From: Russell King <rmk@arm.linux.org.uk>
To: Brian Murphy <brian@murphy.dk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: early_serial_setup is broken in the 2.5 series
Date: Sun, 15 Dec 2002 15:07:52 +0000 [thread overview]
Message-ID: <20021215150752.A6486@flint.arm.linux.org.uk> (raw)
In-Reply-To: <3DFC921C.1030302@murphy.dk>; from brian@murphy.dk on Sun, Dec 15, 2002 at 03:30:52PM +0100
On Sun, Dec 15, 2002 at 03:30:52PM +0100, Brian Murphy wrote:
> As far as I can see early_serial_setup should be capable of being
> used to dynamically setup a serial port at any time in the boot
> process - this is certainly the case in the 2.4 kernels.
>
> However if it is used during architecture initialization, for example,
> then the serial8250_reg uart driver has not been registered and
> initialized even though it is used in the early_serial_setup call.
>
> What was wrong with the 2.4 implimentation where the registered
> serial ports were saved until the serial driver was ready to use them?
Its broken at present. Last I heard, Khalid is working on a fix (since
he has the hardware to be able to test it, its sensible that I wait
until he has a fix.)
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
prev parent reply other threads:[~2002-12-15 15:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-15 14:30 early_serial_setup is broken in the 2.5 series Brian Murphy
2002-12-15 15:07 ` Russell King [this message]
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