1 A20-OLinuXino-LIME and A20-OLinuXino-MICRO
6 These are open hardware boards, all based on the Allwinner A20 SoC.
8 for more details about the boards see the following pages:
9 - https://www.olimex.com/Products/OLinuXino/open-source-hardware
10 - https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-MICRO/
11 - https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-LIME/
12 - https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-LIME2/
14 The following defconfigs are available:
15 - olimex_a20_olinuxino_micro_defconfig
16 for the A20-OLinuXino-MICRO board using mainline kernel
17 - olimex_a20_olinuxino_lime_defconfig
18 for the A20-OLinuXino-LIME board using mainline kernel
19 - olimex_a20_olinuxino_lime_mali_defconfig
20 for the A20-OLinuXino-LIME board using legacy linux-sunxi kernel
21 - olimex_a20_olinuxino_lime2_defconfig
22 for the A20-OLinuXino-LIME2 board using mainline kernel
24 The legacy linux-sunxi kernels are based on the vendor code drops.
25 They are only useful when accelerated 3D graphics and multimedia support
26 is strictly necessary.
28 The Mainline Kernel is already a much better choice for a headless server.
29 And also the mainline kernel works fine even for a basic Linux desktop
30 system running on top of a simple framebuffer, which may be good enough for
31 the users who do not need fancy 3D graphics or video playback acceleration.
33 (see http://linux-sunxi.org/Linux_Kernel for more details)
40 $ make <board>_defconfig
42 Compile everything and build the rootfs image:
49 After building, you should get a tree like this:
53 +-- rootfs.ext4 -> rootfs.ext2
54 +-- script.bin (lime_mali)
56 +-- sun7i-a20-olinuxino-lime.dtb (lime, mainline)
57 +-- sun7i-a20-olinuxino-lime2.dtb (lime2, mainline)
58 +-- sun7i-a20-olinuxino-micro.dtb (micro, mainline)
60 +-- u-boot-sunxi-with-spl.bin
64 How to write the SD card
65 ========================
67 The sdcard.img file is a complete bootable image ready to be written
68 on the boot medium. To install it, simply copy the image to a uSD
71 # dd if=output/images/sdcard.img of=/dev/sdX
73 Where 'sdX' is the device node of the uSD.
75 Eject the SD card, insert it in the A20-OLinuXino board, and power it up.