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version 1.50, 2015/04/02 18:36:59 version 1.95, 2018/11/20 12:03:24
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 [[!meta title="NetBSD/evbarm on Allwinner Technology SoCs"]]  [[!meta title="NetBSD/evbarm on Allwinner Technology SoCs"]]
   
 NetBSD 7.0 has support for A10, A20, and A31 SoCs. NetBSD -current adds support for A80 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.
   
 [[!toc levels=2]]  <img src="https://pbs.twimg.com/media/DIRGmsOXcAEJu-j.jpg" width="300">
   <img src="https://pbs.twimg.com/media/DJYA7SCXUAEvEQk.jpg" width="300">
   
 # Supported boards  [[!toc levels=2]]
  - [Banana Pi](http://www.bananapi.org/p/product.html) (BPI)  
  - Cubieboard 2 (CUBIEBOARD)  
  - [Cubieboard 4](http://cubieboard.org/model/cb4/) (ALLWINNER_A80) *NetBSD-current*  
  - Cubietruck (CUBIETRUCK)  
  - [Merrii Hummingbird A31](http://www.merrii.com/en/pla_d.asp?id=172) (HUMMINGBIRD_A31)  
   
 # Supported hardware  # Supported SoCs
  - SoCs  
    - Cortex-A7: A20 (2-core), A31 (4-core), A80  
    - Cortex-A7/A15: A80 (4-core A7 + 4-core A15)  
  - SD/MMC controller (DMA)  
  - DMA controller  
  - GPIO  
    - Configuration using FEX scripts is supported  
  - UART  
  - I2C  
  - P2WI (A31) / RSB (A80)  
  - PMU  
    - AXP209 (A20)  
    - AXP221 (A31)  
    - AXP806 (A80)  
    - AXP809 (A80)  
  - Watchdog timer  
  - RTC  
    - A20/A31: integrated RTC, PCF8563  
    - A80: AC100  
  - Audio codec (A20/A31)  
  - USB host  
    - OHCI  
    - EHCI  
    - OTG (A20)  
  - SATA (A10/A20)  
  - Gigabit Ethernet (GMAC)  
  - HDMI  
    - DDC / EDID mode detection (A20/A31)  
    - Audio support (A20/A31)  
  - Framebuffer (A20/A31/A80)  
  - IR receiver (A20/A31/A80)  
   
 # TODO  
  - A10  
    - Interrupt controller  
    - EMAC  
  - A31  
    - OTG  
    - IR transmitter  
    - 3G module  
    - TV input  
  - A80  
    - MP  
    - big.LITTLE support  
    - USB3 (OTG and XHCI)  
    - IR transmitter  
    - HDMI (DDC and mode setting; currently relies on U-Boot for setup)  
    - Audio codec  
  - All  
    - USB device mode  
    - SD/MMC UHS-I support (needs sdmmc(4) changes)  
    - SDIO (Bluetooth / WiFi)  
    - NAND  
    - VGA (Cubietruck, Hummingbird A31, Cubieboard4)  
   
 # Installation  <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>
   
 ## A10 / A20 / A31 based boards  
   
 * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beagleboard.img*  # Supported hardware
 * Download a U-Boot build for your board  
   * Download the correct build from the linux-sunxi web site <http://dl.linux-sunxi.org/nightly/u-boot-sunxi/u-boot-sunxi-mainline/u-boot-sunxi-mainline-latest/>.  
 * Write the *u-boot-sunxi-with-spl.bin* loader to the empty space at the start of the base image:  
 [[!template  id=programlisting text="""  
 # dd if=u-boot-sunxi-with-spl.bin of=beagleboard.img bs=1k seek=8 conv=notrunc  
 """]]  
 * Write the image to an SD card.  
 * Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition on the SD card.  
 * Create or edit uEnv.txt on the MS-DOS partition:  
 [[!template  id=programlisting text="""  
 bootargs=root=ld0a  
 uenvcmd=mmc dev 0; mmc rescan; fatload mmc 0:1 82000000 netbsd.ub; bootm 82000000  
 """]]  
   
 ## A80 based boards  Please refer to the [32-bit](https://nxr.netbsd.org/xref/src/sys/arch/evbarm/conf/SUNXI) or [64-bit](https://nxr.netbsd.org/xref/src/sys/arch/evbarm/conf/GENERIC64) kernel configs for the most up-to-date list of supported hardware.
   
