Annotation of wikisrc/ports/evbarm/raspberry_pi.mdwn, revision 1.45

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: 
1.44      wiki        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.
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
1.44      wiki       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 will be part of the NetBSD 7 release.
                     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: 
1.41      wiki       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". 
                     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: 
1.44      wiki       35:  - Growing the root file-system (**not required with NetBSD -current after 2015-04-07, or by NetBSD 7 after 2015-08-06**)
1.17      wiki       36:    - During the partitioning process, do not delete or format the
                     37:      first MSDOS (FAT) partition, as the Raspberry pi firmware is
                     38:      hard coded to boot on the SDCAD / 1st MSDOS partition / Firmware
                     39:      updates and boot loader.
1.10      wiki       40:    - Copy /boot/cmdline.txt to /boot/cmdline.txt.orig
1.15      wiki       41:    - Edit /boot/cmdline.txt and add the '-s' flag to the end of the first line of text to boot into single-user mode.
1.20      wiki       42:    - For the next steps, the root filesystem mustn't be mounted rw. So reboot, and at the prompt to enter the pathname of shell,
                     43:      press return for the default (/bin/sh).
1.10      wiki       44:    - At the # prompt, type
                     45: 
                     46:         "disklabel -i ld0" and press return.
1.19      wiki       47: 
1.15      wiki       48:    - At the partition> prompt type "A" and press return.
1.10      wiki       49: 
                     50:            Adjust disklabel sector from 4194304 to 62333952 [n]?
                     51:            Type "y" and press return.
1.19      wiki       52: 
1.15      wiki       53:    - partition> prompt type "a" and press return.
1.12      wiki       54: 
1.11      wiki       55:            Filesystem type prompt, press return to use the current value (4.2BSD).
                     56:            Start offset prompt, press return to use the current value.
                     57:            Partition size prompt, type "$" and press return to grow the
                     58:            partition to use all available free space.
1.19      wiki       59: 
1.15      wiki       60:    - partition> prompt type "W" to save the changes to the disklabel.
1.11      wiki       61: 
                     62:            Confirm this choice by typing "y" at the Label disk prompt.
1.12      wiki       63:            Type "Q" and press return to quit disklabel.
1.19      wiki       64: 
1.15      wiki       65:    - At the # prompt (shell), type
1.11      wiki       66: 
                     67:            fsck -fy /dev/rld0a
                     68:            resize_ffs -y /dev/rld0a
1.19      wiki       69: 
1.11      wiki       70:    - This may take a few minutes, be patient!
                     71: 
                     72:            fsck -fy /dev/rld0a
1.18      wiki       73:            mount_msdos /dev/ld0e /boot
1.11      wiki       74:            mv /boot/cmdline.txt.orig /boot/cmdline.txt
                     75:            reboot
1.19      wiki       76: 
1.11      wiki       77:     - When the system comes back up, the root file-system will have been expanded to
1.10      wiki       78:           fill the SD card.
1.7       wiki       79: 
1.16      wiki       80: # Installation with sshramdisk image
                     81:  - You may use the  rpi_inst.img.gz file created by an evbarm build.
                     82:  - Connect Ethernet Cable to RPI.
1.19      wiki       83:  - After starting DHCP client, SSH login to with user "sysinst", and password "netbsd".
1.17      wiki       84:    - Be careful to note the ip address given during DHCP so you don't lose your connection
                     85:    - Also for after the sysinst is done and the system reboots
                     86:  - sysinst started!
1.16      wiki       87: 
1.7       wiki       88: # Updating the firmware
1.45    ! schmonz    89: 
        !            90: You probably don't want to do this. Firmware updates can break things,
        !            91: and the latest firmware that's been tested is already included in the
        !            92: NetBSD build you installed.
        !            93: 
        !            94: If you're feeling adventurous (or are the port maintainer), here's what
        !            95: to test whenever you try new firmware:
        !            96: 
        !            97: - Audio
        !            98: - OMXPlayer (and [[!template id=man name="vchiq"]])
        !            99: - Serial/framebuffer console
        !           100: - CPU frequency scaling
        !           101: 
        !           102: Upstream firmware releases are
        !           103: [on GitHub](https://github.com/raspberrypi/firmware/releases).
