[PATCH][BUGFIX][2.4.21] Fix PPC4xx Ethernet problem

Eugene Surovegin ebs at ebshome.net
Tue Apr 22 02:27:09 EST 2003

At 06:35 AM 4/21/2003, KISHINAMI Masaya wrote:

>Attached file is effective the failure not to generate the receive
>completion interruption from EMAC to 405GP On-chip LAN device driver.
>The failure condition is as follows.
>- custom board designed based on the 405GP
>- kernel 2.4.18
>- 2.4.21 pre3 ibm_ocp LAN device driver and ported it to
>   work on kernel 2.4.18
>- repeater hub(10Mbps, half duplex)
>- line is much loaded
>The modification was applied from 2.4.21 pre3.
>Please see the follows URL. It describes in detail.
>Please apply attached file.

This change looks very strange.

1) Did you try your tests on the reference 405GP board (Walnut) ?
    Maybe it's not a driver problem but your custom board.

2) Did you contact IBM? If yes, what did they say?

3) Did you try new PPC 4xx ethernet driver in linuxppc-2.4 tree



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