Annotation of wikisrc/ports/evbarm/raspberry_pi.mdwn, revision 1.64
1.1 jakllsch 1: [[!meta title="NetBSD/evbarm on Raspberry Pi"]]
2:
1.39 wiki 3: This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org). All board variants are supported.
4:
1.50 gdt 5: Initial, limited, Raspberry Pi support was introduced in NetBSD 6.0. NetBSD 7.0 adds complete support for the board, along with introducing support for the quad-core Raspberry Pi 2 board. Raspberry Pi 3 support was added for NetBSD 8, and backported to NetBSD 7 in July of 2017.
1.39 wiki 6:
1.3 wiki 7: [[images/raspberrypi.jpg]]
8:
1.26 wiki 9: [[!toc levels=2]]
10:
1.14 wiki 11: <small>([Raspberry Pi image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)</small>
1.3 wiki 12:
1.54 gdt 13: # What works (and what doesn't yet)
1.53 gdt 14:
15: ## NetBSD 7 before July, 2017
16:
17: - RaspberryPi 1, and 2 (including SMP)
18: - multi-user boot with root on SD card
19: - serial or graphics console (with EDID query / parsing)
20: - DMA controller driver and sdhc(4) support
21: - Audio: works. man page missing.
22: - I²C: works, could use enhancements, man page
23: - GPIO
24: - RNG
25: - SPI: could use enhancements, man page
26: - GPU (VCHIQ) - 3D and video decode. man page missing.
27: - USB (host) - dwctwo(4)
28: - USB Ethernet - usmsc(4)
29: - X windows.
30:
31: ## NetBSD 7 after July, 2017 and NetBSD 8
32:
33: - Raspberry Pi 3 (excluding WiFi and bluetooth)
34:
35: ## NetBSD current
36:
37: - Raspberry Pi 3 bluetooth
38: - Raspberry Pi 3 new SD host controller driver
39:
1.54 gdt 40: ## What needs work
1.53 gdt 41:
42: - USB (host); isochronous transfers.
43: - WiFi
1.64 ! gdt 44: - Raspberry Pi 3 in 64-bit mode. (Note that this will be provided by the evbarm64 port, rather than evbarm.)
1.53 gdt 45:
1.57 gdt 46: # CPU types
47:
48: Note that one can also use code for earlier models on later models.
49:
1.59 gdt 50: - Raspberry Pi 1 uses "earmv6hf".
51: - Raspberry Pi 2 uses "earmv7hf".
1.64 ! gdt 52: - Raspberry Pi 3 uses "earmv7hf".
1.57 gdt 53:
1.7 wiki 54: # Installation
1.53 gdt 55:
1.62 gdt 56: ## SD card structure
57:
58: The Raspberry Pi looks for firmware and a kernel on the first FAT32
59: partition of the uSD card. The NetBSD kernel will then use the FFS
60: partition as the root filesystem.
61:
1.63 gdt 62: A 2 GB card is the smallest workable size. The NetBSD filesystem will
63: be expanded to fit on larger cards.
64:
1.62 gdt 65: ## Choosing a version
66:
1.58 gdt 67: First, decide if you want to install a formal release (7.1), a stable
68: branch build (netbsd-7, netbsd-8), or current. Note that 7.1 predates
69: Raspberry Pi 3 support. For people who don't know how to choose among
70: those, netbsd-8 is probably best.
71:
72: ## Getting bits to install
73:
74: You can either build a release yourself with build.sh, or get one from the NetBSD FTP servers.
75:
76: Both will provide rpi.img.gz and rpi_inst.img.gz. Each is an image to
1.63 gdt 77: be written to a uSD card, and has a FAT32 partition for booting. In
78: rpi.img.gz, there is also an FFS partition for NetBSD.
1.58 gdt 79:
80: ### Building yourself
81:
82: Getting sources and building a release with build.sh is not special for evbarm.
