arm64: dts: rockchip: add overlay for the WiFi/BT module on Sige5 v1.2

Add support for the Broadcom based WiFi/Bluetooth module (BW3752-50B1)
found in ArmSoM Sige5 boards version 1.2. This includes SDIO connected
WiFi with OOB interrupt support, as well as UART connected Bluetooth
with its respective interrupts.

PCM support for Bluetooth SCO audio is left out for now. It is connected
to SAI2 in M0 pin mode in case someone needs to enable it.

Note that v1.1 boards used a Realtek based module which is incompatible
with these DT nodes, so v1.1 would need a different overlay.

Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://lore.kernel.org/r/20250614-sige5-updates-v2-4-3bb31b02623c@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index b813866ba283962475eadf3053549e6c9599f1c9..ce2aeb826f194b29681c8e951eb53060a242c9d6 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -145,6 +145,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-display-vz.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-io-expander.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-armsom-sige5.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-armsom-sige5-v1.2-wifibt.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb1-v10.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-luckfox-omni3576.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-roc-pc.dtb
@@ -238,6 +239,10 @@ rk3568-wolfvision-pf5-vz-2-uhd-dtbs := rk3568-wolfvision-pf5.dtb \
        rk3568-wolfvision-pf5-display-vz.dtbo \
        rk3568-wolfvision-pf5-io-expander.dtbo
 
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-armsom-sige5-v1.2-wifibt.dtb
+rk3576-armsom-sige5-v1.2-wifibt-dtbs := rk3576-armsom-sige5.dtb \
+       rk3576-armsom-sige5-v1.2-wifibt.dtbo
+
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-edgeble-neu6a-wifi.dtb
 rk3588-edgeble-neu6a-wifi-dtbs := rk3588-edgeble-neu6a-io.dtb \
        rk3588-edgeble-neu6a-wifi.dtbo

diff --git a/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5-v1.2-wifibt.dtso b/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5-v1.2-wifibt.dtso
new file mode 100644 (file)
index 0000000..242ccfa
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5-v1.2-wifibt.dtso
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * DT-overlay to enable the onboard WiFi and Bluetooth module present in v1.2
+ * boards. Note that v1.1 boards use a different module, so this probably won't
+ * work there.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+
+&sdio {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       wifi@1 {
+               compatible = "brcm,bcm4329-fmac";
+               reg = <1>;
+               clock-names = "lpo";
+               clocks = <&hym8563>;
+               interrupt-names = "host-wake";
+               interrupt-parent = <&gpio0>;
+               interrupts = <RK_PB0 IRQ_TYPE_LEVEL_HIGH>;
+               pinctrl-0 = <&wifi_wake_host>;
+               pinctrl-names = "default";
+       };
+};
+
+&uart4 {
+       status = "okay";
+
+       bluetooth {
+               compatible = "brcm,bcm43438-bt";
+               clock-names = "lpo";
+               clocks = <&hym8563>;
+               device-wakeup-gpios = <&gpio1 RK_PD7 GPIO_ACTIVE_HIGH>;
+               interrupt-names = "host-wakeup";
+               interrupt-parent = <&gpio0>;
+               interrupts = <RK_PB1 IRQ_TYPE_LEVEL_HIGH>;
+               pinctrl-0 = <&bt_reg_on>, <&bt_wake_host>, <&host_wake_bt>;
+               pinctrl-names = "default";
+               shutdown-gpios = <&gpio0 RK_PC6 GPIO_ACTIVE_HIGH>;
+               vbat-supply = <&vcc_3v3_s3>;
+               vddio-supply = <&vcc_1v8_s3>;
+       };
+};