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version 1.39, 2014/12/07 18:38:12 version 1.50, 2015/04/02 18:36:59
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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.
   
 [[!toc levels=2]]  [[!toc levels=2]]
   
 # Supported boards  # Supported boards
Line 36 Line 38
    - OTG (A20)     - OTG (A20)
  - SATA (A10/A20)   - SATA (A10/A20)
  - Gigabit Ethernet (GMAC)   - Gigabit Ethernet (GMAC)
  - HDMI (A20/A31)   - HDMI
    - DDC / EDID mode detection     - DDC / EDID mode detection (A20/A31)
    - Audio support     - Audio support (A20/A31)
  - Framebuffer (A20/A31)   - Framebuffer (A20/A31/A80)
  - IR receiver (A20/A31/A80)   - IR receiver (A20/A31/A80)
   
 # TODO  # TODO
  - SoCs   - A10
    - Cortex-A8: A10     - Interrupt controller
    - Cortex-A7/A15: A80 SMP     - EMAC
  - OTG (A31)   - A31
  - USB device mode     - OTG
  - Bluetooth / WiFi (Cubietruck, Hummingbird A31)     - IR transmitter
  - 3G (Hummingbird A31)     - 3G module
  - SD/MMC UHS-I support (needs sdmmc(4) changes)     - TV input
  - TV input (Hummingbird A31)   - A80
  - NAND     - MP
  - Fast Ethernet (EMAC)     - big.LITTLE support
  - IR transmitter (A20/A80)     - 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  # Installation
   
Line 62 Line 73
   
 * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beagleboard.img*  * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beagleboard.img*
 * Download a U-Boot build for your board  * Download a U-Boot build for your board
   * A10/A20: Download from the linux-sunxi web site <http://dl.linux-sunxi.org/nightly/u-boot-sunxi/u-boot-sunxi/u-boot-sunxi-latest/>    * 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/>.
   * A31: The standard u-boot-sunxi tree doesn't support A31 yet. Until sun6i support is merged, a build is available at <http://dis.invisible.ca/allwinner/a31/>   * Write the *u-boot-sunxi-with-spl.bin* loader to the empty space at the start of the base image:
 * Write the *u-boot-sunxi-with-spl.bin* loader to the base image:  
 [[!template  id=programlisting text="""  [[!template  id=programlisting text="""
 # dd if=u-boot-sunxi-with-spl.bin of=beagleboard.img bs=1k seek=8 conv=notrunc  # dd if=u-boot-sunxi-with-spl.bin of=beagleboard.img bs=1k seek=8 conv=notrunc
 """]]  """]]
 * Write the image to an SD card.  * Write the image to an SD card.
 * Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition.  * 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:  * Create or edit uEnv.txt on the MS-DOS partition:
 [[!template  id=programlisting text="""  [[!template  id=programlisting text="""
 bootargs=root=ld0a  bootargs=root=ld0a
Line 78  uenvcmd=mmc dev 0; mmc rescan; fatload m Line 88  uenvcmd=mmc dev 0; mmc rescan; fatload m
   
 ## A80 based boards  ## A80 based boards
   
 * Cubieboard 4 SDK (lubuntu) U-Boot env:  * Cubieboard 4 U-Boot for SD card: <http://ftp.netbsd.org/pub/NetBSD/misc/jmcneill/allwinner/a80/cubieboard4-uboot.tgz>
 [[!template  id=programlisting text="""  [[!template  id=programlisting text="""
 baudrate=115200  # dd if=u-boot-spl.bin of=/dev/sdd bs=1k seek=8
 boot_normal=fatload mmc 0:1 20007800 uimage;bootm 20007800  # dd if=u-boot-sun9iw1p1.bin of=/dev/sdd bs=1k seek=19096
 bootcmd=run setargs_cubie boot_normal  
 bootdelay=3  
 console=ttyS0,115200  
 console1=tty1  
 init=/init  
 loglevel=8  
 mmc_root=/dev/mmcblk0p2  
 setargs_cubie=setenv bootargs console=${console1} console=${console} root=${mmc_root} loglevel=${loglevel}  
 stderr=serial  
 stdin=serial  
 stdout=serial  
 """]]  """]]
   * First partition needs to be at +20MB offset. Format it as MSDOS, copy 'netbsd.ub' to it as 'uImage'.
   
 # Big (endian) fun  # Big (endian) fun
   
Line 140  a31# audiocfg list Line 140  a31# audiocfg list
 1: [*] audio1 @ awinhdmiaudio0: Allwinner HDMI 1.4, 2 playback channels  1: [*] audio1 @ awinhdmiaudio0: Allwinner HDMI 1.4, 2 playback channels
 """]]  """]]
   
 # Board specific notes  # MAC address
   
 ## Merrii Hummingbird A31  
   
 There doesn't appear to be a meaningful way to generate a MAC address on these boards. U-Boot from the A31 SDK and from the u-boot-sunxi tree both lack GMAC support, and the Security ID registers (at 0x01c23800) appear to be empty.  
   
 To overcome this, you can specify your own MAC address in *uEnv.txt*:  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*:
 [[!template  id=programlisting text="""  [[!template  id=programlisting text="""
 bootargs=root=ld0a awge0.mac-address=02:a0:3d:88:1a:1e  bootargs=root=ld0a awge0.mac-address=02:a0:3d:88:1a:1e
 """]]  """]]
Removed from v.1.39  
changed lines
  Added in v.1.50

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