ARM: dts: bcm283x-rpi: Move Wifi/BT into separate dtsi

A Wifi/BT chip is quite common for the Raspberry Pi boards. So move those
definitions into a separate dtsi in order to avoid copy & paste. This
change was inspired by a vendor tree patch from Phil Elwell.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1628334401-6577-7-git-send-email-stefan.wahren@i2se.comSigned-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>

arch/arm/boot/dts/bcm2711-rpi-4-b.dts

@@ -3,6 +3,7 @@
 #include "bcm2711.dtsi"
 #include "bcm2711-rpi.dtsi"
 #include "bcm283x-rpi-usb-peripheral.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
@@ -26,11 +27,6 @@ led-pwr {
 		};
 	};
 
-	wifi_pwrseq: wifi-pwrseq {
-		compatible = "mmc-pwrseq-simple";
-		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
-	};
-
 	sd_io_1v8_reg: sd_io_1v8_reg {
 		compatible = "regulator-gpio";
 		regulator-name = "vdd-sd-io";
@@ -56,6 +52,10 @@ sd_vcc_reg: sd_vcc_reg {
 	};
 };
 
+&bt {
+	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
+};
+
 &ddc0 {
 	status = "okay";
 };
@@ -178,23 +178,6 @@ &pwm1 {
 	status = "okay";
 };
 
-/* SDHCI is used to control the SDIO for wireless */
-&sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&emmc_gpio34>;
-	bus-width = <4>;
-	non-removable;
-	mmc-pwrseq = <&wifi_pwrseq>;
-	status = "okay";
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
-};
-
 /* EMMC2 is used to drive the SD card */
 &emmc2 {
 	vqmmc-supply = <&sd_io_1v8_reg>;
@@ -236,13 +219,6 @@ &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
 	uart-has-rtscts;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
-	};
 };
 
 /* uart1 is mapped to the pin header */
@@ -259,3 +235,7 @@ &vc4 {
 &vec {
 	status = "disabled";
 };
+
+&wifi_pwrseq {
+	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+};

arch/arm/boot/dts/bcm2835-rpi-zero-w.dts

@@ -7,6 +7,7 @@
 #include "bcm2835.dtsi"
 #include "bcm2835-rpi.dtsi"
 #include "bcm283x-rpi-usb-otg.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
@@ -27,11 +28,10 @@ led-act {
 			gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
 		};
 	};
+};
 
-	wifi_pwrseq: wifi-pwrseq {
-		compatible = "mmc-pwrseq-simple";
-		reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
-	};
+&bt {
+	shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
 };
 
 &gpio {
@@ -110,19 +110,7 @@ &hdmi {
 };
 
 &sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
 	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
-	bus-width = <4>;
-	mmc-pwrseq = <&wifi_pwrseq>;
-	non-removable;
-	status = "okay";
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
 };
 
 &sdhost {
@@ -135,13 +123,6 @@ &sdhost {
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-		shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
-	};
 };
 
 &uart1 {
@@ -149,3 +130,7 @@ &uart1 {
 	pinctrl-0 = <&uart1_gpio14>;
 	status = "okay";
 };
+
+&wifi_pwrseq {
+	reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
+};

arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts

@@ -3,6 +3,7 @@
 #include "bcm2837.dtsi"
 #include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,3-model-a-plus", "brcm,bcm2837";
@@ -130,28 +131,6 @@ &pwm {
 	status = "okay";
 };
 
-/*
- * SDHCI is used to control the SDIO for wireless
- *
- * WL_REG_ON and BT_REG_ON of the CYW43455 Wifi/BT module are driven
- * by a single GPIO. We can't give GPIO control to one of the drivers,
- * otherwise the other part would get unexpectedly disturbed.
- */
-&sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&emmc_gpio34>;
-	status = "okay";
-	bus-width = <4>;
-	non-removable;
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
-};
-
 /* SDHOST is used to drive the SD card */
 &sdhost {
 	pinctrl-names = "default";
@@ -160,16 +139,15 @@ &sdhost {
 	bus-width = <4>;
 };
 
-/* uart0 communicates with the BT module */
+/* uart0 communicates with the BT module
+ *
+ * WL_REG_ON and BT_REG_ON of the CYW43455 Wifi/BT module are driven
+ * by a single GPIO. We can't give GPIO control to one of the drivers,
+ * otherwise the other part would get unexpectedly disturbed.
+ */
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-	};
 };
 
 /* uart1 is mapped to the pin header */

arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts

@@ -4,6 +4,7 @@
 #include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-lan7515.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837";
@@ -31,11 +32,10 @@ led-pwr {
 			linux,default-trigger = "default-on";
 		};
 	};
+};
 
-	wifi_pwrseq: wifi-pwrseq {
-		compatible = "mmc-pwrseq-simple";
-		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
-	};
+&bt {
+	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
 };
 
 &firmware {
@@ -137,23 +137,6 @@ &pwm {
 	status = "okay";
 };
 
-/* SDHCI is used to control the SDIO for wireless */
-&sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&emmc_gpio34>;
-	status = "okay";
-	bus-width = <4>;
-	non-removable;
-	mmc-pwrseq = <&wifi_pwrseq>;
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
-};
-
 /* SDHOST is used to drive the SD card */
 &sdhost {
 	pinctrl-names = "default";
@@ -166,13 +149,6 @@ &sdhost {
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
-	};
 };
 
 /* uart1 is mapped to the pin header */
@@ -181,3 +157,7 @@ &uart1 {
 	pinctrl-0 = <&uart1_gpio14>;
 	status = "okay";
 };
+
+&wifi_pwrseq {
+	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+};

arch/arm/boot/dts/bcm2837-rpi-3-b.dts

@@ -4,6 +4,7 @@
 #include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-smsc9514.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
 
 / {
 	compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
@@ -24,11 +25,10 @@ led-act {
 			gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
 		};
 	};
+};
 
-	wifi_pwrseq: wifi-pwrseq {
-		compatible = "mmc-pwrseq-simple";
-		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
-	};
+&bt {
+	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
 };
 
 &firmware {
@@ -134,13 +134,6 @@ &hdmi {
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		max-speed = <2000000>;
-		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
-	};
 };
 
 /* uart1 is mapped to the pin header */
@@ -150,23 +143,6 @@ &uart1 {
 	status = "okay";
 };
 
-/* SDHCI is used to control the SDIO for wireless */
-&sdhci {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&emmc_gpio34>;
-	status = "okay";
-	bus-width = <4>;
-	non-removable;
-	mmc-pwrseq = <&wifi_pwrseq>;
-
-	brcmf: wifi@1 {
-		reg = <1>;
-		compatible = "brcm,bcm4329-fmac";
-	};
-};
-
 /* SDHOST is used to drive the SD card */
 &sdhost {
 	pinctrl-names = "default";
@@ -174,3 +150,7 @@ &sdhost {
 	status = "okay";
 	bus-width = <4>;
 };
+
+&wifi_pwrseq {
+	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+};

arch/arm/boot/dts/bcm283x-rpi-wifi-bt.dtsi

+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	wifi_pwrseq: wifi-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+	};
+};
+
+/* SDHCI is used to control the SDIO for wireless */
+&sdhci {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_gpio34>;
+	bus-width = <4>;
+	non-removable;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	status = "okay";
+
+	brcmf: wifi@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+	};
+};
+
+/* uart0 communicates with the BT module */
+&uart0 {
+	status = "okay";
+
+	bt: bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		max-speed = <2000000>;
+	};
+};