On Saturday, August 20, 2016 at 2:42:12 PM UTC-7, William Wendin wrote: > > Background Info: > 1) We are using BeagleBone Black to power our robot, using it since > November. > 2) We use ADC, I2C1, I2C2, SPI0, 5 PWMs, and almost every available GPIO. > We have all these working using overlays, or config-pin, whichever is > needed. All is good. > 3) Up until now I have not had to alter the default kernel or uEnv.txt.* > 4) Upgraded to 4.4.9 a month or two ago. I am up-to-date with all > "apt-get update" and "apt-get upgrade". > 5) /boot/uEnv.txt is attached. > 6) root@beaglebone:/home/debian# uname -a > Linux beaglebone 4.4.9-ti-r25 #1 SMP Thu May 5 23:08:13 UTC > 2016 armv7l GNU/Linux > > The problem: Now we need SPI1 (yes, we need two SPI busses). I want to > use all the IOs listed above (see #2). > > I think the best way is to use the default universal cape that comes with > 4.4.9 (see above where I use it for all my IOs with little effort), but > enable SPI1 instead of MCASP. > > What I've tried: > * I've seen that folks say that the only way to add SPIDEV1 overlay is via > /etc/rc.local (echo 'BB-SPIDEV1' > > /sys/devices/platform/bone_capemgr/slots). However, that then wipes out > the availability of I2C, PWMs, etc. > * I've also tried adding BB-SPIDEV1 via uEnv.txt but that didn't work at > all. > > I've spent a few days trying various combination and can't find it. > Looked at source code too to try and see what is up, but didn't figure it > out yet. > > I guess my idea of the "best way" is heading down the wrong path. > > Questions: > * Do I have to make a whole new universal custom cape? > * Follow on question: Anybody have a way to turn on everything I use (see > #2 above) and SPIDEV1 too? >
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#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0 uname_r=4.4.9-ti-r25 #uuid= #dtb= ##BeagleBone Black/Green dtb's for v4.1.x (BeagleBone White just works..) ##BeagleBone Black: HDMI (Audio/Video) disabled: #dtb=am335x-boneblack-emmc-overlay.dtb ##BeagleBone Black: eMMC disabled: #dtb=am335x-boneblack-hdmi-overlay.dtb ##BeagleBone Black: HDMI Audio/eMMC disabled: #dtb=am335x-boneblack-nhdmi-overlay.dtb ##BeagleBone Black: HDMI (Audio/Video)/eMMC disabled: #dtb=am335x-boneblack-overlay.dtb ##BeagleBone Black: wl1835 #dtb=am335x-boneblack-wl1835mod.dtb ##BeagleBone Green: eMMC disabled #dtb=am335x-bonegreen-overlay.dtb cmdline=coherent_pool=1M quiet cape_universal=enable #In the event of edid real failures, uncomment this next line: #cmdline=coherent_pool=1M quiet cape_universal=enable video=HDMI-A-1:1024x768@60e ##Example v3.8.x #cape_disable=capemgr.disable_partno= #cape_enable=capemgr.enable_partno= ##Example v4.1.x #cape_disable=bone_capemgr.disable_partno= #cape_enable=bone_capemgr.enable_partno=BB-SPIDEV1 ##enable Generic eMMC Flasher: ##make sure, these tools are installed: dosfstools rsync #cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh
