On Wednesday 12 August 2015 02:06 PM, Alexander Aring wrote:
> Hi,
>
> my beaglebone (white edition) fails to boot via dhcp and nfsroot. The
> last messages which I see are:
>
> ...
> [ 2.970593] Sending DHCP requests .
> [ 5.996876] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full -
> flow control off
>
>
> then it stucks forever. I reverted the recently cpsw patches:
>
> 32a7432c0fb8b0117961bdc7ab256667d039de16 ("drivers: net: cpsw: add
> separate napi for tx")
>
> d354eb85d61803e07831b68d1985cd9cfe2f8b59 ("drivers: net: cpsw:
> dual_emac: simplify napi usage")
>
> 870915feabdc3af5f0ebb72d1fcf96bff01837b0 ("drivers: net: cpsw: remove
> disable_irq/enable_irq as irq can be masked from cpsw itself")
>
>
> I did a test after each revert, I finally figured out that after reverting
> the last patch:
>
> 870915feabdc3af5f0ebb72d1fcf96bff01837b0 ("drivers: net: cpsw: remove
> disable_irq/enable_irq as irq can be masked from cpsw itself")
>
> it worked again to boot via dhcp nfsroot.
>
>
> My bootparameters are:
>
> commandline: console=ttyO0,115200n8 console=ttyO0,115200n8 ip=dhcp
> root=/dev/nfs nfsroot=$IP:$NFS_EXPORT,v3,tcp
>
I am already looking into it. Will submit a fix soon. The issue is with
AM335x PG1.0 as there is a errata in CPSW interrupts, PG2.x and other
SoCs are working fine.
Regards
Mugunthan V N
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