        !           104: Copy all files except `kernel*.img` into `/boot` and reboot.
1.7       wiki      105: 
1.42      wiki      106: # Updating the kernel
                    107:  - Build a new kernel, e.g. using build.sh. It will tell you where the ELF version of the kernel is, e.g.
                    108: 
                    109:          ...
                    110:          Kernels built from RPI2:
                    111:           /Users/feyrer/work/NetBSD/cvs/src-current/obj.evbarm-Darwin-XXX/sys/arch/evbarm/compile/RPI2/netbsd
                    112:          ...
                    113: 
                    114:  - Besides the "netbsd" kernel in ELF format, there is also a "netbsd.bin" kernel that is in a format that the Raspberry can boot. 
                    115:  - Depending on your hardware version, copy this either to /boot/kernel.img (old/V1 hardware) or to /boot/kernel7.img (new/V2 hardware)
                    116:  - reboot
                    117: 
1.24      wiki      118: # Wireless Networking
                    119:  - A Realtek 802.11n USB adaptor configures as urtwn(4).
1.25      wiki      120:    - Configure with wpa_supplicant in /etc/rc.conf -
1.24      wiki      121: 
                    122:            ifconfig_urtwn0=dhcp
                    123:            dhcpcd=YES
                    124:            dhcpcd_flags="-q -b"
                    125:            wpa_supplicant=YES
                    126:            wpa_supplicant_flags="-B -i urtwn0 -c /etc/wpa_supplicant.conf"
1.25      wiki      127:    - A sample wpa_supplicant.conf can be found at /usr/share/examples/wpa_supplicant/wpa_supplicant.conf
1.24      wiki      128: 
1.27      wiki      129: # GPU
                    130: 
                    131: ## Video playback
1.29      wiki      132: 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      133: 
                    134: ## OpenGL ES
                    135: 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.
                    136: 
1.28      wiki      137: ## Quake 3
1.27      wiki      138: 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:
                    139: 
                    140:  - pak0.pk3 from Quake 3 CD
1.31      snj       141:  - additional pak files from the [games/ioquake3-pk3](http://pkgsrc.se/games/ioquake3-pk3) package
1.27      wiki      142:  - read/write permissions on /dev/vchiq and /dev/wsmouse
                    143: 
1.31      snj       144: Place the pak0.pk3 file in the /usr/pkg/lib/ioquake3/baseq3 directory.
1.27      wiki      145: 
1.32      wiki      146: ## RetroArch / Libretro
                    147: 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:
                    148: 
                    149:  - Install [emulators/retroarch](http://pkgsrc.se/emulators/retroarch)
                    150:  - 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).
                    151:  - Plug in a USB HID compatible Gamepad, such as the Logitech F710 in "DirectInput" mode (set "D/X" switch to "D").
                    152:  - Create a config file for your gamepad using *retroarch-joyconfig*.
                    153: [[!template  id=programlisting text="""
1.35      wiki      154: $ retroarch-joyconfig -o gamepad.cfg
1.32      wiki      155: """]]
                    156:  - Launch the emulator from the command-line (no X required):
                    157: [[!template  id=programlisting text="""
                    158: $ retroarch --appendconfig gamepad.cfg -L /usr/pkg/lib/libretro/gambatte_libretro.so game.gbc
                    159: """]]
                    160: 
1.30      wiki      161: # What works (NetBSD 7.0+)
1.6       wiki      162:  - multi-user boot with root on SD card
                    163:  - serial or graphics console (with EDID query / parsing)
1.23      skrll     164:  - DMA controller driver and sdhc(4) support
                    165:  - Audio: works. man page missing.
1.21      skrll     166:  - I²C: works, could use enhancements, man page
                    167:  - GPIO
                    168:  - RNG
                    169:  - SPI: could use enhancements, man page
1.29      wiki      170:  - GPU (VCHIQ) - 3D and video decode. man page missing.
1.19      wiki      171:  - USB (host) - dwctwo(4)
                    172:  - USB Ethernet - usmsc(4)
1.21      skrll     173:  - X windows.
1.43      wiki      174:  - RaspberryPi 2 SMP
1.1       jakllsch  175: 
                    176: # What needs work
1.19      wiki      177:  - USB (host); isochronous transfers.

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