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imx6

差别

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+======设备树修改======
+===== UART =====
+  * &iomuxc  -->  DTE模式
+<code>
+		pinctrl_uart2: uart2grp {
+			fsl,pins = <
+				MX6UL_PAD_UART2_TX_DATA__UART2_DTE_RX	0x1b0b1
+				MX6UL_PAD_UART2_RX_DATA__UART2_DTE_TX	0x1b0b1
+			>;
+		};
+		pinctrl_uart4: uart4grp {
+			fsl,pins = <
+				MX6UL_PAD_UART4_TX_DATA__UART4_DTE_RX	0x1b0b1
+				MX6UL_PAD_UART4_RX_DATA__UART4_DTE_TX 	0x1b0b1
+			>;
+		};
+		pinctrl_uart5: uart5grp {
+			fsl,pins = <
+				MX6UL_PAD_UART5_TX_DATA__UART5_DTE_RX   0x1b0b1
+				MX6UL_PAD_UART5_RX_DATA__UART5_DTE_TX   0x1b0b1
+			>;
+		};
+</code>
+  * &uart
+<code>
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	fsl,dte-mode;
+	status = "okay";
+};
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	fsl,dte-mode;
+	status = "okay";
+};
+&uart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart5>;
+	fsl,dte-mode;
+	status = "okay";
+};
+</code>
+===== LED =====
+  * &iomuxc
+<code>
+		pinctrl_leds: ledsgrp {
+			fsl,pins = <
+				MX6UL_PAD_CSI_VSYNC__GPIO4_IO19 	0x1b0b1
+				MX6UL_PAD_CSI_HSYNC__GPIO4_IO20 	0x1b0b1
+				MX6UL_PAD_CSI_DATA00__GPIO4_IO21 	0x1b0b1
+				MX6UL_PAD_CSI_DATA01__GPIO4_IO22 	0x1b0b1
+				MX6UL_PAD_CSI_DATA02__GPIO4_IO23 	0x1b0b1
+				MX6UL_PAD_CSI_DATA03__GPIO4_IO24 	0x1b0b1
+				MX6UL_PAD_CSI_DATA04__GPIO4_IO25 	0x1b0b1
+				MX6UL_PAD_CSI_DATA05__GPIO4_IO26 	0x1b0b1
+				MX6UL_PAD_CSI_DATA06__GPIO4_IO27 	0x1b0b1
+				MX6UL_PAD_CSI_DATA07__GPIO4_IO28 	0x1b0b1
+			>;
+		};
+</code>
+  * &led
+<code>
+/*---------------------------------------------------------------------------------------------------------------------
+	led
+-----------------------------------------------------------------------------------------------------------------------*/
+/ {
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_leds>;
+		led@0 {
+			label = "sysled:color0";
+			gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+		};
+		led@1 {
+			label = "sysled:color1";
+			gpios = <&gpio4 20 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+		};
+		led@2 {
+			label = "rs485_0:rx";
+			gpios = <&gpio4 26 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "none";
+		};
+		led@3 {
+			label = "rs485_0:tx";
+			gpios = <&gpio4 21 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "none";
+		};
+		led@4 {
+			label = "rs485_1:rx";
+			gpios = <&gpio4 27 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "none";
+		};
+		led@5 {
+			label = "rs485_1:tx";
+			gpios = <&gpio4 25 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "none";
+		};
+		led@6 {
+			label = "rs485_2:rx";
+			gpios = <&gpio4 24 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "none";
+		};
+		led@7 {
+			label = "rs485_2:tx";
+			gpios = <&gpio4 19 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "none";
+		};
+		led@8 {
+			label = "rs485_3:rx";
+			gpios = <&gpio4 28 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "none";
+		};
+		led@9 {
+			label = "rs485_3:tx";
+			gpios = <&gpio4 23 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "none";
+		};
+	};
+};
+</code>

imx6.txt · 最后更改: 2019/12/01 10:57 由 duzhaofeng