[PATCH v3 06/12] ARM: dts: imx6ul: Add Variscite storage and wireless files

[Stefano Radaelli <stefano.radaelli21@gmail.com>]

From: Stefano Radaelli <stefano.r@variscite.com>

Add shared DTSI files for eMMC, NAND, Broadcom Wi-Fi and NXP
IW61x options on VAR-SOM-6UL and DART-6UL. These options have the
same descriptions on both modules, so use one file for each.

Keep the module options independent of the carrier board so each
board DTS can select its assembled storage and wireless devices.
The IW61x SDIO host has no child node, so it needs no address or
size cell properties.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
v2->v3:
 - Share identical eMMC, NAND, Broadcom Wi-Fi and IW61x DTSI files
   between the two modules.
 - Drop address and size cells from the IW61x SDIO host, which has no
   child node.

 .../dts/nxp/imx/imx6ul-imx6ull-var-emmc.dtsi  | 32 ++++++++++
 .../dts/nxp/imx/imx6ul-imx6ull-var-nand.dtsi  | 63 +++++++++++++++++++
 .../nxp/imx/imx6ul-imx6ull-var-wifi-brcm.dtsi | 42 +++++++++++++
 .../imx/imx6ul-imx6ull-var-wifi-iw61x.dtsi    | 43 +++++++++++++
 4 files changed, 180 insertions(+)
 create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-emmc.dtsi
 create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-nand.dtsi
 create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-wifi-brcm.dtsi
 create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-wifi-iw61x.dtsi

diff --git a/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-emmc.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-emmc.dtsi
new file mode 100644
index 000000000000..26c8ca8f21a0
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-emmc.dtsi
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2026 Variscite Ltd. - https://www.variscite.com
+ */
+
+&usdhc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	bus-width = <8>;
+	no-1-8-v;
+	non-removable;
+	keep-power-in-suspend;
+	wakeup-source;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_usdhc2: usdhc2-grp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x10069
+			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x17059
+			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x17059
+			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x17059
+			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x17059
+			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x17059
+			MX6UL_PAD_NAND_DATA04__USDHC2_DATA4	0x17059
+			MX6UL_PAD_NAND_DATA05__USDHC2_DATA5	0x17059
+			MX6UL_PAD_NAND_DATA06__USDHC2_DATA6	0x17059
+			MX6UL_PAD_NAND_DATA07__USDHC2_DATA7	0x17059
+		>;
+	};
+};
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-nand.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-nand.dtsi
new file mode 100644
index 000000000000..1522b5d7e092
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-nand.dtsi
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2026 Variscite Ltd. - https://www.variscite.com
+ */
+
+&gpmi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpmi_nand_1>;
+	status = "okay";
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "spl";
+			reg = <0x00000000 0x00200000>;
+		};
+
+		partition@200000 {
+			label = "uboot";
+			reg = <0x00200000 0x00200000>;
+		};
+
+		partition@400000 {
+			label = "uboot-env";
+			reg = <0x00400000 0x00100000>;
+		};
+
+		partition@500000 {
+			label = "kernel";
+			reg = <0x00500000 0x00c00000>;
+		};
+
+		partition@1100000 {
+			label = "rootfs";
+			reg = <0x01100000 0x3ef00000>;
+		};
+	};
+};
+
+&iomuxc {
+	pinctrl_gpmi_nand_1: gpmi-nand-1-grp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_CLE__RAWNAND_CLE		0xb0b1
+			MX6UL_PAD_NAND_ALE__RAWNAND_ALE		0xb0b1
+			MX6UL_PAD_NAND_WP_B__RAWNAND_WP_B	0xb0b1
+			MX6UL_PAD_NAND_READY_B__RAWNAND_READY_B	0xb000
+			MX6UL_PAD_NAND_CE0_B__RAWNAND_CE0_B	0xb0b1
+			MX6UL_PAD_NAND_RE_B__RAWNAND_RE_B	0xb0b1
+			MX6UL_PAD_NAND_WE_B__RAWNAND_WE_B	0xb0b1
+			MX6UL_PAD_NAND_DATA00__RAWNAND_DATA00	0xb0b1
+			MX6UL_PAD_NAND_DATA01__RAWNAND_DATA01	0xb0b1
+			MX6UL_PAD_NAND_DATA02__RAWNAND_DATA02	0xb0b1
+			MX6UL_PAD_NAND_DATA03__RAWNAND_DATA03	0xb0b1
+			MX6UL_PAD_NAND_DATA04__RAWNAND_DATA04	0xb0b1
+			MX6UL_PAD_NAND_DATA05__RAWNAND_DATA05	0xb0b1
+			MX6UL_PAD_NAND_DATA06__RAWNAND_DATA06	0xb0b1
+			MX6UL_PAD_NAND_DATA07__RAWNAND_DATA07	0xb0b1
+		>;
+	};
+};
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-wifi-brcm.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-wifi-brcm.dtsi
new file mode 100644
index 000000000000..d7952233a1ee
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-wifi-brcm.dtsi
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2026 Variscite Ltd. - https://www.variscite.com
+ */
+
+/ {
+	reg_sd1_vmmc: regulator-sd1-vmmc {
+		compatible = "regulator-fixed";
+		regulator-name = "VSD_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+};
+
+&tsc {
+	status = "disabled";
+};
+
+&usdhc1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1>, <&pinctrl_32k_clk>, <&pinctrl_wifi>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>, <&pinctrl_32k_clk>, <&pinctrl_wifi>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>, <&pinctrl_32k_clk>, <&pinctrl_wifi>;
+	keep-power-in-suspend;
+	vmmc-supply = <&reg_sd1_vmmc>;
+	status = "okay";
+
+	brcmf: wifi@1 {
+		compatible = "brcm,bcm4329-fmac";
+		reg = <1>;
+	};
+};
+
+&iomuxc {
+	pinctrl_32k_clk: 32k-clk-grp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO03__OSC32K_32K_OUT	0x03029
+		>;
+	};
+};
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-wifi-iw61x.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-wifi-iw61x.dtsi
new file mode 100644
index 000000000000..d2f116bc8d70
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-wifi-iw61x.dtsi
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2026 Variscite Ltd. - https://www.variscite.com
+ */
+
+/ {
+	reg_sd1_vmmc: regulator-sd1-vmmc {
+		compatible = "regulator-fixed";
+		regulator-name = "VSD_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	iw61x_pwrseq: mmc-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		post-power-on-delay-ms = <100>;
+		power-off-delay-us = <10000>;
+		reset-gpios = <&gpio5 6 GPIO_ACTIVE_LOW>, /* WIFI_RESET */
+			      <&gpio5 2 GPIO_ACTIVE_LOW>; /* WIFI_PWR_EN */
+	};
+};
+
+&tsc {
+	status = "disabled";
+};
+
+&uart2 {
+	bluetooth_iw61x: bluetooth {
+		compatible = "nxp,88w8987-bt";
+	};
+};
+
+&usdhc1 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1>, <&pinctrl_wifi>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>, <&pinctrl_wifi>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>, <&pinctrl_wifi>;
+	keep-power-in-suspend;
+	non-removable;
+	vmmc-supply = <&reg_sd1_vmmc>;
+	mmc-pwrseq = <&iw61x_pwrseq>;
+	status = "okay";
+};
-- 
2.47.3