Hello,
I have modified am57xx-evm.dts file to access PRU gpio pins. I have noticed that after modification in device tree file, I can not access the pins as a PRU GPIO. When I have read the pin mux registers using devmem2 utility, I come to know that the value of the pinmux registers are not as per my modification.
DTS file changes are as below:
&dra7_pmx_core {
pru_cape_bone_pins: pru_cape_bone_pins {
pinctrl-single,pins = <
0x374 (PIN_OUTPUT | MUX_MODE13)
0x378 (PIN_OUTPUT | MUX_MODE13)
0x37C (PIN_OUTPUT | MUX_MODE13)
>;
};
};
&epwmss0 {
status = "disabled";
};
&epwmss1{
status = "disabled";
ehrpwm1: ehrpwm@48440200{
status = "disabled";
};
};
&epwmss2{
status = "disabled";
};
&pruss2 {
pinctrl-names = "default";
pinctrl-0 = <&pru_cape_bone_pins>;
};
Please note that I have disable pwm, because the same pins are used for the PWM in current implementation. I want to know that is there any other modification require to change the pinmux value, after updating in dts file?
