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- A20-OLinuXino-LIME and A20-OLinuXino-MICRO
- Intro
- =====
- These are open hardware boards, all based on the Allwinner A20 SoC.
- for more details about the boards see the following pages:
- - https://www.olimex.com/Products/OLinuXino/open-source-hardware
- - https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-MICRO/
- - https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-LIME/
- - https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-LIME2/
- The following defconfigs are available:
- - olimex_a20_olinuxino_micro_defconfig
- for the A20-OLinuXino-MICRO board using mainline kernel
- - olimex_a20_olinuxino_lime_defconfig
- for the A20-OLinuXino-LIME board using mainline kernel
- - olimex_a20_olinuxino_lime2_defconfig
- for the A20-OLinuXino-LIME2 board using mainline kernel
- The Mainline Kernel is already a much better choice for a headless server.
- And also the mainline kernel works fine even for a basic Linux desktop
- system running on top of a simple framebuffer, which may be good enough for
- the users who do not need fancy 3D graphics or video playback acceleration.
- (see http://linux-sunxi.org/Linux_Kernel for more details)
- How to build it
- ===============
- Configure Buildroot:
- $ make <board>_defconfig
- Compile everything and build the rootfs image:
- $ make
- Result of the build
- -------------------
- After building, you should get a tree like this:
- output/images/
- +-- rootfs.ext2
- +-- rootfs.ext4 -> rootfs.ext2
- +-- sdcard.img
- +-- sun7i-a20-olinuxino-lime.dtb (lime, mainline)
- +-- sun7i-a20-olinuxino-lime2.dtb (lime2, mainline)
- +-- sun7i-a20-olinuxino-micro.dtb (micro, mainline)
- +-- u-boot.bin
- +-- u-boot-sunxi-with-spl.bin
- `-- zImage
- How to write the SD card
- ========================
- The sdcard.img file is a complete bootable image ready to be written
- on the boot medium. To install it, simply copy the image to a uSD
- card:
- # dd if=output/images/sdcard.img of=/dev/sdX
- Where 'sdX' is the device node of the uSD.
- Eject the SD card, insert it in the A20-OLinuXino board, and power it up.
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