1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
--- a/drivers/net/arm/ixp4xx_eth.c
+++ b/drivers/net/arm/ixp4xx_eth.c
@@ -322,8 +322,12 @@ static void phy_reset(struct net_device
struct port *port = netdev_priv(dev);
int phy_id = port->mii[idx].phy_id;
int cycles = 0;
+ u16 bmcr;
- mdio_write(dev, phy_id, MII_BMCR, port->mii_bmcr[idx] | BMCR_RESET);
+ /* reset the PHY */
+ bmcr = mdio_read(dev, phy_id, MII_BMCR);
+ bmcr |= BMCR_ANENABLE;
+ mdio_write(dev, phy_id, MII_BMCR, bmcr | BMCR_RESET);
while (cycles < MAX_MII_RESET_RETRIES) {
if (!(mdio_read(dev, phy_id, MII_BMCR) & BMCR_RESET)) {
@@ -331,13 +335,23 @@ static void phy_reset(struct net_device
printk(KERN_DEBUG "%s: phy_reset() took %i cycles\n",
dev->name, cycles);
#endif
- return;
+ break;
}
udelay(1);
cycles++;
}
- printk(KERN_ERR "%s: MII reset failed on PHY%2d\n", dev->name, phy_id);
+ if (cycles == MAX_MII_RESET_RETRIES) {
+ printk(KERN_ERR "%s: MII reset failed on PHY%2d\n", dev->name,
+ phy_id);
+ return;
+ }
+
+ /* restart auto negotiation */
+ bmcr = mdio_read(dev, phy_id, MII_BMCR);
+ bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
+ mdio_write(dev, phy_id, MII_BMCR, bmcr);
+
}
static void eth_set_duplex(struct port *port, int full_duplex)
|
