GPIO IN MODE 6 IS not working for pin no. p8_11

P8_11.p

.origin 0
.entrypoint start

#define GPIO0 0x44E07000
#define GPIO1 0x4804C000
#define GPIO2 0x481AC000
#define GPIO3 0x481AE000

#define GPIO_OE 0x134
#define GPIO_DATAIN 0x138
#define GPIO_CLEARDATAOUT 0x190
#define GPIO_SETDATAOUT 0x194

#define LED_PIN_BIT 13
#define CPRUCFG  c4

#define INS_PER_MS    500 * 1000
#define ON_DURATION   250 * INS_PER_MS
#define OFF_DURATION  250 * INS_PER_MS

start:
    lbco r0, CPRUCFG, 4, 4   // read SYSCFG
    clr  r0.t4               // clear SYSCFG[STANDBY_INIT]
    sbco r0, CPRUCFG, 4, 4   // enable OCP master port;

	 MOV r0, ON_DURATION
	
DELAY_ON:SUB r0, r0, 1
	 QBNE DELAY_ON, r0, 0
	
		// try EGPIO
		SET r30, r30, 15
	  MOV r0, ON_DURATION
	    	
DELAY_OFF:SUB r0, r0, 1
	  QBNE DELAY_OFF, r0, 0
	
		// try EGPIO
		CLR r30, r30, 15
	  MOV r0, ON_DURATION
QBA DELAY_ON

PRU-GPIO-EXAMPLE2.dts

/dts-v1/;
/plugin/;

/ {
compatible = "ti,beaglebone", "ti,beaglebone-black", "ti,beaglebone-green";

    // identification
    part-number = "PRU-GPIO-EXAMPLE2";
    version = "00A0";

    // resources
    exclusive-use =
        	"P8.11",
		"P8.12",
		"P8.13",
		"P8.15",
                "P8.16",
		"P8.20",
		"P8.21",
		"pru0",
		"P9.12",
		"P9.24",
        	"pru1";


    // pinmux
    fragment@0 {
        target = <&am33xx_pinmux>;
        __overlay__ {
	    pinctrl_test: PRU-GPIO-EXAMPLE2-pins{
		pinctrl-single,pins= <
			0x034 0x36 /* p8_11 45  gpio1_13 in pu mode6 */
			0x030 0x26 /* p8_12 44  gpio1_12 in pd mode6 */
			0x024 0x07 /* p8_13 23  gpio0_23 op pd mode7 */
			0x03c 0x07 /* p8_15 47  gpio1_15 op pd mode7 */
			0x038 0x07 /* p8_16 46  gpio1_14 op pd mode7 */
			0x084 0x37 /* p8_20 63  gpio1_31 in pd mode7 */
			0x080 0x37 /* p8_21 62  gpio1_30 in pd mode7 */			
			0x078 0x0f /* p9_12 60  gpio1_13 op none mode7 */
             	        0x184 0x27 /* p9_24 15  gpio1_28 in pd mode7 */
			/* OUTPUT  GPIO(mode7) 0x07 pulldown, 0x17 pullup, 0x?f no pullup/down */
			/* INPUT   GPIO(mode7) 0x27 pulldown, 0x37 pullup, 0x?f no pullup/down */
		>;
            };

        };
    };


    // PRU
    fragment@1 {
        target = <&ocp>;
        __overlay__ {
		test_helper: helper {
			compatible = "bone-pinmux-helper";
			status = "okay";
			pinctrl-names = "default", "gpio";
			pinctrl-0 = <&pinctrl_test>;
		};
        };
    };

    fragment@2 {
        target = <&pruss>;
        __overlay__ {
            status = "okay";
        };
    };

};