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MX8MP_IOMUXC_ECSPI2_MISO__UART4_DCE_CTS 0x140
MX8MP_IOMUXC_ECSPI2_SS0__UART4_DCE_RTS 0x140
>;
};
pinctrl_uart4_j8: uart4grp {
fsl,pins = <
MX8MP_IOMUXC_UART4_TXD__UART4_DCE_TX 0x140
MX8MP_IOMUXC_UART4_RXD__UART4_DCE_RX 0x140
>;
};
Here below an example of device tree configuration used on standard DAVE's kit for the MITO 8M Mini SOM:
From <code>imx8mm-mito8mmini.dtsdtsi</code>:
<pre>
...
&uart1 {
assigned-clocks = <&clk IMX8MM_CLK_UART1>;
assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>;
};
...
&iomuxc {
...
...
pinctrl_uart1: uart1grp {
...
</pre>
From <code>imx8mm-mito8mmini-sbcx.dts</code>:
<pre>
...
...
/ {
regulators: regulators {
...
...
/* enable ISL3330IAZ on SBCX at boot */
reg_uart1_en: uart1_en {
compatible = "regulator-fixed";
regulator-name = "uart1_en";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1_en>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio3 24 GPIO_ACTIVE_HIGH>;
enable-active-high;
regulator-always-on;
regulator-boot-on;
};
...
...
};
};
...
...
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
fsl,uart-has-rtscts;
status = "okay";
};
...
...
&iomuxc {
...
...
pinctrl_uart1_en: uart1_en {
fsl,pins = <
MX8MM_IOMUXC_SAI5_RXD3_GPIO3_IO24 0x19
>;
};
...
...
</pre>
===Accessing the peripheral in ORCA SOM===