SOEKRIS image for FreeBSD-11

How the FDT works In specific, I’m looking at this file bcm2835.dtsi which contains the hardware definitions for the BCM2835, the SOC which powers a Raspberry Pi. Primarily, i’m interested in how to read it.   To really make sense of this, you should have this pdf at hand; it’s the hardware manual for BCM2835.  If…

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:…

Available here.    

The FDT file for Raspberry Pi, declares UART.  I’ve had quite a bit of trouble understanding how declaring a uart in the FDT results in /dev/tty0 and /dev/cuau0 appearing in /dev/ Here are the relevant lines from the FDT: uart0: uart0 { compatible = “broadcom,bcm2835-uart”, “broadcom,bcm2708-uart”, “arm,pl011”, “arm,primecell”; reg = <0x201000 0x1000>; interrupts = <65>;…

There is no official pkgng repo for FreeBSD-arm, yet.  There is an unofficial one, here, however in order to use it, you have to have pkgng installed.  As far as I can tell, the only way to install pkgng on ARM is to builds and install from source. On the platform I’m using, Wandboard, the…

Some time ago I was part of the effort to add Wandboard support to Crochet-FreeBSD.   I wrote a blog posting about it here.   An explanation of how Crochet-FreeBSD boots the Wandboard is below: The Wandboard uses U-Boot as its initial boot-loader.  A number of patches to the U-Boot source are required, and you…