2.4.18: CPM1 stops when initializing ATM/UTOPIA.

[Alex Zeffertt]

It may be that you're getting a conflict in SCC usage.  Make sure you
have CONFIG_SERIAL_ATM undefined.  But if you really need it make sure
CONFIG_SERIAL_ATM_SCC is not used by anything else.  You may also want
to disable CONFIG_PTP_SWITCHING if you don't need it.  Finally you
probably want CONFIG_PHY_OTHER instead of CONFIG_PHY_SUNI_155 or
CONFIG_PHY_ATM_25.  These latter options make assumptions about the
memory mapping of your phy.

Note: a long while ago we had problems with PTP switching causing hangs
but this was fixed by a ucode patch from motorola.  If you really need
PTP switching you should get this.

Alex


On Fri, 06 May 2005 20:41:53 +0200
Theo Gjaltema <gjalt007 at chello.nl> wrote:

> Hi,
> 
> Last week I was trying to integrate the atm/utopia driver
> (sourceforce) into a 2.4.18 kernel build for a 862, but mij attemtps
> failed. It appeared that wen on the first location of the SCC4 (now
> used for utopia) a buffer address is written, most CPM activities are
> halted, including the SCM1 which I used as console port. The console
> driver did write in the allocated buffer descriptors, but the
> tranmission of the data was never acknowledged, thus hanging the
> kernel.
> 
> Anyone an idea what happened?
> 
> Theo.
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