From: Paolo Bonzini <pbonzini@redhat.com>
To: "Richard W.M. Jones" <rjones@redhat.com>,
Laurent Vivier <lvivier@redhat.com>
Cc: qemu-devel@nongnu.org, David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [Qemu-devel] [PATCH] i6300esb: correctly convert watchdog clock ticks into nanoseconds
Date: Mon, 3 Aug 2015 17:02:48 +0200 [thread overview]
Message-ID: <55BF8298.9080409@redhat.com> (raw)
In-Reply-To: <20150803144637.GQ29283@redhat.com>
On 03/08/2015 16:46, Richard W.M. Jones wrote:
>> > I'm wondering if a 33 Mhz clock is 33000000 Hz or 33333333 Hz ?
> From the datasheet (chapter 16):
>
> https://www-ssl.intel.com/content/www/us/en/chipsets/6300esb-io-controller-hub-datasheet.html
>
> it says "33 MHz clock (30 ns clock ticks)" which is contradictory.
I found that the spec allows for any speed up to 33333333 Hz (30 ns
cycle), so both are okay. However, at least hw/net/rtl8139.c assumes
it's 33000000 Hz, so it's nice to be consistent.
Paolo
next prev parent reply other threads:[~2015-08-03 15:02 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-03 13:52 [Qemu-devel] [PATCH] i6300esb: correctly convert watchdog clock ticks into nanoseconds Laurent Vivier
2015-08-03 14:28 ` Laurent Vivier
2015-08-03 14:46 ` Richard W.M. Jones
2015-08-03 15:02 ` Paolo Bonzini [this message]
2015-08-03 15:13 ` Laurent Vivier
2015-08-03 15:18 ` Paolo Bonzini
2015-08-03 15:35 ` Laurent Vivier
2015-08-03 16:06 ` Paolo Bonzini
2015-08-03 15:06 ` Laurent Vivier
2015-08-04 8:27 ` [Qemu-trivial] [PATCH][TRIVIAL] i6300esb: fix timer overflow Laurent Vivier
2015-08-04 8:27 ` [Qemu-devel] " Laurent Vivier
2015-08-04 13:47 ` [Qemu-trivial] " Richard W.M. Jones
2015-08-04 13:47 ` [Qemu-devel] " Richard W.M. Jones
2015-08-05 0:01 ` [Qemu-trivial] " David Gibson
2015-08-05 0:01 ` [Qemu-devel] " David Gibson
2015-09-06 10:29 ` [Qemu-trivial] " Michael Tokarev
2015-09-06 10:29 ` [Qemu-devel] " Michael Tokarev
2015-09-06 14:35 ` [Qemu-trivial] " Paolo Bonzini
2015-09-06 14:35 ` [Qemu-devel] " Paolo Bonzini
2015-09-06 14:41 ` [Qemu-trivial] " Laurent Vivier
2015-09-06 14:41 ` Laurent Vivier
2015-08-04 10:13 ` [Qemu-devel] [PATCH] i6300esb: correctly convert watchdog clock ticks into nanoseconds Richard W.M. Jones
2015-08-04 10:25 ` Laurent Vivier
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