From: Russell King <rmk+lkml@arm.linux.org.uk>
To: Alex Williamson <alex.williamson@hp.com>
Cc: David Vrabel <dvrabel@arcom.com>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: serial: 8250 fails to detect Exar XR16L2551 correctly
Date: Mon, 11 Jul 2005 20:46:46 +0100 [thread overview]
Message-ID: <20050711204646.D1540@flint.arm.linux.org.uk> (raw)
In-Reply-To: <1121108408.28557.71.camel@tdi>; from alex.williamson@hp.com on Mon, Jul 11, 2005 at 01:00:08PM -0600
On Mon, Jul 11, 2005 at 01:00:08PM -0600, Alex Williamson wrote:
> On Thu, 2005-07-07 at 14:20 +0100, David Vrabel wrote:
>
> > I've redid the patch and added a check for this. Alex, could you test
> > this version, please.
>
> This detects the A2 ST16C255x as an XR16550, so apparently the sleep
> check doesn't work. I contacted Exar about these two seemingly
> identical UARTs, and they say that the A2 ST16C255x should be compatible
> with the XR16550 so perhaps we don't need to special case the A2 UART at
> all. Unfortunately, when I use the UART for a console, I get garbled
> output from the time the UART is detected until we hit userspace.
There was a bug in this area - does it happen with latest and greatest
kernels?
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
next prev parent reply other threads:[~2005-07-11 19:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-05 14:19 serial: 8250 fails to detect Exar XR16L2551 correctly David Vrabel
2005-07-06 18:57 ` Russell King
2005-07-06 20:20 ` Alex Williamson
2005-07-07 13:20 ` David Vrabel
2005-07-11 19:00 ` Alex Williamson
2005-07-11 19:46 ` Russell King [this message]
2005-07-11 20:00 ` Alex Williamson
2005-07-11 20:17 ` Russell King
2005-07-11 21:17 ` Alex Williamson
2005-07-13 17:04 ` Alex Williamson
2005-07-13 18:03 ` Alex Williamson
2005-07-14 14:40 ` David Vrabel
2005-07-14 13:46 ` Russell King
2005-07-15 20:39 ` Alex Williamson
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