From: Ralf Baechle <ralf@linux-mips.org>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@linux-mips.org
Subject: Re: [PATCH] JAZZ: disable PIT; cleanup R4030 clockevent
Date: Thu, 1 Nov 2007 15:07:41 +0000 [thread overview]
Message-ID: <20071101150741.GA8570@linux-mips.org> (raw)
In-Reply-To: <20071101125236.GA16577@alpha.franken.de>
On Thu, Nov 01, 2007 at 01:52:36PM +0100, Thomas Bogendoerfer wrote:
> PIT doesn't work, disable it completly
I think this is the explanation:
include/asm-mips/mach-jazz/timex.h:#define CLOCK_TICK_RATE 100
while the PIT code actually expects 1193182.
Turns out that due to a recent Qemu bug which made the probe for the cp0
compare interrupt fail the Malta code did fall back from the compare timer
to the i8253 PIT for the clockevent device. Works perfectly well.
Ralf
next prev parent reply other threads:[~2007-11-01 15:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-01 12:52 [PATCH] JAZZ: disable PIT; cleanup R4030 clockevent Thomas Bogendoerfer
2007-11-01 15:07 ` Ralf Baechle [this message]
2007-11-01 16:02 ` Ralf Baechle
2007-11-02 10:17 ` Thomas Bogendoerfer
2007-11-02 12:20 ` Ralf Baechle
2007-11-02 22:08 ` Thomas Bogendoerfer
2007-11-04 0:33 ` Ralf Baechle
2007-11-04 10:05 ` Thomas Bogendoerfer
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