s812us

@hexdump Thank you very much for the detailed & thorough response! I have looked at your github with kernel sources & cloned the s812 mainline kernel & your repo. so basically is there any special environment or tools i have to install in order to start compiling the kernel or i can just config, build & apply your patches? Thanks again for your response it has been very helpful!

So follow up to my previous message ive been able to find the culprit of non working ethernet on the meson8m2-m8s.dtb file: I decompiled both DTB's & compared the ethernet sections and was able to narrow it to the following parameter: phy-connection-type. when it is set to "rgmii" ethernet is not working, but when set to "rgmii-id" ethernet is working! (referenced from https://patchwork.kernel.org/patch/9447579/) so i recompiled the DTS got ethernet working but now cpu speed is always fixed on 1.2GHZ no matter what i try...so i reverted back to meson8m2-mxiii-plus.dtb. I now have the following problem: i cant run docker probably due to some missing kernel modules which are missing, im familiar with comiling kernels for x86/64 & openwrt but never compiled for this kind of device, can someone point me to a good resource on how to compile kernel for S812 devices? Thanks!

hi @RaptorSDS, thanks for answering! the meson8m2-m8s.dtb was my first try and all seemed ok & better than all DTB's because it detected wireless/bluetooth also. until i tried using ethernet & it doesnt work - even though its detected as eth0 with mac address it has failure to get ip address, cant connect to the network, cant get ip address (dhcp/static) & when restarting eth0 interface it says "connection timed out". the device has RTL8211F ethernet chipset & dtb of meson8m2-mxiii-plus detects ethernet (but not wireless/bluetooth...) im using Armbian_20.05.5_Aml-s812_buster_current_5.7.0-rc6_20200523.img. This is dmesg.log from meson8m2-mxiii-plus.dtb with working ethernet : (exceptions are from HDMI connected, disregard it) This is dmesg.log from meson8m2-m8s.dtb with non-working ethernet :(exceptions are from HDMI connected, disregard it) maybe someone can help?

@balbes150 thank you for answering, appreciate it! @RaptorSDS I get "out of range" signal on my monitor but i can see the picture just fine (it gives an "out of range" signal every few seconds but i can see the console just fine) is there a way to solve it? im using HDMI on a 4K monitor. For anyone interested I have an M8s+ device with S812/2G ram/8G emmc/1G ethernet, on the board it says S812_M8_Rev1.1 dated 2015/05/21 & the default DTB in balbes150 latest armbian images (meson8m2-mxiii-plus.dtb) works fine but no emmc detected - I tried extracting dtb from the box android 5.1.1 but it doesnt work... I also have a mecool m8s+ pro with s905x which works out of the box with the images but unfortunately ethernet is only 100 even though its newer...

Hello @balbes150 Thank you very much for your hard work and support for breathing life into our old boxes! I just installed latest bionic from your mega drive on my SD card. My box is titled "OTT M8s+" (S812 2G/8G) and it works almost fully with the included "meson8m2-mxiii-plus.dtb" file - cpu/memory/network all work! However it seems it cant detect any emmc memory (i have android on emmc and it boots fine). Is it because the dtb file is wrong or any other cause? (i have uploaded an armbianmonitor log to http://ix.io/2nkl) also i couldnt find any nand/emmc installation files on the file system (is it because the emmc is not detected or any other reason?) Would be very grateful for any insights, Thanks again!