[PATCH] arm64: dts: imx943-evk-sdwifi: add a new dtso to support SDIW612 WiFi

[Sherry Sun (OSS)]

From: Sherry Sun <sherry.sun at nxp.com>

Add a new imx943-evk-sdwifi.dtso to support SDIW612 WiFi chip on
imx943-evk board, the default imx943-evk.dtb is used to support PCIE
AW693 WiFi.

Use separate dts for SDIW612 and PCIe AW693 WiFi to avoid the shared
regulator between SDIO and PCIe buses, the random probe order between
the two buses may break the PCIe initialization sequence which cause
AW693 has probability of failing to detect.

Signed-off-by: Sherry Sun <sherry.sun at nxp.com>
---
 arch/arm64/boot/dts/freescale/Makefile            |  3 +++
 .../boot/dts/freescale/imx943-evk-sdwifi.dtso     | 15 +++++++++++++++
 arch/arm64/boot/dts/freescale/imx943-evk.dts      |  2 +-
 3 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/boot/dts/freescale/imx943-evk-sdwifi.dtso

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 0a4dabac5de4..657e0915ca69 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -516,6 +516,9 @@ imx943-evk-pcie0-ep-dtbs += imx943-evk.dtb imx-pcie0-ep.dtbo
 imx943-evk-pcie1-ep-dtbs += imx943-evk.dtb imx-pcie1-ep.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx943-evk-pcie0-ep.dtb imx943-evk-pcie1-ep.dtb
 
+imx943-evk-sdwifi-dtbs := imx943-evk.dtb imx943-evk-sdwifi.dtbo
+dtb-$(CONFIG_ARCH_MXC) += imx943-evk-sdwifi.dtb
+
 dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-ab2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-frdm.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx943-evk-sdwifi.dtso b/arch/arm64/boot/dts/freescale/imx943-evk-sdwifi.dtso
new file mode 100644
index 000000000000..59cc1c27b9b9
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx943-evk-sdwifi.dtso
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2026 NXP
+ */
+
+/dts-v1/;
+/plugin/;
+
+&pcie0 {
+	status = "disabled";
+};
+
+&usdhc3 {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/freescale/imx943-evk.dts b/arch/arm64/boot/dts/freescale/imx943-evk.dts
index fe4fc512d95d..1346a6a56883 100644
--- a/arch/arm64/boot/dts/freescale/imx943-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx943-evk.dts
@@ -1153,7 +1153,7 @@ &usdhc3 {
 	keep-power-in-suspend;
 	non-removable;
 	wakeup-source;
-	status = "okay";
+	status = "disabled";
 };
 
 &wdog3 {

base-commit: 5f9e9f83aee0fa8f2124c6f192505de2cdf7c5dc
-- 
2.37.1