From: Clem Taylor <clem.taylor@gmail.com>
To: linux-mips@linux-mips.org
Subject: Re: reboot gets stuck in a TLB exception on Au1550 based board [resolved but not explained]
Date: Tue, 12 Jul 2005 22:24:51 -0400 [thread overview]
Message-ID: <ecb4efd1050712192448e247b1@mail.gmail.com> (raw)
In-Reply-To: <ecb4efd105071217254e68b9e2@mail.gmail.com>
On 7/12/05, Clem Taylor <clem.taylor@gmail.com> wrote:
> I was wondering if anyone else has a problem with reboot not working
> on a Au1550? When I issue a reboot, the kernel prints "** Resetting
> Integrated Peripherals", but the system doesn't reboot.
It seems that my problem was related to turning off sys_auxpll, which
is the clock source for the PCI bus. If I just comment out the write
to sys_auxpll in au1000_restart() then the reboot seems to work just
fine. I'm not sure why disabling the PCI clock would cause yamon to
take a TLB fault... I guess I need to hook up the analyzer and see
what happens to the PCI devices when the PCI clock goes away.
Thanks for the suggestions,
Clem
prev parent reply other threads:[~2005-07-13 2:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-13 0:25 reboot gets stuck in a TLB exception on Au1550 based board Clem Taylor
2005-07-13 0:46 ` Dan Malek
2005-07-13 2:24 ` Clem Taylor [this message]
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