>
> *With newer kernels, you need to use the standard Linux remote-proc*
> * interface, rather than the legacy UIO driver.*
Not exactly. Only if you're using the *TI kernels. The *bone kernels have
uio_pruss enabled.
william@beaglebone:~$ *uname -r*
4.1.12-bone-rt-r16
william@beaglebone:~$ *sudo sh -c "echo 'pru_enable' >
/sys/devices/platform/bone_capemgr/slots"*
william@beaglebone:~$ *./ti/lsuio-0.2.0/lsuio*
uio7: name=pruss_evt7, version=1.0, events=0
map[0]: addr=0x4A300000, size=524288
map[1]: addr=0x9E880000, size=262144
uio6: name=pruss_evt6, version=1.0, events=0
map[0]: addr=0x4A300000, size=524288
map[1]: addr=0x9E880000, size=262144
uio5: name=pruss_evt5, version=1.0, events=0
map[0]: addr=0x4A300000, size=524288
map[1]: addr=0x9E880000, size=262144
uio4: name=pruss_evt4, version=1.0, events=0
map[0]: addr=0x4A300000, size=524288
map[1]: addr=0x9E880000, size=262144
uio3: name=pruss_evt3, version=1.0, events=0
map[0]: addr=0x4A300000, size=524288
map[1]: addr=0x9E880000, size=262144
uio2: name=pruss_evt2, version=1.0, events=0
map[0]: addr=0x4A300000, size=524288
map[1]: addr=0x9E880000, size=262144
uio1: name=pruss_evt1, version=1.0, events=0
map[0]: addr=0x4A300000, size=524288
map[1]: addr=0x9E880000, size=262144
uio0: name=pruss_evt0, version=1.0, events=0
map[0]: addr=0x4A300000, size=524288
map[1]: addr=0x9E880000, size=262144
The pru_enable device tree file is pretty simple too:
/dts-v1/;
/plugin/;
/ {
compatible = "ti,beaglebone", "ti,beaglebone-black";
/* identification */
part-number = "pruss_enable";
version = "00A0";
fragment@0 {
target = <&pruss>;
__overlay__ {
status = "okay";
};
};
};
Also, yes, everything works fine. I've tested various PRU git projects, and
they all seem to work fine.
On Sun, Dec 13, 2015 at 9:30 AM, Charles Steinkuehler <
[email protected]> wrote:
> On 12/13/2015 4:37 AM, Strawson wrote:
> > Sadly I'm running into the same missing uio directories now that I'm
> trying
> > to get my beaglebone code that was stable on the 3.8 kernel and Wheezy
> > image. My old compiled dtbo wouldn't load with a 4.1 kernel until it was
> > recompiled. Even with it loaded, the following modules don't load: PRU,
> > eQEP, PWM, and GPIO_buttons. I spent today hacking together workarounds
> for
> > the latter 3, but the PRU still has me stumped.
> >
> > Looking closely, the am335x-boneblack.dtb file has changed quite a bit.
> > Once decompiled I have the following entries for the PRUSS:
>
> With newer kernels, you need to use the standard Linux remote-proc
> interface, rather than the legacy UIO driver.
>
> --
> Charles Steinkuehler
> [email protected]
>
> --
> For more options, visit http://beagleboard.org/discuss
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