Olimex has instructions up on how to build for this module... https://www.olimex.com/wiki/A20-SOM
How to generate boot-able SD-card Debian Linux image for A20-OLinuXino? Follow our blog post with step by step instructions Note that Linux-Sunxi Kernel is a work-in-progress, this means you can try the current stage/sunxi-3.4 branch but if something is broken and doesn't work just revert to the git tags we give in the blog and they should work for sure Sunxi u-boot loader The linux-sunxi git page contains a lot of sources for all Olimex Allwinner boards. On Thu, Jun 26, 2014 at 4:28 AM, bruce bushby <[email protected]> wrote: > > Maxime: Hope I didn't sound sarcastic there, I know the enormous > contributions yourself and Free-Electrons have made. Sometimes the only way > for us "non-devloper" types to help out is by sending pizza or in this case > some hardware. > > Paul: You and me both ....however I did some digging this morning and found > some handy links: > https://www.power.org/documentation/epapr-version-1-1/ > > This link is a must read: > http://www.devicetree.org/Device_Tree_Usage > > > Also there is this tutorial (no idea if it's any good) > http://xillybus.com/tutorials/device-tree-zynq-1 > > > Bruce > > > > > > On Thu, Jun 26, 2014 at 1:28 AM, Paul Jones <[email protected]> wrote: >> >> Hi Bruce, >> >> >> >> I’m just guessing here, but if you can find an A20 board that is similar >> to the Olimex one you should be able to modify the DTS file so that the pin >> mapping is correct for your board. You will need the schematics to find >> which output pins on the CPU are routed to which peripheral. >> >> >> >> If you find a good source for learning DTS files I’d like to see it – They >> are still a bit of a mystery to me as well. >> >> >> >> Cheers, >> >> Paul. >> >> >> >> From: [email protected] [mailto:[email protected]] >> On Behalf Of bruce bushby >> Sent: Thursday, 26 June 2014 8:34 AM >> To: [email protected] >> Subject: Re: [linux-sunxi] Re: Booting mainline on >> a20-olinuxino/cubietruck >> >> >> >> >> >> Hi Maxime >> >> >> >> Nope... didn't think about damaging the board..... I have absolutely no >> idea what I'm doing :) ...it's just a hobby and I figured the only way to >> learn is to try.....you really don't want to watch me connecting the >> breadboard LOL >> >> >> >> I try and avoid constantly asking junior questions so tend to exhaust all >> sense before asking for help....progress is slow but I'm learning. Know any >> good books that explain how to write dts files? >> >> >> >> "....We're not ignoring it, we just don't have that hardware..." ..... >> Would you like one? >> >> >> >> >> >> >> >> >> >> >> >> >> On Wednesday, 25 June 2014 22:20:15 UTC+1, Maxime Ripard wrote: >> >> On Wed, Jun 25, 2014 at 09:37:59PM +0100, bruce bushby wrote: >> > Doesn't help....which suggests I'm doing something fundamentally wrong. >> > >> > bootargs=console=ttyS0,115200 loglevel=9 earlyprintk >> > >> > In my defconfig I have: >> > CONFIG_PRINTK_TIME=y >> > CONFIG_EARLY_PRINTK=y >> > CONFIG_DEBUG_LL=y >> > CONFIG_DEBUG_FS=y >> > >> > The board I'm using in A20-SOM-EVB ...which was only released in May and >> > is >> > not yet supported ...hence all my issues with uboot (no network) and >> > "dtb" >> > >> > Compiling uboot for "cubietruck" allows me to ping and tftp load my >> > uImage....but it gets to Starting Kernel...... and thats it. I suspect >> > thats because ttyS0 is not correctly defined in the dtb I'm using. >> >> You do realise you could physically damage your board doing so, right? >> >> Please, have an idea of what you are doing, ask for help before doing >> anything stupid, or do nothing, but don't do that kind of thing. >> >> > I'll ask if anybody has started using these boards....can't imagine the >> > community will ignore them for long. Thanks again for all your help, >> > much >> > appreciated!!!! >> >> As you've seen, there's no support for this. We're not ignoring it, we >> just don't have that hardware. >> >> So either you wait, or you learn how to do it properly and do so. But >> just doing that kind of thing isn't going to work. >> >> Maxime >> >> -- >> Maxime Ripard, Free Electrons >> Embedded Linux, Kernel and Android engineering >> http://free-electrons.com >> >> -- >> You received this message because you are subscribed to the Google Groups >> "linux-sunxi" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> >> >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "linux-sunxi" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/linux-sunxi/5mQHoyAjvJE/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> >> For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to the Google Groups > "linux-sunxi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- Jon Smirl [email protected] -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. 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