P2.32 pruin pulldown - custom overlay - 6/24/20

/* custom overlay
 * cd to /opt/source/bb.org-overlays
 * create file -> $ vi /src/arm/custom-00A0.dts
 * Copy and paste the content there
 * make it -> $ make src/arm/custom-00A0.dtbo
 * now install it -> $ cp src/arm/custom-00A0.dtbo /lib/firmware/
 * update /bot/uEnv.txt, add this to any addr*
 * reboot your board
*/
/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/am33xx.h>
#include <dt-bindings/interrupt-controller/irq.h>

/*
 * Helper to show loaded overlays under: /proc/device-tree/chosen/overlays/
 */
&{/chosen} {
	overlays {
		custom-00A0 = __TIMESTAMP__;
	};
};

/*
 * Free up the pins used by the cape from the pinmux helpers.
 */

 &ocp {
    P2_32_pinmux { status = "disabled"; };
 };

&am33xx_pinmux {
    custom_pins: pinmux_custom_pins {
        pinctrl-single,pins = <
            AM33XX_IOPAD(0x0998, PIN_INPUT_PULLDOWN | MUX_MODE6) /* mcasp0_axr0.pru0_in2 */
        >;
    };
};