From: David Vrabel <dvrabel@arcom.com>
To: Alex Williamson <alex.williamson@hp.com>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: serial: 8250 fails to detect Exar XR16L2551 correctly
Date: Thu, 14 Jul 2005 15:40:20 +0100 [thread overview]
Message-ID: <42D67954.70101@arcom.com> (raw)
In-Reply-To: <1121277829.4334.76.camel@tdi>
Alex Williamson wrote:
>
> David, would you mind
> trying this on the XR16L255x part? (ie. don't use console=ttyS, use
> console=uart,...) Thanks,
I wasn't even aware you could do this...
These are the serial ports I have:
ttyS0 at MMIO 0xc8000000 (irq = 15) is a XScale IXP425 internal
ttyS1 at MMIO 0xc8001000 (irq = 13) is a XScale " "
ttyS2 at MMIO 0x53000000 (irq = 21) is a XR16550 XR16L2551
ttyS3 at MMIO 0x53000008 (irq = 21) is a XR16550 "
I tried console=uart,mmio,0x53000000,115200 and my board didn't print
anything to the console and the boot failed somewhere before starting
network (I don't know exactly where or why since I couldn't see any
messages). Using console=ttyS2,115200 works fine.
What's 8250_early.c for anyway? console=ttyS... has always worked fine
for me.
David Vrabel
--
David Vrabel, Design Engineer
Arcom, Clifton Road Tel: +44 (0)1223 411200 ext. 3233
Cambridge CB1 7EA, UK Web: http://www.arcom.com/
next prev parent reply other threads:[~2005-07-14 14:41 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
2005-07-14 14:40 ` David Vrabel [this message]
2005-07-14 13:46 ` Russell King
2005-07-15 20:39 ` Alex Williamson
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