IRC log for #arm-netbook on 20160802

00:11.47*** join/#arm-netbook tuliom (~tuliom@177.188.66.143)
00:15.16*** join/#arm-netbook tuliom (~tuliom@177.188.66.143)
08:08.15*** join/#arm-netbook bavier` (~bavier@chippewa-nat.cray.com)
08:21.19*** join/#arm-netbook lkcl (~lkcl@64.20.171.171)
08:21.55*** join/#arm-netbook M-jon (jonterracr@gateway/shell/matrix.org/x-dalxoafruqiiipwz)
08:23.31*** join/#arm-netbook stefanro (~stefan@185.22.141.214)
08:41.05*** join/#arm-netbook ganbold (~ganbold@173.244.215.173)
09:02.50*** join/#arm-netbook bavier` (~bavier@stpaul-nat.cray.com)
19:27.02*** join/#arm-netbook boycottg00gle (~user@dslb-094-216-240-201.094.216.pools.vodafone-ip.de)
20:37.22*** join/#arm-netbook Not_Jesus (~Not_Jesus@199.58.81.144)
21:20.14*** join/#arm-netbook isacdaavid (~isaac@207.249.116.3)
21:35.22ssvblkcl: regarding https://www.crowdsupply.com/eoma68/micro-desktop/updates/picking-a-processor
21:35.51ssvbrealistically, Allwinner A20 is only a 912MHz (!) processor, not 1.2GHz
21:37.16ssvbsee https://linux-sunxi.org/A20#DVFS
21:38.37ssvbrunning it at 1008MHz needs core voltage that is beyond what is documented to be safe in the manual (the manual lists 1.4V as the maximum)
21:39.21ssvband 1.2GHz is a recipe for trouble, most of the A20 processors are simply unable to run reliable at this clock speed
21:39.43ssvbhave you considered Allwinner H3?
21:49.59lkclssvb: ok appreciated
21:55.29ssvblkcl: regarding https://www.crowdsupply.com/eoma68/micro-desktop/updates/mainline-u-boot-and-kernel
21:56.12ssvbare you using an old and rather convoluted procedure for FEL USB boot, based on the boot0 binary?
21:56.26lkclssvb: gtta go out keep writing i'll be back later
21:56.57ssvbyou can do the same using https://linux-sunxi.org/FEL/USBBoot#Booting_U-Boot_over_USB
21:58.42ssvbthis way you only need a single "u-boot-sunxi-with-spl.bin" file, which is produced by the regular U-Boot build
21:59.26ssvbthere is no need for special 16K stubs and other bits and pieces
22:26.11ssvblkcl: regarding the "VPU (CEDAR) which has only been partly reverse-engineered" statement, have you tried https://github.com/linux-sunxi/libvdpau-sunxi ?
22:26.45ssvbthe point is that the most interesting functionality had been *fully* reverse engineered years ago
22:27.57ssvbyou are only missing the video encoding functionality and support for some less common media codecs
22:28.52ssvbbut the H.264 hardware accelerated video decoding works fine
22:30.52ssvboh, it had not been ported to the mainline kernel yet, but still you can do hardware accelerated video playback with the 3.4 kernel, using only 100% free software without any blobs

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