Date: Sun, 30 Jan 2005 16:58:39 +0000
From: Ralf Baechle <ralf@linux-mips.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>, akpm@osdl.org,
       linux-kernel@vger.kernel.org, bunk@stusta.de
Subject: Re: [PATCH] Fix SERIAL_TXX9 dependencies
Message-ID: <20050130165839.GB27703@linux-mips.org>
References: <20050129131134.75dacb41.akpm@osdl.org> <20050130001555.GA3648@linux-mips.org> <20050130.220537.45151614.anemo@mba.ocn.ne.jp> <200501301645.14069.arnd@arndb.de>
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On Sun, Jan 30, 2005 at 04:45:08PM +0100, Arnd Bergmann wrote:

> > Well, "depends on MIPS || PCI" was intentional.  The driver can be
> > used for both TX39/TX49 internal SIO and TC86C001 PCI chip.  TC86C001
> > chip can be available for any platform with PCI bus (though I have
> > never seen it on platform other than MIPS ...)
>  	
> There is at least one device that uses the same uart on a non-MIPS
> platform. I'll submit a patch once I have it working.
> 
> > So I suppose "depends on HAS_TXX9_SERIAL || PCI" might be better, but
> > Ralf's patch will be OK for now.
> 
> Right. There is however one bigger problem with the original patch:
> It removes the driver for tx3912 and adds one for tx3927/tx49xx.
> AFAICS, the 3912 has a very different register layout from the other
> chips, so the old driver must not be removed yet.

Hmm...  Atushi sent me this new-style serial driver when I asked him for
replacements for the old style drivers in drivers/char/ so my undertanding
was it was a full replacement for all of them.  I'll check on the tx3912
and will try to send an update later today.

  Ralf
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