Hi,
I believe I've got all the steps correct for compiling and loading a PRU
Cape example, except it's not working.
1) Add #include "am335x-boneblack-prucape.dtsi" to the bottom of
/opt/source/dtb-4.9-ti/src/arm/am335x-boneblack.dts
2) Run make clean && make
3) cd /opt/source/pru-software-support-package && make to make the demos.
4) sudo cp
/opt/source/pru-software-support-package/pru_cape/pru_fw/PRU_LED0
/lib/firmware
5) sudo ln -s /lib/firmware/PRU_LED0 /lib/firmware/am335x-pru0-fw
6) Remove and insert pru_rproc
I verify that the device blob in /boot/dtbs/xxx/ has been successfully
generated (by looking at the date)
I verify that my simlink is correct in /lib/firmware
And yet I can't get anything working.
Can someone confirm my steps above are correct?
The only things that happened and/or are a little weird are when generating
the dtb, I get the following error:
debian@beaglebone:/opt/source/dtb-4.9-ti$ make clean
CLEAN src/arm
debian@beaglebone:/opt/source/dtb-4.9-ti$ make
DTC src/arm/am437x-cm-t43.dtb
DTC src/arm/am335x-boneblack-overlay.dtb
Error: src/arm/am335x-boneblack-prucape.dtsi:47.1-10 Label or path tda19988
not found
FATAL ERROR: Syntax error parsing input tree
Makefile:133: recipe for target 'src/arm/am335x-boneblack-overlay.dtb'
failed
make[1]: *** [src/arm/am335x-boneblack-overlay.dtb] Error 1
Makefile:81: recipe for target 'all_arm' failed
make: *** [all_arm] Error 2
So I have to comment out this block in am335x-boneblack-prucape.dts
46 /* Disable all HDMI related nodes due to pin mux conflicts with PRU
Cape */
47 &tda19988 {
48 status = "disabled";
49 };
Then it compiles.
Also, it's a Beaglebone Black Wireless. I don't know if that has anything
to do with pinmuxing or anything (I suspect the wlan chip just takes the
place of the eth chip, but I have no idea).
Thanks in advance.
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