On Fri, Feb 12, 2016 at 12:03 PM, Rafael Vega <[email protected]> wrote: >> >> >> > P9_41 is used by audio, so make sure you are using the >> > *-nhdmi-overlay.dtb, *-emmc-overlay.dtb or *-overlay.dtb >> > > I have dtb=am335x-boneblack-emmc-overlay.dtb in /boot/uEnv.txt so it should > be fine (?) > > >> >> ah p9_41.. so on mainline it's setup as clkout2_pin: >> >> >> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/am335x-bone-common.dtsi#n98 >> >> I left it enabled for our 4.1.x branch: >> >> >> https://github.com/beagleboard/linux/blob/4.1/arch/arm/boot/dts/am335x-bone-common.dtsi#L98-L102 >> >> It was first introduced here: >> >> >> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/arm/boot/dts/am335x-bone-common.dtsi?id=2ba3549352277514a8e4790adff77a783ee1b9e2 >> >> anyone have a hint/reason why it should/shouldn't be enabled by default.. >> > > I'm affraid I don't understand this... Does this mean that the pin is used > for something else and I can't use it as GPIO? Or that I should disable > something else before using it as GPIO?
Looking at the datasheet, it's only tied to the EMU3 on the un-populated jtag connector.. It's also shared with GPIO3_20 mcaspo_axr1... I think i've seen enough, and i'm just going to remove the default clock2 setting and re-enable P9_41 in the 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
