Subject: Re: Serial Port 0 IRQ0 Walnut question

From: "David Müller (ELSOFT AG)" <[email-masked]>
Date: Thu, 01 Nov 2001 13:12:56 +0100

Ralph Blach wrote:

> Has anybody noticed that the serial port 0 is not being interrupt
> driven.
> On my Journeyman kernel here, IRQ 0 lists as bad and the UIC enable bit
> for IRQ 0 is not
> turned on.
>
> Any reason for this
>
> Thanks
>
> Chip
>

The serial.c driver from linux-2.4.2-405pg (original MVista 405GP
kernel) was patched to allow IRQ 0 as a valid IRQ. For some reason, this
patch didn't make it into the linuxppc_2_4_dev tree.

Dave

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