Diff for /wikisrc/ports/evbarm/raspberry_pi.mdwn between versions 1.26 and 1.55

version 1.26, 2015/01/29 20:55:41 version 1.55, 2017/10/14 15:06:30
Line 1 Line 1
 [[!meta title="NetBSD/evbarm on Raspberry Pi"]]  [[!meta title="NetBSD/evbarm on Raspberry Pi"]]
   
   This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org). All board variants are supported.
   
   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.
   
 [[images/raspberrypi.jpg]]  [[images/raspberrypi.jpg]]
   
 [[!toc levels=2]]  [[!toc levels=2]]
   
 This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org).  
   
 <small>([Raspberry Pi image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)</small>  <small>([Raspberry Pi image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)</small>
   
 # Installation  # What works (and what doesn't yet)
  - You may use the rpi.img file created by an evbarm build - evbarm-earmv6hf is recommended.  
    - The Raspberry Pi port will be part of the NetBSD 7 stable release,  
      but you may want to use the HEAD branch for the latest development code.  
    - 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/).  
      - The HEAD/current build will be under HEAD/YYYYMMDDHHMMZ/evbarm-earmv6hf/binary/gzimg/  
      - The stable build will be under netbsd-7/YYYYMMDDHHMMZ/evbarm-earmv6hf/binary/gzimg/  
      - For example, http://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-7/201412161700Z/evbarm-earmv6hf/binary/gzimg/  
    - 'releasedir/evbarm/binary/gzimg/' if you run (for example) './build.sh -m evbarm -a earmv6hf -u release'  
    - <i>gunzip and dd</i> this img to your sd card.  
   
            dd if=rpi.img of=/dev/disk1  ## NetBSD 7 before July, 2017
   
  - Using a serial console   - RaspberryPi 1, and 2 (including SMP)
    - 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)   - multi-user boot with root on SD card
    - serial or graphics console (with EDID query / parsing)
    - DMA controller driver and sdhc(4) support
    - Audio: works. man page missing.
    - I²C: works, could use enhancements, man page
    - GPIO
    - RNG
    - SPI: could use enhancements, man page
    - GPU (VCHIQ) - 3D and video decode. man page missing.
    - USB (host) - dwctwo(4)
    - USB Ethernet - usmsc(4)
    - X windows.
   
            edit cmdline.txt and remove '"console=fb"'  ## NetBSD 7 after July, 2017 and NetBSD 8
   
  - Growing the root file-system   - Raspberry Pi 3 (excluding WiFi and bluetooth)
    - During the partitioning process, do not delete or format the  
      first MSDOS (FAT) partition, as the Raspberry pi firmware is  
      hard coded to boot on the SDCAD / 1st MSDOS partition / Firmware  
      updates and boot loader.  
    - Copy /boot/cmdline.txt to /boot/cmdline.txt.orig  
    - Edit /boot/cmdline.txt and add the '-s' flag to the end of the first line of text to boot into single-user mode.  
    - For the next steps, the root filesystem mustn't be mounted rw. So reboot, and at the prompt to enter the pathname of shell,  
      press return for the default (/bin/sh).  
    - At the # prompt, type  
   
         "disklabel -i ld0" and press return.  ## NetBSD current
   
    - At the partition> prompt type "A" and press return.   - Raspberry Pi 3 bluetooth
    - Raspberry Pi 3 new SD host controller driver
   
            Adjust disklabel sector from 4194304 to 62333952 [n]?  ## What needs work
            Type "y" and press return.  
   
    - partition> prompt type "a" and press return.   - USB (host); isochronous transfers.
    - WiFi
   
            Filesystem type prompt, press return to use the current value (4.2BSD).  # Installation
            Start offset prompt, press return to use the current value.  
            Partition size prompt, type "$" and press return to grow the  
            partition to use all available free space.  
   
    - partition> prompt type "W" to save the changes to the disklabel.   - 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.
       - The 'evbarm-earmv6hf/binary/gzimg/' directory contains an rpi.img file that can be used as a single image for both boards.
       - The 'evbarm-earmv7hf/binary/gzimg/' directory, as of August 6th 2015, contains an armv7.img file that is optimized for Raspberry Pi 2.
       - 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/)
       - 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/)
     - 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'
      - <i>gunzip and dd</i> this img to your sd card. For example,
   
            Confirm this choice by typing "y" at the Label disk prompt.             dd if=rpi.img of=/dev/disk1
            Type "Q" and press return to quit disklabel.  
   
    - At the # prompt (shell), type   - Using a serial console
      - 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)
   
              edit cmdline.txt and remove '"console=fb"'
   
            fsck -fy /dev/rld0a     - 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".
            resize_ffs -y /dev/rld0a  
   
    - This may take a few minutes, be patient!        In Kermit, the command is "set flow none".
   
            fsck -fy /dev/rld0a        In minicom, run "minicom -s" and set hardware flow control to "no"
            mount_msdos /dev/ld0e /boot  
            mv /boot/cmdline.txt.orig /boot/cmdline.txt  
            reboot  
   
     - When the system comes back up, the root file-system will have been expanded to  ## Installation with sshramdisk image
            fill the SD card.  
   
