diff options
Diffstat (limited to 'drivers/net/phy/broadcom.c')
| -rw-r--r-- | drivers/net/phy/broadcom.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index dec4dec23b66..3262a2474b07 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -142,6 +142,35 @@ #define PHY_BCM_FLAGS_MODE_1000BX 0x00000002 #define PHY_BCM_FLAGS_MODE_COPPER 0x00000001 + +/*****************************************************************************/ +/* Fast Ethernet Transceiver definitions. */ +/*****************************************************************************/ + +#define MII_BRCM_FET_INTREG 0x1a /* Interrupt register */ +#define MII_BRCM_FET_IR_MASK 0x0100 /* Mask all interrupts */ +#define MII_BRCM_FET_IR_LINK_EN 0x0200 /* Link status change enable */ +#define MII_BRCM_FET_IR_SPEED_EN 0x0400 /* Link speed change enable */ +#define MII_BRCM_FET_IR_DUPLEX_EN 0x0800 /* Duplex mode change enable */ +#define MII_BRCM_FET_IR_ENABLE 0x4000 /* Interrupt enable */ + +#define MII_BRCM_FET_BRCMTEST 0x1f /* Brcm test register */ +#define MII_BRCM_FET_BT_SRE 0x0080 /* Shadow register enable */ + + +/*** Shadow register definitions ***/ + +#define MII_BRCM_FET_SHDW_MISCCTRL 0x10 /* Shadow misc ctrl */ +#define MII_BRCM_FET_SHDW_MC_FAME 0x4000 /* Force Auto MDIX enable */ + +#define MII_BRCM_FET_SHDW_AUXMODE4 0x1a /* Auxiliary mode 4 */ +#define MII_BRCM_FET_SHDW_AM4_LED_MASK 0x0003 +#define MII_BRCM_FET_SHDW_AM4_LED_MODE1 0x0001 + +#define MII_BRCM_FET_SHDW_AUXSTAT2 0x1b /* Auxiliary status 2 */ +#define MII_BRCM_FET_SHDW_AS2_APDE 0x0020 /* Auto power down enable */ + + MODULE_DESCRIPTION("Broadcom PHY driver"); MODULE_AUTHOR("Maciej W. Rozycki"); MODULE_LICENSE("GPL"); @@ -436,6 +465,114 @@ static int bcm5481_config_aneg(struct phy_device *phydev) return ret; } +static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set) +{ + int val; + + val = phy_read(phydev, reg); + if (val < 0) + return val; + + return phy_write(phydev, reg, val | set); +} + +static int brcm_fet_config_init(struct phy_device *phydev) +{ + int reg, err, err2, brcmtest; + + /* Reset the PHY to bring it to a known state. */ + err = phy_write(phydev, MII_BMCR, BMCR_RESET); + if (err < 0) + return err; + + reg = phy_read(phydev, MII_BRCM_FET_INTREG); + if (reg < 0) + return reg; + + /* Unmask events we are interested in and mask interrupts globally. */ + reg = MII_BRCM_FET_IR_DUPLEX_EN | + MII_BRCM_FET_IR_SPEED_EN | + MII_BRCM_FET_IR_LINK_EN | + MII_BRCM_FET_IR_ENABLE | + MII_BRCM_FET_IR_MASK; + + err = phy_write(phydev, MII_BRCM_FET_INTREG, reg); + if (err < 0) + return err; + + /* Enable shadow register access */ + brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST); + if (brcmtest < 0) + return brcmtest; + + reg = brcmtest | MII_BRCM_FET_BT_SRE; + + err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg); + if (err < 0) + return err; + + /* Set the LED mode */ + reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4); + if (reg < 0) { + err = reg; + goto done; + } + + reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK; + reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1; + + err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg); + if (err < 0) + goto done; + + /* Enable auto MDIX */ + err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL, + MII_BRCM_FET_SHDW_MC_FAME); + if (err < 0) + goto done; + + /* Enable auto power down */ + err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2, + MII_BRCM_FET_SHDW_AS2_APDE); + +done: + /* Disable shadow register access */ + err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest); + if (!err) + err = err2; + + return err; +} + +static int brcm_fet_ack_interrupt(struct phy_device *phydev) +{ + int reg; + + /* Clear pending interrupts. */ + reg = phy_read(phydev, MII_BRCM_FET_INTREG); + if (reg < 0) + return reg; + + return 0; +} + +static int brcm_fet_config_intr(struct phy_device *phydev) +{ + int reg, err; + + reg = phy_read(phydev, MII_BRCM_FET_INTREG); + if (reg < 0) + return reg; + + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) + reg &= ~MII_BRCM_FET_IR_MASK; + else + reg |= MII_BRCM_FET_IR_MASK; + + err = phy_write(phydev, MII_BRCM_FET_INTREG, reg); + return err; +} + static struct phy_driver bcm5411_driver = { .phy_id = 0x00206070, .phy_id_mask = 0xfffffff0, @@ -571,6 +708,21 @@ static struct phy_driver bcm57780_driver = { .driver = { .owner = THIS_MODULE }, }; +static struct phy_driver bcmac131_driver = { + .phy_id = 0x0143bc70, + .phy_id_mask = 0xfffffff0, + .name = "Broadcom BCMAC131", + .features = PHY_BASIC_FEATURES | + SUPPORTED_Pause | SUPPORTED_Asym_Pause, + .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, + .config_init = brcm_fet_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = brcm_fet_ack_interrupt, + .config_intr = brcm_fet_config_intr, + .driver = { .owner = THIS_MODULE }, +}; + static int __init broadcom_init(void) { int ret; @@ -602,8 +754,13 @@ static int __init broadcom_init(void) ret = phy_driver_register(&bcm57780_driver); if (ret) goto out_57780; + ret = phy_driver_register(&bcmac131_driver); + if (ret) + goto out_ac131; return ret; +out_ac131: + phy_driver_unregister(&bcm57780_driver); out_57780: phy_driver_unregister(&bcm50610m_driver); out_50610m: @@ -626,6 +783,7 @@ out_5411: static void __exit broadcom_exit(void) { + phy_driver_unregister(&bcmac131_driver); phy_driver_unregister(&bcm57780_driver); phy_driver_unregister(&bcm50610m_driver); phy_driver_unregister(&bcm50610_driver); |