linux-kernel - [PATCH 4/4] arm64: dts: imx93-phyboard-nash: Add PEB-WLBT-07 overlay

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Message-Id: <20250619063954.1730231-5-primoz.fiser@norik.com>
Date: Thu, 19 Jun 2025 08:39:54 +0200
From: Primoz Fiser <primoz.fiser@...ik.com>
To: Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] arm64: dts: imx93-phyboard-nash: Add PEB-WLBT-07 overlay

Add overlay to support PHYTEC PEB-WLBT-07 WiFi/Bluetooth evaluation
adapter on phyBOARD-Nash-i.MX93 board. Adapter uses the u-blox MAYA-W2
module (IW612 chipset) which is capable of Wi-Fi 6 and Bluetooth 5.4 LE.

Signed-off-by: Primoz Fiser <primoz.fiser@...ik.com>
---
 arch/arm64/boot/dts/freescale/Makefile        |  2 +
 .../imx93-phyboard-nash-peb-wlbt-07.dtso      | 88 +++++++++++++++++++
 2 files changed, 90 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx93-phyboard-nash-peb-wlbt-07.dtso

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 3166684ab558..699c3b1d80b2 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -325,9 +325,11 @@ dtb-$(CONFIG_ARCH_MXC) += imx93-kontron-bl-osm-s.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-nash.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-segin.dtb
 
+imx93-phyboard-nash-peb-wlbt-07-dtbs += imx93-phyboard-nash.dtb imx93-phyboard-nash-peb-wlbt-07.dtbo
 imx93-phyboard-segin-peb-eval-01-dtbs += imx93-phyboard-segin.dtb imx93-phyboard-segin-peb-eval-01.dtbo
 imx93-phyboard-segin-peb-wlbt-05-dtbs += imx93-phyboard-segin.dtb imx93-phyboard-segin-peb-wlbt-05.dtbo
 imx93-phycore-rpmsg-dtbs += imx93-phyboard-nash.dtb imx93-phyboard-segin.dtb imx93-phycore-rpmsg.dtbo
+dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-nash-peb-wlbt-07.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-segin-peb-eval-01.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-segin-peb-wlbt-05.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx93-phycore-rpmsg.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx93-phyboard-nash-peb-wlbt-07.dtso b/arch/arm64/boot/dts/freescale/imx93-phyboard-nash-peb-wlbt-07.dtso
new file mode 100644
index 000000000000..c7553e39e763
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx93-phyboard-nash-peb-wlbt-07.dtso
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2025 PHYTEC Messtechnik GmbH
+ * Author: Primoz Fiser <primoz.fiser@...ik.com>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include "imx93-pinfunc.h"
+
+&{/} {
+	usdhc3_pwrseq: usdhc3-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&gpio4 29 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&lpuart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart5>;
+	status = "okay";
+
+	bluetooth {
+		compatible = "nxp,88w8987-bt";
+	};
+};
+
+/*
+ * NOTE: When uSDHC3 port is multiplexed on GPIO_IO[27:22] pads, it only
+ * supports 50 MHz mode, due to introduction of potential variations in
+ * trace impedance, drive strength, and timing skew. Refer to i.MX 93
+ * Application Processors Data Sheet, Rev. 3, page 60 for more details.
+ */
+&usdhc3 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&pinctrl_usdhc3>, <&pinctrl_wlbt>;
+	pinctrl-1 = <&pinctrl_usdhc3_sleep>, <&pinctrl_wlbt>;
+	mmc-pwrseq = <&usdhc3_pwrseq>;
+	bus-width = <4>;
+	keep-power-in-suspend;
+	non-removable;
+	wakeup-source;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_uart5: uart5grp {
+		fsl,pins = <
+			MX93_PAD_DAP_TDO_TRACESWO__LPUART5_TX	0x31e
+			MX93_PAD_DAP_TDI__LPUART5_RX		0x31e
+			MX93_PAD_DAP_TCLK_SWCLK__LPUART5_CTS_B	0x31e
+			MX93_PAD_DAP_TMS_SWDIO__LPUART5_RTS_B	0x31e
+		>;
+	};
+
+	/* need to config the SION for data and cmd pad, refer to ERR052021 */
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX93_PAD_GPIO_IO22__USDHC3_CLK		0x179e
+			MX93_PAD_SD3_CMD__USDHC3_CMD 		0x4000178e
+			MX93_PAD_SD3_DATA0__USDHC3_DATA0	0x4000138e
+			MX93_PAD_SD3_DATA1__USDHC3_DATA1	0x4000138e
+			MX93_PAD_SD3_DATA2__USDHC3_DATA2	0x4000138e
+			MX93_PAD_SD3_DATA3__USDHC3_DATA3	0x4000138e
+		>;
+	};
+
+	pinctrl_usdhc3_sleep: usdhc3sleepgrp {
+		fsl,pins = <
+			MX93_PAD_GPIO_IO22__USDHC3_CLK		0x31e
+			MX93_PAD_SD3_CMD__USDHC3_CMD 		0x31e
+			MX93_PAD_SD3_DATA0__USDHC3_DATA0	0x31e
+			MX93_PAD_SD3_DATA1__USDHC3_DATA1	0x31e
+			MX93_PAD_SD3_DATA2__USDHC3_DATA2	0x31e
+			MX93_PAD_SD3_DATA3__USDHC3_DATA3	0x31e
+		>;
+	};
+
+	pinctrl_wlbt: wlbtgrp {
+		fsl,pins = <
+			MX93_PAD_CCM_CLKO2__GPIO3_IO27		0x31e	/* WAKE_DEV */
+			MX93_PAD_CCM_CLKO3__GPIO4_IO28		0x31e	/* WAKE_HOST */
+			MX93_PAD_CCM_CLKO4__GPIO4_IO29		0x31e	/* PDn */
+		>;
+	};
+};
-- 
2.34.1