[meta-xilinx] Problem with Ethernet Clock Speed [dizzy]

[Mike Looijmans]

Remove "rtc" from MACHINE_FEATURES (which is accomplished by adding "rtc" to 
the corresponding "backfill"):

MACHINE_FEATURES_BACKFILL_CONSIDERED = "rtc"

(this should be part of the generic "zynq" machine, since the zynq doesn't 
have RTC hardware, boards that add an RTC chip, like the 702, should add "rtc" 
to MACHINE_FEATURES).

This gets rid of the attempts to call the RTC in the image.

On 16-04-15 10:59, Nathan Rossi wrote:
> On Thu, Apr 16, 2015 at 12:38 AM, SMITH Peter T
> <peter.t.smith at alstom.com> wrote:
>> Nathan,
>>
>> Thanks that's sorted the problem.
>>
>> I guess that the following is expected behaviour in qemu?
>>
>> hwclock: can't open '/dev/misc/rtc': No such file or directory
>
> Yep, that error is from the busybox-hwclock startup script. It occurs
> because the qemuzynq machine has no RTC.
>
> Regards,
> Nathan
>
>>
>> Peter
>>
>> 

Kind regards,

Mike Looijmans
System Expert

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-----Original Message-----
>> From: Nathan Rossi [mailto:nathan at nathanrossi.com]
>> Sent: 15 April 2015 12:15
>> To: Magne Munkejord
>> Cc: SMITH Peter T; meta-xilinx at yoctoproject.org
>> Subject: Re: [meta-xilinx] Problem with Ethernet Clock Speed [dizzy]
>>
>> On Wed, Apr 15, 2015 at 9:03 PM, Magne Munkejord <magne.munkejord at gmail.com> wrote:
>>> Hi
>>>
>>> from Nathan Rossi's post on this list Jan 8 this year: runqemu
>>> qemuzynq nogprahic bootparams="loglevel=4"
>>
>> That should help suppress the message for now so that you can use QEMU.
>>
>> I have a fix for this issue that doesn't require hacking QEMU or the kernel itself. Just want to make sure it doesn't cause any regressions before applying it, but it will be available with the next BSP release (and I will most likely backport it as well).
>>
>> Regards,
>> Nathan
>>
>>>
>>> On Tue, Apr 14, 2015 at 4:30 PM, SMITH Peter T
>>> <peter.t.smith at alstom.com>
>>> wrote:
>>>>
>>>> Hi,
>>>>
>>>>
>>>>
>>>> I have used Yocto (dizzy) and meta-xilinx (dizzy) to build machine
>>>> qemuzynq.
>>>>
>>>>
>>>>
>>>> The build proceeded without issue. However when I start qemu with
>>>> “runqemu qemuzynq serial” I get a continuous stream of Ethernet clock
>>>> setting failure as shown below.
>>>>
>>>>
>>>>
>>>> [  692.119128] macb e000b000.ps7-ethernet eth0: unable to generate
>>>> target
>>>> frequency: 125000000 Hz
>>>>
>>>>
>>>>
>>>> How do I fix this.
>>>>
>>>>
>>>>
>>>> Regards
>>>>
>>>> Peter
>>>>
>>>>
>>>>
>>>>
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