Hi Oleksij, On 18.06.2021 12:13, Oleksij Rempel wrote: > thank you for your feedback. > > On Fri, Jun 18, 2021 at 10:39:12AM +0200, Marek Szyprowski wrote: >> On 07.06.2021 10:27, Oleksij Rempel wrote: >>> To be able to use ax88772 with external PHYs and use advantage of >>> existing PHY drivers, we need to port at least ax88772 part of asix >>> driver to the phylib framework. >>> >>> Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> >> I found one more issue with this patch. On one of my test boards >> (Samsung Exynos5250 SoC based Arndale) system fails to establish network >> connection just after starting the kernel when the driver is build-in. >> >> --->8--- >> # dmesg | grep asix >> [ 2.761928] usbcore: registered new interface driver asix >> [ 5.003110] asix 1-3.2.4:1.0 (unnamed net_device) (uninitialized): >> invalid hw address, using random >> [ 6.065400] asix 1-3.2.4:1.0 eth0: register 'asix' at >> usb-12110000.usb-3.2.4, ASIX AX88772 USB 2.0 Ethernet, 7a:9b:9a:f2:94:8e >> [ 14.043868] asix 1-3.2.4:1.0 eth0: Link is Up - 100Mbps/Full - flow >> control off >> # ping -c2 host >> PING host (192.168.100.1) 56(84) bytes of data. >> From 192.168.100.20 icmp_seq=1 Destination Host Unreachable >> From 192.168.100.20 icmp_seq=2 Destination Host Unreachable >> >> --- host ping statistics --- >> 2 packets transmitted, 0 received, +2 errors, 100% packet loss, time 59ms >> --->8--- > Hm... it looks like different chip variant. My is registered as > "ASIX AX88772B USB", yours is "ASIX AX88772 USB 2.0" - "B" is the > difference. Can you please tell me more about this adapter and if possible open > tell the real part name. Well, currently I have only remote access to that board. The network chip is soldered on board. Maybe you can read something from the photo on the wiki page: https://en.wikipedia.org/wiki/Arndale_Board > I can imagine that this adapter may using generic PHY driver. > Can you please confirm it by dmesg | grep PHY? > In my case i'll get: > Asix Electronics AX88772C usb-001:003:10: attached PHY driver (mii_bus:phy_addr=usb-001:003:10, irq=POLL) # dmesg | grep PHY [ 5.700274] Asix Electronics AX88772A usb-001:004:10: attached PHY driver (mii_bus:phy_addr=usb-001:004:10, irq=POLL) > If you have a different PHY, can you please send me the PHY id: > cat /sys/bus/mdio_bus/devices/usb-001\:003\:10/phy_id > > Your usb path will probably be different. # cat /sys/bus/mdio_bus/devices/usb-001\:004\:10/phy_id 0x003b1861 > ... Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland
