MAC address set in OCOTP but not visible from ETH0 - i.MX6

MAC address set in OCOTP but not visible from ETH0 - i.MX6

[DEMIRDJIAN, Antoine]

Dear all,

I'm working on a custom board based on an i.MX6 Dual Lite.
I've set a MAC address on OCOTP, and I can see it :

barebox@Main Board:/ devinfo ocotp0
Parameters:
  mac_addr: 70:82:0e:12:73:6f (type: MAC)
  mac_addr0: 70:82:0e:12:73:6f (type: MAC)
  permanent_write_enable: 0 (type: bool)
  sense_enable: 0 (type: bool)

The issue is that I can't get it from eth0 :

barebox@Chrysalis Main Board:/ devinfo eth0
Parameters:
  ethaddr: 00:00:00:00:00:00 (type: MAC)
  gateway: 192.1.1.100 (type: ipv4)
  ipaddr: 0.0.0.0 (type: ipv4)
  linux.bootargs: ip=0.0.0.0:192.1.1.46:192.1.1.100:255.255.255.0:::
(type: string)
  linux.devname:  (type: string)
  mode: static (type: enum) (values: "dhcp", "static", "disabled")
  netmask: 255.255.255.0 (type: ipv4)
  serverip: 192.1.1.46 (type: string)

My operating system's driver does not see it neither ...

Am I missing something?

Best Regards,
Antoine

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Re: MAC address set in OCOTP but not visible from ETH0 - i.MX6

[Ahmad Fatoum]

Hi,

On 26.01.21 18:06, DEMIRDJIAN, Antoine wrote:
> Dear all,
> 
> I'm working on a custom board based on an i.MX6 Dual Lite.
> I've set a MAC address on OCOTP, and I can see it :
> 
> barebox@Main Board:/ devinfo ocotp0
> Parameters:
>   mac_addr: 70:82:0e:12:73:6f (type: MAC)
>   mac_addr0: 70:82:0e:12:73:6f (type: MAC)
>   permanent_write_enable: 0 (type: bool)
>   sense_enable: 0 (type: bool)
> 
> The issue is that I can't get it from eth0 :
> 
> barebox@Chrysalis Main Board:/ devinfo eth0
> Parameters:
>   ethaddr: 00:00:00:00:00:00 (type: MAC)
>   gateway: 192.1.1.100 (type: ipv4)
>   ipaddr: 0.0.0.0 (type: ipv4)
>   linux.bootargs: ip=0.0.0.0:192.1.1.46:192.1.1.100:255.255.255.0:::
> (type: string)
>   linux.devname:  (type: string)
>   mode: static (type: enum) (values: "dhcp", "static", "disabled")
>   netmask: 255.255.255.0 (type: ipv4)
>   serverip: 192.1.1.46 (type: string)
> 
> My operating system's driver does not see it neither ...
> 
> Am I missing something?

Yes: https://barebox.org/doc/latest/devicetree/bindings/misc/fsl,imx-ocotp.html

Check the other i.MX board in arch/arm/dts for an example.

Cheers,
Ahmad

> 
> Best Regards,
> Antoine
> 
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
> 

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Re: MAC address set in OCOTP but not visible from ETH0 - i.MX6

[DEMIRDJIAN, Antoine]

Hi,

Le mar. 26 janv. 2021 à 18:25, Ahmad Fatoum <a.fatoum@pengutronix.de> a écrit :
>
> Hi,
>
> On 26.01.21 18:06, DEMIRDJIAN, Antoine wrote:
> > Dear all,
> >
> > I'm working on a custom board based on an i.MX6 Dual Lite.
> > I've set a MAC address on OCOTP, and I can see it :
> >
> > barebox@Main Board:/ devinfo ocotp0
> > Parameters:
> >   mac_addr: 70:82:0e:12:73:6f (type: MAC)
> >   mac_addr0: 70:82:0e:12:73:6f (type: MAC)
> >   permanent_write_enable: 0 (type: bool)
> >   sense_enable: 0 (type: bool)
> >
> > The issue is that I can't get it from eth0 :
> >
> > barebox@Chrysalis Main Board:/ devinfo eth0
> > Parameters:
> >   ethaddr: 00:00:00:00:00:00 (type: MAC)
> >   gateway: 192.1.1.100 (type: ipv4)
> >   ipaddr: 0.0.0.0 (type: ipv4)
> >   linux.bootargs: ip=0.0.0.0:192.1.1.46:192.1.1.100:255.255.255.0:::
> > (type: string)
> >   linux.devname:  (type: string)
> >   mode: static (type: enum) (values: "dhcp", "static", "disabled")
> >   netmask: 255.255.255.0 (type: ipv4)
> >   serverip: 192.1.1.46 (type: string)
> >
> > My operating system's driver does not see it neither ...
> >
> > Am I missing something?
>
> Yes: https://barebox.org/doc/latest/devicetree/bindings/misc/fsl,imx-ocotp.html
>
> Check the other i.MX board in arch/arm/dts for an example.

Many thanks !

Sorry for the noise...

Best regards,
Antoine

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