* Re: + ocotea-board-ntpd-complains-that-the-frequency-error-exceeds-the-tolerance.patch added to -mm tree
[not found] <200703161052.l2GAqIRV009441@shell0.pdx.osdl.net>
@ 2007-03-16 14:14 ` Kumar Gala
2007-03-16 14:34 ` Bart Van Assche
0 siblings, 1 reply; 3+ messages in thread
From: Kumar Gala @ 2007-03-16 14:14 UTC (permalink / raw)
To: bart.vanassche
Cc: linuxppc-dev@ozlabs•org ML, Paul Mackerras, Andrew Morton,
Stefan Roese
On Mar 16, 2007, at 5:52 AM, akpm@linux-foundation•org wrote:
>
> The patch titled
> Ocotea board: ntpd complains that the frequency error exceeds
> the tolerance
> has been added to the -mm tree. Its filename is
> ocotea-board-ntpd-complains-that-the-frequency-error-exceeds-
> the-tolerance.patch
>
> *** Remember to use Documentation/SubmitChecklist when testing your
> code ***
>
> See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt
> to find
> out what to do about this
>
> ------------------------------------------------------
> Subject: Ocotea board: ntpd complains that the frequency error
> exceeds the tolerance
> From: Bart Van Assche <bart.vanassche@gmail•com>
>
> Lifted from http://bugzilla.kernel.org/show_bug.cgi?id=8182
>
> Steps to reproduce:
> - Boot an Ocotea board with the mainline 2.6.20.1 kernel.
> - Create an /etc/ntp.conf file with at least one NTP server and
> iburst mode set.
> - Issue the command "ntpd -g".
> - Wait about two minutes.
> - Verify ntpd's status via "ntpq -pn" and by looking in /var/log/ntp.
>
> Patch that fixes this problem:
>
> Cc: Kumar Gala <galak@gate•crashing.org>
> Cc: Benjamin Herrenschmidt <benh@kernel•crashing.org>
> Cc: Paul Mackerras <paulus@samba•org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation•org>
> ---
>
> arch/ppc/platforms/4xx/ocotea.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff -puN arch/ppc/platforms/4xx/ocotea.c~ocotea-board-ntpd-
> complains-that-the-frequency-error-exceeds-the-tolerance arch/ppc/
> platforms/4xx/ocotea.c
> --- a/arch/ppc/platforms/4xx/ocotea.c~ocotea-board-ntpd-complains-
> that-the-frequency-error-exceeds-the-tolerance
> +++ a/arch/ppc/platforms/4xx/ocotea.c
> @@ -289,7 +289,7 @@ ocotea_setup_arch(void)
> * from FPGA, because it can be changed by on-board switches
> * --ebs
> */
> - ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
> + ibm440gx_get_clocks(&clocks, 33300000, 6 * 1843200);
> ocp_sys_info.opb_bus_freq = clocks.opb;
I asked Stefan & Josh to look at this and Stefan believes its a
33.33Mhz clock. So should this really be 33330000?
- k
>
> /* Setup TODC access */
> _
>
> Patches currently in -mm which might be from
> bart.vanassche@gmail•com are
>
> ocotea-board-ntpd-complains-that-the-frequency-error-exceeds-the-
> tolerance.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: + ocotea-board-ntpd-complains-that-the-frequency-error-exceeds-the-tolerance.patch added to -mm tree
2007-03-16 14:14 ` + ocotea-board-ntpd-complains-that-the-frequency-error-exceeds-the-tolerance.patch added to -mm tree Kumar Gala
@ 2007-03-16 14:34 ` Bart Van Assche
2007-03-16 14:40 ` Stefan Roese
0 siblings, 1 reply; 3+ messages in thread
From: Bart Van Assche @ 2007-03-16 14:34 UTC (permalink / raw)
To: Kumar Gala
Cc: linuxppc-dev@ozlabs•org ML, Paul Mackerras, Andrew Morton,
Stefan Roese
On 3/16/07, Kumar Gala <galak@kernel•crashing.org> wrote:
>
> On Mar 16, 2007, at 5:52 AM, akpm@linux-foundation•org wrote:
>
> >
> > The patch titled
> > Ocotea board: ntpd complains that the frequency error exceeds
> > the tolerance
> > has been added to the -mm tree. Its filename is
> > ocotea-board-ntpd-complains-that-the-frequency-error-exceeds-
> > the-tolerance.patch
> >
> > *** Remember to use Documentation/SubmitChecklist when testing your
> > code ***
> >
> > See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt
> > to find
> > out what to do about this
> >
> > ------------------------------------------------------
> > Subject: Ocotea board: ntpd complains that the frequency error
> > exceeds the tolerance
> > From: Bart Van Assche <bart.vanassche@gmail•com>
> >
> > Lifted from http://bugzilla.kernel.org/show_bug.cgi?id=8182
> >
> > Steps to reproduce:
> > - Boot an Ocotea board with the mainline 2.6.20.1 kernel.
