linux-kernel - [PATCH v2 5/5] arm64: dts: imx8mp-venice-gw74xx: add WiFi/BT module support

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Date:   Mon, 12 Sep 2022 11:08:36 -0700
From:   Tim Harvey <tharvey@...eworks.com>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     NXP Linux Team <linux-imx@....com>,
        Fabio Estevam <festevam@...il.com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Tim Harvey <tharvey@...eworks.com>
Subject: [PATCH v2 5/5] arm64: dts: imx8mp-venice-gw74xx: add WiFi/BT module support

The GW74xx supports an on-board Laird Connectivity Sterling LWB5+ module
which uses a Cypress CYW4373W chip to provide 1x1 802.11 a/b/g/n/ac +
Bluetooth 5.2.

Add the proper device-tree nodes for it.

Signed-off-by: Tim Harvey <tharvey@...eworks.com>
---
v2: no changes
---
 .../dts/freescale/imx8mp-venice-gw74xx.dts    | 62 ++++++++++++++++++-
 1 file changed, 59 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
index 066a4afaf8a1..a2b32275bbf9 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
@@ -134,10 +134,10 @@ reg_wifi_en: regulator-wifi-en {
 		compatible = "regulator-fixed";
 		regulator-name = "wl";
 		gpio = <&gpio3 9 GPIO_ACTIVE_HIGH>;
-		startup-delay-us = <100>;
+		startup-delay-us = <70000>;
 		enable-active-high;
-		regulator-min-microvolt = <1800000>;
-		regulator-max-microvolt = <1800000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
 	};
 };
 
@@ -576,6 +576,21 @@ &uart2 {
 	status = "okay";
 };
 
+/* bluetooth HCI */
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>, <&pinctrl_uart3_gpio>;
+	cts-gpios = <&gpio3 21 GPIO_ACTIVE_LOW>;
+	rts-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm4330-bt";
+		shutdown-gpios = <&gpio3 8 GPIO_ACTIVE_HIGH>;
+	};
+};
+
 &uart4 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart4>;
@@ -616,6 +631,25 @@ &usb_dwc3_1 {
 	status = "okay";
 };
 
+/* SDIO WiFi */
+&usdhc1 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+	bus-width = <4>;
+	non-removable;
+	vmmc-supply = <&reg_wifi_en>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	wifi@0 {
+		compatible = "cypress,cyw4373-fmac";
+		reg = <0>;
+	};
+};
+
 /* eMMC */
 &usdhc3 {
 	assigned-clocks = <&clk IMX8MP_CLK_USDHC3>;
@@ -860,6 +894,28 @@ MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3	0x1d0
 		>;
 	};
 
+	pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK	0x194
+			MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD	0x1d4
+			MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0	0x1d4
+			MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1	0x1d4
+			MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2	0x1d4
+			MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3	0x1d4
+		>;
+	};
+
+	pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK	0x196
+			MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD	0x1d6
+			MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0	0x1d6
+			MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1	0x1d6
+			MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2	0x1d6
+			MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3	0x1d6
+		>;
+	};
+
 	pinctrl_usdhc3: usdhc3grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK	0x190
-- 
2.25.1