No matter what I do, under 4.1 I can't successfully call prussdrv_open(). I get:
prussdrv_open open PRU_EVTOUT_0 failed -1: No such file or directory
dmesg has some errors around loading firmware on the PRUs, although I don't
know why a stock boot wants to:
# dmesg | grep -i pru
[ 13.079959] pruss-rproc 4a300000.pruss: 8 PRU interrupts parsed
[ 13.080053] pruss-rproc 4a300000.pruss: memory dram0: pa 0x4a300000 size
0x2000 va e099c000
[ 13.080091] pruss-rproc 4a300000.pruss: memory dram1: pa 0x4a302000 size
0x2000 va e09a0000
[ 13.080112] pruss-rproc 4a300000.pruss: memory shrdram2: pa 0x4a310000 size
0x3000 va e09a4000
[ 13.080132] pruss-rproc 4a300000.pruss: memory intc: pa 0x4a320000 size
0x2000 va e09a8000
[ 13.080151] pruss-rproc 4a300000.pruss: memory cfg: pa 0x4a326000 size
0x2000 va e09ac000
[ 13.080552] pruss-rproc 4a300000.pruss: creating platform devices for PRU
cores
[ 13.114942] pru-rproc 4a334000.pru0: memory iram: pa 0x4a334000 size
0x2000 va e09b0000
[ 13.114988] pru-rproc 4a334000.pru0: memory control: pa 0x4a322000 size
0x400 va e0876000
[ 13.115026] pru-rproc 4a334000.pru0: memory debug: pa 0x4a322400 size
0x100 va e099a400
[ 13.115255] remoteproc1: 4a334000.pru0 is available
[ 13.116745] remoteproc1: Direct firmware load for am335x-pru0-fw failed
with error -2
[ 13.116772] remoteproc1: failed to load am335x-pru0-fw
[ 13.128688] pru-rproc 4a334000.pru0: booting the PRU core manually
[ 13.128725] remoteproc1: powering up 4a334000.pru0
[ 13.128806] remoteproc1: Direct firmware load for am335x-pru0-fw failed
with error -2
[ 13.133909] pru-rproc 4a334000.pru0: rproc_boot failed
[ 13.238678] remoteproc1: releasing 4a334000.pru0
[ 13.238894] pru-rproc: probe of 4a334000.pru0 failed with error -2
[ 13.239081] pru-rproc 4a338000.pru1: memory iram: pa 0x4a338000 size
0x2000 va e09b8000
[ 13.239117] pru-rproc 4a338000.pru1: memory control: pa 0x4a324000 size
0x400 va e09bc000
[ 13.239138] pru-rproc 4a338000.pru1: memory debug: pa 0x4a324400 size
0x100 va e09be400
[ 13.239361] remoteproc1: 4a338000.pru1 is available
[ 13.239689] remoteproc1: Direct firmware load for am335x-pru1-fw failed
with error -2
[ 13.239711] remoteproc1: failed to load am335x-pru1-fw
[ 13.252800] pru-rproc 4a338000.pru1: booting the PRU core manually
[ 13.252834] remoteproc1: powering up 4a338000.pru1
[ 13.252911] remoteproc1: Direct firmware load for am335x-pru1-fw failed
with error -2
[ 13.258014] pru-rproc 4a338000.pru1: rproc_boot failed
[ 13.330118] remoteproc1: releasing 4a338000.pru1
[ 13.330314] pru-rproc: probe of 4a338000.pru1 failed with error -2
[ 333.090396] bone_capemgr bone_capemgr: part_number 'BB-ENABLE-PRU', version
'N/A'
[ 333.090472] bone_capemgr bone_capemgr: slot #5: 'Override Board
Name,00A0,Override Manuf,BB-ENABLE-PRU'
[ 333.092247] bone_capemgr bone_capemgr: slot #5: dtbo
'BB-ENABLE-PRU-00A0.dtbo' loaded; overlay id #0
The last bit is my attempt to enable the PRUs via overlay. Here's the overlay I
loaded:
/dts-v1/;
/plugin/;
/ {
compatible = "ti,beaglebone", "ti,beaglebone-black";
/* identification */
part-number = "BB-ENABLE-PRU";
/* version */
version = "00A0";
fragment@1 { // Enable the PRUSS
target = <&pruss>;
__overlay__ {
status = "okay";
};
};
};
I don't know if an overlay is necessary to enable the PRUs, but this one
doesn't seem to be it.
I'd sure appreciate some help with this. I've gone down so many google rabbit
holes this weekend trying to figure it out, and I'm still no closer.
Thanks!
--
Rick Mann
[email protected]
--
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.
