On Fri, Apr 12, 2013 at 11:56:57AM +0100, Mark Jackson wrote:
> We have a dual Ethernet board (based on the BeagelBone) but with both
> Ethernet ports connected.
>
> I'm wanting to use eth1 (rather than eth0), so in my board.c file, I changed:-
>
> static struct cpsw_slave_data cpsw_slaves[] = {
> {
> .slave_reg_ofs = 0x208,
> .sliver_reg_ofs = 0xd80,
> .phy_id = 0,
> },
> {
> .slave_reg_ofs = 0x308,
> .sliver_reg_ofs = 0xdc0,
> .phy_id = 1,
> },
> };
>
> ... to ...
>
> static struct cpsw_slave_data cpsw_slaves[] = {
> {
> .slave_reg_ofs = 0x308,
> .sliver_reg_ofs = 0xdc0,
> .phy_id = 1,
> },
> {
> .slave_reg_ofs = 0x208,
> .sliver_reg_ofs = 0xd80,
> .phy_id = 0,
> },
> };
>
> ... assuming that eth0 would now be ignored (as only 1 slave is configured).
>
> But (eg) dhcp still only responds on eth0 !?!
>
> What else do I have to change ?Good question, do you have both ports working in Linux yet? The EVM-SK design supports two interfaces and I know the cpsw driver in the kernel required some changes to support two. I strongly suspect similar changes would be required in the U-Boot driver (I don't have any specific links other than look at the vendor kernel tree). -- Tom
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