prueth does not work when CPSW is disabled

Vladimir Pustovalov

Hi All,

I want to disable CPSW driver in menuconfig and use PRU ports for Ethernet for my am437x IDK, but it does not work. In boot log:

prueth 54400000.pruss:pruss1_eth: port 1: using random MAC addr: e6:21:cd:93:5e:e3
prueth 54400000.pruss:pruss1_eth: couldn't connect to phy /ocp/pruss@54400000/mdio@54432400/ethernet-phy@0
prueth 54400000.pruss:pruss1_eth: netdev init ethernet-mii0 failed: -19

In menuconfig I disabled "TI CPSW Switch Support". It looks like prueth is dependend on CPSW driver.

Is it possible to use prueth without CPSW?

CPSW will be used by EtherCAT Master stack

My env:

AM437x Industrial Development Kit (IDK)

Linux-RT Processor SDK for AM437x, v02.00.02

Thanks,

Vladimir

over 9 years ago

0 Cvetolin Shulev-XID over 9 years ago

TI__Guru 65405 points

Hi Vladimir,

Could you build linux kernel after 'make distclean' and applied configuration with disabled CPSW. Then check whether the ../linux-4.1.xxx/drivers/net/ethernet/ti/ti-prueth.o file presents. If it presents then the PRU ethernet is not related with CPSW.

BR
Tsvetolin Shulev

0 Vladimir Pustovalov over 9 years ago in reply to Cvetolin Shulev-XID

Prodigy 170 points

Hi Tsvetolin,

Sorry it was my fault. prueth wotks fine when CPSW is disabled.

The problem was in davinci_mdio. I had custom version of this file locally.

Thanks,
Vladimir

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prueth does not work when CPSW is disabled