Diff for /wikisrc/ports/evbarm/raspberry_pi.mdwn between versions 1.10 and 1.15

version 1.10, 2013/03/23 13:37:48 version 1.15, 2013/04/20 16:09:24
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 This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org).  This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org).
   
 (Raspberry Pi [image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)  <small>([Raspberry Pi image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)</small>
   
 # Installation  # Installation
  - You may use the rpi.img file created by an arm build.   - You may use the rpi.img file created by an arm build.
    - An example can be found in the '/evbarm/binary/gzimg/' directory under releng.netbsd.org     - An example can be found in the '/evbarm/binary/gzimg/' directory under releng.netbsd.org
      - 'obj/releasedir/evbarm/binary/gzimg/' if you run (for example) './build.sh -m evbarm -u release'
      - <i>gunzip and dd</i> this img to your sd card.       - <i>gunzip and dd</i> this img to your sd card.
   
              dd if=rpi.img of=/dev/disk1
   
    - Using a serial console
      - By default the rpi.img is set to use the HDMI output; to change mount rpi.img (it's a FAT filesystem)
   
              edit cmdline.txt and remove '"console=fb"'
      - proceed with the 'dd'
   
  - Growing the root file-system   - Growing the root file-system
    - Copy /boot/cmdline.txt to /boot/cmdline.txt.orig     - 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.     - Edit /boot/cmdline.txt and add the '-s' flag to the end of the first line of text to boot into single-user mode.
    - Reboot, and at the prompt to enter the passname of shell, press     - Reboot, and at the prompt to enter the passname of shell, press
            return for the default (/bin/sh).             return for the default (/bin/sh).
    - At the # prompt, type     - At the # prompt, type
   
         "disklabel -i ld0" and press return.          "disklabel -i ld0" and press return.
    - At the partition> prompt, type "A" and press return. You will see     - At the partition> prompt type "A" and press return.
      a message like:  
   
            Adjust disklabel sector from 4194304 to 62333952 [n]?             Adjust disklabel sector from 4194304 to 62333952 [n]?
            Type "y" and press return.             Type "y" and press return.
    - At the partition> prompt, type "a" and press return.     - partition> prompt type "a" and press return.
    - At the Filesystem type prompt, press return to use the current value (4.2BSD).  
    - At the Start offset prompt, press return to use the current value.             Filesystem type prompt, press return to use the current value (4.2BSD).
    - At the Partition size prompt, type "$" and press return to grow the             Start offset prompt, press return to use the current value.
            partition to use all available free space.             Partition size prompt, type "$" and press return to grow the
    - At the partition> prompt, type "W" to save the changes to the             partition to use all available free space.
            disklabel. Confirm this choice by typing "y" at the Label disk     - partition> prompt type "W" to save the changes to the disklabel.
            prompt.  
    - Type "Q" and press return to quit disklabel.             Confirm this choice by typing "y" at the Label disk prompt.
    - At the # prompt, type "fsck -fy /dev/rld0a" and press return.             Type "Q" and press return to quit disklabel.
    - At the # prompt, type "resize_ffs -y /dev/rld0a" and press return.     - At the # prompt (shell), type
            This may take a few minutes, be patient!  
    - At the # prompt, type "fsck -fy /dev/rld0a" and press return.             fsck -fy /dev/rld0a
    - At the # prompt, type "mount /dev/ld0e /boot" and press return.             resize_ffs -y /dev/rld0a
    - At the # prompt, type "mv /boot/cmdline.txt.orig /boot/cmdline.txt"     - This may take a few minutes, be patient!
            and press return.  
    - At the # prompt, type "reboot" and press return. When the system             fsck -fy /dev/rld0a
            comes back up, the root file-system will have been expanded to             mount /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
            fill the SD card.             fill the SD card.
   
 # Updating the firmware  # Updating the firmware
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 # Additional links  # Additional links
  - [ARM userland utilities](https://github.com/jaredmcneill/userland)   - [ARM userland utilities](https://github.com/jaredmcneill/userland)
  - [Additional kernel drivers for VCHIQ](https://github.com/jaredmcneill/vchiq-netbsd)  
   
 # What works  # What works
  - multi-user boot with root on SD card   - multi-user boot with root on SD card
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  - RNG: works   - RNG: works
  - I²C: works, could use enhancements, man page   - I²C: works, could use enhancements, man page
  - SPI: works, could use enhancements, man page   - SPI: works, could use enhancements, man page
    - VCHIQ: work in progress. man page missing. (-current)
    - Audio: works. man page missing. (-current)
   
 # What needs work  # What needs work
  - VCHIQ; work in progress - will provide audio.  
  - USB (host); isochronous transfers. DMA support.   - USB (host); isochronous transfers. DMA support.
  - DMA controller driver / dmover(9) backend   - DMA controller driver / dmover(9) backend
  - Teach sdhc(4) about dmover; not Raspberry Pi specific   - Teach sdhc(4) about dmover; not Raspberry Pi specific

Removed from v.1.10  
changed lines
  Added in v.1.15


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