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From: Bert Lindner <bert-phGP8mJ4Mqk@public•gmane.org>
To: "Andreas Färber" <afaerber-l3A5Bk7waGM@public•gmane.org>,
	"Robin Murphy" <robin.murphy-5wv7dgnIgG8@public•gmane.org>
Cc: Marc Zyngier <marc.zyngier-5wv7dgnIgG8@public•gmane.org>,
	Maxime Ripard
	<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public•gmane.org>,
	linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public•gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public•gmane.org,
	netdev-u79uwXL29TY76Z2rM5mHXA@public•gmane.org,
	Giuseppe Cavallaro <peppe.cavallaro-qxv4g6HH51o@public•gmane.org>
Subject: Re: 4.5.0 on sun7i-a20-olinuxino-lime2: libphy: PHY stmmac-0:ffffffff not found (regression from rc7)
Date: Wed, 16 Mar 2016 16:10:39 +0100	[thread overview]
Message-ID: <56E9776F.3070102@a20.net> (raw)
In-Reply-To: <56E95B57.1090100-l3A5Bk7waGM@public.gmane.org>

On 2016-03-16 14:10, Andreas Färber wrote:
> 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@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@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@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.

Hi guys - I can confirm 4.5.0 minus 88f8b1b works for me:

root@lime2-079f:~# cat /proc/version
Linux version 4.5.0-minus-88f8b1b (root@lime2-079f) (gcc version 4.9.1 
(Ubuntu/Linaro 4.9.1-16ubuntu6) ) #2 SMP Wed Mar 16 12:50:03 UTC 2016

 From dmesg output:
[    9.731730] NET: Registered protocol family 10
[   10.516893]  RX IPC Checksum Offload disabled
[   10.516948]  No MAC Management Counters available
[   10.517374] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   15.505548] sun7i-dwmac 1c50000.ethernet eth0: Link is Up - 
1Gbps/Full - flow control off
[   15.505660] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

.. and connected over ethernet.

Thanks, best,

	-bert

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  parent reply	other threads:[~2016-03-16 15:10 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <56E9413D.9010902@a20.net>
     [not found] ` <56E945FF.6080005@arm.com>
     [not found]   ` <56E94CF4.2060607@arm.com>
     [not found]     ` <56E94CF4.2060607-5wv7dgnIgG8@public.gmane.org>
2016-03-16 13:10       ` 4.5.0 on sun7i-a20-olinuxino-lime2: libphy: PHY stmmac-0:ffffffff not found (regression from rc7) Andreas Färber
     [not found]         ` <56E95B57.1090100-l3A5Bk7waGM@public.gmane.org>
2016-03-16 15:10           ` Bert Lindner [this message]
     [not found]             ` <56E9776F.3070102-phGP8mJ4Mqk@public.gmane.org>
2016-03-16 17:42               ` Marc Zyngier
     [not found]                 ` <56E99B0C.2070609-5wv7dgnIgG8@public.gmane.org>
2016-03-16 23:56                   ` Bert Lindner
     [not found]                     ` <56E9F2B8.1030605-phGP8mJ4Mqk@public.gmane.org>
2016-03-17  7:52                       ` Marc Zyngier
2016-05-20  5:44                         ` Andre Heider
     [not found]                           ` <CAHsu+b-t_r93XKLJTUcin6xjhOrFVn3_60vwHkbRt3iHK28CbA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-05-20  7:56                             ` Marc Zyngier
     [not found]                               ` <573EC33D.2010209-5wv7dgnIgG8@public.gmane.org>
2016-05-20  8:14                                 ` Giuseppe CAVALLARO
     [not found]                                   ` <573EC77A.2000800-qxv4g6HH51o@public.gmane.org>
2016-05-20 10:30                                     ` Andre Heider
2016-05-20 10:36                                       ` Marc Zyngier
     [not found]                                         ` <573EE8B4.1050701-5wv7dgnIgG8@public.gmane.org>
2016-05-20 10:43                                           ` Andre Heider
2016-05-21 15:47                                           ` Bert Lindner
     [not found]                                             ` <574082F9.7010702-phGP8mJ4Mqk@public.gmane.org>
2016-05-22  9:30                                               ` Marc Zyngier
     [not found]                                                 ` <20160522103056.2fa86293-5wv7dgnIgG8@public.gmane.org>
2016-05-23 13:28                                                   ` Giuseppe CAVALLARO

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