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net: phy: aquantia: Set only autoneg on in register 4.c441

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For AQR405 in register 4.c441 bit 15 was override with 0. This caused the
phy to not negotiate at 2.5GB rate with mac. To avoid
this override it needed first to know the previous value of reg 4.c441
and set only bit 3.

Signed-off-by: Valentin Catalin Neacsu <valentin-catalin.neacsu@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Valentin-catalin Neacsu 2019-02-13 09:14:53 +00:00 committed by Joe Hershberger
parent 05eb6a698a
commit c940646ed1
1 changed files with 6 additions and 1 deletions
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7
drivers/net/phy/aquantia.c
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@ -303,9 +303,14 @@ int aquantia_config(struct phy_device *phydev)
AQUANTIA_SYSTEM_INTERFACE_SR);
/* If SI is USXGMII then start USXGMII autoneg */
if ((val & AQUANTIA_SI_IN_USE_MASK) == AQUANTIA_SI_USXGMII) {
reg_val1 = phy_read(phydev, MDIO_MMD_PHYXS,
AQUANTIA_VENDOR_PROVISIONING_REG);
reg_val1 |= AQUANTIA_USX_AUTONEG_CONTROL_ENA;
phy_write(phydev, MDIO_MMD_PHYXS,
AQUANTIA_VENDOR_PROVISIONING_REG,
AQUANTIA_USX_AUTONEG_CONTROL_ENA);
reg_val1);
printf("%s: system interface USXGMII\n",
phydev->dev->name);
} else {