83: Pick a CPU type alias and pass it to build.sh with -m. Examples:
1.59 gdt 84: - ./build.sh -m earmv6hf -u release
85: - ./build.sh -m evbarm -a earmv6hf -u release
86: - ./build.sh -m evbarm -a earmv7hf -u release
1.58 gdt 87:
88: ### NetBSD FTP servers
89:
90: NetBSD provides nightly builds on [nyftp.netbsd.org](http://nyftp.netbsd.org/pub/NetBSD-daily/). These are equivalent to building yourself.
91:
1.59 gdt 92: - The 'evbarm-earmv6hf/binary/gzimg/' directory contains an rpi.img file that can be used as a single image for both boards.
93: - The 'evbarm-earmv7hf/binary/gzimg/' directory contains an armv7.img file that is optimized for Raspberry Pi 2.
94: - The stable build directory will be under netbsd-7/YYYYMMDDHHMMZ/ (for example, http://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-7/201710201440Z/evbarm-earmv6hf/binary/gzimg)
95: - The not-yet-released stable build directory will be under netbsd-8/YYYYMMDDHHMMZ/ (for example, http://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-8/201710211010Z/evbarm-earmv6hf/binary/gzimg/)
96: - The HEAD/current directory build will be under HEAD/YYYYMMDDHHMMZ/ (for example, http://nyftp.netbsd.org/pub/NetBSD-daily/HEAD/201710202210Z/evbarm-earmv7hf/binary/gzimg/)
1.58 gdt 97:
98: ## Installing to uSD
1.10 wiki 99:
1.61 gdt 100: Once you have rpi.img.gz, put it on a uSD card using gunzip and dd, for example:
1.14 wiki 101:
1.60 gdt 102: - gunzip rpi.img.gz
103: - dd if=rpi.i7mg of=/dev/disk1
1.14 wiki 104:
1.58 gdt 105: ### Serial Console
106:
107: By default the rpi.img is set to use the HDMI output. If you wish to use a serial console, first mount the FAT32 partition and then
108: edit cmdline.txt and remove '"console=fb"'.
1.14 wiki 109:
1.60 gdt 110: - Most (all?) USB-to-TTL serial adapters only connect Tx, Rx and ground, and do not connect any flow control lines. An effect of missing flow control is that you see console output, but cannot type anything. If so, adjust your serial console application's flow control settings to "none".
1.41 wiki 111:
1.60 gdt 112: In Kermit, the command is "set flow none".
1.41 wiki 113:
1.60 gdt 114: In minicom, run "minicom -s" and set hardware flow control to "no"
1.41 wiki 115:
1.58 gdt 116: ### Installation with sshramdisk image
117:
118: build.sh (and hence the FTP site) also creates an image 'rpi_inst.img.gz' specifically for installation without HDMI or a serial console. To use this method, write that image to a uSD card as above, and then:
1.53 gdt 119:
1.61 gdt 120: - Ensure that you have a lan with a DHCP server.
121: - Connect an Ethernet cable from the RPI to the LAN.
1.19 wiki 122: - After starting DHCP client, SSH login to with user "sysinst", and password "netbsd".
1.17 wiki 123: - Be careful to note the ip address given during DHCP so you don't lose your connection
124: - Also for after the sysinst is done and the system reboots
125: - sysinst started!
1.16 wiki 126:
1.55 gdt 127: ## Installation via ebijun's image
128:
1.58 gdt 129: As an alternative to the standard installation images, Jun Ebihara
130: provides an install image for Raspberry Pi that includes packages. It
131: is based on NetBSD-current and is built for earmv6hf, and thus will
132: work on Raspberry Pi 1, 2 and 3. This image is typically updated
133: every few weeks.
1.55 gdt 134:
1.56 gdt 135: - [https://github.com/ebijun/NetBSD/blob/master/RPI/RPIimage/Image/README](https://github.com/ebijun/NetBSD/blob/master/RPI/RPIimage/Image/README)
1.55 gdt 136:
1.53 gdt 137: ## Updating the kernel
1.46 schmonz 138:
1.42 wiki 139: - Build a new kernel, e.g. using build.sh. It will tell you where the ELF version of the kernel is, e.g.
140:
141: ...
