[Arm-netbook] RK3288 EOMA68 PCB

Stephen Paul Weber singpolyma at singpolyma.net
Sun Dec 4 21:10:59 GMT 2016

I also have a firefly board, and have been pretty happy with it (though I can't get audio out over the HDMI to my sound system... :P)

Sent from my BlackBerry 10 smartphone.
  Original Message  
From: Luke Kenneth Casson Leighton
Sent: Sunday, December 4, 2016 15:36
To: Linux on small ARM machines
Reply To: Linux on small ARM machines
Subject: [Arm-netbook] RK3288 EOMA68 PCB


for anyone who's interested, i've published the PDFs of both the
8-layer PCB and the schematics. i'm also documenting resources for
installing mainline u-boot and linux kernel on the RK3288 firefly
(t-firefly kindly sent me a developer board). apparently there are
people who have installed debian stable on the firefly (for headless
use) out-of-the-box, which is a really good sign.

the RK3288 because it's a slightly older SoC which was used in the
Asus C201 chromebook, it seems to have extremely prolific "HOWTOs" out
there, as well as stable support in the official chromium kernel
releases and a stack-load more.

the only thing which is a complete utter pain: the 2nd USB controller
(not the one that provides both 1 USB and 1 OTG port) has at least two
known hardware bugs. first is: it doesn't support USB 1.1 devices
(argh...) and second it doesn't come back up on resume.

fortunately the *other* USB controller - the one that has 1 USB2 Host
and 1 OTG port - works perfectly. on the firefly rk3288, i tried the
OTG Host converter cables i have, plugged in a USB keyboard, up it
came first time.

i think the RK3288 would be an awesome choice for EOMA68, not least
because it can do 4GB RAM.


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