> > - Create an /etc/ntp.conf file with at least one NTP server and
> > iburst mode set.
> > - Issue the command "ntpd -g".
> > - Wait about two minutes.
> > - Verify ntpd's status via "ntpq -pn" and by looking in /var/log/ntp.
> >
> > Patch that fixes this problem:
> >
> > Cc: Kumar Gala <galak@gate•crashing.org>
> > Cc: Benjamin Herrenschmidt <benh@kernel•crashing.org>
> > Cc: Paul Mackerras <paulus@samba•org>
> > Signed-off-by: Andrew Morton <akpm@linux-foundation•org>
> > ---
> >
> > arch/ppc/platforms/4xx/ocotea.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff -puN arch/ppc/platforms/4xx/ocotea.c~ocotea-board-ntpd-
> > complains-that-the-frequency-error-exceeds-the-tolerance arch/ppc/
> > platforms/4xx/ocotea.c
> > --- a/arch/ppc/platforms/4xx/ocotea.c~ocotea-board-ntpd-complains-
> > that-the-frequency-error-exceeds-the-tolerance
> > +++ a/arch/ppc/platforms/4xx/ocotea.c
> > @@ -289,7 +289,7 @@ ocotea_setup_arch(void)
> > * from FPGA, because it can be changed by on-board switches
> > * --ebs
> > */
> > - ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
> > + ibm440gx_get_clocks(&clocks, 33300000, 6 * 1843200);
> > ocp_sys_info.opb_bus_freq = clocks.opb;
>
> I asked Stefan & Josh to look at this and Stefan believes its a
> 33.33Mhz clock. So should this really be 33330000?
I have measured the clock frequency on the two Ocotea boards I have on
my desk, and both have a clock crystal of 33.3 MHz, not 33.33 MHz.
What I don't know is whether the same clock crystal is mounted on all
Ocotea boards.
Regards,
Bart Van Assche.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: + ocotea-board-ntpd-complains-that-the-frequency-error-exceeds-the-tolerance.patch added to -mm tree
2007-03-16 14:34 ` Bart Van Assche
@ 2007-03-16 14:40 ` Stefan Roese
0 siblings, 0 replies; 3+ messages in thread
From: Stefan Roese @ 2007-03-16 14:40 UTC (permalink / raw)
To: Bart Van Assche; +Cc: linuxppc-dev@ozlabs•org ML, Paul Mackerras, Andrew Morton
On Friday 16 March 2007 15:34, Bart Van Assche wrote:
> > I asked Stefan & Josh to look at this and Stefan believes its a
> > 33.33Mhz clock. So should this really be 33330000?
>
> I have measured the clock frequency on the two Ocotea boards I have on
> my desk, and both have a clock crystal of 33.3 MHz, not 33.33 MHz.
> What I don't know is whether the same clock crystal is mounted on all
> Ocotea boards.
Hmmm. From what I could read from the schematics, it should be 33.33MHz. But
here is always a gray zone. I'll ask AMCC, what is equipped right now.
Thanks.
Best regards,
Stefan
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2007-03-16 14:14 ` + ocotea-board-ntpd-complains-that-the-frequency-error-exceeds-the-tolerance.patch added to -mm tree Kumar Gala
2007-03-16 14:34 ` Bart Van Assche
2007-03-16 14:40 ` Stefan Roese
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