[U-Boot] PPC460EX with 2 Ethernet Tranceivers

[Wolfgang Denk]

Dear "Judd Gilbert",

In message <16691A8B34B5D9458EA3A1C37A11555A01351D87 at tanisys-ex2.Tanisys.Local> you wrote:
> 
> I am currently running linux 2.6.28.4 on a PPC460EX with 2 Marvell
> Alaska 88EIIII Ethernet transceivers connected to it. I've added the
> flags I believe to configure u-boot properly:
...
> eth0: EMAC-0 /plb/opb/ethernet at ef600e00, MAC 00:13:a8:00:0d:c6
> eth0: found Generic MII PHY (0x00)
> /plb/opb/emac-rgmii at ef601500: input 1 in RGMII mode
> eth1: EMAC-1 /plb/opb/ethernet at ef600f00, MAC 00:13:a8:00:0d:c7
> eth1: found Generic MII PHY (0x02)
>  
> If I don't hold the 2nd transceiver in reset I get the following message
> when linux boots:
>  
> eth0: EMAC-0 /plb/opb/ethernet at ef600e00, MAC 00:13:a8:00:0d:c6
> eth0: found Generic MII PHY (0x00)
> /plb/opb/emac-rgmii at ef601500: input 1 in RGMII mode
> /plb/opb/ethernet at ef600f00: can't find PHY!

Well, this is a Linux issue. Linux should make no assumptions about a
specific state of a network device. No matter what U-Boot  does,  the
Linux kernel should always initialize the hardware so that it works.

Best regards,

Wolfgang Denk

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