That *seems* to have fixed it. Will need to run a test to be sure. It does
allow me to configure the audio pin as pruout, and I do see gpio entries
and the uio events in sysfs.
I was wondering if it was the old U-Boot - I presume the old one doesn't
understand uboot overlays??
(was I correct to remove "cape_universal=enable" from the kernel command
line entry in uEnv.txt (or does it not matter once uboot overlays are
enabled?)
The syntax of the directives I added to uEnv.txt look (to me) like they are
hard-coded into u-boot -- is that correct? That is, rather than generic
directives that look like:
enable_uboot_overlay=<some overlay found in /lib/firmware>
enable_uboot_overlay=<some other overlay found in /lib/firmware>
disable_uboot_overlay=<yet another...>
we now have:
enable_uboot_overlays=1 # OK, that seems generic... tell
u-boot to handle overlays
disable_uboot_overlay_audio=1 . # "audio" is hardcoded in the directive
itself
uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo # u-boot
even knows about prus?
enable_uboot_cape_universal=1
# ... and cape_universal?
Thank you for the response.
On Friday, March 23, 2018 at 3:44:56 PM UTC-7, ags wrote:
>
> I gave up trying to figure out how to get config-pins, overlays, uboot,
> etc all in-sync to allow access to all the available pru pins, so I
> followed previous instructions to update.
>
> What I did:
>
> debian@BBBWl:~$ cd /opt/scripts/tools
> debian@BBBWl:~$ sudo ./update_kernel.sh
>
> edited /boot/uEnv.txt to include:
>
> enable_uboot_overlays=1
>
> disable_uboot_overlay_audio=1
>
> uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo
>
> enable_uboot_cape_universal=1
>
>
> and changed this:
>
>
> cmdline=coherent_pool=1M quiet cape_universal=enable
>
>
> to this:
>
>
> cmdline=coherent_pool=1M quiet
>
>
> rebooted and...
>
>
> Last login: Fri Mar 23 22:01:29 2018 from 10.8.0.6
>
> debian@BBBWl:~$ uname -r
>
> 4.4.113-ti-r148
>
> debian@BBBWl:~$ config-pin -l p9.25
>
> default gpio gpio_pu gpio_pd qep pruout pruin
>
> debian@BBBWl:~$ config-pin p9.25 pruout
>
> P9_25 pinmux file not found!
>
> cape-universala overlay not found
>
> run "config-pin overlay cape-universala" to load the cape
>
> checked to see if the bb-cape-overlays had been updated and saw a newer
> version so installed that:
>
> debian@BBBWl:~$ apt show bb-cape-overlays
>
> Package: bb-cape-overlays
>
> Version: 4.4.20180322.0-0rcnee0~jessie+20180322
>
> Maintainer: Robert Nelson <robertcnel...@gmail.com>
>
> Installed-Size: 2,289 kB
>
> Priority: extra
>
> Section: misc
>
> Download-Size: 66.7 kB
>
> APT-Sources: http://repos.rcn-ee.com/debian/ jessie/main armhf Packages
>
> Description: Device tree overlays for Beaglebone.
>
> Device tree overlays for Beaglebone /lib/firmware/
>
>
> rebooted and same problem.
>
> I then looked to see if the uio_pruss driver had been installed...
>
>
> debian@BBBWl:/opt/scripts/tools$ ls /sys/class/uio
>
> debian@BBBWl:/opt/scripts/tools$
>
>
> Bad.
>
>
> debian@BBBWl:/opt/scripts/tools$ ls /sys/class/gpio
>
> export *gpio12* *gpio13* *gpiochip0* *gpiochip32* *gpiochip64*
> *gpiochip96* unexport
>
>
> Worse.
>
>
> So now I have no uio_pruss driver, and just two gpio pins.
>
> Info:
>
>
> debian@BBBWl:/opt/scripts/tools$ sudo ./version.sh
>
> git:/opt/scripts/:[9d965a5f40ae00774c81164f87a450a678ab79f6]
>
> eeprom:[A335BNLTBWA51650BBWG0378]
>
> model:[TI_AM335x_BeagleBone_Black_Wireless]
>
> dogtag:[BeagleBoard.org Debian Image 2016-11-06]
>
> bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot
> 2016.11-rc3-00002-g73df7f]:[location: dd MBR]
>
> kernel:[4.4.113-ti-r148]
>
> nodejs:[v6.12.2]
>
> uboot_overlay_options:[enable_uboot_overlays=1]
>
> uboot_overlay_options:[disable_uboot_overlay_audio=1]
>
>
> uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo]
>
> uboot_overlay_options:[enable_uboot_cape_universal=1]
>
> pkg:[bb-cape-overlays]:[4.4.20180322.0-0rcnee0~jessie+20180322]
>
> pkg:[bb-wl18xx-firmware]:[1.20161020-0rcnee1~bpo80+20161020+1]
>
> WARNING:pkg:[firmware-ti-connectivity]:[NOT_INSTALLED]
>
> groups:[debian : debian adm kmem dialout cdrom floppy audio dip video
> plugdev users systemd-journal netdev i2c admin spi tisdk weston-launch
> xenomai]
>
> cmdline:[console=ttyO0,115200n8
> root=UUID=ac4731db-c4db-463f-9129-07e6746b98ba ro rootfstype=ext4 rootwait
> coherent_pool=1M quiet]
>
> dmesg | grep pinctrl-single
>
> [ 1.179799] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800
> size 568
>
> dmesg | grep gpio-of-helper
>
> [ 1.180937] gpio-of-helper ocp:cape-universal: Allocated GPIO id=0
>
> [ 1.181098] gpio-of-helper ocp:cape-universal: Allocated GPIO id=1
>
> [ 1.181110] gpio-of-helper ocp:cape-universal: ready
>
> END
>
>
> Help please...
>
>
>
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