 # Installation with sshramdisk image  
  - You may use the  rpi_inst.img.gz file created by an evbarm build.   - You may use the  rpi_inst.img.gz file created by an evbarm build.
  - Connect Ethernet Cable to RPI.   - Connect Ethernet Cable to RPI.
  - After starting DHCP client, SSH login to with user "sysinst", and password "netbsd".   - After starting DHCP client, SSH login to with user "sysinst", and password "netbsd".
Line 79  This page attempts to document and coord Line 74  This page attempts to document and coord
    - Also for after the sysinst is done and the system reboots     - Also for after the sysinst is done and the system reboots
  - sysinst started!   - sysinst started!
   
 # Updating the firmware  ## Installation via ebijun's image
  - [rpi firmware files](https://github.com/raspberrypi/firmware/tree/master/boot)  
    - Copy all files except 'kernel*.img' into /boot and reboot  Jun Ebihara provides an install image for Raspberry Pi that includes
   packages.  It is based on NetBSD-current.  This image is typically
   updated every few weeks.
   
    - https://github.com/ebijun/NetBSD/blob/master/RPI/RPIimage/Image/README
   
   ## Updating the kernel
   
    - Build a new kernel, e.g. using build.sh. It will tell you where the ELF version of the kernel is, e.g.
   
            ...
            Kernels built from RPI2:
             /Users/feyrer/work/NetBSD/cvs/src-current/obj.evbarm-Darwin-XXX/sys/arch/evbarm/compile/RPI2/netbsd
            ...
   
    - Besides the "netbsd" kernel in ELF format, there is also a "netbsd.bin" kernel that is in a format that the Raspberry can boot.
    - 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)
    - reboot
   
 # Wireless Networking  # Wireless Networking
   
     Note that the built-in WiFi in the RPI3 is not yet supported.
   
  - A Realtek 802.11n USB adaptor configures as urtwn(4).   - A Realtek 802.11n USB adaptor configures as urtwn(4).
    - Configure with wpa_supplicant in /etc/rc.conf -     - Configure with wpa_supplicant in /etc/rc.conf -
   
Line 94  This page attempts to document and coord Line 109  This page attempts to document and coord
            wpa_supplicant_flags="-B -i urtwn0 -c /etc/wpa_supplicant.conf"             wpa_supplicant_flags="-B -i urtwn0 -c /etc/wpa_supplicant.conf"
    - A sample wpa_supplicant.conf can be found at /usr/share/examples/wpa_supplicant/wpa_supplicant.conf     - A sample wpa_supplicant.conf can be found at /usr/share/examples/wpa_supplicant/wpa_supplicant.conf
   
 # Additional links  # GPU
  - [ARM userland utilities](https://github.com/jaredmcneill/userland)  
   
 # What works in -current  ## Video playback
  - multi-user boot with root on SD card  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.
  - serial or graphics console (with EDID query / parsing)  
  - DMA controller driver and sdhc(4) support  
  - Audio: works. man page missing.  
  - I²C: works, could use enhancements, man page  
  - GPIO  
  - RNG  
  - SPI: could use enhancements, man page  
  - VCHIQ: man page missing.  
  - USB (host) - dwctwo(4)  
  - USB Ethernet - usmsc(4)  
  - X windows.  
   
 # What needs work  ## OpenGL ES
  - USB (host); isochronous transfers.  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.
   
   ## Quake 3
   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:
   
    - pak0.pk3 from Quake 3 CD
    - additional pak files from the [games/ioquake3-pk3](http://pkgsrc.se/games/ioquake3-pk3) package
    - read/write permissions on /dev/vchiq and /dev/wsmouse
   
   Place the pak0.pk3 file in the /usr/pkg/lib/ioquake3/baseq3 directory.
   
   ## RetroArch / Libretro
   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:
   
    - Install [emulators/retroarch](http://pkgsrc.se/emulators/retroarch)
    - 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).
    - Plug in a USB HID compatible Gamepad, such as the Logitech F710 in "DirectInput" mode (set "D/X" switch to "D").
    - Create a config file for your gamepad using *retroarch-joyconfig*.
   [[!template  id=programlisting text="""
   $ retroarch-joyconfig -o gamepad.cfg
   """]]
    - Launch the emulator from the command-line (no X required):
   [[!template  id=programlisting text="""
   $ retroarch --appendconfig gamepad.cfg -L /usr/pkg/lib/libretro/gambatte_libretro.so game.gbc
   """]]
   
   # Developer notes
   
   These notes are for people working on improvements to RPI support in NetBSD.
   
   ## Updating the firmware
   
   You probably don't want to do this. Firmware updates can break things,
   and the latest firmware that's been tested is already included in the
   NetBSD build you installed.
   
   If you're feeling adventurous (or are the port maintainer), here's what
   to test whenever you try new firmware:
   
   - Audio
   - OMXPlayer (and [[!template id=man name="vchiq"]])
   - Serial/framebuffer console
   - CPU frequency scaling
   
   That goes for all of `rpi[0123]`.
   
   Upstream firmware releases are
   [on GitHub](https://github.com/raspberrypi/firmware/releases).
   Copy all files except `kernel*.img` into `/boot` and reboot.

Removed from v.1.26  
changed lines
  Added in v.1.55


CVSweb for NetBSD wikisrc <wikimaster@NetBSD.org> software: FreeBSD-CVSweb