File:  [NetBSD Developer Wiki] / wikisrc / ports / evbarm / raspberry_pi.mdwn
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Sun Mar 3 22:41:49 2013 UTC (13 months, 1 week ago) by wiki
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[[!meta title="NetBSD/evbarm on Raspberry Pi"]]

[[images/raspberrypi.jpg]]

This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org).

(Raspberry Pi [image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)

# Installation
 - You may use the rpi.img file created by an arm build.
   - An example can be found in the '/evbarm/binary/gzimg/' directory under releng.netbsd.org

# Updating the firmware
 - [rpi firmware files](https://github.com/raspberrypi/firmware/tree/master/boot)
   - Copy all files except 'kernel*img' into /boot and reboot

# Additional links
 - [ARM userland utilities](https://github.com/jaredmcneill/userland)
 - [Additional kernel drivers for VCHIQ](https://github.com/jaredmcneill/vchiq-netbsd)

# What works
 - multi-user boot with root on SD card
 - serial or graphics console (with EDID query / parsing)
 - X windows.
 - USB (host); control, interrupt and bulk transfers. Has some stability issues that are being worked on. man page missing.
 - USB Ethernet
 - RNG: works
 - I²C: works, could use enhancements, man page
 - SPI: works, could use enhancements, man page

# What needs work
 - VCHIQ; work in progress - will provide audio.
 - USB (host); isochronous transfers. DMA support.
 - DMA controller driver / dmover(9) backend
 - Teach sdhc(4) about dmover; not Raspberry Pi specific
 - hardfloat; not Raspberry Pi specific
 - earm ABI; not Raspberry Pi specific
 - GPIO

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