boards: nxp: frdm_mcxn236: Support i3c for NXP frdm_mcxn236 board

Support i3c for NXP frdm_mcxn236 board. Signed-off-by: Neil Chen <[email protected]>
EricNRS · Jan 7, 2025 · f861b4f · f861b4f
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commit f861b4f
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diff --git a/boards/nxp/frdm_mcxn236/board.c b/boards/nxp/frdm_mcxn236/board.c
@@ -293,6 +293,12 @@ static int frdm_mcxn236_init(void)
 
 #endif /* DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(lptmr0)) */
 
+#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(i3c1))
+	CLOCK_SetClkDiv(kCLOCK_DivI3c1FClk, DT_PROP(DT_NODELABEL(i3c1), clk_divider));
+	/* Attach PLL0 clock to I3C, 150MHz / 6 = 25MHz. */
+	CLOCK_AttachClk(kPLL0_to_I3C1FCLK);
+#endif
+
 	/* Set SystemCoreClock variable. */
 	SystemCoreClock = CLOCK_INIT_CORE_CLOCK;
 

diff --git a/boards/nxp/frdm_mcxn236/doc/index.rst b/boards/nxp/frdm_mcxn236/doc/index.rst
@@ -55,6 +55,8 @@ The FRDM-MCXN236 board configuration supports the following hardware features:
 +-----------+------------+-------------------------------------+
 | I2C       | on-chip    | i2c                                 |
 +-----------+------------+-------------------------------------+
+| I3C       | on-chip    | i3c                                 |
++-----------+------------+-------------------------------------+
 | CLOCK     | on-chip    | clock_control                       |
 +-----------+------------+-------------------------------------+
 | FLASH     | on-chip    | soc flash                           |

diff --git a/boards/nxp/frdm_mcxn236/frdm_mcxn236-pinctrl.dtsi b/boards/nxp/frdm_mcxn236/frdm_mcxn236-pinctrl.dtsi
@@ -120,6 +120,23 @@
 		};
 	};
 
+	pinmux_i3c1: pinmux_i3c1 {
+		group0 {
+			pinmux = <I3C1_SDA_PIO1_16>,
+				<I3C1_SCL_PIO1_17>;
+			slew-rate = "fast";
+			drive-strength = "low";
+			input-enable;
+			bias-pull-up;
+		};
+		group1 {
+			pinmux = <I3C1_PUR_PIO1_15>;
+			slew-rate = "fast";
+			drive-strength = "low";
+			input-enable;
+		};
+	};
+
 	pinmux_flexio_lcd: pinmux_flexio_lcd {
 		group0 {
 			pinmux = <FLEXIO0_D4_PIO0_20>,

diff --git a/boards/nxp/frdm_mcxn236/frdm_mcxn236.dts b/boards/nxp/frdm_mcxn236/frdm_mcxn236.dts
@@ -136,6 +136,10 @@ zephyr_udc0: &usb1 {
 	status = "okay";
 };
 
+&i3c1 {
+	status = "okay";
+};
+
 &flexio0 {
 	status = "okay";
 };

diff --git a/boards/nxp/frdm_mcxn236/frdm_mcxn236.dtsi b/boards/nxp/frdm_mcxn236/frdm_mcxn236.dtsi
@@ -168,3 +168,11 @@ zephyr_mipi_dbi_parallel: &flexio0_lcd {
 	pinctrl-0 = <&pinmux_flexio_lcd>;
 	pinctrl-names = "default";
 };
+
+&i3c1 {
+	pinctrl-0 = <&pinmux_i3c1>;
+	pinctrl-names = "default";
+};
+
+p3t1755dp_ard_i3c_interface: &i3c1 {};
+p3t1755dp_ard_i2c_interface: &flexcomm5_lpi2c5 {};
diff --git a/boards/nxp/frdm_mcxn236/frdm_mcxn236.yaml b/boards/nxp/frdm_mcxn236/frdm_mcxn236.yaml
@@ -22,6 +22,7 @@ supported:
   - flash
   - gpio
   - i2c
+  - i3c
   - pwm
   - regulator
   - spi
-Original file line number
+Diff line change
@@ Expand Up / @@ -22,6 +22,7 @@ supported: @@
       - flash
       - gpio
       - i2c
+      - i3c
       - pwm
       - regulator
       - spi
@@ Expand Down @@