hmm are there no PWM overlays already in that git ? On Sun, Aug 23, 2015 at 3:37 PM, M@ <[email protected]> wrote:
> Yes, and 1.4.1 respectively: > > [root@stompyCentralControl sys]# zcat /proc/config.gz | grep CONFIG_BONE > CONFIG_BONE_CAPEMGR=y > [root@stompyCentralControl sys]# dtc -v > Version: DTC 1.4.1 > [root@stompyCentralControl sys]# > > On Sun, Aug 23, 2015 at 6:33 PM, William Hermans <[email protected]> > wrote: > >> Have you read this ? >> >> https://github.com/beagleboard/bb.org-overlays >> >> What version dtc are you using ? it must be 1.4.1 or greater. >> >> On Sun, Aug 23, 2015 at 2:06 PM, M@ Dunlap <[email protected]> >> wrote: >> >>> Hello all, I'm trying with increasing desperation to get my BBB (that is >>> running 4.1.4-1-ARCH) to use a PWM. It used to work, but then I updated >>> from 3.8 to 4.1 and now it's back to SNAFU. I'm trying to get device trees >>> to work, but I really, really don't get device tree overlays, I've read all >>> the guides/docs and am still clueless. >>> >>> My current best guess is to first load >>> https://github.com/ProjectHexapod/bbbStuff/blob/master/overlays/am33xx_pwm-00A0.dts >>> to activate pwm, and then load >>> https://github.com/ProjectHexapod/bbbStuff/blob/master/overlays/thigh_bone-00A0.dts >>> to configure all the pins. Unfortunately when I do that and then try to >>> echo something into pwmFolder/duty it tells me that the permission is >>> denied. I also don't understand why those need to be separate device tree >>> overlays. >>> >>> In attempting to isolate the problem I also came up with the following, >>> but it gives the same permission denied errors. I'm out of ideas, please >>> send help! Also, even if you don't know how to solve the problem, I'd also >>> be interested to hear if there are style or high-level problems with my >>> approach.... >>> >>> /dts-v1/; >>> /plugin/; >>> >>> / { >>> compatible = "ti,beaglebone", "ti,beaglebone-black"; >>> >>> /* identification */ >>> part-number = "test1"; >>> version = "00A0"; >>> exclusive-use = >>> /* the pin header uses */ >>> "P8.13", >>> /* the hardware IP uses */ >>> "ehrpwm2B"; >>> >>> fragment@0 { >>> target = <&epwmss0>; >>> __overlay__ { >>> status = "okay"; >>> }; >>> }; >>> >>> fragment@1 { >>> target = <&ehrpwm0>; >>> __overlay__ { >>> status = "okay"; >>> }; >>> }; >>> >>> fragment@2 { >>> target = <&epwmss1>; >>> __overlay__ { >>> status = "okay"; >>> }; >>> }; >>> >>> fragment@3 { >>> target = <&ehrpwm1>; >>> __overlay__ { >>> status = "okay"; >>> }; >>> }; >>> >>> fragment@4 { >>> target = <&epwmss2>; >>> __overlay__ { >>> status = "okay"; >>> }; >>> }; >>> >>> fragment@5 { >>> target = <&ehrpwm2>; >>> __overlay__ { >>> status = "okay"; >>> }; >>> }; >>> >>> fragment@6 { >>> target = <&am33xx_pinmux>; >>> __overlay__ { >>> bs_pwm_P8_13_0x14: pinmux_bs_pwm_P8_13_0x14 { >>> pinctrl-single,pins = <0x024 0x14>; >>> }; >>> }; >>> }; >>> >>> fragment@7 { >>> target = <&ocp>; >>> __overlay__ { >>> bs_pwm_test_P8_13 { >>> compatible = "pwm_test"; >>> pwms = <&ehrpwm2 1 500000 1>; >>> pwm-names = "PWM_P8_13"; >>> >>> pinctrl-names = "default"; >>> pinctrl-0 = <&bs_pwm_P8_13_0x14>; >>> >>> enabled = <1>; >>> duty = <0>; >>> status = "okay"; >>> }; >>> }; >>> }; >>> }; >>> >>> -- >>> 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. >>> >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/hsyqGGqAQsI/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. >> > > -- > 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. > -- 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.
