1: [[!meta title="NetBSD/evbarm on Raspberry Pi"]]
5: This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org).
7: <small>([Raspberry Pi image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)</small>
9: # Installation
10: - You may use the rpi.img file created by an arm build.
11: - An example can be found in the '/evbarm/binary/gzimg/' directory under releng.netbsd.org
12: - 'obj/releasedir/evbarm/binary/gzimg/' if you run (for example) './build.sh -m evbarm -u release'
13: - <i>gunzip and dd</i> this img to your sd card.
15: dd if=rpi.img of=/dev/disk1
17: - Using a serial console
18: - By default the rpi.img is set to use the HDMI output; to change mount rpi.img (it's a FAT filesystem)
20: edit cmdline.txt and remove '"console=fb"'
21: - proceed with the 'dd'
23: - Growing the root file-system
24: - Copy /boot/cmdline.txt to /boot/cmdline.txt.orig
25: - Edit /boot/cmdline.txt and add the '-s' flag to the end of the first line of text to boot into single-user mode.
26: - Reboot, and at the prompt to enter the passname of shell, press
27: return for the default (/bin/sh).
28: - At the # prompt, type
30: "disklabel -i ld0" and press return.
31: - At the partition> prompt type "A" and press return.
33: Adjust disklabel sector from 4194304 to 62333952 [n]?
34: Type "y" and press return.
35: - partition> prompt type "a" and press return.
37: Filesystem type prompt, press return to use the current value (4.2BSD).
38: Start offset prompt, press return to use the current value.
39: Partition size prompt, type "$" and press return to grow the
40: partition to use all available free space.
41: - partition> prompt type "W" to save the changes to the disklabel.
43: Confirm this choice by typing "y" at the Label disk prompt.
44: Type "Q" and press return to quit disklabel.
45: - At the # prompt (shell), type
47: fsck -fy /dev/rld0a
48: resize_ffs -y /dev/rld0a
49: - This may take a few minutes, be patient!
51: fsck -fy /dev/rld0a
52: mount /dev/ld0e /boot
53: mv /boot/cmdline.txt.orig /boot/cmdline.txt
55: - When the system comes back up, the root file-system will have been expanded to
56: fill the SD card.
58: # Updating the firmware
59: - [rpi firmware files](https://github.com/raspberrypi/firmware/tree/master/boot)
60: - Copy all files except 'kernel*img' into /boot and reboot
62: # Additional links
63: - [ARM userland utilities](https://github.com/jaredmcneill/userland)
65: # What works
66: - multi-user boot with root on SD card
67: - serial or graphics console (with EDID query / parsing)
68: - X windows.
69: - USB (host); control, interrupt and bulk transfers. Has some stability issues that are being worked on. man page missing.
70: - USB Ethernet
71: - RNG: works
72: - I²C: works, could use enhancements, man page
73: - SPI: works, could use enhancements, man page
74: - VCHIQ: work in progress. man page missing. (-current)
75: - Audio: works. man page missing. (-current)
77: # What needs work
78: - USB (host); isochronous transfers. DMA support.
79: - DMA controller driver / dmover(9) backend
80: - Teach sdhc(4) about dmover; not Raspberry Pi specific
81: - hardfloat; not Raspberry Pi specific
82: - earm ABI; not Raspberry Pi specific
83: - GPIO
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