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Date: Wed, 11 Jul 2012 12:35:36 -0500
From: Scott Wood <scottwood@freescale.com>
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To: Jia Hongtao-B38951 <B38951@freescale.com>
Subject: Re: [PATCH 1/2] powerpc/mpc8572ds: Fix eTSEC is not available on
 core1 of AMP boot issue
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Cc: Wood Scott-B07421 <B07421@freescale.com>,
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On 07/10/2012 09:07 PM, Jia Hongtao-B38951 wrote:
> 
> 
>> -----Original Message-----
>> From: Wood Scott-B07421
>> Sent: Wednesday, July 11, 2012 2:15 AM
>> To: Jia Hongtao-B38951
>> Cc: linuxppc-dev@lists.ozlabs.org; galak@kernel.crashing.org
>> Subject: Re: [PATCH 1/2] powerpc/mpc8572ds: Fix eTSEC is not available on
>> core1 of AMP boot issue
>>
>> On 07/10/2012 01:08 AM, Jia Hongtao wrote:
>>> The issue log on core1 is:
>>> root@mpc8572ds:~# ifconfig eth0 10.192.208.244
>>> net eth0: could not attach to PHY
>>> SIOCSIFFLAGS: No such device
>>>
>>> To attach PHY node mdio@24520 should not be disabled in dts of core1.
>>> Because all PHYs are controlled through this node as follows:
>>
>> So you grant it to both partitions?  How do you deal with synchronization?
>>
>> -Scott
> 
> PHY nodes are only used by ethernet. Each ethernet is used by only one partition
> (disabled in the other partition). So I think there is no synchronization issue.

I mean for accessing the MDIO bus.

-Scott