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version 1.50, 2015/04/02 18:36:59 version 1.60, 2017/08/11 06:17:30
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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 7.0 has support for A20 and A31 SoCs. NetBSD -current adds support for A80 SoCs.
   
 [[!toc levels=2]]  [[!toc levels=2]]
   
Line 62  NetBSD 7.0 has support for A10, A20, and Line 62  NetBSD 7.0 has support for A10, A20, and
    - Audio codec     - Audio codec
  - All   - All
    - USB device mode     - USB device mode
    - SD/MMC UHS-I support (needs sdmmc(4) changes)  
    - SDIO (Bluetooth / WiFi)     - SDIO (Bluetooth / WiFi)
    - NAND     - NAND
    - VGA (Cubietruck, Hummingbird A31, Cubieboard4)     - VGA (Cubietruck, Hummingbird A31, Cubieboard4)
   
 # Installation  # Installation
   
 ## A10 / A20 / A31 based boards  ## A20 / A31 based boards
   
 * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/* such as *beagleboard.img*  * Start with an ARMv7 image from *evbarm-earmv7hf/binary/gzimg/armv7.img.gz* from
   NetBSD 7.0
 * Download a U-Boot build for your board  * 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/>.    * 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-20160902T174215-b615267/>.
   * Decompress the image via [[!template id=man name="gunzip" section="1"]]:
   [[!template  id=programlisting text="""
   # gunzip armv7.img.gz
   """]]
 * 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 empty space at the start of 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=armv7.img bs=1k seek=8 conv=notrunc
 """]]  """]]
 * Write the image to an SD card.  * Write the image to an SD card (e.g.: if the SD card is recognised as *sd0* -
 * Copy the kernel (netbsd.ub) for your board to the root of the MS-DOS partition on the SD card.  please check the [[!template id=man name="dmesg" section="8"]] output to be
 * Create or edit uEnv.txt on the MS-DOS partition:  sure!):
 [[!template  id=programlisting text="""  [[!template  id=programlisting text="""
 bootargs=root=ld0a  # dd if=armv7.img of=/dev/rsd0d bs=1m
 uenvcmd=mmc dev 0; mmc rescan; fatload mmc 0:1 82000000 netbsd.ub; bootm 82000000  
 """]]  """]]
   * Copy the kernel (*netbsd.ub*) for your board to the root of the MS-DOS
   partition on the SD card
   * Prepare a *boot.cmd* file for U-Boot boot loader containing the needed
   instructions regarding how to boot the kernel (basically the *bootargs* that are
   passed to the kernel and how to load the kernel from a device to the RAM and
   then boot it from the memory address):
   
   [[!template  id=filecontent name="boot.cmd" text="""
   setenv kernel_addr      82000000
   setenv kernel           netbsd.ub
   setenv bootargs         "root=ld0a"
   
   fatload mmc 0:1 ${kernel_addr} ${kernel}
   bootm ${kernel_addr}
   """]]
   * The *boot.cmd* text file should be converted in a script image - *boot.scr*
   for U-Boot via [[!template id=man name="mkubootimage" section="1"]]:
   [[!template  id=programlisting text="""
   # mkubootimage -A arm -n armv7 -T script boot.cmd boot.scr
   """]]
   * Copy the *boot.scr* to the MS-DOS partition of the SD card
   
 ## A80 based boards  ## A80 based boards
   
Line 100  uenvcmd=mmc dev 0; mmc rescan; fatload m Line 124  uenvcmd=mmc dev 0; mmc rescan; fatload m
 You can run this boards with a little endian (this is the default and implied by above install instructions)  You can run this boards with a little endian (this is the default and implied by above install instructions)
 or with a big endian kernel and userland. However, kernel and userland endianness needs to match.  or with a big endian kernel and userland. However, kernel and userland endianness needs to match.
   
 To build a big endian release (or sets) use   To build a big endian release (or sets) use
 [[!template  id=programlisting text="""  [[!template  id=programlisting text="""
 ./build.sh -m evbearmv7hf-eb   ./build.sh -m evbearmv7hf-eb
 """]]  """]]
 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.  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.
   
Line 112  Board configuration scripts can be found Line 136  Board configuration scripts can be found
   
 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:  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:
   
 [[!template  id=programlisting text="""  [[!template  id=filecontent name="uEnv.txt" text="""
 bootargs=root=ld0a sysconfig=0x43000000  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  uenvcmd=mmc dev 0; mmc rescan; fatload mmc 0:1 43000000 cubieboard2.bin; fatload mmc 0:1 82000000 netbsd.ub; bootm 82000000
 """]]  """]]
Line 143  a31# audiocfg list Line 167  a31# audiocfg list
 # MAC address  # 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*:  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=filecontent name="uEnv.txt" 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.1.50  
changed lines
  Added in v.1.60

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