[PATCH v2 05/11] ARM: dts: imx6ul: Add Variscite storage and wireless files
Stefano Radaelli
stefano.radaelli21 at gmail.com
Sat Sep 26 04:05:33 PDT 2026
From: Stefano Radaelli <stefano.r at variscite.com>
Add reusable DTSI files for eMMC, NAND, Broadcom Wi-Fi and NXP IW61x
options on VAR-SOM-6UL and DART-6UL modules.
Keep the module options independent of the carrier board so each
board DTS can select its assembled storage and wireless devices.
Signed-off-by: Stefano Radaelli <stefano.r at variscite.com>
---
v1->v2:
-
.../nxp/imx/imx6ul-imx6ull-var-dart-emmc.dtsi | 32 ++++++++++
.../nxp/imx/imx6ul-imx6ull-var-dart-nand.dtsi | 63 +++++++++++++++++++
.../imx6ul-imx6ull-var-dart-wifi-brcm.dtsi | 42 +++++++++++++
.../imx6ul-imx6ull-var-dart-wifi-iw61x.dtsi | 45 +++++++++++++
.../nxp/imx/imx6ul-imx6ull-var-som-emmc.dtsi | 32 ++++++++++
.../nxp/imx/imx6ul-imx6ull-var-som-nand.dtsi | 63 +++++++++++++++++++
.../imx/imx6ul-imx6ull-var-som-wifi-brcm.dtsi | 42 +++++++++++++
.../imx6ul-imx6ull-var-som-wifi-iw61x.dtsi | 45 +++++++++++++
8 files changed, 364 insertions(+)
create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-emmc.dtsi
create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-nand.dtsi
create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-wifi-brcm.dtsi
create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-wifi-iw61x.dtsi
create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-emmc.dtsi
create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-nand.dtsi
create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-wifi-brcm.dtsi
create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-wifi-iw61x.dtsi
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-emmc.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-emmc.dtsi
new file mode 100644
index 000000000000..26c8ca8f21a0
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-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-dart-nand.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-nand.dtsi
new file mode 100644
index 000000000000..1522b5d7e092
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-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 at 0 {
+ label = "spl";
+ reg = <0x00000000 0x00200000>;
+ };
+
+ partition at 200000 {
+ label = "uboot";
+ reg = <0x00200000 0x00200000>;
+ };
+
+ partition at 400000 {
+ label = "uboot-env";
+ reg = <0x00400000 0x00100000>;
+ };
+
+ partition at 500000 {
+ label = "kernel";
+ reg = <0x00500000 0x00c00000>;
+ };
+
+ partition at 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-dart-wifi-brcm.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-wifi-brcm.dtsi
new file mode 100644
index 000000000000..d7952233a1ee
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-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 = <®_sd1_vmmc>;
+ status = "okay";
+
+ brcmf: wifi at 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-dart-wifi-iw61x.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-wifi-iw61x.dtsi
new file mode 100644
index 000000000000..4d47cea982ec
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-dart-wifi-iw61x.dtsi
@@ -0,0 +1,45 @@
+// 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 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ 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 = <®_sd1_vmmc>;
+ mmc-pwrseq = <&iw61x_pwrseq>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-emmc.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-emmc.dtsi
new file mode 100644
index 000000000000..26c8ca8f21a0
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-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-som-nand.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-nand.dtsi
new file mode 100644
index 000000000000..1522b5d7e092
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-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 at 0 {
+ label = "spl";
+ reg = <0x00000000 0x00200000>;
+ };
+
+ partition at 200000 {
+ label = "uboot";
+ reg = <0x00200000 0x00200000>;
+ };
+
+ partition at 400000 {
+ label = "uboot-env";
+ reg = <0x00400000 0x00100000>;
+ };
+
+ partition at 500000 {
+ label = "kernel";
+ reg = <0x00500000 0x00c00000>;
+ };
+
+ partition at 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-som-wifi-brcm.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-wifi-brcm.dtsi
new file mode 100644
index 000000000000..d7952233a1ee
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-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 = <®_sd1_vmmc>;
+ status = "okay";
+
+ brcmf: wifi at 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-som-wifi-iw61x.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-wifi-iw61x.dtsi
new file mode 100644
index 000000000000..4d47cea982ec
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-imx6ull-var-som-wifi-iw61x.dtsi
@@ -0,0 +1,45 @@
+// 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 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ 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 = <®_sd1_vmmc>;
+ mmc-pwrseq = <&iw61x_pwrseq>;
+ status = "okay";
+};
--
2.47.3
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