Date: Tue, 28 Oct 2014 23:49:18 -0700 From: Rui Paulo <rpaulo@me.com> To: Daisuke Aoyama <aoyama@peach.ne.jp> Cc: freebsd-arm@freebsd.org Subject: Re: FreeBSD 11-CURRENT on Raspberry Pi 512MB Message-ID: <C9E25385-E665-4895-96CE-DCC71B36FF3B@me.com> In-Reply-To: <0A8390C3FC2B444B9AA8AC934B79DCD6@ad.peach.ne.jp> References: <0A8390C3FC2B444B9AA8AC934B79DCD6@ad.peach.ne.jp>
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On Oct 28, 2014, at 18:20, Daisuke Aoyama <aoyama@peach.ne.jp> wrote: >=20 > I've created FreeBSD 11-CURRENT for RPi based on svn 273303. >=20 > The first version is released at my Japanese blog: >=20 > Download and tips > http://shell.peach.ne.jp/aoyama/archives/2931 > Initial setup of FreeBSD 11 on RPi > http://shell.peach.ne.jp/aoyama/archives/2946 > Package installation of Apache 2.4(event MPM), MySQL 5.6, PHP 5.6(ZTS) = and phpMyAdmin. > http://shell.peach.ne.jp/aoyama/archives/2951 >=20 > The pre-build base images are available from my archives: > http://www.peach.ne.jp/archives/rpi/ > (Latest version is = FreeBSD-armv6-11.0-RPI-B-test20-r273303-20141026.img.gz) >=20 > Download and decompress it, then write it to an SD card of 8GB or = more. > This image is intended to use as a headless server. (No X11 and GPU = 16MB) > For quick playing, I provide some useful packages such as samba 4.1, = AMP. >=20 > This version have cpufreq(4) based frequency contoller. > Clock frequencies can be dynamically changed by hand or powerd. > Also realtime raw values including temperature are stored in = hw.cpufreq: >=20 > Example overclock at 1000MHz: >=20 > # sysctl hw.cpufreq > hw.cpufreq.arm_freq: 1000000000 > hw.cpufreq.core_freq: 500000000 > hw.cpufreq.sdram_freq: 500000000 > hw.cpufreq.turbo: 1 > hw.cpufreq.voltage_core: 6 > hw.cpufreq.voltage_sdram_c: 1 > hw.cpufreq.voltage_sdram_i: 1 > hw.cpufreq.voltage_sdram_p: 1 > hw.cpufreq.temperature: 50843 >=20 > # sysctl dev.cpu > dev.cpu.%parent: > dev.cpu.0.%desc: Open Firmware CPU > dev.cpu.0.%driver: cpu > dev.cpu.0.%location: > dev.cpu.0.%pnpinfo: name=3Dcpu@0 compat=3Darm,1176jzf-s > dev.cpu.0.%parent: cpulist0 > dev.cpu.0.freq: 300 > dev.cpu.0.freq_levels: 1000/-1 900/-1 800/-1 700/-1 600/-1 500/-1 = 400/-1 300/-1 >=20 >=20 > Note: > Do not build kernel without patch to bcm2835_mbox.c, otherwise you get = a panic in msleep. >=20 > Using config is here: > http://www.peach.ne.jp/archives/rpi/config/RPI-B-test20 >=20 > Source and pacth is here: > http://www.peach.ne.jp/archives/rpi/patch/ >=20 > Local packages is here: > http://www.peach.ne.jp/archives/rpi/ports/packages/All/ >=20 >=20 > Pre-configured: >=20 > MEM 496MB/GPU 16MB/SWAP none > Clock: ARM 800MHz/Core 400MHz/SDRAM 400MHz (overclock from = 700/250/400) > ntpdate: 0.freebsd.pool.ntp.org > portsnap: fetch and extracted > powerd: enabled (min 300MHz) >=20 > See also: > http://www.peach.ne.jp/archives/rpi/00README.txt This is pretty interesting. Is anyone already helping you merge your = code to FreeBSD? Some questions: - Did you measure the power consumption when using the different = frequency values? - Could you also export the temperature in dev.cpu.0.temperature like = coretemp/amdtemp? You'd need to perform a device lookup and then lookup = its sysctl context. One suggestion I have is to move the register definition structures to a = header file like bcm2835_cpufreq.h. There are some style issues with your patch, but I think it's pretty = close to being ready. -- Rui Paulo
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