static int read_MII(struct net_device *dev, int phy, int reg)
{
int timedout = 20;
u32 smir = smirOpCode | (phy << smirPhyAdBit) |
(reg << smirRegAdBit);
// wait for last operation to complete
while ((GT64240_READ(GT64240_ETH_SMI_REG)) & smirBusy) {
// snooze for 1 msec and check again
gt64240_delay(1);
if (--timedout == 0) {
printk("%s: read_MII busy timeout!!\n", dev->name);
return -1;
}
}
GT64240_WRITE(GT64240_ETH_SMI_REG, smir);
timedout = 20;
// wait for read to complete
while (!
((smir =
GT64240_READ(GT64240_ETH_SMI_REG)) & smirReadValid)) {
// snooze for 1 msec and check again
gt64240_delay(1);
if (--timedout == 0) {
printk("%s: read_MII timeout!!\n", dev->name);
return -1;
}
}
return (int) (smir & smirDataMask);
}
// These routines work, just disabled to avoid compile warnings
static void write_MII(struct net_device *dev, int phy, int reg, int data)
{
u32 smir = (phy << smirPhyAdBit) | (reg << smirRegAdBit) | data;
int timedout = 20;
// wait for last operation to complete
while (GT64240_READ(GT64240_ETH_SMI_REG) & smirBusy) {
// snooze for 1 msec and check again
gt64240_delay(1);
if (--timedout == 0) {
printk("%s: write_MII busy timeout!!\n",
dev->name);
return;
}
}
GT64240_WRITE(GT64240_ETH_SMI_REG, smir);
}
// These routines work, just disabled to avoid compile warnings
static int write_MII(struct net_device *dev, u32 reg, u16 data)
{
struct gt64240_private *gp = (struct gt64240_private *) dev->priv;
int timedout = 20;
u32 smir =
(gp->phy_addr << smirPhyAdBit) | (reg << smirRegAdBit) | data;
// wait for last operation to complete
while (GT64240_READ(GT64240_ETH_SMI_REG) & smirBusy) {
// snooze for 1 msec and check again
gt64240_delay(1);
if (--timedout == 0) {
printk("%s: write_MII busy timeout!!\n",
dev->name);
return -1;
}
}
GT64240_WRITE(GT64240_ETH_SMI_REG, smir);
return 0;
}