From: Timur Tabi <timur@freescale.com>
To: <linuxppc-dev@lists.ozlabs.org>,
devicetree-discuss <devicetree-discuss@ozlabs.org>,
<linux-fbdev@vger.kernel.org>
Subject: Login prompt on a video console instead of serial port?
Date: Mon, 2 May 2011 14:30:36 -0500 [thread overview]
Message-ID: <4DBF065C.3030407@freescale.com> (raw)
I'm using a Freescale P1022DS (PowerPC e500 core) system, which has a built-in
video controller. I have a framebuffer driver that works fine, and if I add
"video=fslfb:1280x1024-32@60,monitor=0 console=tty0" to the command-line, then
*most* of the kernel boot log appears on the serial port and the video display.
However, the login prompt is always on the serial port. This happens even if I
delete the "console=ttyS0,115200" from the command-line. I presume this is
because the "linux,stdout-path" property in the device tree always points to a
serial port node.
So my question is: what do I need to do get the login prompt on the video
console? That is, stdout goes to /dev/fb0 but stdin is still from /dev/ttyS0.
I presume I need to direct "linux,stdout-path" to the fslfb node in the device
tree, but there doesn't appear to be support for "linux,stdin-path".
--
Timur Tabi
Linux kernel developer at Freescale
next reply other threads:[~2011-05-02 19:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-02 19:30 Timur Tabi [this message]
2011-05-02 19:55 ` Login prompt on a video console instead of serial port? McClintock Matthew-B29882
2011-05-02 20:02 ` Timur Tabi
2011-05-03 5:41 ` Benjamin Herrenschmidt
2011-05-02 20:12 ` Grant Likely
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