974f1f03b
commit 09c4c57f7b
1 changed files with 37 additions and 3 deletions
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40
drivers/net/phy/aquantia.c
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@ -20,6 +20,10 @@
#define PHY_ID_AQCS109 0x03a1b5c2
#define PHY_ID_AQR405 0x03a1b4b0
#define MDIO_AN_VEND_PROV 0xc400
#define MDIO_AN_VEND_PROV_1000BASET_FULL BIT(15)
#define MDIO_AN_VEND_PROV_1000BASET_HALF BIT(14)
#define MDIO_AN_TX_VEND_STATUS1 0xc800
#define MDIO_AN_TX_VEND_STATUS1_10BASET (0x0 << 1)
#define MDIO_AN_TX_VEND_STATUS1_100BASETX (0x1 << 1)
@ -64,10 +68,40 @@
static int aqr_config_aneg(struct phy_device *phydev)
{
linkmode_copy(phydev->supported, phy_10gbit_features);
linkmode_copy(phydev->advertising, phydev->supported);
bool changed = false;
u16 reg;
int ret;
return 0;
if (phydev->autoneg == AUTONEG_DISABLE)
return genphy_c45_pma_setup_forced(phydev);
ret = genphy_c45_an_config_aneg(phydev);
if (ret < 0)
return ret;
if (ret > 0)
changed = true;
/* Clause 45 has no standardized support for 1000BaseT, therefore
* use vendor registers for this mode.
*/
reg = 0;
if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
phydev->advertising))
reg |= MDIO_AN_VEND_PROV_1000BASET_FULL;
if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
phydev->advertising))
reg |= MDIO_AN_VEND_PROV_1000BASET_HALF;
ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_VEND_PROV,
MDIO_AN_VEND_PROV_1000BASET_HALF |
MDIO_AN_VEND_PROV_1000BASET_FULL, reg);
if (ret < 0)
return ret;
if (ret > 0)
changed = true;
return genphy_c45_check_and_restart_aneg(phydev, changed);
}
static int aqr_config_intr(struct phy_device *phydev)