Am 2021-06-29 19:08, schrieb Vladimir Oltean:
From: Vladimir Oltean <[email protected]>
This series makes the Felix DSA driver initialize all its connected
PHYs
regardless of whether those will be used for networking or not. This is
in order to satisfy the expectations of some software in later boot
stages.
To make this work, it is necessary to introduce a new method in struct
dsa_ops: .port_probe().
There is some further refactoring/cleanup along the way.
Tested-by: Michael Walle <[email protected]>
Seems like our PHYs are already in in-band signalling mode. I can't see
any difference after applying this series. Neither by using the port
in uboot, ie. "bootp; boot" nor booting directly into linux without
using the network.
Also, we have two different variants:
- one where the switch is used in u-boot and in linux:
arch/arm/dts/fsl-ls1028a-kontron-sl28-var2.dtb (DSA support still
pending in u-boot)
- one where we only use the switch in linux and u-boot doesn't touch
the device at all:
arch/arm/dts/fsl-ls1028a-kontron-sl28-var4.dtb
Do I understand it correctly, that for the latter variant DPDK would
be broken if the PHY hasn't in-band signalling enabled by default?
Because u-boot doesn't know the device and it won't setup the PHY
correctly.
Oh and I noticed that for var2 "managed = in-band-status" is missing
in the linux dtb; what a mess ;) I wonder how this ever worked..
-michael
