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author | Philippe Schenker <philippe.schenker@toradex.com> | 2020-03-11 11:59:23 +0100 |
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committer | Stefano Babic <sbabic@denx.de> | 2020-05-01 13:46:22 +0200 |
commit | c51eef5924d748f4a6c4b0263a0b570f57709fc9 (patch) | |
tree | c1e8a3b5ebf6b9bf0e54b0f0e87d72644e318963 /drivers/net | |
parent | 0861aa8fedcaa89655ec3967a041bf2c6500b857 (diff) | |
download | u-boot-c51eef5924d748f4a6c4b0263a0b570f57709fc9.zip u-boot-c51eef5924d748f4a6c4b0263a0b570f57709fc9.tar.gz u-boot-c51eef5924d748f4a6c4b0263a0b570f57709fc9.tar.bz2 |
net: phy: micrel: Add basic support for KSZ9131
This adds basic support for the new Micrel KSZ9131 phy.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/phy/micrel_ksz90x1.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/net/phy/micrel_ksz90x1.c b/drivers/net/phy/micrel_ksz90x1.c index f83650b..f0032e8 100644 --- a/drivers/net/phy/micrel_ksz90x1.c +++ b/drivers/net/phy/micrel_ksz90x1.c @@ -393,9 +393,67 @@ static struct phy_driver ksz9031_driver = { .readext = &ksz9031_phy_extread, }; +/* + * KSZ9131 + */ +static int ksz9131_config(struct phy_device *phydev) +{ + /* TBD: Implement Skew values for dts */ + + /* add an option to disable the gigabit feature of this PHY */ + if (env_get("disable_giga")) { + unsigned features; + unsigned bmcr; + + /* disable speed 1000 in features supported by the PHY */ + features = phydev->drv->features; + features &= ~(SUPPORTED_1000baseT_Half | + SUPPORTED_1000baseT_Full); + phydev->advertising = phydev->supported = features; + + /* disable speed 1000 in Basic Control Register */ + bmcr = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR); + bmcr &= ~(1 << 6); + phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, bmcr); + + /* disable speed 1000 in 1000Base-T Control Register */ + phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, 0); + + /* start autoneg */ + genphy_config_aneg(phydev); + genphy_restart_aneg(phydev); + + return 0; + } + + return genphy_config(phydev); +} + +static struct phy_driver ksz9131_driver = { + .name = "Micrel ksz9031", + .uid = PHY_ID_KSZ9131, + .mask = MII_KSZ9x31_SILICON_REV_MASK, + .features = PHY_GBIT_FEATURES, + .config = &ksz9131_config, + .startup = &ksz90xx_startup, + .shutdown = &genphy_shutdown, + .writeext = &ksz9031_phy_extwrite, + .readext = &ksz9031_phy_extread, +}; + +int ksz9xx1_phy_get_id(struct phy_device *phydev) +{ + unsigned int phyid; + + get_phy_id(phydev->bus, phydev->addr, MDIO_DEVAD_NONE, &phyid); + + return phyid; +} + int phy_micrel_ksz90x1_init(void) { phy_register(&ksz9021_driver); phy_register(&ksz9031_driver); + phy_register(&ksz9131_driver); return 0; } |