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[[!meta title="NetBSD/evbarm on Allwinner Technology SoCs"]]

NetBSD supports many boards based on Allwinner SoCs. Starting with NetBSD 8.0, FDT is used to configure devices. As a result, a large number of boards and configurations can be supported with a single kernel.

<img src="https://pbs.twimg.com/media/DIRGmsOXcAEJu-j.jpg" width="300">
<img src="https://pbs.twimg.com/media/DJYA7SCXUAEvEQk.jpg" width="300">

[[!toc levels=2]]

# Supported SoCs

<table>
  <thead>
    <tr>
      <th>Family</th>
      <th>SoC</th>
      <th>NetBSD version</th>
      <th>Example boards</th>
      <th>Notes</th>
    </tr>
  </thead>
  <tbody>
    <tr><td>sun4i</td><td>A10</td><td>8.99.3 and later</td><td><a href="https://www.olimex.com/Products/OLinuXino/A10/A10-OLinuXino-LIME/open-source-hardware">Olimex A10-OLinuXino-LIME</a><td></td></tr>
    <tr><td>sun5i</td><td>A10s</td><td>-</td><td></td></tr>
    <tr><td>sun5i</td><td>A13</td><td>8.99.2 and later</td><td><a href="https://www.olimex.com/Products/OLinuXino/A13/A13-OLinuXino/open-source-hardware">Olimex A13-OLinuXino</a>, <a href="https://www.olimex.com/Products/OLinuXino/A13/A13-OLinuXino-MICRO/open-source-hardware">Olimex A13-OLinuXino-MICRO</a></td></tr>
    <tr><td>sun5i</td><td>GR8</td><td>8.99.5</td><td><a href="https://getchip.com/pages/chippro">C.H.I.P. Pro</a></td><td></td></tr>
    <tr><td>sun5i</td><td>R8</td><td>8.99.2 and later</td><td><a href="https://getchip.com/pages/chip">C.H.I.P.</a>, <a href="https://getchip.com/pages/pocketchip">Pocket C.H.I.P.</a></td><td></td></tr>
    <tr><td>sun6i</td><td>A31</td><td>7.0 and later</td><td><a href="http://linux-sunxi.org/Merrii_Hummingbird_A31">Merrii Hummingbird A31</a></td><td></td></tr>
    <tr><td>sun6i</td><td>A31s</td><td>-</td><td></td><td></td></tr>
    <tr><td>sun7i</td><td>A20</td><td>7.0 and later</td><td><a href="https://linux-sunxi.org/Cubietech_Cubieboard2">Cubietech Cubieboard 2</a>, <a href="https://linux-sunxi.org/Cubietruck">Cubietech Cubietruck</a>, <a href="http://linux-sunxi.org/LeMaker_Banana_Pi">LeMaker Banana Pi</a></td><td></td></tr>
    <tr><td>sun8i</td><td>A23</td><td>-</td><td></td></tr>
    <tr><td>sun8i</td><td>A33</td><td>-</td><td><a href="https://www.olimex.com/Products/OLinuXino/A33/A33-OLinuXino/open-source-hardware">Olimex A33-OLinuXino</a></td></tr>
    <tr><td>sun8i</td><td>R40</td><td>-</td><td><a href="http://www.banana-pi.org/m2u.html">Sinovoip Banana Pi BPI-M2U</a></td></tr>
    <tr><td>sun8i</td><td>A83T</td><td>8.0 and later</td><td><a href="http://www.banana-pi.org/m3.html">Sinovoip Banana Pi BPI-M3</a></td><td></td></tr>
    <tr><td>sun8i</td><td>H2+</td><td>8.0 and later</td><td><a href="http://www.orangepi.org/orangepizero/">Xunlong Orange Pi Zero</a></td><td></td></tr>
    <tr><td>sun8i</td><td>H3</td><td>8.0 and later</td><td><a href="http://nanopi.io/nanopi-neo.html">FriendlyARM NanoPi NEO</a>, <a href="http://www.orangepi.org/orangepiplus2e/">Xunlong Orange Pi Plus 2E</a></td><td></td></tr>
    <tr><td>sun8i</td><td>V3s</td><td>-</td><td><a href="https://www.indiegogo.com/projects/licheepi-zero-6-extensible-linux-module-on-finger-wifi-diy#/">Lichee Pi Zero</a></td><td></td></tr>
    <tr><td>sun9i</td><td>A80</td><td>8.0 and later</td><td><a href="http://linux-sunxi.org/Cubietech_Cubieboard4">Cubietech Cubieboard 4</a></td><td></td></tr>
    <tr><td>sun50i</td><td>A64</td><td>8.99.2 and later</td><td><a href="https://www.pine64.org/?page_id=1194">Pine64</a>, <a href="https://www.pine64.org/?page_id=3707">Pinebook</a></td><td></td></tr>
    <tr><td>sun50i</td><td>H5</td><td>8.99.4 and later</td><td><a href="http://www.friendlyarm.com/index.php?route=product/product&path=69&product_id=180">FriendlyARM NanoPi NEO2, <a href="http://www.friendlyarm.com/index.php?route=product/product&path=69&product_id=196">FriendlyARM NanoPi NEO Plus2</a></td><td></td></tr>
    <tr><td>sun50i</td><td>H6</td><td>8.99.14 and later</td><td><a href="http://www.orangepi.org/OrangePiOneplus/">Orange Pi One Plus</a>, <a href="https://www.pine64.org/?product_cat=pine-h64-boards">Pine H64</a></td></tr>
  </tbody>
</table>


# Supported hardware

Please refer to the [SUNXI kernel config](https://nxr.netbsd.org/xref/src/sys/arch/evbarm/conf/SUNXI) for the most up-to-date list of supported hardware.

