Annotation of wikisrc/ports/evbarm/raspberry_pi.mdwn, revision 1.57

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
                     44: 
1.57    ! gdt        45: # CPU types
        !            46: 
        !            47: Note that one can also use code for earlier models on later models.
        !            48: 
        !            49:   - Raspberry Pi 1 uses "earmv6hf".
        !            50:   - Raspberry Pi 2 uses "earmv7hf".
        !            51:   - Raspberry Pi 3 uses "earmv7hf".  (NetBSD does not yet have 64-bit support.)
        !            52: 
1.7       wiki       53: # Installation
1.53      gdt        54: 
1.49      gdt        55:  - The automatic nightly builds  on [nyftp.netbsd.org](http://nyftp.netbsd.org/pub/NetBSD-daily/) provide image files that can be used for installation. The Raspberry Pi and Pi 2 ports are part of the NetBSD 7 release.
1.44      wiki       56:     - The 'evbarm-earmv6hf/binary/gzimg/' directory contains an rpi.img file that can be used as a single image for both boards.
                     57:     - The 'evbarm-earmv7hf/binary/gzimg/' directory, as of August 6th 2015, contains an armv7.img file that is optimized for Raspberry Pi 2.
                     58:     - The stable build directory will be under netbsd-7/YYYYMMDDHHMMZ/ (for example, http://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-7/201412161700Z/evbarm-earmv6hf/binary/gzimg/)
1.55      gdt        59:     - The HEAD/current directory build will be under HEAD/YYYYMMDDHHMMZ/ (for example, http://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-7/201508062150Z/evbarm-earminstv7hf/binary/gzimg/)
1.44      wiki       60:   - You can build your own version of these images using (for example) './build.sh -m evbarm -a earmv6hf -u release', or './build.sh -m evbarm -a earmv7hf -u release'
                     61:    - <i>gunzip and dd</i> this img to your sd card. For example,
1.10      wiki       62: 
1.14      wiki       63:           dd if=rpi.img of=/dev/disk1
                     64: 
                     65:  - Using a serial console
1.19      wiki       66:    - 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)
1.14      wiki       67: 
                     68:           edit cmdline.txt and remove '"console=fb"'
                     69: 
1.47      sevan      70:    - 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       71: 
                     72:       In Kermit, the command is "set flow none".
                     73: 
                     74:       In minicom, run "minicom -s" and set hardware flow control to "no"
                     75: 
1.53      gdt        76: ## Installation with sshramdisk image
                     77: 
1.16      wiki       78:  - You may use the  rpi_inst.img.gz file created by an evbarm build.
                     79:  - Connect Ethernet Cable to RPI.
1.19      wiki       80:  - After starting DHCP client, SSH login to with user "sysinst", and password "netbsd".
1.17      wiki       81:    - Be careful to note the ip address given during DHCP so you don't lose your connection
                     82:    - Also for after the sysinst is done and the system reboots
                     83:  - sysinst started!
1.16      wiki       84: 
1.55      gdt        85: ## Installation via ebijun's image
                     86: 
                     87: Jun Ebihara provides an install image for Raspberry Pi that includes
                     88: packages.  It is based on NetBSD-current.  This image is typically
                     89: updated every few weeks.
                     90: 
1.56      gdt        91:  - [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        92: 
1.53      gdt        93: ## Updating the kernel
1.46      schmonz    94: 
1.42      wiki       95:  - Build a new kernel, e.g. using build.sh. It will tell you where the ELF version of the kernel is, e.g.
                     96: 
                     97:          ...
                     98:          Kernels built from RPI2:
                     99:           /Users/feyrer/work/NetBSD/cvs/src-current/obj.evbarm-Darwin-XXX/sys/arch/evbarm/compile/RPI2/netbsd
                    100:          ...
                    101: 
1.47      sevan     102:  - 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     103:  - 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      104:  - reboot
                    105: 
1.24      wiki      106: # Wireless Networking
1.53      gdt       107: 
                    108:   Note that the built-in WiFi in the RPI3 is not yet supported.
                    109: 
1.24      wiki      110:  - A Realtek 802.11n USB adaptor configures as urtwn(4).
1.25      wiki      111:    - Configure with wpa_supplicant in /etc/rc.conf -
1.24      wiki      112: 
                    113:            ifconfig_urtwn0=dhcp
                    114:            dhcpcd=YES
                    115:            dhcpcd_flags="-q -b"
                    116:            wpa_supplicant=YES
                    117:            wpa_supplicant_flags="-B -i urtwn0 -c /etc/wpa_supplicant.conf"
1.25      wiki      118:    - A sample wpa_supplicant.conf can be found at /usr/share/examples/wpa_supplicant/wpa_supplicant.conf
1.24      wiki      119: 
1.27      wiki      120: # GPU
                    121: 
                    122: ## Video playback
1.29      wiki      123: 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      124: 
                    125: ## OpenGL ES
                    126: 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.
                    127: 
1.28      wiki      128: ## Quake 3
1.27      wiki      129: 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:
                    130: 
                    131:  - pak0.pk3 from Quake 3 CD
1.31      snj       132:  - additional pak files from the [games/ioquake3-pk3](http://pkgsrc.se/games/ioquake3-pk3) package
1.27      wiki      133:  - read/write permissions on /dev/vchiq and /dev/wsmouse
                    134: 
1.31      snj       135: Place the pak0.pk3 file in the /usr/pkg/lib/ioquake3/baseq3 directory.
1.27      wiki      136: 
1.32      wiki      137: ## RetroArch / Libretro
                    138: 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:
                    139: 
                    140:  - Install [emulators/retroarch](http://pkgsrc.se/emulators/retroarch)
                    141:  - 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).
                    142:  - Plug in a USB HID compatible Gamepad, such as the Logitech F710 in "DirectInput" mode (set "D/X" switch to "D").
                    143:  - Create a config file for your gamepad using *retroarch-joyconfig*.
                    144: [[!template  id=programlisting text="""
1.35      wiki      145: $ retroarch-joyconfig -o gamepad.cfg
1.32      wiki      146: """]]
                    147:  - Launch the emulator from the command-line (no X required):
                    148: [[!template  id=programlisting text="""
                    149: $ retroarch --appendconfig gamepad.cfg -L /usr/pkg/lib/libretro/gambatte_libretro.so game.gbc
                    150: """]]
                    151: 
1.53      gdt       152: # Developer notes
1.50      gdt       153: 
1.53      gdt       154: These notes are for people working on improvements to RPI support in NetBSD.
1.50      gdt       155: 
1.53      gdt       156: ## Updating the firmware
1.50      gdt       157: 
1.53      gdt       158: You probably don't want to do this. Firmware updates can break things,
                    159: and the latest firmware that's been tested is already included in the
                    160: NetBSD build you installed.
1.50      gdt       161: 
1.53      gdt       162: If you're feeling adventurous (or are the port maintainer), here's what
                    163: to test whenever you try new firmware:
1.50      gdt       164: 
1.53      gdt       165: - Audio
                    166: - OMXPlayer (and [[!template id=man name="vchiq"]])
                    167: - Serial/framebuffer console
                    168: - CPU frequency scaling
1.50      gdt       169: 
1.53      gdt       170: That goes for all of `rpi[0123]`.
1.1       jakllsch  171: 
1.53      gdt       172: Upstream firmware releases are
                    173: [on GitHub](https://github.com/raspberrypi/firmware/releases).
                    174: Copy all files except `kernel*.img` into `/boot` and reboot.

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