diff options
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/broadcom.c | 57 |
1 files changed, 56 insertions, 1 deletions
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index 5b80358af65..f5310ed3760 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -99,6 +99,41 @@ static int bcm54xx_config_intr(struct phy_device *phydev) return err; } +static int bcm5481_config_aneg(struct phy_device *phydev) +{ + int ret; + + /* Aneg firsly. */ + ret = genphy_config_aneg(phydev); + + /* Then we can set up the delay. */ + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) { + u16 reg; + + /* + * There is no BCM5481 specification available, so down + * here is everything we know about "register 0x18". This + * at least helps BCM5481 to successfuly receive packets + * on MPC8360E-RDK board. Peter Barada <peterb@logicpd.com> + * says: "This sets delay between the RXD and RXC signals + * instead of using trace lengths to achieve timing". + */ + + /* Set RDX clk delay. */ + reg = 0x7 | (0x7 << 12); + phy_write(phydev, 0x18, reg); + + reg = phy_read(phydev, 0x18); + /* Set RDX-RXC skew. */ + reg |= (1 << 8); + /* Write bits 14:0. */ + reg |= (1 << 15); + phy_write(phydev, 0x18, reg); + } + + return ret; +} + static struct phy_driver bcm5411_driver = { .phy_id = 0x00206070, .phy_id_mask = 0xfffffff0, @@ -141,8 +176,22 @@ static struct phy_driver bcm5461_driver = { .driver = { .owner = THIS_MODULE }, }; +static struct phy_driver bcm5481_driver = { + .phy_id = 0x0143bca0, + .phy_id_mask = 0xfffffff0, + .name = "Broadcom BCM5481", + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, + .config_init = bcm54xx_config_init, + .config_aneg = bcm5481_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = bcm54xx_ack_interrupt, + .config_intr = bcm54xx_config_intr, + .driver = { .owner = THIS_MODULE }, +}; + static struct phy_driver bcm5482_driver = { - .phy_id = 0x0143bcb0, + .phy_id = 0x0143bcb0, .phy_id_mask = 0xfffffff0, .name = "Broadcom BCM5482", .features = PHY_GBIT_FEATURES, @@ -168,12 +217,17 @@ static int __init broadcom_init(void) ret = phy_driver_register(&bcm5461_driver); if (ret) goto out_5461; + ret = phy_driver_register(&bcm5481_driver); + if (ret) + goto out_5481; ret = phy_driver_register(&bcm5482_driver); if (ret) goto out_5482; return ret; out_5482: + phy_driver_unregister(&bcm5481_driver); +out_5481: phy_driver_unregister(&bcm5461_driver); out_5461: phy_driver_unregister(&bcm5421_driver); @@ -186,6 +240,7 @@ out_5411: static void __exit broadcom_exit(void) { phy_driver_unregister(&bcm5482_driver); + phy_driver_unregister(&bcm5481_driver); phy_driver_unregister(&bcm5461_driver); phy_driver_unregister(&bcm5421_driver); phy_driver_unregister(&bcm5411_driver); |