From: Alex Williamson <alex.williamson@hp.com>
To: Russell King <rmk+lkml@arm.linux.org.uk>
Cc: David Vrabel <dvrabel@arcom.com>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: serial: 8250 fails to detect Exar XR16L2551 correctly
Date: Wed, 13 Jul 2005 12:03:49 -0600 [thread overview]
Message-ID: <1121277829.4334.76.camel@tdi> (raw)
In-Reply-To: <1121274296.4334.58.camel@tdi>
On Wed, 2005-07-13 at 11:04 -0600, Alex Williamson wrote:
> Just trying to make sure that there's not a latent bug that we enable
> a bad sleep mode when the UART is being used for the console.
Yes, this is the problem. When a UART is specified as the console
using "console=uart,...", the console index is not initialized. This
causes the uart_console() check to mis-identify the port and we enable
sleep mode when we don't intend to do so. Not sure how to fix it yet,
but I assume we need to go back through after the serial ports are
enumerated, and un-suspend the console port. David, would you mind
trying this on the XR16L255x part? (ie. don't use console=ttyS, use
console=uart,...) Thanks,
Alex
--
Alex Williamson HP Linux & Open Source Lab
next prev parent reply other threads:[~2005-07-13 18:08 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
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 [this message]
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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