> &gem0 {
> status = "okay";
> phy-mode = "rgmii-id";
> phy-handle = <&phy0>;
> fixed-link {
> speed = <1000>;
> full-duplex;
> };
>
> > The diagram you showed had gem0 connected directly to the switch. So
> > this phy-handle is wrong. Or the diagram is wrong.
> The diagram is correct. I have commented the phy-mode and phy-handle in
> 'gem0' definition and got error:
> 'macb e000b000.ethernet eth0: no PHY found'
/* based on au1000_eth. c*/
static int macb_mii_probe(struct net_device *dev)
{
struct macb *bp = netdev_priv(dev);
struct phy_device *phydev;
struct device_node *np;
int ret, i;
np = bp->pdev->dev.of_node;
ret = 0;
if (np) {
if (of_phy_is_fixed_link(np)) {
bp->phy_node = of_node_get(np);
} else {
...
if (bp->phy_node) {
phydev = of_phy_connect(dev, bp->phy_node,
&macb_handle_link_change, 0,
bp->phy_interface);
if (!phydev)
return -ENODEV;
} else {
phydev = phy_find_first(bp->mii_bus);
if (!phydev) {
netdev_err(dev, "no PHY found\n");
return -ENXIO;
}
So either of_phy_is_fixed_link(np) is returning false, or
of_node_get(np) returns NULL.
You need to do some debugging and figure out which and why.
Also, note that this code has changed a lot since v5.4. You might want
to try v5.9, or v5.10-rc2.
Andrew
