On Tue, May 15, 2018 at 9:22 AM, John B <johnb...@gmail.com> wrote: > I am wondering if any progress has been made in getting Device Tree Overlays > (via uBoot) to correctly allow DMA to be used on the SPI devices. I have > not seen any recent mention of this issue. Referring to these previous > articles: > > https://groups.google.com/forum/?fromgroups#!searchin/beagleboard/spi$20dma%7Csort:date/beagleboard/YV5qDHTgtBQ/MAI1s-PUAQAJ > > and > > https://groups.google.com/forum/?fromgroups#!searchin/beagleboard/spi$20dma%7Csort:date/beagleboard/_22bW7vMkW0/rn01nfvyBQAJ > > It is suggested that should you want to use DMA with SPI, enable the SPI in > the main DTB (*sigh*). Is this still the case? If so, does it even make > sense to use DT Overlays for any other resources I am using (GPIO's for > example)? Since I'm hacking up the main DTB anyway, why not just add > everything I need there and not worry about the uBoot DT Overlays at all? > > Thanks so much for any insight anyone may have into this.
Yes this was fixed, by NOT using kernel overlays.. (race condition) Use either a full DTB or u-boot Overlays.. Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYh8shYbBgqDwjAw0WHKozS4uwkFZpi1uRn5jNTULUDcYQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
