arm64: dts: qcom: add Radxa CM-Q64 on RPi CM5 IO carrier board

Add device tree for Radxa CM-Q64 compute module on Raspberry Pi
CM5 IO carrier board. Includes full PMIC, PCIe, USB, DP, audio
(WCD938x), UFS, and SD card support. Add KVM overlay for
hypervisor mode configuration.

Signed-off-by: Jiali Chen <chenjiali@radxa.com>

Author: CodeChenL

arch/arm64/boot/dts/qcom/Makefile

@@ -126,6 +126,9 @@ dtb-$(CONFIG_ARCH_QCOM)	+= qcm6490-shift-otter.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-1000.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-4000.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs615-ride.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= qcs6490-radxa-cm-q64-rpi-cm5-io.dtb
+qcs6490-radxa-cm-q64-rpi-cm5-io-kvm-dtbs	:= qcs6490-radxa-cm-q64-rpi-cm5-io.dtb qcs6490-radxa-cm-q64-rpi-cm5-io-kvm.dtbo
+dtb-$(CONFIG_ARCH_QCOM)	+= qcs6490-radxa-cm-q64-rpi-cm5-io-kvm.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs6490-radxa-dragon-q6a.dtb
 qcs6490-radxa-dragon-q6a-kvm-dtbs	:= qcs6490-radxa-dragon-q6a.dtb qcs6490-radxa-dragon-q6a-kvm.dtbo
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs6490-radxa-dragon-q6a-kvm.dtb

arch/arm64/boot/dts/qcom/qcs6490-radxa-cm-q64-rpi-cm5-io-kvm.dtso

@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2025 Radxa Computer (Shenzhen) Co., Ltd.
+ *
+ * This device tree overlay is supposed to be applied by UEFI firmware
+ * when Hypervisor Override is set to enabled.
+ */
+
+#include <dt-bindings/firmware/qcom,scm.h>
+
+/dts-v1/;
+/plugin/;
+
+/* Required when Hypervisor Override is set to auto */
+&{/chosen} {
+	radxa,enable-kvm = <1>;
+};
+
+/* We can't and don't need to use zap shader in EL2 as linux can zap the gpu on it's own. */
+&gpu_zap_shader {
+	status = "disabled";
+};
+
+&soc {
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	pcie@1c08000 {
+		#address-cells = <3>;
+		#size-cells = <2>;
+
+		/* Allow using upper PCIe space */
+		ranges = <0x01000000 0x0 0x00000000 0x0 0x40200000 0x0 0x100000>,
+			<0x02000000 0x0 0x40300000 0x0 0x40300000 0x0 0x1fd00000>,
+			<0x03000000 0x4 0x00000000 0x4 0x00000000 0x3 0x00000000>;
+	};
+};
+
+&remoteproc_adsp {
+	qcom,broken-reset;
+};
+
+&remoteproc_cdsp {
+	qcom,broken-reset;
+};
+
+&scm {
+	qcom,shm-bridge-vmid = <QCOM_SCM_VMID_SELF_OWNER>;
+};
+
+&venus {
+	iommus = <&apps_smmu 0x2180 0x20>,
+		 <&apps_smmu 0x2184 0x20>;
+
+	video-firmware {
+		iommus = <&apps_smmu 0x21a2 0x0>;
+	};
+};