 * Cubieboard 4 U-Boot for SD card: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/allwinner/a80/cubieboard4-uboot.tgz>  <table>
 [[!template  id=programlisting text="""    <thead>
 # dd if=u-boot-spl.bin of=/dev/sdd bs=1k seek=8      <tr>
 # dd if=u-boot-sun9iw1p1.bin of=/dev/sdd bs=1k seek=19096        <th>Device</th>
 """]]        <th>Supported</th>
 * First partition needs to be at +20MB offset. Format it as MSDOS, copy 'netbsd.ub' to it as 'uImage'.        <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>CAN controller</td><td>Yes</td><td></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>PSCI</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>
   
 # Big (endian) fun  # Installation
   
 You can run this boards with a little endian (this is the default and implied by above install instructions)  - Download or build **armv7.img** (32-bit) or **arm64.img** (64-bit) from NetBSD -current
 or with a big endian kernel and userland. However, kernel and userland endianness needs to match.  - 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
     (the `u-boot-sunxi-with-spl.bin`-s are provided by `sysutils/u-boot-<boardname>` packages):
     **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**
   
 To build a big endian release (or sets) use   If your SoC has a SATA controller and you would like to install on
 [[!template  id=programlisting text="""  an hard disk and use a SD card only for u-boot please give a look
 ./build.sh -m evbearmv7hf-eb   to [[ports/evbarm/install_using_sysinst]].
 """]]  
 where -eb means endianness big, hf is hardware floating point support, and earm is the modern "extended" ABI for ARM CPUs, and finally v7 is version 7 of the supported instruction set.  
   
 # FEX scripts  # Tips and tricks
   
 Board configuration scripts can be found here: <https://github.com/linux-sunxi/sunxi-boards/blob/master/sys_config>. You can compile them with the "fex2bin" tool found here: <https://github.com/linux-sunxi/sunxi-tools>.  ## Video overscan compensation
   
 To use, copy the compiled FEX to your MS-DOS partition, load it with U-Boot, and then tell the kernel where to find it with the "sysconfig=" boot option. For example, uEnv.txt on a Cubieboard2 might look like this:  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:
   
 [[!template  id=programlisting text="""  
 bootargs=root=ld0a sysconfig=0x43000000  
 uenvcmd=mmc dev 0; mmc rescan; fatload mmc 0:1 43000000 cubieboard2.bin; fatload mmc 0:1 82000000 netbsd.ub; bootm 82000000  
 """]]  
   
 Some pre-compiled .bin files can be found here: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/allwinner/fex/>      setenv video-mode sunxi:1280x720-24,overscan_x=32,overscan_y=20
       saveenv
       reset
   
 # Framebuffer console  ## Pinebook function keys
   
 To use HDMI for the console device, add *console=fb* to bootargs in uEnv.txt.  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.
   
 If the connected display does not let you disable overscan, you can add a margin to the framebuffer by with the *fb.margin* bootargs option. For example, to set a 25-pixel margin around the screen, add *fb.margin=25* to uEnv.txt  Create the following config file:
   
 # HDMI audio  [[!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
   """]]
   
 The default audio device is the analog audio codec. To change the default device, use the *audiocfg* command:  Then start two copies of usbhidaction:
   
 [[!template  id=programlisting text="""  [[!template  id=programlisting text="""
 a31# audiocfg list  # /usr/bin/usbhidaction -c /etc/usbhidaction.conf -f /dev/uhid0 -i -p /var/run/usbhidaction-uhid0.pid 
 0: [*] audio0 @ awinac0: Allwinner CODEC A31, 2 playback channels  # /usr/bin/usbhidaction -c /etc/usbhidaction.conf -f /dev/uhid1 -i -p /var/run/usbhidaction-uhid1.pid 
 1: [ ] audio1 @ awinhdmiaudio0: Allwinner HDMI 1.4, 2 playback channels  
 a31# audiocfg default 1  
 setting default audio device to audio1  
 a31# audiocfg list  
 0: [ ] audio0 @ awinac0: Allwinner CODEC A31, 2 playback channels  
 1: [*] audio1 @ awinhdmiaudio0: Allwinner HDMI 1.4, 2 playback channels  
 """]]  """]]
   
 # MAC address  
   
 On boards where the ethernet MAC address cannot be determmined, a random MAC address will be generated every boot. You can override this behaviour by specifying a MAC address in *uEnv.txt*:  # Links
 [[!template  id=programlisting text="""  
 bootargs=root=ld0a awge0.mac-address=02:a0:3d:88:1a:1e  [[ports/evbarm/install_using_sysinst]]
 """]]  
Removed from v.1.50  
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  Added in v.1.95

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