[ELDK] [DNX#2010090642260] Problem of PPC405EX ethernet in MII mode instead of RGMII

[DENX Support System]

Dear Sun Xubin,

09/06/2010 14:00 - 噜斯卡 孙 wrote:
> Dear Madam/SIr:    I'm bringing up a board that is similar to a Kilauea
> but with a
> Micrel KSZ8041 ethernet phy. We've wired the phy up for MII mode. Now I've
> got linux running on the board.I've defined that CONFIG_MII=y in my kernel
> config.And I modified the EMAC0 int kilauea.dts like:EMAC0:
> ethernet at ef600900 {
>     linux,network-index = <0x0>;
>     device_type = "network";
>     compatible = "ibm,emac-405ex", "ibm,emac4sync";
>     interrupt-parent = <&EMAC0>;
>     interrupts = <0x0 0x1>;
>     #interrupt-cells = <1>;
>     #address-cells = <0>;
>     #size-cells = <0>;
>     interrupt-map = </*Status*/ 0x0 &UIC0 0x18 0x4
>       /*Wake*/  0x1 &UIC1 0x1d 0x4>;
>     reg = <0xef600900 0x000000c4>;
>     local-mac-address = [000000000000]; /* Filled in by U-Boot */
>     mal-device = <&MAL0>;
>     mal-tx-channel = <0>;
>     mal-rx-channel = <0>;
>     cell-index = <0>;
>     max-frame-size = <9000>;
>     rx-fifo-size = <4096>;
>     tx-fifo-size = <2048>;
>     phy-mode = "mii";
>     phy-address = <1>;
>     has-inverted-stacr-oc;
>     has-new-stacr-staopc;
>
> But the ethernet did not work yet.Here's a snippet from the kernel log:
> 
> ~ # grep MII /var/log/messages 
> Dec 31 18:00:09 kilauea user.warn kernel: eth0: found Generic MII PHY (0x01)
> It like that kernel awared phy. But ethernet didn't work. When I connect
> the board to my PC through ethernet, the console print "eth0: link is up,
> 100 FDX, pause enabled
> eth0: link is down" ceaselessly.Now I don't really know the right way to attack
> this.  Can someone point me in the right direction?

To tackle this problem, I have a few questions:

- Which Linux kernel version are you using?
- Does ethernet work in U-Boot?
- Where is the ethernet port connected to (switch, etc)?
- Please post the *complete* Linux boot log next time

Best regards,
Stefan

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