File:  [NetBSD Developer Wiki] / wikisrc / ports / evbarm / raspberry_pi.mdwn
Revision 1.23: download - view: text, annotated - select for diffs
Wed Dec 17 08:01:34 2014 UTC (6 years, 7 months ago) by skrll
Branches: MAIN
CVS tags: HEAD
Updates to better reflect the state of the RaspberryPi port.

    1: [[!meta title="NetBSD/evbarm on Raspberry Pi"]]
    2: 
    3: [[images/raspberrypi.jpg]]
    4: 
    5: This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org).
    6: 
    7: <small>([Raspberry Pi image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)</small>
    8: 
    9: # Installation
   10:  - You may use the rpi.img file created by an evbarm build - evbarm-earmv6hf is recommended.
   11:    - The Raspberry Pi port will be part of the NetBSD 7 stable release,
   12:      but you may want to use the HEAD branch for the latest development code.
   13:    - 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/).
   14:      - The HEAD/current build will be under HEAD/YYYYMMDDHHMMZ/evbarm-earmv6hf/binary/gzimg/
   15:      - The stable build will be under netbsd-7/YYYYMMDDHHMMZ/evbarm-earmv6hf/binary/gzimg/
   16:      - For example, http://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-7/201412161700Z/evbarm-earmv6hf/binary/gzimg/
   17:    - 'releasedir/evbarm/binary/gzimg/' if you run (for example) './build.sh -m evbarm -a earmv6hf -u release'
   18:    - <i>gunzip and dd</i> this img to your sd card.
   19: 
   20: 	   dd if=rpi.img of=/dev/disk1
   21: 
   22:  - Using a serial console
   23:    - 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)
   24: 
   25: 	   edit cmdline.txt and remove '"console=fb"'
   26: 
   27:  - Growing the root file-system
   28:    - During the partitioning process, do not delete or format the
   29:      first MSDOS (FAT) partition, as the Raspberry pi firmware is
   30:      hard coded to boot on the SDCAD / 1st MSDOS partition / Firmware
   31:      updates and boot loader.
   32:    - Copy /boot/cmdline.txt to /boot/cmdline.txt.orig
   33:    - Edit /boot/cmdline.txt and add the '-s' flag to the end of the first line of text to boot into single-user mode.
   34:    - For the next steps, the root filesystem mustn't be mounted rw. So reboot, and at the prompt to enter the pathname of shell,
   35:      press return for the default (/bin/sh).
   36:    - At the # prompt, type
   37: 
   38:         "disklabel -i ld0" and press return.
   39: 
   40:    - At the partition> prompt type "A" and press return.
   41: 
   42:            Adjust disklabel sector from 4194304 to 62333952 [n]?
   43:            Type "y" and press return.
   44: 
   45:    - partition> prompt type "a" and press return.
   46: 
   47:            Filesystem type prompt, press return to use the current value (4.2BSD).
   48:            Start offset prompt, press return to use the current value.
   49:            Partition size prompt, type "$" and press return to grow the
   50:            partition to use all available free space.
   51: 
   52:    - partition> prompt type "W" to save the changes to the disklabel.
   53: 
   54:            Confirm this choice by typing "y" at the Label disk prompt.
   55:            Type "Q" and press return to quit disklabel.
   56: 
   57:    - At the # prompt (shell), type
   58: 
   59:            fsck -fy /dev/rld0a
   60:            resize_ffs -y /dev/rld0a
   61: 
   62:    - This may take a few minutes, be patient!
   63: 
   64:            fsck -fy /dev/rld0a
   65:            mount_msdos /dev/ld0e /boot
   66:            mv /boot/cmdline.txt.orig /boot/cmdline.txt
   67:            reboot
   68: 
   69:     - When the system comes back up, the root file-system will have been expanded to
   70: 	   fill the SD card.
   71: 
   72: # Installation with sshramdisk image
   73:  - You may use the  rpi_inst.img.gz file created by an evbarm build.
   74:  - Connect Ethernet Cable to RPI.
   75:  - After starting DHCP client, SSH login to with user "sysinst", and password "netbsd".
   76:    - Be careful to note the ip address given during DHCP so you don't lose your connection
   77:    - Also for after the sysinst is done and the system reboots
   78:  - sysinst started!
   79: 
   80: # Updating the firmware
   81:  - [rpi firmware files](https://github.com/raspberrypi/firmware/tree/master/boot)
   82:    - Copy all files except 'kernel*.img' into /boot and reboot
   83: 
   84: # Additional links
   85:  - [ARM userland utilities](https://github.com/jaredmcneill/userland)
   86: 
   87: # What works in -current
   88:  - multi-user boot with root on SD card
   89:  - serial or graphics console (with EDID query / parsing)
   90:  - DMA controller driver and sdhc(4) support
   91:  - Audio: works. man page missing.
   92:  - I²C: works, could use enhancements, man page
   93:  - GPIO
   94:  - RNG
   95:  - SPI: could use enhancements, man page
   96:  - VCHIQ: man page missing.
   97:  - USB (host) - dwctwo(4)
   98:  - USB Ethernet - usmsc(4)
   99:  - X windows.
  100: 
  101: # What needs work
  102:  - USB (host); isochronous transfers.

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