On Thursday 14 March 2019 11:20:08 Alan Condit wrote: > Gene, > > I just completed building Linux-4.19.25-rt16 (PREEMPT_RT) for the > Pine64 A64+. It was relatively speaking a piece of cake. They are now > using the mainline kernel for the Pine64 A64+. So it was just download > the mainline kernel sources for 4.19.25 and the Preempt_rt patches, > apply them, make the oldconfig then make menuconfig. Setup preempt_rt > and compile. The biggest problem was figuring out what commands to use > with the Makefile and the install commands. The directories that > others have used seem to have changed. So insuring that I created the > appropriate symbolic links was a little worrisome. But once I had it > all set up, it booted correctly the very first time. I ran cyclictest > and it reported an average latency of about 8uS, with a worst case of > about 63uS. > > I don’t have a Rock64 or a RockPro64 yet but my guess is that it > wouldn’t be too difficult either. My understanding is that they now > both use the mainline kernel. Once I can build a preempt_rt kernel for > the RockPro64, I’ll let you know what is involved. > > My understanding is that the Mali drivers are/were a work-in-progress. > I don’t know where they are in terms of current usability. > > Alan > > > From: Gene Heskett <ghesk...@shentel.net> > > Subject: Re: [Emc-users] Mali Drivers are Open Source Now > > Date: March 9, 2019 at 4:05:07 PM PST > > To: email@example.com > > > > On Saturday 09 March 2019 15:45:57 bari wrote: > >> http://linux-sunxi.org/Mali > >> > >> This is good news if you want a totally open source system using > >> many of the Allwinner or Rockchop multicore ARM SOC's for Linuxcnc. > >> > >> Needs no funny binary blob like the Rpi for boot ot GPU. > >> > >> -Bari > > > > Typical, too little, too late. The rock64 is probably sold out 6 > > months ago, and the rockchip-pro has replaced it. But haveing bought > > the rochchip koolaid, I'll not waste any more $ until they are > > willing to release some of the build tools. But so far, those have > > been top secret and apparently proprietary, questions ignored, so > > I've not been able to do anything with what acts like a fine & 20x > > speedier rpi3, with 4GB of ram for 10 bucks more than the rpi kit. > > So now its me with the wait and see attitude.
Seeing how it interfaces to a suitable mesa card for control i/o would be next, but ATM I'm up to by butt in getting this 6040 gantry working. I think it may be possible to use a 7i90HD + a triplet of 7i42TA's if enough gpio pins can be found to build a parport. The driver we have for the pi would need pretty heavy mods to translate that SPI interface to something usable on the rock64. The includes are a mess, and Bertho made sure it would not run on anything but the pi-3b. Keep me posted please, on the list. Thanks Alan. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emcfirstname.lastname@example.org https://lists.sourceforge.net/lists/listinfo/emc-users