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Annotation of wikisrc/ports/evbarm/raspberry_pi.mdwn, revision 1.10

1.1       jakllsch    1: [[!meta title="NetBSD/evbarm on Raspberry Pi"]]
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1.3       wiki        3: [[images/raspberrypi.jpg]]
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1.1       jakllsch    5: This page attempts to document and coordinate efforts towards NetBSD/evbarm on [Raspberry Pi](http://www.raspberrypi.org).
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1.3       wiki        7: (Raspberry Pi [image](http://www.flickr.com/photos/42325803@N07/8118758647/) by Christopher Lee used under CC-By-2.0 license)
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1.7       wiki        9: # Installation
                     10:  - You may use the rpi.img file created by an arm build.
                     11:    - An example can be found in the '/evbarm/binary/gzimg/' directory under releng.netbsd.org
1.10    ! wiki       12:      - <i>gunzip and dd</i> this img to your sd card.
        !            13: 
        !            14:  - Growing the root file-system
        !            15:    - Copy /boot/cmdline.txt to /boot/cmdline.txt.orig
        !            16:    - Edit /boot/cmdline.txt and add the '-s' flag to the end of the first line of text.
        !            17:    - Reboot, and at the prompt to enter the passname of shell, press
        !            18:           return for the default (/bin/sh).
        !            19:    - At the # prompt, type
        !            20: 
        !            21:         "disklabel -i ld0" and press return.
        !            22:    - At the partition> prompt, type "A" and press return. You will see
        !            23:      a message like:
        !            24: 
        !            25:            Adjust disklabel sector from 4194304 to 62333952 [n]?
        !            26:            Type "y" and press return.
        !            27:    - At the partition> prompt, type "a" and press return.
        !            28:    - At the Filesystem type prompt, press return to use the current value (4.2BSD).
        !            29:    - At the Start offset prompt, press return to use the current value.
        !            30:    - At the Partition size prompt, type "$" and press return to grow the
        !            31:           partition to use all available free space.
        !            32:    - At the partition> prompt, type "W" to save the changes to the
        !            33:           disklabel. Confirm this choice by typing "y" at the Label disk
        !            34:           prompt.
        !            35:    - Type "Q" and press return to quit disklabel.
        !            36:    - At the # prompt, type "fsck -fy /dev/rld0a" and press return.
        !            37:    - At the # prompt, type "resize_ffs -y /dev/rld0a" and press return.
        !            38:           This may take a few minutes, be patient!
        !            39:    - At the # prompt, type "fsck -fy /dev/rld0a" and press return.
        !            40:    - At the # prompt, type "mount /dev/ld0e /boot" and press return.
        !            41:    - At the # prompt, type "mv /boot/cmdline.txt.orig /boot/cmdline.txt"
        !            42:           and press return.
        !            43:    - At the # prompt, type "reboot" and press return. When the system
        !            44:           comes back up, the root file-system will have been expanded to
        !            45:           fill the SD card.
1.7       wiki       46: 
                     47: # Updating the firmware
1.8       wiki       48:  - [rpi firmware files](https://github.com/raspberrypi/firmware/tree/master/boot)
                     49:    - Copy all files except 'kernel*img' into /boot and reboot
1.7       wiki       50: 
1.9       wiki       51: # Additional links
                     52:  - [ARM userland utilities](https://github.com/jaredmcneill/userland)
                     53:  - [Additional kernel drivers for VCHIQ](https://github.com/jaredmcneill/vchiq-netbsd)
                     54: 
1.1       jakllsch   55: # What works
1.6       wiki       56:  - multi-user boot with root on SD card
                     57:  - serial or graphics console (with EDID query / parsing)
                     58:  - X windows.
1.4       wiki       59:  - USB (host); control, interrupt and bulk transfers. Has some stability issues that are being worked on. man page missing.
                     60:  - USB Ethernet
                     61:  - RNG: works
1.2       jakllsch   62:  - I²C: works, could use enhancements, man page
                     63:  - SPI: works, could use enhancements, man page
1.1       jakllsch   64: 
                     65: # What needs work
1.5       wiki       66:  - VCHIQ; work in progress - will provide audio.
1.4       wiki       67:  - USB (host); isochronous transfers. DMA support.
                     68:  - DMA controller driver / dmover(9) backend
                     69:  - Teach sdhc(4) about dmover; not Raspberry Pi specific
                     70:  - hardfloat; not Raspberry Pi specific
                     71:  - earm ABI; not Raspberry Pi specific
1.1       jakllsch   72:  - GPIO