[PATCH v3 05/14] arm64: dts: imx8mp-var-som-symphony: enable header UARTs

From: Stefano Radaelli

Date: Wed Jun 03 2026 - 10:58:38 EST


From: Stefano Radaelli <stefano.r@xxxxxxxxxxxxx>

Enable UART1 and UART4 on the Symphony carrier board and add the
corresponding pinctrl configurations.

Signed-off-by: Stefano Radaelli <stefano.r@xxxxxxxxxxxxx>
---
v2->v3:
-

v1->v2:
-

.../dts/freescale/imx8mp-var-som-symphony.dts | 28 +++++++++++++++++++
1 file changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts
index b15ca44b9a92..9500c9bf0f42 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts
@@ -154,6 +154,13 @@ &snvs_rtc {
status = "disabled";
};

+/* Header UART */
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ status = "okay";
+};
+
/* Console */
&uart2 {
pinctrl-names = "default";
@@ -161,6 +168,13 @@ &uart2 {
status = "okay";
};

+/* Header UART */
+&uart4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart4>;
+ status = "okay";
+};
+
&usb3_0 {
status = "okay";
};
@@ -261,6 +275,13 @@ MX8MP_IOMUXC_GPIO1_IO05__GPIO1_IO05 0x10
>;
};

+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_UART1_RXD__UART1_DCE_RX 0x40
+ MX8MP_IOMUXC_UART1_TXD__UART1_DCE_TX 0x40
+ >;
+ };
+
pinctrl_uart2: uart2grp {
fsl,pins = <
MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX 0x40
@@ -268,6 +289,13 @@ MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX 0x40
>;
};

+ pinctrl_uart4: uart4grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_UART4_RXD__UART4_DCE_RX 0x40
+ MX8MP_IOMUXC_UART4_TXD__UART4_DCE_TX 0x40
+ >;
+ };
+
pinctrl_usdhc2_gpio: usdhc2-gpiogrp {
fsl,pins = <
MX8MP_IOMUXC_GPIO1_IO14__GPIO1_IO14 0x1c4
--
2.47.3