2015-07-01 12:48:07 +02:00
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A20-OLinuXino-LIME and A20-OLinuXino-MICRO
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2015-06-26 12:06:56 +02:00
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Intro
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=====
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2016-02-23 01:24:25 +01:00
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These are open hardware boards, all based on the Allwinner A20 SoC.
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2015-07-01 12:48:07 +02:00
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for more details about the boards see the following pages:
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- https://www.olimex.com/Products/OLinuXino/open-source-hardware
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- https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-MICRO/
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- https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-LIME/
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2016-02-23 01:24:25 +01:00
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- https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-LIME2/
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2015-07-01 12:48:07 +02:00
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The following defconfigs are available:
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- olimex_a20_olinuxino_micro_defconfig
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for the A20-OLinuXino-MICRO board using mainline kernel
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- olimex_a20_olinuxino_lime_defconfig
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for the A20-OLinuXino-LIME board using mainline kernel
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- olimex_a20_olinuxino_lime_mali_defconfig
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for the A20-OLinuXino-LIME board using legacy linux-sunxi kernel
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2015-08-17 18:01:45 +02:00
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- olimex_a20_olinuxino_lime2_defconfig
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for the A20-OLinuXino-LIME2 board using mainline kernel
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2015-06-26 12:06:56 +02:00
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2015-06-26 12:06:57 +02:00
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The legacy linux-sunxi kernels are based on the vendor code drops.
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2015-06-30 00:05:20 +02:00
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They are only useful when accelerated 3D graphics and multimedia support
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2015-06-26 12:06:57 +02:00
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is strictly necessary.
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The Mainline Kernel is already a much better choice for a headless server.
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And also the mainline kernel works fine even for a basic Linux desktop
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system running on top of a simple framebuffer, which may be good enough for
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the users who do not need fancy 3D graphics or video playback acceleration.
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2015-06-30 00:05:21 +02:00
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(see http://linux-sunxi.org/Linux_Kernel for more details)
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2015-06-26 12:06:56 +02:00
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How to build it
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===============
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2015-07-01 12:48:07 +02:00
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Configure Buildroot:
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2015-06-26 12:06:57 +02:00
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2015-07-01 12:48:07 +02:00
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$ make <board>_defconfig
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2015-06-26 12:06:57 +02:00
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2015-06-26 12:06:56 +02:00
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Compile everything and build the rootfs image:
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$ make
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Result of the build
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-------------------
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After building, you should get a tree like this:
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output/images/
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+-- rootfs.ext2
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+-- rootfs.ext4 -> rootfs.ext2
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2015-07-01 12:48:07 +02:00
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+-- script.bin (lime_mali)
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2016-02-23 01:24:32 +01:00
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+-- sdcard.img
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2015-07-01 12:48:07 +02:00
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+-- sun7i-a20-olinuxino-lime.dtb (lime, mainline)
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2015-08-17 18:01:45 +02:00
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+-- sun7i-a20-olinuxino-lime2.dtb (lime2, mainline)
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2015-07-01 12:48:07 +02:00
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+-- sun7i-a20-olinuxino-micro.dtb (micro, mainline)
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2015-06-26 12:06:56 +02:00
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+-- u-boot.bin
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+-- u-boot-sunxi-with-spl.bin
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`-- zImage
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2016-02-23 01:24:33 +01:00
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How to write the SD card
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========================
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2016-02-23 01:24:30 +01:00
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The sdcard.img file is a complete bootable image ready to be written
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on the boot medium. To install it, simply copy the image to a uSD
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card:
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# dd if=output/images/sdcard.img of=/dev/sdX
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Where 'sdX' is the device node of the uSD.
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2015-07-01 12:48:07 +02:00
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Eject the SD card, insert it in the A20-OLinuXino board, and power it up.
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2015-06-26 12:06:56 +02:00
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