[U-Boot] How to disable MAC address for usb_ether

[U-Boot] How to disable MAC address for usb_ether

[Xuebing Wang]

Hi,

My board has one Ethernet, one USB Host and one USB Slave.

Command bdinfo shows below:

eth0name    = cpsw
ethaddr     = 90:59:af:54:1a:28
eth1name    = usb_ether
eth1addr    = 90:59:af:54:1a:2a
current eth = cpsw

Would you please teach me how to disable usb_ether MAC address, thus 
bdinfo will show "eth1addr    = (not set)"?

Thanks a lot.

-- 
Thanks,
Xuebing Wang

[U-Boot] How to disable MAC address for usb_ether

[Albert ARIBAUD]

Hi Xuebing,

On Tue, 08 Apr 2014 11:13:04 +0800, Xuebing Wang <xbing6@gmail.com>
wrote:

> Hi,
> 
> My board has one Ethernet, one USB Host and one USB Slave.
> 
> Command bdinfo shows below:
> 
> eth0name    = cpsw
> ethaddr     = 90:59:af:54:1a:28
> eth1name    = usb_ether
> eth1addr    = 90:59:af:54:1a:2a
> current eth = cpsw
> 
> Would you please teach me how to disable usb_ether MAC address, thus 
> bdinfo will show "eth1addr    = (not set)"?
> 
> Thanks a lot.

Why do you want to unset the MAC address? Either you are using USB
Ethernet, and you need it to have a valid MAC, or you are not using it,
and eth1addr does not matter and can be safely ignored.

Still, you might want to try and check whether eth1addr is defined
in the environment (see env commands) and try to unset it -- but that
depends on which board exactly you are using and whether it is
supported by mainline U-Boot.

Amicalement,
-- 
Albert.

[U-Boot] How to disable MAC address for usb_ether

[Tom Rini]

On Tue, Apr 08, 2014 at 11:13:04AM +0800, Xuebing Wang wrote:

> Hi,
> 
> My board has one Ethernet, one USB Host and one USB Slave.
> 
> Command bdinfo shows below:
> 
> eth0name    = cpsw
> ethaddr     = 90:59:af:54:1a:28
> eth1name    = usb_ether
> eth1addr    = 90:59:af:54:1a:2a
> current eth = cpsw
> 
> Would you please teach me how to disable usb_ether MAC address, thus
> bdinfo will show "eth1addr    = (not set)"?

Please note that the eFuse on your chip has at least 2 MAC addresses on
it and we probe and setup both to pass along to the kernel.

-- 
Tom
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