quoted
In the code which defines 'phy_info_lxt971', it says that somehow LXT971
tells me that the link is down when the first read after power-up. So
you have to read MII_REG_SR to set 'fep->phy_status' accordingly. But in
my case, the read action occurred too early to wait till the link is up.
So what I did is to delay 5s before reading MII_REG_SR during opening
FEC device. I guess it takes the link a while to autonegotiate the speed.
Hmm. I suppose PHY should interrupt when link status change, and therefore
phy_status would be updated accordingly. So, maybe you have a problem with
your board's PHY interrupt signal.
Yeah, I think so. So I have to check whether the PHY interrupt is
enabled or not. Thanks for your thoughts.
- Shawn.
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