From: afaerber@suse•de (Andreas Färber)
To: linux-arm-kernel@lists•infradead.org
Subject: 4.5.0 on sun7i-a20-olinuxino-lime2: libphy: PHY stmmac-0:ffffffff not found (regression from rc7)
Date: Wed, 16 Mar 2016 14:10:47 +0100 [thread overview]
Message-ID: <56E95B57.1090100@suse.de> (raw)
In-Reply-To: <56E94CF4.2060607@arm.com>
Am 16.03.2016 um 13:09 schrieb Robin Murphy:
> On 16/03/16 11:39, Marc Zyngier wrote:
>> On 16/03/16 11:19, Bert Lindner wrote:
>>> Hopefully this is the correct place and way to report this.
The main discussion is on netdev list actually, CC'ed.
>>> For the board sun7i-a20-olinuxino-lime2, there seems to be a problem
>>> with the eth0 PHY in mainline kernel 4.5.0 that developed since
>>> 4.5.0-rc7. Ethernet does not work, although eth0 is reported:
>>>
>>> root at lime2-079f:~# ip a l eth0
>>> 2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group
>>> default qlen 1000
>>> link/ether 02:c9:05:02:07:9f brd ff:ff:ff:ff:ff:ff
>>>
>>> Difference reported in dmesg:
>>>
>>> 4.5.0-rc7:
>>> [ 9.379279] NET: Registered protocol family 10
>>> [ 10.217148] RX IPC Checksum Offload disabled
>>> [ 10.217195] No MAC Management Counters available
>>> [ 10.217627] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
>>> [ 15.206250] sun7i-dwmac 1c50000.ethernet eth0: Link is Up -
>>> 1Gbps/Full - flow control off
>>> [ 15.206360] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
>>>
>>> 4.5.0:
>>> [ 9.767125] NET: Registered protocol family 10
>>> [ 10.357405] libphy: PHY stmmac-0:ffffffff not found
>>> [ 10.362382] eth0: Could not attach to PHY
>>> [ 10.366557] stmmac_open: Cannot attach to PHY (error: -19)
>>>
>>> .config is identical for both, also after make oldconfig, apart from
>>> comment with version number. DTB file is also identical between the two
>>> versions.
>>>
>>> Kernels are compiled on the board itself. /proc/version string:
>>> Linux version 4.5.0-rc7 (root at lime2-079f) (gcc version 4.9.1
>>> (Ubuntu/Linaro 4.9.1-16ubuntu6) ) #1 SMP Mon Mar 7 11:57:25 UTC 2016
>>> Linux version 4.5.0 (root at lime2-079f) (gcc version 4.9.1 (Ubuntu/Linaro
>>> 4.9.1-16ubuntu6) ) #1 SMP Tue Mar 15 11:39:01 UTC 2016
>>>
>>> Please let me know if more info is needed, if I should post complete
>>> .config, test compile with a particular config or patch, etc. Part of
>>> .config below.
>>
>> Can you please try reverting 88f8b1b ("stmmac: Fix 'eth0: No PHY found'
>> regression") and report whether or not this changes anything? This seems
>> to be the only stmac patch between -rc7 and release...
>
> Sounds like the same thing as the giant ongoing discussion thread here:
>
> http://thread.gmane.org/gmane.linux.drivers.devicetree/159007/focus=402830
v4 fixes for 4.5 are here:
https://patchwork.ozlabs.org/patch/598195/ (revert)
https://patchwork.ozlabs.org/patch/598196/
v2 fixes for linux-next here:
https://patchwork.ozlabs.org/patch/598331/ (revert)
https://patchwork.ozlabs.org/patch/598332/
Please let Peppe know whether they work for you guys.
Cheers,
Andreas
--
SUSE Linux GmbH, Maxfeldstr. 5, 90409 N?rnberg, Germany
GF: Felix Imend?rffer, Jane Smithard, Graham Norton; HRB 21284 (AG N?rnberg)
next prev parent reply other threads:[~2016-03-16 13:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-16 11:19 4.5.0 on sun7i-a20-olinuxino-lime2: libphy: PHY stmmac-0:ffffffff not found (regression from rc7) Bert Lindner
2016-03-16 11:39 ` Marc Zyngier
2016-03-16 12:09 ` Robin Murphy
2016-03-16 13:06 ` Marc Zyngier
2016-03-16 13:10 ` Andreas Färber [this message]
2016-03-16 15:10 ` Bert Lindner
2016-03-16 17:42 ` Marc Zyngier
2016-03-16 23:56 ` Bert Lindner
2016-03-17 7:52 ` Marc Zyngier
2016-05-20 5:44 ` Andre Heider
2016-05-20 7:56 ` Marc Zyngier
2016-05-20 8:14 ` Giuseppe CAVALLARO
2016-05-20 10:30 ` Andre Heider
2016-05-20 10:36 ` Marc Zyngier
2016-05-20 10:43 ` Andre Heider
2016-05-21 15:47 ` Bert Lindner
2016-05-22 9:30 ` Marc Zyngier
2016-05-23 13:28 ` Giuseppe CAVALLARO
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