Wont this also cause it to load the sound driver and possibly interfere with its operation? I need exclusive access to the device.
On Thursday, January 21, 2016 at 5:00:45 PM UTC-5, RobertCNelson wrote: > > On Thu, Jan 21, 2016 at 3:46 PM, <[email protected] <javascript:>> > wrote: > > Thanks for the help everyone, I think I know where to go from here now. > > John, I am fairly certain ioremap works with physical addresses. Its > > declaration is ioremap(phys_addr_t phys_addr, size_t size). I did try > > 0xFD038000 anyway and it gave the wrong result for the revision number > of > > the McASP. > > > > Charles, after some additional googling, I think you are correct. > Because I > > have the McASP disabled in the device tree, it is turned off and cannot > be > > accessed. I'm not exactly sure how to turn the McASP/clocks on, but will > > start looking in the TRM. > > to turn it on just do: > > > https://github.com/RobertCNelson/dtb-rebuilder/blob/4.1-ti/src/arm/am33xx-overlay-edma-fix.dtsi#L31-L33 > > > in your custom *.dts > > 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
