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Enabling i2c on FreeBSD Wandboard
FreeBSD-11 has support for i2c on Wandboard. The working boot image is here, and the boot log is here. In order to enable it, there were three steps Enable the kernel options Update the files.imx6 file Create the DTS mappings The kerne config for Wandboard-Quad is here, however, most of the kernel options for Wandboard…
FreeBSD Wandboard, new build with multicore
The FreeBSD ARM team have completed the work to support multicore on ARM. You can read the announcement here. I’ve made a new build of FreeBSD ARM for Wandboard, which you can download here. The dmesg output is here, and here is the sysctl showing four cores [Kroot@wandboard:~ # sysctl -a | grep hw.ncpu hw.ncpu:…
Spelunking the FreeBSD ARM FDT
The FDT is the “Flattened Device Tree”, a simple device tree used in embedded FreeBSD, for example on a Pi. Every architecture has a DTS file, which contains a human-readable list of hardware for that architecture. For example, the Pi FTD is here. You should notice that there are declarations for: cpu axi (the…
FreeBSD Jail filesystems
I’ve been using FreeBSD jails for a while, and was looking for a simple way to create jail filesystems. After some reading, I came up with this simple script which creates full FreeBSD filesystems. The filesystem can then be used via jail.conf. #!/bin/bash JAILNAME=$1 echo “kjail “$1 JAIL_HOME=/tank/kjail/ FTP=http://ftp.freebsd.org/pub/FreeBSD/releases/amd64/11.1-RELEASE/ # # get packages # if…
How does the Crochet-FreeBSD ARM boot work?
Introduction This is my 3rd blog posting on the topic of the Crochet-FreeBSD ARM boot process. The other two are here and here. At long last, I have the Crochet-FreeBSD build for Wandboard working properly, with U-boot and ubldr. This article will serve, I hope, to document the entire process and give others a…
Updated FreeBSD Wandboard Build
This build is for FreeBSD-11, Alpha 2. Binary image, and bootlog.