diff --git a/arch/arc/core/arc_smp.c b/arch/arc/core/arc_smp.c
index be88f6150a7..5b39817f9bf 100644
--- a/arch/arc/core/arc_smp.c
+++ b/arch/arc/core/arc_smp.c
@@ -13,16 +13,8 @@
 #include <zephyr/kernel.h>
 #include <zephyr/kernel_structs.h>
 #include <ksched.h>
-#include <soc.h>
 #include <zephyr/init.h>
 
-
-#ifndef IRQ_ICI
-#define IRQ_ICI 19
-#endif
-
-#define ARCV2_ICI_IRQ_PRIORITY 1
-
 #define MP_PRIMARY_CPU_ID 0
 
 volatile struct {
@@ -112,8 +104,9 @@ void z_arc_slave_start(int cpu_num)
 	z_irq_setup();
 
 	z_arc_connect_ici_clear();
-	z_irq_priority_set(IRQ_ICI, ARCV2_ICI_IRQ_PRIORITY, 0);
-	irq_enable(IRQ_ICI);
+	z_irq_priority_set(DT_IRQN(DT_NODELABEL(ici)),
+			   DT_IRQ(DT_NODELABEL(ici), priority), 0);
+	irq_enable(DT_IRQN(DT_NODELABEL(ici)));
 #endif
 	/* call the function set by arch_start_cpu */
 	fn = arc_cpu_init[cpu_num].fn;
@@ -162,10 +155,11 @@ static int arc_smp_init(const struct device *dev)
 	if (bcr.ipi) {
 	/* register ici interrupt, just need master core to register once */
 		z_arc_connect_ici_clear();
-		IRQ_CONNECT(IRQ_ICI, ARCV2_ICI_IRQ_PRIORITY,
-		    sched_ipi_handler, NULL, 0);
+		IRQ_CONNECT(DT_IRQN(DT_NODELABEL(ici)),
+			    DT_IRQ(DT_NODELABEL(ici), priority),
+			    sched_ipi_handler, NULL, 0);
 
-		irq_enable(IRQ_ICI);
+		irq_enable(DT_IRQN(DT_NODELABEL(ici)));
 	} else {
 		__ASSERT(0,
 			"ARC connect has no inter-core interrupt\n");
diff --git a/boards/arc/nsim/nsim-smp.dtsi b/boards/arc/nsim/nsim-smp.dtsi
new file mode 100644
index 00000000000..5a2eb307bad
--- /dev/null
+++ b/boards/arc/nsim/nsim-smp.dtsi
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2022 Nordic Semiconductor ASA
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "nsim.dtsi"
+
+/ {
+	ici: intercore-interrupt-unit {
+		compatible = "snps,archs-ici";
+		interrupts = <19 1>;
+		interrupt-parent = <&intc>;
+	};
+};
diff --git a/boards/arc/nsim/nsim_hs5x_smp.dts b/boards/arc/nsim/nsim_hs5x_smp.dts
index adae0b6dd28..1a4a20ff3b4 100644
--- a/boards/arc/nsim/nsim_hs5x_smp.dts
+++ b/boards/arc/nsim/nsim_hs5x_smp.dts
@@ -6,7 +6,7 @@
 
 /dts-v1/;
 
-#include "nsim.dtsi"
+#include "nsim-smp.dtsi"
 #include "nsim-flat-mem.dtsi"
 
 / {
diff --git a/boards/arc/nsim/nsim_hs6x_smp.dts b/boards/arc/nsim/nsim_hs6x_smp.dts
index a5ca7f9553a..945396e8498 100644
--- a/boards/arc/nsim/nsim_hs6x_smp.dts
+++ b/boards/arc/nsim/nsim_hs6x_smp.dts
@@ -6,7 +6,7 @@
 
 /dts-v1/;
 
-#include "nsim.dtsi"
+#include "nsim-smp.dtsi"
 #include "nsim-flat-mem.dtsi"
 
 / {
diff --git a/boards/arc/nsim/nsim_hs_smp.dts b/boards/arc/nsim/nsim_hs_smp.dts
index 4ec20da3b1d..c827dd32c18 100644
--- a/boards/arc/nsim/nsim_hs_smp.dts
+++ b/boards/arc/nsim/nsim_hs_smp.dts
@@ -6,7 +6,7 @@
 
 /dts-v1/;
 
-#include "nsim.dtsi"
+#include "nsim-smp.dtsi"
 #include "nsim-flat-mem.dtsi"
 
 / {
diff --git a/dts/arc/synopsys/arc_hsdk.dtsi b/dts/arc/synopsys/arc_hsdk.dtsi
index fc29fd7c1d1..d7bca66bcc5 100644
--- a/dts/arc/synopsys/arc_hsdk.dtsi
+++ b/dts/arc/synopsys/arc_hsdk.dtsi
@@ -54,6 +54,12 @@
 		interrupt-parent = <&intc>;
 	};
 
+	ici: intercore-interrupt-unit {
+		compatible = "snps,archs-ici";
+		interrupts = <19 1>;
+		interrupt-parent = <&intc>;
+	};
+
 	timer0: timer0 {
 		compatible = "snps,arc-timer";
 		interrupts = <16 1>;
diff --git a/dts/bindings/misc/snps,archs-ici.yaml b/dts/bindings/misc/snps,archs-ici.yaml
new file mode 100644
index 00000000000..4f5b7cc3820
--- /dev/null
+++ b/dts/bindings/misc/snps,archs-ici.yaml
@@ -0,0 +1,8 @@
+# Copyright (c) 2022 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+description: Inter-Core Interrupt Unit (ICI)
+
+compatible: "snps,archs-ici"
+
+include: base.yaml
diff --git a/soc/arc/snps_arc_hsdk/soc.h b/soc/arc/snps_arc_hsdk/soc.h
index 34da96ef486..fa44abe0db4 100644
--- a/soc/arc/snps_arc_hsdk/soc.h
+++ b/soc/arc/snps_arc_hsdk/soc.h
@@ -16,10 +16,6 @@
 
 #include <zephyr/sys/util.h>
 
-
-/* ARC HS Core IRQs */
-#define IRQ_ICI					19
-
 #ifndef _ASMLANGUAGE