142: Kernels built from RPI2:
143: /Users/feyrer/work/NetBSD/cvs/src-current/obj.evbarm-Darwin-XXX/sys/arch/evbarm/compile/RPI2/netbsd
144: ...
145:
1.47 sevan 146: - Besides the "netbsd" kernel in ELF format, there is also a "netbsd.bin" kernel that is in a format that the Raspberry can boot.
1.48 sevan 147: - Depending on your hardware version, copy this either to /boot/kernel.img (First generation Pi, Pi Zero hardware) or to /boot/kernel7.img (Pi 2, Pi 3 hardware)
1.42 wiki 148: - reboot
149:
1.24 wiki 150: # Wireless Networking
1.53 gdt 151:
152: Note that the built-in WiFi in the RPI3 is not yet supported.
153:
1.24 wiki 154: - A Realtek 802.11n USB adaptor configures as urtwn(4).
1.25 wiki 155: - Configure with wpa_supplicant in /etc/rc.conf -
1.24 wiki 156:
157: ifconfig_urtwn0=dhcp
158: dhcpcd=YES
159: dhcpcd_flags="-q -b"
160: wpa_supplicant=YES
161: wpa_supplicant_flags="-B -i urtwn0 -c /etc/wpa_supplicant.conf"
1.25 wiki 162: - A sample wpa_supplicant.conf can be found at /usr/share/examples/wpa_supplicant/wpa_supplicant.conf
1.24 wiki 163:
1.27 wiki 164: # GPU
165:
166: ## Video playback
1.29 wiki 167: 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.
1.27 wiki 168:
169: ## OpenGL ES
170: 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.
171:
1.28 wiki 172: ## Quake 3
1.27 wiki 173: 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:
174:
175: - pak0.pk3 from Quake 3 CD
1.31 snj 176: - additional pak files from the [games/ioquake3-pk3](http://pkgsrc.se/games/ioquake3-pk3) package
1.27 wiki 177: - read/write permissions on /dev/vchiq and /dev/wsmouse
178:
1.31 snj 179: Place the pak0.pk3 file in the /usr/pkg/lib/ioquake3/baseq3 directory.
1.27 wiki 180:
1.32 wiki 181: ## RetroArch / Libretro
182: 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:
183:
184: - Install [emulators/retroarch](http://pkgsrc.se/emulators/retroarch)
185: - 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).
186: - Plug in a USB HID compatible Gamepad, such as the Logitech F710 in "DirectInput" mode (set "D/X" switch to "D").
187: - Create a config file for your gamepad using *retroarch-joyconfig*.
188: [[!template id=programlisting text="""
1.35 wiki 189: $ retroarch-joyconfig -o gamepad.cfg
1.32 wiki 190: """]]
191: - Launch the emulator from the command-line (no X required):
192: [[!template id=programlisting text="""
193: $ retroarch --appendconfig gamepad.cfg -L /usr/pkg/lib/libretro/gambatte_libretro.so game.gbc
194: """]]
195:
1.53 gdt 196: # Developer notes
1.50 gdt 197:
1.53 gdt 198: These notes are for people working on improvements to RPI support in NetBSD.
1.50 gdt 199:
1.53 gdt 200: ## Updating the firmware
1.50 gdt 201:
1.53 gdt 202: You probably don't want to do this. Firmware updates can break things,
203: and the latest firmware that's been tested is already included in the
204: NetBSD build you installed.
1.50 gdt 205:
1.53 gdt 206: If you're feeling adventurous (or are the port maintainer), here's what
207: to test whenever you try new firmware:
1.50 gdt 208:
1.53 gdt 209: - Audio
210: - OMXPlayer (and [[!template id=man name="vchiq"]])
211: - Serial/framebuffer console
212: - CPU frequency scaling
1.50 gdt 213:
1.53 gdt 214: That goes for all of `rpi[0123]`.
1.1 jakllsch 215:
1.53 gdt 216: Upstream firmware releases are
217: [on GitHub](https://github.com/raspberrypi/firmware/releases).
218: Copy all files except `kernel*.img` into `/boot` and reboot.
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