arm64: dts: ti: k3-am64-tqma64xxl-mbax4xxl: add muxing for GPIOs on pin headers

The pin headers X41 and X42 do not have a fixed function. All of these
pins can be assigned to PRG0, but as a default, it makes more sense to
configure them as simple GPIOs, as the MBaX4XxL is a starterkit/evaluation
mainboard.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Link: https://lore.kernel.org/r/77c30081154774ce31fc4306474a3afa52b07753.1695901360.git.matthias.schiffer@ew.tq-group.comSigned-off-by: Vignesh Raghavendra <vigneshr@ti.com>

arch/arm64/boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts

@@ -170,7 +170,8 @@ &main_gpio0 {
 
 &main_gpio1 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&main_gpio1_hog_pins>;
+	pinctrl-0 = <&main_gpio1_hog_pins>,
+		    <&main_gpio1_pru_pins>;
 	gpio-line-names =
 		"", "", "", "", /* 0-3 */
 		"", "", "", "", /* 4-7 */
@@ -545,6 +546,79 @@ AM64X_IOPAD(0x0278, PIN_INPUT, 7)
 		>;
 	};
 
+	main_gpio1_pru_pins: main-gpio1-pru-pins {
+		pinctrl-single,pins = <
+			/* (Y1) PRG0_PRU0_GPO0.GPIO1_0 */
+			AM64X_IOPAD(0x0160, PIN_INPUT, 7)
+			/* (R4) PRG0_PRU0_GPO1.GPIO1_1 */
+			AM64X_IOPAD(0x0164, PIN_INPUT, 7)
+			/* (U2) PRG0_PRU0_GPO2.GPIO1_2 */
+			AM64X_IOPAD(0x0168, PIN_INPUT, 7)
+			/* (V2) PRG0_PRU0_GPO3.GPIO1_3 */
+			AM64X_IOPAD(0x016c, PIN_INPUT, 7)
+			/* (AA2) PRG0_PRU0_GPO4.GPIO1_4 */
+			AM64X_IOPAD(0x0170, PIN_INPUT, 7)
+			/* (R3) PRG0_PRU0_GPO5.GPIO1_5 */
+			AM64X_IOPAD(0x0174, PIN_INPUT, 7)
+			/* (T3) PRG0_PRU0_GPO6.GPIO1_6 */
+			AM64X_IOPAD(0x0178, PIN_INPUT, 7)
+			/* (T1) PRG0_PRU0_GPO7.GPIO1_7 */
+			AM64X_IOPAD(0x017c, PIN_INPUT, 7)
+			/* (T2) PRG0_PRU0_GPO8.GPIO1_8 */
+			AM64X_IOPAD(0x0180, PIN_INPUT, 7)
+			/* (Y3) PRG0_PRU0_GPO11.GPIO1_11 */
+			AM64X_IOPAD(0x018c, PIN_INPUT, 7)
+			/* (AA3) PRG0_PRU0_GPO12.GPIO1_12 */
+			AM64X_IOPAD(0x0190, PIN_INPUT, 7)
+			/* (R6) PRG0_PRU0_GPO13.GPIO1_13 */
+			AM64X_IOPAD(0x0194, PIN_INPUT, 7)
+			/* (V4) PRG0_PRU0_GPO14.GPIO1_14 */
+			AM64X_IOPAD(0x0198, PIN_INPUT, 7)
+			/* (T5) PRG0_PRU0_GPO15.GPIO1_15 */
+			AM64X_IOPAD(0x019c, PIN_INPUT, 7)
+			/* (U4) PRG0_PRU0_GPO16.GPIO1_16 */
+			AM64X_IOPAD(0x01a0, PIN_INPUT, 7)
+			/* (U1) PRG0_PRU0_GPO17.GPIO1_17 */
+			AM64X_IOPAD(0x01a4, PIN_INPUT, 7)
+			/* (V1) PRG0_PRU0_GPO18.GPIO1_18 */
+			AM64X_IOPAD(0x01a8, PIN_INPUT, 7)
+			/* (W1) PRG0_PRU0_GPO19.GPIO1_19 */
+			AM64X_IOPAD(0x01ac, PIN_INPUT, 7)
+			/* (Y2) PRG0_PRU1_GPO0.GPIO1_20 */
+			AM64X_IOPAD(0x01b0, PIN_INPUT, 7)
+			/* (W2) PRG0_PRU1_GPO1.GPIO1_21 */
+			AM64X_IOPAD(0x01b4, PIN_INPUT, 7)
+			/* (V3) PRG0_PRU1_GPO2.GPIO1_22 */
+			AM64X_IOPAD(0x01b8, PIN_INPUT, 7)
+			/* (T4) PRG0_PRU1_GPO3.GPIO1_23 */
+			AM64X_IOPAD(0x01bc, PIN_INPUT, 7)
+			/* (W3) PRG0_PRU1_GPO4.GPIO1_24 */
+			AM64X_IOPAD(0x01c0, PIN_INPUT, 7)
+			/* (P4) PRG0_PRU1_GPO5.GPIO1_25 */
+			AM64X_IOPAD(0x01c4, PIN_INPUT, 7)
+			/* (R5) PRG0_PRU1_GPO6.GPIO1_26 */
+			AM64X_IOPAD(0x01c8, PIN_INPUT, 7)
+			/* (R1) PRG0_PRU1_GPO8.GPIO1_28 */
+			AM64X_IOPAD(0x01d0, PIN_INPUT, 7)
+			/* (W4) PRG0_PRU1_GPO11.GPIO1_31 */
+			AM64X_IOPAD(0x01dc, PIN_INPUT, 7)
+			/* (Y4) PRG0_PRU1_GPO12.GPIO1_32 */
+			AM64X_IOPAD(0x01e0, PIN_INPUT, 7)
+			/* (T6) PRG0_PRU1_GPO13.GPIO1_33 */
+			AM64X_IOPAD(0x01e4, PIN_INPUT, 7)
+			/* (U6) PRG0_PRU1_GPO14.GPIO1_34 */
+			AM64X_IOPAD(0x01e8, PIN_INPUT, 7)
+			/* (U5) PRG0_PRU1_GPO15.GPIO1_35 */
+			AM64X_IOPAD(0x01ec, PIN_INPUT, 7)
+			/* (AA4) PRG0_PRU1_GPO16.GPIO1_36 */
+			AM64X_IOPAD(0x01f0, PIN_INPUT, 7)
+			/* (P2) PRG0_MDIO0_MDIO.GPIO1_40 */
+			AM64X_IOPAD(0x0200, PIN_INPUT, 7)
+			/* (P3) PRG0_MDIO0_MDC.GPIO1_41 */
+			AM64X_IOPAD(0x0204, PIN_INPUT, 7)
+		>;
+	};
+
 	main_mcan0_pins: main-mcan0-pins {
 		pinctrl-single,pins = <
 			/* (B17) MCAN0_RX */