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Subject: Re: rpi2: cpufreq(4) support lost ?
To: "Herbert J. Skuhra" <herbert@mailbox.org>
Cc: freebsd-arm@freebsd.org
References: <2bceba56-f6a8-5120-fac5-0d3387a8278d@orange.fr>
 <87a7zrgvzv.wl-herbert@mailbox.org>
From: Claude Buisson <clbuisson@orange.fr>
Message-ID: <2cedd4c6-1db0-04e7-b131-b0f0fc2f0500@orange.fr>
Date: Sun, 12 Nov 2017 23:30:41 +0100
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On 11/12/2017 20:03, Herbert J. Skuhra wrote:
> On Sat, 11 Nov 2017 12:47:47 +0100,
> Claude Buisson <clbuisson@orange.fr> wrote:
>>
>> [I am not subscribed to this list - please answser to me]
>>
>> I recently upgraded a RPI2 Model B, from head r323691 armv6 to head
>> r325110 + patch D12907 (lib/libc/gen/tls.c) armv7.
>>
>> In the dmesg, the lines:
>>
>> bcm2835_cpufreq0: <CPU Frequency Control> on cpu0
>> bcm2835_cpufreq0: ARM 600MHz, Core 250MHz, SDRAM 400MHz, Turbo OFF
>>
>> disappeared, and the log shows:
>>
>> /etc/rc.d/powerd start
>> powerd: no cpufreq(4) support -- aborting: No such file or directory
>>
>> As what seems to be a consequence, the system became much slower.
>>
>> Everything came back to normal when I copied the old rpi2.dtb to the
>> new /boot/msdos/
> 
> The old rpi2.dtb is from an armv6 build, right?

Yes: from head r323691 armv6 as documented supra

> 
>> I tried the rpi2.dtb from the lastest snapshot
>>    FreeBSD-12.0-CURRENT-arm-armv7-RPI2-20171109-r325595.img
>> and cpufreq(4) disappeared again.
>>
>> What I am missing ?
> 
> The problem obviously exists since the switch to armv7.
> 
> I use rpi2.dtb from my other RPI2 (stable/11).
> 
> --
> Herbert
>