Date: Thu, 3 Sep 2015 15:16:22 +0100 From: John <freebsd-lists@potato.growveg.org> To: freebsd-arm@freebsd.org Subject: Re: some general questions regarding freebsd on rasp pi Message-ID: <20150903141622.GA42047@potato.growveg.org> In-Reply-To: <20150902134931.GA2221@potato.growveg.org> References: <20150901155024.GA46253@potato.growveg.org> <CANCZdfq4stZoMM_EtpZz0rw3DGwH18tMX-DanFRy-mud19noaQ@mail.gmail.com> <20150902134931.GA2221@potato.growveg.org>
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On Wed, Sep 02, 2015 at 02:49:31PM +0100, John wrote: > Just need to update ports and start building what I need. One answer i've not been able > to find - is it easy to clock the pi under freebsd? Looking for 1GHz > (think the ram is half this) in the grand tradition of answering myself, the way to do this with the rasp 2 hw.cpufreq.turbo=1 dev.cpu.0.freq=900 in /etc/sysctl.conf and reboot, or modify them directly. Now i have: # sysctl hw.cpufreq hw.cpufreq.temperature: 43312 hw.cpufreq.voltage_sdram_p: 1200000 hw.cpufreq.voltage_sdram_i: 1200000 hw.cpufreq.voltage_sdram_c: 1200000 hw.cpufreq.voltage_core: 1312500 hw.cpufreq.turbo: 1 hw.cpufreq.sdram_freq: 450000000 hw.cpufreq.core_freq: 250000000 hw.cpufreq.arm_freq: 900000000 and # sysctl dev.cpu dev.cpu.3.%parent: cpulist0 dev.cpu.3.%pnpinfo: name=cpu@3 compat=arm,cortex-a7 dev.cpu.3.%location: dev.cpu.3.%driver: cpu dev.cpu.3.%desc: Open Firmware CPU dev.cpu.2.%parent: cpulist0 dev.cpu.2.%pnpinfo: name=cpu@2 compat=arm,cortex-a7 dev.cpu.2.%location: dev.cpu.2.%driver: cpu dev.cpu.2.%desc: Open Firmware CPU dev.cpu.1.%parent: cpulist0 dev.cpu.1.%pnpinfo: name=cpu@1 compat=arm,cortex-a7 dev.cpu.1.%location: dev.cpu.1.%driver: cpu dev.cpu.1.%desc: Open Firmware CPU dev.cpu.0.temperature: 42.2C dev.cpu.0.freq_levels: 900/-1 600/-1 dev.cpu.0.freq: 900 dev.cpu.0.%parent: cpulist0 dev.cpu.0.%pnpinfo: name=cpu@0 compat=arm,cortex-a7 dev.cpu.0.%location: dev.cpu.0.%driver: cpu dev.cpu.0.%desc: Open Firmware CPU dev.cpu.%parent: not sure if it can be cranked any more. Any ideas? -- John
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