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| Manufacturer usually prepare one kernel which barely works and in many cases they don't cooperate with community. (Then they move to new board). Code hasn't been up-streamed, probably nobody is working any more on this, so new kernel can't exists. That's all we got. 
 But.
 
 There is a community effort to bring mainline Linux to those devices. A10/20 is working fine, but they are old chips. H3 just arrived and I haven't see any progress since then.
 http://linux-sunxi.org/Linux_mainlining_effort
 
 There is also no sign of it in u-boot.
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