<table>
  <thead>
    <tr>
      <th>Device</th>
      <th>Supported</th>
      <th>Notes</th>
    </tr>
  </thead>
  <tbody>
    <tr><td>Audio codec</td><td>Yes</td><td>Supported on sun4i, sun5i, sun6i, sun7i, sun8i-h2+, sun8i-h3, sun50i-h5, sun50i-a64</td></tr>
    <tr><td>Crypto engine</td><td>-</td><td></td></tr>
    <tr><td>CSI</td><td>-</td><td></td></tr>
    <tr><td>DMA</td><td>Yes</td><td></td></tr>
    <tr><td>Fast Ethernet (sun4i/sun5i/sun7i)</td><td>Yes</td><td></td></tr>
    <tr><td>Framebuffer</td><td>Yes</td><td>Uses simplefb configured by bootloader</td></tr>
    <tr><td>Gigabit Ethernet (sun6i/sun7i/sun9i)</td><td>Yes</td><td></td></tr>
    <tr><td>Gigabit Ethernet (sun8i/sun50i)</td><td>Yes</td><td></td></tr>
    <tr><td>GPIO</td><td>Yes</td><td></td></tr>
    <tr><td>GPU</td><td>-</td><td></td></tr>
    <tr><td>I2C</td><td>Yes</td><td></td></tr>
    <tr><td>I2S/PCM</td><td>Experimental</td><td></td></tr>
    <tr><td>IR transceiver</td><td>-</td><td></td></tr>
    <tr><td>NAND</td><td>Yes</td><td></td></tr>
    <tr><td>P2WI/RSB</td><td>Yes</td><td></td></tr>
    <tr><td>PCIe</td><td>-</td><td>H6</td></tr>
    <tr><td>PWM</td><td>Yes</td><td></td></tr>
    <tr><td>RTC</td><td>Yes</td><td></td></tr>
    <tr><td>SATA</td><td>Yes</td><td></td></tr>
    <tr><td>SD/MMC</td><td>Yes</td><td></td></tr>
    <tr><td>SMP</td><td>Yes</td><td>32-bit only. Uses PSCI support in firmware</td></tr>
    <tr><td>SPDIF</td><td>-</td><td></td></tr>
    <tr><td>SPI</td><td>Yes</td><td></td></tr>
    <tr><td>Thermal sensors</td><td>Yes</td><td></td></tr>
    <tr><td>Touch screen</td><td>Yes</td><td></td></tr>
    <tr><td>UART</td><td>Yes</td><td></td></tr>
    <tr><td>USB 2.0</td><td>Yes</td><td></td></tr>
    <tr><td>USB 3.0</td><td>Yes</td><td></td></tr>
    <tr><td>USB OTG</td><td>Experimental</td><td></td></tr>
    <tr><td>Watchdog timer</td><td>Yes</td><td></td></tr>
  </tbody>
</table>

# Installation

- Download or build **armv7.img** (32-bit) or **arm64.img** (64-bit) from NetBSD -current
- Write the image to disk: **dd if=armv7.img of=/dev/rld0d bs=1m conv=sync**
- Install a board-specific U-Boot (2017.07 or later) from pkgsrc to the SD card: **dd if=/usr/pkg/share/u-boot/&lt;boardname&gt;/u-boot-sunxi-with-spl.bin of=/dev/rld0d bs=1k seek=8 conv=sync**

# Tips and tricks

## Video overscan compensation

On some television models, the borders of the screen may be cut off. If your television doesn't have an option to disable overscan, you can enable overscan compensation by entering the following commands at the U-Boot prompt:

    setenv video-mode sunxi:1280x720-24,overscan_x=32,overscan_y=20
    saveenv
    reset

## Pinebook function keys

The sleep (Fn+Esc), home (Fn+F1), volume down (Fn+F3), volume up (Fn+F4), and mute (Fn+F5) keys on the keyboard are mapped to uhid(4) devices.

Create the following config file:

[[!template  id=filecontent name="/etc/usbhidaction.conf" text="""
Consumer:Consumer_Control.Consumer:Volume_Up                    1
        mixerctl -n -w outputs.master++
Consumer:Consumer_Control.Consumer:Volume_Down                  1
        mixerctl -n -w outputs.master--
Consumer:Consumer_Control.Consumer:Mute                         1
        mixerctl -n -w outputs.mute++
Consumer:Consumer_Control.Consumer:AC_Home                      1
        /etc/powerd/scripts/hotkey_button AC_Home pressed
Generic_Desktop:System_Control.Generic_Desktop:System_Sleep     1
        /etc/powerd/scripts/sleep_button System_Sleep pressed
"""]]

Then start two copies of usbhidaction:

[[!template  id=programlisting text="""
# /usr/bin/usbhidaction -c /etc/usbhidaction.conf -f /dev/uhid0 -i -p /var/run/usbhidaction-uhid0.pid 
# /usr/bin/usbhidaction -c /etc/usbhidaction.conf -f /dev/uhid1 -i -p /var/run/usbhidaction-uhid1.pid 
"""]]

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