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boards: frdm_mcxc242: Add lpuart1 support

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According to the quick start guide of the FRDM-MCXC242 board, PTE0/PTE1
should be used for lpuart1. Enable and configure it in board dts.

Signed-off-by: Alexandre Rey <alx.rey@icloud.com>
This commit is contained in:
Alexandre Rey 2025-01-30 09:54:44 +01:00 • committed by Benjamin Cabé
commit 769df0b579
3 changed files with 19 additions and 0 deletions
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4
boards/nxp/frdm_mcxc242/doc/index.rst
View file

@ -101,6 +101,10 @@ PORTB/GPIOB, PORTC/GPIOC, PORTD/GPIOD, and PORTE/GPIOE) for the FRDM-MCXC242 boa
+-------+-------------+---------------------------+ +-------+-------------+---------------------------+
| PTA2 | LPUART0_TX | UART Console | | PTA2 | LPUART0_TX | UART Console |
+-------+-------------+---------------------------+ +-------+-------------+---------------------------+
| PTE1 | LPUART1_RX | UART |
+-------+-------------+---------------------------+
| PTE0 | LPUART1_TX | UART |
+-------+-------------+---------------------------+
| PTA20 | RESET | RESET Button SW1 | | PTA20 | RESET | RESET Button SW1 |
+-------+-------------+---------------------------+ +-------+-------------+---------------------------+
| PTC1 | GPIO | User button SW2 | | PTC1 | GPIO | User button SW2 |

8
boards/nxp/frdm_mcxc242/frdm_mcxc242-pinctrl.dtsi
View file

@ -16,6 +16,14 @@
slew-rate = "slow"; slew-rate = "slow";
}; };
}; };
pinmux_lpuart1: pinmux_lpuart1 {
group0 {
pinmux = <LPUART1_RX_PTE1>,
<LPUART1_TX_PTE0>;
drive-strength = "low";
slew-rate = "slow";
};
};
pinmux_uart2: pinmux_uart2 { pinmux_uart2: pinmux_uart2 {
group0 { group0 {
pinmux = <UART2_RX_PTD2>, pinmux = <UART2_RX_PTD2>,

7
boards/nxp/frdm_mcxc242/frdm_mcxc242.dts
View file

@ -122,6 +122,13 @@
pinctrl-names = "default"; pinctrl-names = "default";
}; };
&lpuart1 {
status = "okay";
current-speed = <115200>;
pinctrl-0 = <&pinmux_lpuart1>;
pinctrl-names = "default";
};
&uart2 { &uart2 {
status = "disabled"; status = "disabled";
current-speed = <115200>; current-speed = <115200>;