linux-kernel - [PATCH 5/9] ARM: dts: stm32: add support of WLAN/BT on stm32mp157c-dk2

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Message-ID: <20240827140455.345086-6-valentin.caron@foss.st.com>
Date: Tue, 27 Aug 2024 16:04:51 +0200
From: Valentin Caron <valentin.caron@...s.st.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alexandre Torgue
	<alexandre.torgue@...s.st.com>
CC: <devicetree@...r.kernel.org>, <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        Christophe Roullier <christophe.roullier@...s.st.com>,
        Valentin Caron
	<valentin.caron@...s.st.com>
Subject: [PATCH 5/9] ARM: dts: stm32: add support of WLAN/BT on stm32mp157c-dk2

From: Christophe Roullier <christophe.roullier@...s.st.com>

Add support of WLAN/BT Murata Type 1DX module:
- usart2 is used for Bluetooth interface
- sdmmc2 is used for WLAN (sdio) interface

Signed-off-by: Christophe Roullier <christophe.roullier@...s.st.com>
Signed-off-by: Valentin Caron <valentin.caron@...s.st.com>
---
 arch/arm/boot/dts/st/stm32mp157c-dk2.dts | 41 +++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/st/stm32mp157c-dk2.dts b/arch/arm/boot/dts/st/stm32mp157c-dk2.dts
index 8ac1233f9a02d..5f9c0160a9c49 100644
--- a/arch/arm/boot/dts/st/stm32mp157c-dk2.dts
+++ b/arch/arm/boot/dts/st/stm32mp157c-dk2.dts
@@ -24,6 +24,11 @@ aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	wifi_pwrseq: wifi-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&gpioh 4 GPIO_ACTIVE_LOW>;
+	};
 };
 
 &cryp1 {
@@ -94,10 +99,44 @@ rtc_lsco_pins_a: rtc-lsco-0 {
 	};
 };
 
+/* Wifi */
+&sdmmc2 {
+	pinctrl-names = "default", "opendrain", "sleep";
+	pinctrl-0 = <&sdmmc2_b4_pins_a>;
+	pinctrl-1 = <&sdmmc2_b4_od_pins_a>;
+	pinctrl-2 = <&sdmmc2_b4_sleep_pins_a>;
+	non-removable;
+	cap-sdio-irq;
+	st,neg-edge;
+	bus-width = <4>;
+	vmmc-supply = <&v3v3>;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	brcmf: bcrmf@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtc_lsco_pins_a>;
+	};
+};
+
+/* Bluetooth */
 &usart2 {
 	pinctrl-names = "default", "sleep", "idle";
 	pinctrl-0 = <&usart2_pins_c>;
 	pinctrl-1 = <&usart2_sleep_pins_c>;
 	pinctrl-2 = <&usart2_idle_pins_c>;
-	status = "disabled";
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		shutdown-gpios = <&gpioz 6 GPIO_ACTIVE_HIGH>;
+		compatible = "brcm,bcm43438-bt";
+		max-speed = <3000000>;
+		vbat-supply = <&v3v3>;
+		vddio-supply = <&v3v3>;
+	};
 };
-- 
2.25.1