kernel 2.6.15: cpm_uart driver broken?

Dan Malek dan at
Thu Apr 20 07:14:27 EST 2006

On Apr 19, 2006, at 4:40 PM, Kenneth Poole wrote:

> .....  we avoid having to do those
> conversions all of the time.

You are still doing a very similar conversion, only with
different addresses and offsets, and more compute

> I assumed that this test was simply to exclude console ports from
> conversion.

Bad assumption.  It's done to be able to use buffers allocated out
of the CPM memory or before the VM is sufficiently configured to
relocate the buffers.   This is needed for early debug prints, xmon,
and kgdb.

These modifications further remove features that have been
part of past kernels, and it has to stop.


	-- Dan

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