From: Peter Hurley <peter@hurleysoftware.com>
To: Bin Gao <bin.gao@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
Jiri Slaby <jslaby@suse.cz>, Paul Bolle <pebolle@tiscali.nl>,
linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 1/2] serial_core: add pci uart early console support
Date: Sun, 28 Jun 2015 16:44:49 -0400 [thread overview]
Message-ID: <55905CC1.7020106@hurleysoftware.com> (raw)
In-Reply-To: <20150608181711.GA181146@worksta>
On 06/08/2015 02:17 PM, Bin Gao wrote:
> On some Intel Atom SoCs, the legacy IO port UART(0x3F8) is not available.
> Instead, a 8250 compatible PCI uart can be used as early console.
> This patch adds pci support to the 8250 early console driver uart8250.
> For example, to enable pci uart(00:21.3) as early console on these
> platforms, append the following line to the kernel command line
> (assume baud rate is 115200):
> earlyprintk=uart8250,pci32,0:24.2,115200n8
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
next prev parent reply other threads:[~2015-06-28 20:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-29 18:38 [PATCH v5 1/2] serial_core: add pci uart early console support Bin Gao
2015-06-08 18:17 ` [PATCH v6 " Bin Gao
2015-06-28 20:44 ` Peter Hurley [this message]
2015-07-23 22:21 ` Greg Kroah-Hartman
2015-07-27 23:33 ` Bin Gao
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