boards: stm32n6570_dk: Configure i3c1

Configure i3c1 nodes on stm32n6570_dk.
Note that pins conflict with i2c1 ones, so don't enable it here and
it will have to be enabled by application

Signed-off-by: Erwan Gouriou <[email protected]>

Author: erwango

boards/st/stm32n6570_dk/arduino_r3_connector.dtsi

@@ -42,3 +42,5 @@ arduino_serial: &usart2 {};
 arduino_i2c: &i2c1 {};
 
 arduino_spi: &spi5 {};
+
+arduino_i3c: &i3c1 {};

boards/st/stm32n6570_dk/stm32n6570_dk_common.dtsi

@@ -173,6 +173,12 @@
 	status = "okay";
 };
 
+&ic10 {
+	pll-src = <4>;
+	ic-div = <32>;
+	status = "okay";
+};
+
 &ic11 {
 	pll-src = <1>;
 	ic-div = <3>;
@@ -313,6 +319,21 @@ csi_i2c: &i2c1 {
 	};
 };
 
+&i3c1 {
+	pinctrl-0 = <&i3c1_scl_ph9 &i3c1_sda_pc1>;
+	pinctrl-names = "default";
+
+	clocks = <&rcc STM32_CLOCK(APB1, 24)>,
+		 <&rcc STM32_SRC_IC10 I3C1_SEL(2)>;
+
+	i2c-scl-hz = <400000>;
+	i3c-scl-hz = <6000000>;
+	i3c-sclh = <64>;
+
+	/* Due to pin conflict with i2c1, keep it disabled  */
+	/* status = "okay"; */
+};
+
 zephyr_udc0: &usbotg_hs1 {
 	status = "okay";
 };