[PATCH 6/6] arm64: dts: imx8mp-venice-gw74xx: add WiFi/BT module support

Tim Harvey
2022-08-12T17:36:46Z

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@gateworks.com>
---
.../dts/freescale/imx8mp-venice-gw74xx.dts | 38 +++++++++++++++++--
1 file changed, 35 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 bfc480aaf54d..47866d4e5444 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
@@ -135,10 +135,10 @@ 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>;
};
};

@@ -577,6 +577,21 @@ &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>;
@@ -617,6 +632,23 @@ &usb_dwc3_1 {
status = "okay";
};

+/* SDIO WiFi */
+&usdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ 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>;
--
2.25.1