arm64: dts: rockchip: add Rock 5B+

Add ROCK 5B+, which is an improved version of the ROCK 5B with the
following changes:

 * Memory LPDDR4X -> LPDDR5
 * HDMI input connector size
 * eMMC socket -> onboard
 * M.2 E-Key is replaced by onboard RTL8852BE WLAN/BT
 * M.2 M-Key 1x4 lanes is replaced by 2x2 lanes
 * Added M.2 B-Key for USB connected WWAN modules (untested)
 * Add second camera port (not yet supported in upstream Linux)
 * Add dedicated USB-C port for device power (no impact in DT;
   the existing port has not been changed and the new port is
   handled by CH224D standalone chip)

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20250508-rock5bp-for-upstream-v2-4-677033cc1ac2@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

2 files changed, 114 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 3057c81c5f39..c3fd329acc6a 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -166,6 +166,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5-itx.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b-pcie-ep.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b-pcie-srns.dtbo
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b-plus.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-tiger-haikou.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-tiger-haikou-video-demo.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-toybrick-x0.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-plus.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-plus.dts
new file mode 100644
index 000000000000..74c7b6502e4d
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-plus.dts
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include "rk3588-rock-5b.dtsi"
+
+/ {
+	model = "Radxa ROCK 5B+";
+	compatible = "radxa,rock-5b-plus", "rockchip,rk3588";
+
+	rfkill-wwan {
+		compatible = "rfkill-gpio";
+		label = "rfkill-m2-wwan";
+		radio-type = "wwan";
+		shutdown-gpios = <&gpio3 RK_PA6 GPIO_ACTIVE_HIGH>;
+	};
+
+	vcc3v3_4g: regulator-vcc3v3-4g {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio1 RK_PD2 GPIO_ACTIVE_HIGH>;
+		/* pinctrl for the GPIO is requested by vcc3v3_pcie2x1l0 */
+		regulator-name = "vcc3v3_4g";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <50000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc3v3_wwan_pwr: regulator-vcc3v3-wwan {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio2 RK_PB1 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&wwan_power_en>;
+		regulator-name = "vcc3v3_wwan_pwr";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc3v3_4g>;
+	};
+};
+
+&gpio0 {
+	wwan-disable2-n-hog {
+		gpios = <RK_PB2 GPIO_ACTIVE_LOW>;
+		output-low;
+		line-name = "M.2 B-key W_DISABLE2#";
+		gpio-hog;
+	};
+};
+
+&gpio2 {
+	wwan-reset-n-hog {
+		gpios = <RK_PB3 GPIO_ACTIVE_LOW>;
+		output-low;
+		line-name = "M.2 B-key RESET#";
+		gpio-hog;
+	};
+
+	wwan-wake-n-hog {
+		gpios = <RK_PB2 GPIO_ACTIVE_LOW>;
+		input;
+		line-name = "M.2 B-key WoWWAN#";
+		gpio-hog;
+	};
+};
+
+&pcie30phy {
+	data-lanes = <1 1 2 2>;
+};
+
+&pcie3x2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie3x2_rst>;
+	reset-gpios = <&gpio4 RK_PB0 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&vcc3v3_pcie30>;
+	status = "okay";
+};
+
+&pcie3x4 {
+	num-lanes = <2>;
+};
+
+&pinctrl {
+	wwan {
+		wwan_power_en: wwan-pwr-en {
+			rockchip,pins = <2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	pcie3 {
+		pcie3x2_rst: pcie3x2-rst {
+			rockchip,pins = <4 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	usb {
+		vcc5v0_host_en: vcc5v0-host-en {
+			rockchip,pins = <1 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+&vcc5v0_host {
+	enable-active-high;
+	gpio = <&gpio1 RK_PA1 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&vcc5v0_host_en>;
+};