Annotation of wikisrc/ports/evbarm/raspberry_pi.mdwn, revision 1.51

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: 
1.7       wiki       13: # Installation
1.49      gdt        14:  - 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       15:     - The 'evbarm-earmv6hf/binary/gzimg/' directory contains an rpi.img file that can be used as a single image for both boards.
                     16:     - The 'evbarm-earmv7hf/binary/gzimg/' directory, as of August 6th 2015, contains an armv7.img file that is optimized for Raspberry Pi 2.
                     17:     - 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/)
                     18:     - The HEAD/current directory build will be under HEAD/YYYYMMDDHHMMZ/ (for example, http://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-7/201508062150Z/evbarm-earmv7hf/binary/gzimg/)
                     19:   - 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'
                     20:    - <i>gunzip and dd</i> this img to your sd card. For example,
1.10      wiki       21: 
1.14      wiki       22:           dd if=rpi.img of=/dev/disk1
                     23: 
                     24:  - Using a serial console
1.19      wiki       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)
1.14      wiki       26: 
                     27:           edit cmdline.txt and remove '"console=fb"'
                     28: 
1.47      sevan      29:    - 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       30: 
                     31:       In Kermit, the command is "set flow none".
                     32: 
                     33:       In minicom, run "minicom -s" and set hardware flow control to "no"
                     34: 
1.16      wiki       35: # Installation with sshramdisk image
                     36:  - You may use the  rpi_inst.img.gz file created by an evbarm build.
                     37:  - Connect Ethernet Cable to RPI.
1.19      wiki       38:  - After starting DHCP client, SSH login to with user "sysinst", and password "netbsd".
1.17      wiki       39:    - Be careful to note the ip address given during DHCP so you don't lose your connection
                     40:    - Also for after the sysinst is done and the system reboots
                     41:  - sysinst started!
1.16      wiki       42: 
1.7       wiki       43: # Updating the firmware
1.45      schmonz    44: 
                     45: You probably don't want to do this. Firmware updates can break things,
                     46: and the latest firmware that's been tested is already included in the
                     47: NetBSD build you installed.
                     48: 
                     49: If you're feeling adventurous (or are the port maintainer), here's what
                     50: to test whenever you try new firmware:
                     51: 
                     52: - Audio
                     53: - OMXPlayer (and [[!template id=man name="vchiq"]])
                     54: - Serial/framebuffer console
                     55: - CPU frequency scaling
                     56: 
1.46      schmonz    57: That goes for all of `rpi[0123]`.
                     58: 
1.45      schmonz    59: Upstream firmware releases are
                     60: [on GitHub](https://github.com/raspberrypi/firmware/releases).
                     61: Copy all files except `kernel*.img` into `/boot` and reboot.
1.7       wiki       62: 
1.42      wiki       63: # Updating the kernel
                     64:  - Build a new kernel, e.g. using build.sh. It will tell you where the ELF version of the kernel is, e.g.
                     65: 
                     66:          ...
                     67:          Kernels built from RPI2:
                     68:           /Users/feyrer/work/NetBSD/cvs/src-current/obj.evbarm-Darwin-XXX/sys/arch/evbarm/compile/RPI2/netbsd
                     69:          ...
                     70: 
1.47      sevan      71:  - 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      72:  - 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       73:  - reboot
                     74: 
1.24      wiki       75: # Wireless Networking
                     76:  - A Realtek 802.11n USB adaptor configures as urtwn(4).
1.25      wiki       77:    - Configure with wpa_supplicant in /etc/rc.conf -
1.24      wiki       78: 
                     79:            ifconfig_urtwn0=dhcp
                     80:            dhcpcd=YES
                     81:            dhcpcd_flags="-q -b"
                     82:            wpa_supplicant=YES
                     83:            wpa_supplicant_flags="-B -i urtwn0 -c /etc/wpa_supplicant.conf"
1.25      wiki       84:    - A sample wpa_supplicant.conf can be found at /usr/share/examples/wpa_supplicant/wpa_supplicant.conf
1.24      wiki       85: 
1.27      wiki       86: # GPU
                     87: 
                     88: ## Video playback
1.29      wiki       89: 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       90: 
                     91: ## OpenGL ES
                     92: 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.
                     93: 
1.28      wiki       94: ## Quake 3
1.27      wiki       95: 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:
                     96: 
                     97:  - pak0.pk3 from Quake 3 CD
1.31      snj        98:  - additional pak files from the [games/ioquake3-pk3](http://pkgsrc.se/games/ioquake3-pk3) package
1.27      wiki       99:  - read/write permissions on /dev/vchiq and /dev/wsmouse
                    100: 
1.31      snj       101: Place the pak0.pk3 file in the /usr/pkg/lib/ioquake3/baseq3 directory.
1.27      wiki      102: 
1.32      wiki      103: ## RetroArch / Libretro
                    104: 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:
                    105: 
                    106:  - Install [emulators/retroarch](http://pkgsrc.se/emulators/retroarch)
                    107:  - 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).
                    108:  - Plug in a USB HID compatible Gamepad, such as the Logitech F710 in "DirectInput" mode (set "D/X" switch to "D").
                    109:  - Create a config file for your gamepad using *retroarch-joyconfig*.
                    110: [[!template  id=programlisting text="""
1.35      wiki      111: $ retroarch-joyconfig -o gamepad.cfg
1.32      wiki      112: """]]
                    113:  - Launch the emulator from the command-line (no X required):
                    114: [[!template  id=programlisting text="""
                    115: $ retroarch --appendconfig gamepad.cfg -L /usr/pkg/lib/libretro/gambatte_libretro.so game.gbc
                    116: """]]
                    117: 
1.50      gdt       118: # What works
                    119: 
                    120: ## NetBSD 7 before July, 2017
                    121: 
                    122:  - RaspberryPi 1, and 2 (including SMP)
1.6       wiki      123:  - multi-user boot with root on SD card
                    124:  - serial or graphics console (with EDID query / parsing)
1.23      skrll     125:  - DMA controller driver and sdhc(4) support
                    126:  - Audio: works. man page missing.
1.21      skrll     127:  - I²C: works, could use enhancements, man page
                    128:  - GPIO
                    129:  - RNG
                    130:  - SPI: could use enhancements, man page
1.29      wiki      131:  - GPU (VCHIQ) - 3D and video decode. man page missing.
1.19      wiki      132:  - USB (host) - dwctwo(4)
                    133:  - USB Ethernet - usmsc(4)
1.21      skrll     134:  - X windows.
1.50      gdt       135: 
                    136: ## NetBSD 7 after July, 2017 and NetBSD 8
                    137: 
                    138:  - Raspberry Pi 3 (including wifi and SMP)
                    139: 
                    140: ## NetBSD current
                    141: 
                    142:  - Raspberry Pi 3 bluetooth
                    143:  - Raspberry Pi 3 new SD host controller driver
1.1       jakllsch  144: 
                    145: # What needs work
1.19      wiki      146:  - USB (host); isochronous transfers.

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