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path: root/drivers/net/phy/broadcom.c
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Diffstat (limited to 'drivers/net/phy/broadcom.c')
-rw-r--r--drivers/net/phy/broadcom.c57
1 files changed, 56 insertions, 1 deletions
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 5b80358..f5310ed 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);
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