[PATCH v4 8/8] board: gw_ventana: enable MV88E61XX DSA support

[Tim Harvey]

On Mon, Oct 3, 2022 at 5:15 PM Fabio Estevam <festevam at gmail.com> wrote:
>
> On Mon, Oct 3, 2022 at 8:46 PM Fabio Estevam <festevam at gmail.com> wrote:
>
> > The switch I am using is a mv88e6320.
> >
> > I instrumented the code a bit and I notice that I am not able to read
> > the switch ID.
> >
> > mv88e6xxx_get_switch_id() fails because mv88e6xxx_port_read() returns 0xffff.
>
> This was caused by the wrong description of the Ethernet switch reset.

Seems like something that needs an error print? Which driver this?

>
> With this fixed, dm tree looks a bit better:
>
>  ethernet      0  [ + ]   fecmxc                |   |   `-- ethernet at 30be0000
>  bootdev       2  [   ]   eth_bootdev           |   |       |--
> ethernet at 30be0000.bootdev
>  mdio          0  [ + ]   fec_mdio              |   |       `-- mdio
>  dsa           0  [ + ]   mv88e6xxx             |   |           `-- switch at 0
>  ethernet      1  [   ]   dsa-port              |   |               |-- lan0
>  bootdev       3  [   ]   eth_bootdev           |   |               |
>  `-- switch at 0@0.bootdev
>  ethernet      2  [   ]   dsa-port              |   |               |-- lan1
>  bootdev       4  [   ]   eth_bootdev           |   |               |
>  `-- switch at 0@1.bootdev
>  ethernet      3  [ + ]   dsa-port              |   |               |-- lan3
>  bootdev       5  [   ]   eth_bootdev           |   |               |
>  `-- switch at 0@3.bootdev
>  mdio          1  [ + ]   mv88e6xxx_mdio        |   |
> `-- mv88e6xxx-mdio-0
>
> Boot log:
> Net:   MV88E61XX
> Warning: ethernet at 30be0000 (eth0) using random MAC address - 36:6f:7f:0c:61:14
> eth0: ethernet at 30be0000Could not get PHY for mv88e6xxx-mdio-0: addr 0
> Could not get PHY for mv88e6xxx-mdio-0: addr 1
> , eth3: lan3

This doesn't look correct - why could it not get the phy for lan1 and
lan2 yet lan3 was fine? I would assume a DT port/reg mismatch.

>
> u-boot=> net list
> eth0 : ethernet at 30be0000 36:6f:7f:0c:61:14 active
> eth1 : lan0 00:00:00:00:00:00
> eth2 : lan1 00:00:00:00:00:00
> eth3 : lan3 36:6f:7f:0c:61:14
>
> but still not able to get DHCP IP.

Where are you setting your active port? By default eth0 is active and
thats the cpu uplink. If you have a network connection on lan3 port
you would need to 'setenv ethact lan3'.

Tim