Pseudo PHY and fake PHY ID

[Alexandr Rybalko]

On Tue, 2 Mar 2010 22:17:03 +0100
Bernd Walter <ticso at cicely7.cicely.de> wrote:

>> On Tue, Mar 02, 2010 at 06:02:42PM +0200, Alexandr Rybalko wrote:
>> > Hi,
>> > 
>> > I making correct driver for SoC switch which is Pseudo PHY on bfe interface.
>> > Someone can point me correct way to fake PHY ID for make it possible auto attach bfeswitch pseudo PHY driver?
>> 
>> Has the switch an MDIO connection?

Yes.

>> I wrote the rtlswitch pseudo PHY driver for the RTL8305SC , which AFAIK still
>> is the only one.
>> The switch identifies without problem via identifiers, but it occupies multiple
>> addresses and to avoid other drivers to claim the other IDs the rtlswitch
>> driver claims all, but only attaches one time.

My problem different, switch use one PHY address, but they (as I know) don`t provide identification.
And I have to devices 
one on BCM5354 they have one bfe and one switch
second on BCM5350 they have two bfe and one switch
So I can`t only set hardcoded link bfe to bfeswitch.
I need way for keeping auto probe and to know how fake switch id depend on outer info.

>> 
>> ate0: <EMAC> mem 0xdffbc000-0xdffbffff irq 24 on atmelarm0
>> miibus0: <MII bus> on ate0
>> rlswitch0: <RTL8305SC 10/100 802.1q switch> PHY 0 on miibus0
>> rlswitch0:  100baseTX-FDX
>> rlswitch1: <RTL8305SC 10/100 802.1q switch> PHY 1 on miibus0
>> rlswitch1: ignoring this PHY, non-zero instance
>> device_attach: rlswitch1 attach returned 6
>> rlswitch2: <RTL8305SC 10/100 802.1q switch> PHY 2 on miibus0
>> rlswitch2: ignoring this PHY, non-zero instance
>> device_attach: rlswitch2 attach returned 6
>> rlswitch3: <RTL8305SC 10/100 802.1q switch> PHY 3 on miibus0
>> rlswitch3: ignoring this PHY, non-zero instance
>> device_attach: rlswitch3 attach returned 6
>> rlswitch4: <RTL8305SC 10/100 802.1q switch> PHY 4 on miibus0
>> rlswitch4: ignoring this PHY, non-zero instance
>> device_attach: rlswitch4 attach returned 6
>> rlswitch5: <RTL8305SC 10/100 802.1q switch> PHY 5 on miibus0
>> rlswitch5: ignoring this PHY, non-zero instance
>> device_attach: rlswitch5 attach returned 6
>> 
>> Beside from loocking strange it works fine this way.
>> 
>> -- 
>> B.Walter <bernd at bwct.de> http://www.bwct.de
>> Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.


-- 
Рыбалко Александр
Консультант D-Link Украина