boards: frdm_mcxn236: Change lpuart0 pin configuration
PR https://github.com/zephyrproject-rtos/zephyr/pull/96980/
changed the pins of lpuart0 from 'FC0_P0_PIO0_16' and
'FC0_P1_PIO0_17' to 'FC0_P2_PIO0_6' and 'FC0_P3_PIO0_7'.
This is actually unnecessary because lpuart0 is not enabled
by default, so micfil applications will not be affected.
Even if lpuart0 were enabled by default, we should disable
lpuart0 at the application layer rather than directly
modifying its default configuration, as this behavior lacks
backward compatibility.
Signed-off-by: Zhaoxiang Jin <Zhaoxiang.Jin_1@nxp.com>
diff --git a/boards/nxp/frdm_mcxn236/frdm_mcxn236-pinctrl.dtsi b/boards/nxp/frdm_mcxn236/frdm_mcxn236-pinctrl.dtsi
index 5b8aaf7..9490d5a 100644
--- a/boards/nxp/frdm_mcxn236/frdm_mcxn236-pinctrl.dtsi
+++ b/boards/nxp/frdm_mcxn236/frdm_mcxn236-pinctrl.dtsi
@@ -8,8 +8,8 @@
&pinctrl {
pinmux_flexcomm0_lpuart: pinmux_flexcomm0_lpuart {
group0 {
- pinmux = <FC0_P2_PIO0_6>,
- <FC0_P3_PIO0_7>;
+ pinmux = <FC0_P0_PIO0_16>,
+ <FC0_P1_PIO0_17>;
slew-rate = "fast";
drive-strength = "low";
input-enable;
@@ -249,6 +249,10 @@
};
};
+ /* There is a pin conflict between lpuart0 and micfil.
+ * If users need to use both lpuart0 and micfil simultaneously,
+ * they need to change the pin configuration of lpuart0 by default.
+ */
pinmux_micfil: pinmux_micfil {
group0 {
pinmux = <PDM0_CLK_PIO0_16>,
