1: [[!meta title="NetBSD/evbarm on Raspberry Pi"]]
5: [[!toc levels=2]]
7: This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org).
9: <small>([Raspberry Pi image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)</small>
11: # Installation
12: - You may use the rpi.img file created by an evbarm build - evbarm-earmv6hf is recommended.
13: - The Raspberry Pi port will be part of the NetBSD 7 stable release,
14: but you may want to use the HEAD branch for the latest development code.
15: - The automatic nightly builds can be found in the 'evbarm-earmv6hf/binary/gzimg/' directory under on [nyftp.netbsd.org](http://nyftp.netbsd.org/pub/NetBSD-daily/).
16: - The HEAD/current build will be under HEAD/YYYYMMDDHHMMZ/evbarm-earmv6hf/binary/gzimg/
17: - The stable build will be under netbsd-7/YYYYMMDDHHMMZ/evbarm-earmv6hf/binary/gzimg/
18: - For example, http://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-7/201412161700Z/evbarm-earmv6hf/binary/gzimg/
19: - 'releasedir/evbarm/binary/gzimg/' if you run (for example) './build.sh -m evbarm -a earmv6hf -u release'
20: - <i>gunzip and dd</i> this img to your sd card.
22: dd if=rpi.img of=/dev/disk1
24: - Using a serial console
25: - By default the rpi.img is set to use the HDMI output; to change to using a serial console first mount rpi.img (it's a FAT filesystem)
27: edit cmdline.txt and remove '"console=fb"'
29: - Growing the root file-system
30: - During the partitioning process, do not delete or format the
31: first MSDOS (FAT) partition, as the Raspberry pi firmware is
32: hard coded to boot on the SDCAD / 1st MSDOS partition / Firmware
33: updates and boot loader.
34: - Copy /boot/cmdline.txt to /boot/cmdline.txt.orig
35: - Edit /boot/cmdline.txt and add the '-s' flag to the end of the first line of text to boot into single-user mode.
36: - For the next steps, the root filesystem mustn't be mounted rw. So reboot, and at the prompt to enter the pathname of shell,
37: press return for the default (/bin/sh).
38: - At the # prompt, type
40: "disklabel -i ld0" and press return.
42: - At the partition> prompt type "A" and press return.
44: Adjust disklabel sector from 4194304 to 62333952 [n]?
45: Type "y" and press return.
47: - partition> prompt type "a" and press return.
49: Filesystem type prompt, press return to use the current value (4.2BSD).
50: Start offset prompt, press return to use the current value.
51: Partition size prompt, type "$" and press return to grow the
52: partition to use all available free space.
54: - partition> prompt type "W" to save the changes to the disklabel.
56: Confirm this choice by typing "y" at the Label disk prompt.
57: Type "Q" and press return to quit disklabel.
59: - At the # prompt (shell), type
61: fsck -fy /dev/rld0a
62: resize_ffs -y /dev/rld0a
64: - This may take a few minutes, be patient!
66: fsck -fy /dev/rld0a
67: mount_msdos /dev/ld0e /boot
68: mv /boot/cmdline.txt.orig /boot/cmdline.txt
71: - When the system comes back up, the root file-system will have been expanded to
72: fill the SD card.
74: # Installation with sshramdisk image
75: - You may use the rpi_inst.img.gz file created by an evbarm build.
76: - Connect Ethernet Cable to RPI.
77: - After starting DHCP client, SSH login to with user "sysinst", and password "netbsd".
78: - Be careful to note the ip address given during DHCP so you don't lose your connection
79: - Also for after the sysinst is done and the system reboots
80: - sysinst started!
82: # Updating the firmware
83: - [rpi firmware files](https://github.com/raspberrypi/firmware/tree/master/boot)
84: - Copy all files except 'kernel*.img' into /boot and reboot
86: # Wireless Networking
87: - A Realtek 802.11n USB adaptor configures as urtwn(4).
88: - Configure with wpa_supplicant in /etc/rc.conf -
92: dhcpcd_flags="-q -b"
94: wpa_supplicant_flags="-B -i urtwn0 -c /etc/wpa_supplicant.conf"
95: - A sample wpa_supplicant.conf can be found at /usr/share/examples/wpa_supplicant/wpa_supplicant.conf
97: # GPU
99: ## Video playback
100: Accelerated video playback is supported in NetBSD 7 with the [OMXPlayer](http://pkgsrc.se/multimedia/omxplayer) application and through GStreamer with the [omx](http://pkgsrc.se/multimedia/gst-plugins1-omx) plugin.
102: ## OpenGL ES
103: Accelerated OpenGL ES is supported in NetBSD 7. The GL ES client libraries are included with the [misc/raspberrypi-userland](http://pkgsrc.se/misc/raspberrypi-userland) package.
105: ## Quake 3
106: A Raspberry Pi optimized build of *ioquake3* is available in the [games/ioquake3-raspberrypi](http://pkgsrc.se/games/ioquake3-raspberrypi) package. To use it, the following additional resources are required:
108: - pak0.pk3 from Quake 3 CD
109: - additional pak files from the [games/ioquake3-pk3](http://pkgsrc.se/games/ioquake3-pk3) package
110: - read/write permissions on /dev/vchiq and /dev/wsmouse
112: Place the pak0.pk3 file in the /usr/pkg/lib/ioquake3/baseq3 directory.
114: ## RetroArch / Libretro
115: Using [emulators/retroarch](http://pkgsrc.se/emulators/retroarch) it is possible to run many emulators at full speed the Raspberry Pi. Emulator cores for various gaming consoles are available in the [emulators/libretro-*](http://pkgsrc.se/search.php?so=libretro-) packages. To begin using retroarch:
117: - Install [emulators/retroarch](http://pkgsrc.se/emulators/retroarch)
118: - Install the libretro core for the system you would like to emulate (lets take [emulators/libretro-gambatte](http://pkgsrc.se/emulators/libretro-gambatte), a GameBoy Color emulator, as an example).
119: - Plug in a USB HID compatible Gamepad, such as the Logitech F710 in "DirectInput" mode (set "D/X" switch to "D").
120: - Create a config file for your gamepad using *retroarch-joyconfig*.
121: [[!template id=programlisting text="""
122: $ retroarch-joyconfig -o gamepad.cfg -a
124: - Launch the emulator from the command-line (no X required):
125: [[!template id=programlisting text="""
126: $ retroarch --appendconfig gamepad.cfg -L /usr/pkg/lib/libretro/gambatte_libretro.so game.gbc
129: # Additional links
130: - [ARM userland utilities](https://github.com/jaredmcneill/userland)
132: # What works (NetBSD 7.0+)
133: - multi-user boot with root on SD card
134: - serial or graphics console (with EDID query / parsing)
135: - DMA controller driver and sdhc(4) support
136: - Audio: works. man page missing.
137: - I²C: works, could use enhancements, man page
138: - GPIO
139: - RNG
140: - SPI: could use enhancements, man page
141: - GPU (VCHIQ) - 3D and video decode. man page missing.
142: - USB (host) - dwctwo(4)
143: - USB Ethernet - usmsc(4)
144: - X windows.
146: # What needs work
147: - USB (host); isochronous transfers.
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