readme.txt 2.0 KB

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  1. A20-OLinuXino-LIME and A20-OLinuXino-MICRO
  2. Intro
  3. =====
  4. These are open hardware boards, all based on the Allwinner A20 SoC.
  5. for more details about the boards see the following pages:
  6. - https://www.olimex.com/Products/OLinuXino/open-source-hardware
  7. - https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-MICRO/
  8. - https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-LIME/
  9. - https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-LIME2/
  10. The following defconfigs are available:
  11. - olimex_a20_olinuxino_micro_defconfig
  12. for the A20-OLinuXino-MICRO board using mainline kernel
  13. - olimex_a20_olinuxino_lime_defconfig
  14. for the A20-OLinuXino-LIME board using mainline kernel
  15. - olimex_a20_olinuxino_lime2_defconfig
  16. for the A20-OLinuXino-LIME2 board using mainline kernel
  17. The Mainline Kernel is already a much better choice for a headless server.
  18. And also the mainline kernel works fine even for a basic Linux desktop
  19. system running on top of a simple framebuffer, which may be good enough for
  20. the users who do not need fancy 3D graphics or video playback acceleration.
  21. (see http://linux-sunxi.org/Linux_Kernel for more details)
  22. How to build it
  23. ===============
  24. Configure Buildroot:
  25. $ make <board>_defconfig
  26. Compile everything and build the rootfs image:
  27. $ make
  28. Result of the build
  29. -------------------
  30. After building, you should get a tree like this:
  31. output/images/
  32. +-- rootfs.ext2
  33. +-- rootfs.ext4 -> rootfs.ext2
  34. +-- sdcard.img
  35. +-- sun7i-a20-olinuxino-lime.dtb (lime, mainline)
  36. +-- sun7i-a20-olinuxino-lime2.dtb (lime2, mainline)
  37. +-- sun7i-a20-olinuxino-micro.dtb (micro, mainline)
  38. +-- u-boot.bin
  39. +-- u-boot-sunxi-with-spl.bin
  40. `-- zImage
  41. How to write the SD card
  42. ========================
  43. The sdcard.img file is a complete bootable image ready to be written
  44. on the boot medium. To install it, simply copy the image to a uSD
  45. card:
  46. # dd if=output/images/sdcard.img of=/dev/sdX
  47. Where 'sdX' is the device node of the uSD.
  48. Eject the SD card, insert it in the A20-OLinuXino board, and power it up.