From: Vitaly Bordug <vbordug@ru.mvista.com>
To: linuxppc-embedded@ozlabs.org
Subject: Re: block after "io scheduler noop registered"
Date: Wed, 28 Jun 2006 21:48:41 +0400 [thread overview]
Message-ID: <20060628214841.311060c6@vitb.ru.mvista.com> (raw)
In-Reply-To: <J1KRSY$2A22F25EF5BB111FA515FFA9A4DCCD71@libero.it>
On Wed, 28 Jun 2006 16:48:34 +0200
"morelli.gab" <morelli.gab@libero.it> wrote:
> Hi All,
>
> i,m upgrading the linux kernel 2.4 from 2.6, during the phase of restart on my card the system blocks on message "io scheduler noop registered".
> the board mount MPC875 processor
>
>
> ...
> Serial: CPM driver $Revision: 0.01 $
> ttyCPM0 at MMIO 0xf0000a80 (irq = 20) is a CPM UART
> ttyCPM1 at MMIO 0xf0000a90 (irq = 19) is a CPM UART
> io scheduler noop registered
You should add the proper cpm uart initialization bits to the board-specific code, as say 885ads does (ppc/platforms/mpc885ads_setup.c).
What experienced is uart misconfiguration which alters pins in a way the console doesn't like very much.
--
Sincerely,
Vitaly
prev parent reply other threads:[~2006-06-28 17:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-28 14:48 block after "io scheduler noop registered" morelli.gab
2006-06-28 17:48 ` Vitaly Bordug [this message]
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