Annotation of wikisrc/ports/evbarm/raspberry_pi.mdwn, revision 1.56

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

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