[LEDE-DEV] [OpenWrt-Devel] MV88E6060 switch

[Sergey Ryazanov]

On Fri, Jul 28, 2017 at 1:03 AM, Nerijus Baliunas
<nerijus at users.sourceforge.net> wrote:
> On Thu, 27 Jul 2017 23:43:19 +0300 Sergey Ryazanov <ryazanov.s.a at gmail.com> wrote:
>
>> >> Did  you  see  the  "Marvell  88E6060  PHY  driver attached" in kernel
>> >> messages   log?  If  not then the mwswitch driver did not attached and
>> >> you  should  fix  this  first.  And  only  then  go  to  the interface
>> >> configuration.
>> >
>> > No, dmesg|grep 6060 does not show anything. How do I fix it?
>>
>> Try   to check, which MDIO addresses PHY core (or Ethernet MAC driver)
>> scans to detect connected PHYs.
>
> I enabled #define DEBUG_MDIO 1 in ixp4xx_eth.c and got this:
> # dmesg|grep -i MII|grep -v took
> ...
> [    0.976646] IXP4xx MII Bus #16: MII read [2] -> 0x141
> [    0.976747] IXP4xx MII Bus #16: MII read [3] -> 0xC87
> [    0.978682] IXP4xx MII Bus #24: MII read [3] -> 0x602

Looks like mvswitch driver tries to check chip here and got an
expected value 0x060X from register 3. So on the one hand the driver
is functioning, but on the other hand it can not detect switch IC.

Can you go to the /sys/class/mdio_bus/ and for each bus check driver
and ID of the each detected device. E.g.:
# cd /sys/class/mdio_bus
# ls -l */*/driver
# ls -l */*/phy_id
# cat */*/phy_id

-- 
Sergey