[U-Boot] P1022 eTSEC

Renaud Barbier renaud.barbier at ge.com
Wed Feb 9 21:23:47 CET 2011


Correction: P1013

On 09/02/11 20:21, Renaud Barbier wrote:
> We have a system with a P1022 connected to a 5461S in SGMII mode.
>
> In order to make it work in SGMII mode, I set TBI ANA to 0x4001 as per
> AN3869. Note that those bit are described as reserved in the P1022 doc
> that I have.
> I was then able to transfer data at 100/1000 (10 not tested).
>
> As per AN3869 a value of 0x1a0 is  for 1000BASE-X.
>
>
> Looking at the tsec driver (drivers/net/tsec.c), one can see:
>
> #define TBIANA_SETTINGS ( \
>           TBIANA_ASYMMETRIC_PAUSE \
>           | TBIANA_SYMMETRIC_PAUSE \
>           | TBIANA_FULL_DUPLEX \
>           )
> ==>  0x1a0
>
> if (regs->ecntrl&  ECNTRL_SGMII_MODE)
>           tsec_configure_serdes(priv);
>
> That would mean the TBI ANA is not set correctly when SGMII
> is reported.
>
> Please can you verify this.
>
> Cheers.
>
>
>
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-- 
Renaud Barbier
14, Links Place
3/2 great Michael House
Edinburgh, EH67EN
Tel: +44 131 561 3532



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