OpenBSD Multimedia Resources List
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Rafal Jaworowski - Interfacing embedded FreeBSD with U-Boot
Source: BSDCan - The Technical BSD Conference
Added: 21 May 2008
Tags: bsdcan, bsdcan2008, slides, embedded, freebsd, u-boot, rafal jaworowski
PDF file (300 Kb, 26 pages)
Interfacing embedded FreeBSD with U-Boot
Working with the de facto standard for an initial level boot loader
In the embedded world U-Boot is a de facto standard
for an initial level boot loader (firmware). It
runs on a great number of platforms and architectures,
and is open source.
This talk covers the development work on integrating
FreeBSD with U-Boot-based systems. Starting with
an overview of differences between booting an
all-purpose desktop computer vs. embedded system,
FreeBSD booting concepts are explained along with
requirements for the underlying firmware.
Historical attempts to interface FreeBSD with this
firmware are mentioned and explanation given on why
they failed or proved incomplete. Finally, the
recently developed approach to integrate FreeBSD
and U-Boot is presented, with implementation details
and particular attention on how it's been made
architecture and platform independent, and how
loader(8) has been bound to it.