From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Wed, 16 Mar 2016 17:42:36 +0000 Subject: 4.5.0 on sun7i-a20-olinuxino-lime2: libphy: PHY stmmac-0:ffffffff not found (regression from rc7) In-Reply-To: <56E9776F.3070102@a20.net> References: <56E9413D.9010902@a20.net> <56E945FF.6080005@arm.com> <56E94CF4.2060607@arm.com> <56E95B57.1090100@suse.de> <56E9776F.3070102@a20.net> Message-ID: <56E99B0C.2070609@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 16/03/16 15:10, Bert Lindner wrote: > On 2016-03-16 14:10, Andreas F?rber 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 at lime2-079f:~# ip a l eth0 >>>>> 2: eth0: 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. > > Hi guys - I can confirm 4.5.0 minus 88f8b1b works for me: > > root at lime2-079f:~# cat /proc/version > Linux version 4.5.0-minus-88f8b1b (root at 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. Good to know, thanks. Could you also give the potential fix a go (as mentioned by Andreas)? Just to make sure that whatever gets merged next will actually fix the issue. Thanks, M. -- Jazz is not dead. It just smells funny... From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier 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 17:42:36 +0000 Message-ID: <56E99B0C.2070609@arm.com> References: <56E9413D.9010902@a20.net> <56E945FF.6080005@arm.com> <56E94CF4.2060607@arm.com> <56E95B57.1090100@suse.de> <56E9776F.3070102@a20.net> Reply-To: marc.zyngier-5wv7dgnIgG8@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: Maxime Ripard , linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Giuseppe Cavallaro To: Bert Lindner , =?UTF-8?Q?Andreas_F=c3=a4rber?= , Robin Murphy Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org In-Reply-To: <56E9776F.3070102-phGP8mJ4Mqk@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , List-Id: netdev.vger.kernel.org On 16/03/16 15:10, Bert Lindner wrote: > On 2016-03-16 14:10, Andreas F=C3=A4rber 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: 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 read= y >>>>> >>>>> 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 t= wo >>>>> 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/Lina= ro >>>>> 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 see= ms >>>> 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=3D4= 02830 >> >> 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. >=20 > Hi guys - I can confirm 4.5.0 minus 88f8b1b works for me: >=20 > root@lime2-079f:~# cat /proc/version > Linux version 4.5.0-minus-88f8b1b (root@lime2-079f) (gcc version 4.9.1=20 > (Ubuntu/Linaro 4.9.1-16ubuntu6) ) #2 SMP Wed Mar 16 12:50:03 UTC 2016 >=20 > 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 -=20 > 1Gbps/Full - flow control off > [ 15.505660] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready >=20 > .. and connected over ethernet. Good to know, thanks. Could you also give the potential fix a go (as mentioned by Andreas)? Just to make sure that whatever gets merged next will actually fix the issue. Thanks, M. --=20 Jazz is not dead. It just smells funny... --=20 You received this message because you are subscribed to the Google Groups "= linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to linux-sunxi+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/d/optout.