diff options
| author | Philippe Schenker <philippe.schenker@toradex.com> | 2020-02-27 16:31:46 +0100 |
|---|---|---|
| committer | Philippe Schenker <philippe.schenker@toradex.com> | 2020-03-04 16:07:24 +0100 |
| commit | cc96ed419f7585db15855dd53046562aadece3fb (patch) | |
| tree | 06196f449f2fed2b0a9a297d23c28c41156176ed | |
| parent | 28491c802d36accbb4d8562114ce8085ca53e1b0 (diff) | |
drivers: net: phy: micrel_ksz90x1.c: Add basic support for KSZ9131
This adds basic support for the new Micrel KSZ9131 phy.
Related-to: ELB-1299
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
| -rw-r--r-- | drivers/net/phy/micrel_ksz90x1.c | 62 | ||||
| -rw-r--r-- | include/micrel.h | 2 |
2 files changed, 64 insertions, 0 deletions
diff --git a/drivers/net/phy/micrel_ksz90x1.c b/drivers/net/phy/micrel_ksz90x1.c index 03269418fa..b115e0d723 100644 --- a/drivers/net/phy/micrel_ksz90x1.c +++ b/drivers/net/phy/micrel_ksz90x1.c @@ -392,9 +392,71 @@ static struct phy_driver ksz9031_driver = { .readext = &ksz9031_phy_extread, }; +/* + * KSZ9131 + */ +static int ksz9131_config(struct phy_device *phydev) +{ + int ret; + + ret = ksz9031_of_config(phydev); + if (ret) + return ret; + + /* 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; } diff --git a/include/micrel.h b/include/micrel.h index 1d121c2825..f5126f2992 100644 --- a/include/micrel.h +++ b/include/micrel.h @@ -26,6 +26,7 @@ #define MII_KSZ9x31_SILICON_REV_MASK 0xfffff0 #define PHY_ID_KSZ9031 0x00221620 +#define PHY_ID_KSZ9131 0x00221640 /* Registers */ @@ -40,5 +41,6 @@ int ksz9031_phy_extended_write(struct phy_device *phydev, int devaddr, int regnum, u16 mode, u16 val); int ksz9031_phy_extended_read(struct phy_device *phydev, int devaddr, int regnum, u16 mode); +int ksz9xx1_phy_get_id(struct phy_device *phydev); #endif |