};
                };
 
+               cpucp_mbox: mailbox@17430000 {
+                       compatible = "qcom,x1e80100-cpucp-mbox";
+                       reg = <0 0x17430000 0 0x10000>, <0 0x18830000 0 0x10000>;
+                       interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
+                       #mbox-cells = <1>;
+               };
+
                apps_rsc: rsc@17500000 {
                        compatible = "qcom,rpmh-rsc";
                        reg = <0 0x17500000 0 0x10000>,
                        };
                };
 
+               sram: sram@18b4e000 {
+                       compatible = "mmio-sram";
+                       reg = <0x0 0x18b4e000 0x0 0x400>;
+
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+                       ranges = <0x0 0x0 0x18b4e000 0x400>;
+
+                       cpu_scp_lpri0: scp-sram-section@0 {
+                               compatible = "arm,scmi-shmem";
+                               reg = <0x0 0x200>;
+                       };
+
+                       cpu_scp_lpri1: scp-sram-section@200 {
+                               compatible = "arm,scmi-shmem";
+                               reg = <0x200 0x200>;
+                       };
+               };
+
                sbsa_watchdog: watchdog@1c840000 {
                        compatible = "arm,sbsa-gwdt";
                        reg = <0 0x1c840000 0 0x1000>,