修改GPIO导出默认初始值

hc

2024-10-16 50a212ec906f7524620675f0c57357691c26c81f

 kernel/arch/arm/boot/dts/at91-ariettag25.dts
..
..
@@ -6,19 +6,16 @@
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  */
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 /dts-v1/;
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 #include "at91sam9g25.dtsi"
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+
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 / {
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 	model = "Acme Systems Arietta G25";
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 	compatible = "acme,ariettag25", "atmel,at91sam9x5", "atmel,at91sam9";
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-
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-	aliases {
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-		serial0 = &dbgu;
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-	};
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 	chosen {
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 		stdout-path = "serial0:115200n8";
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 	};
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-	memory {
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+	memory@20000000 {
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 		reg = <0x20000000 0x8000000>;
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 	};
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..
..
@@ -32,57 +29,9 @@
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 		};
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 	};
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-	ahb {
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-		apb {
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-			mmc0: mmc@f0008000 {
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-				pinctrl-0 = <
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-				  &pinctrl_mmc0_slot0_clk_cmd_dat0
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-				  &pinctrl_mmc0_slot0_dat1_3>;
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-				status = "okay";
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-
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-				slot@0 {
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-					reg = <0>;
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-					bus-width = <4>;
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-				};
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-			};
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-
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-			tcb0: timer@f8008000 {
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-				timer@0 {
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-					compatible = "atmel,tcb-timer";
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-					reg = <0>;
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-				};
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-
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-				timer@1 {
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-					compatible = "atmel,tcb-timer";
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-					reg = <1>;
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-				};
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-			};
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-
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-			usb2: gadget@f803c000 {
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-				status = "okay";
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-			};
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-
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-			dbgu: serial@fffff200 {
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-				status = "okay";
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-			};
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-
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-			rtc@fffffeb0 {
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-				status = "okay";
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-			};
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-		};
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-
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-		usb0: ohci@600000 {
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-			status = "okay";
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-			num-ports = <3>;
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-		};
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-
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-		usb1: ehci@700000 {
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-			status = "okay";
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-		};
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-	};
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-
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 	leds {
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 		compatible = "gpio-leds";
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+
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 		arietta_led {
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 			label = "arietta_led";
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 			gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
..
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@@ -90,3 +39,49 @@
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 		};
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 	};
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 };
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+
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+&dbgu {
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+	status = "okay";
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+};
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+
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+&mmc0 {
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+	pinctrl-0 = <
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+		&pinctrl_mmc0_slot0_clk_cmd_dat0
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+		&pinctrl_mmc0_slot0_dat1_3>;
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+	pinctrl-names = "default";
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+	status = "okay";
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+
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+	slot@0 {
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+		reg = <0>;
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+		bus-width = <4>;
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+	};
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+};
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+
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+&rtc {
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+	status = "okay";
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+};
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+
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+&tcb0 {
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+	timer@0 {
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+		compatible = "atmel,tcb-timer";
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+		reg = <0>;
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+	};
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+
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+	timer@1 {
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+		compatible = "atmel,tcb-timer";
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+		reg = <1>;
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+	};
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+};
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+
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+&usb0 {
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+	num-ports = <3>;
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+	status = "okay";
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+};
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+
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+&usb1 {
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+	status = "okay";
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+};
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+
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+&usb2 {
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+	status = "okay";
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+};