FVP: Add support for passing platform's topology to DTS

This patch adds support for passing FVP platform's topology
configuration to DTS files for compilation, which allows to
build DTBs with correct number of clusters and CPUs.
This removes non-existing clusters/CPUs from the compiled
device tree blob and fixes reported Linux errors when trying
to power on absent CPUs/PEs.
If DTS file is passed using FVP_HW_CONFIG_DTS build option from
the platform's makefile, FVP_CLUSTER_COUNT, FVP_MAX_CPUS_PER_CLUSTER
and FVP_MAX_PE_PER_CPU parameters are used, otherwise CI script will
use the default values from the corresponding DTS file.

Change-Id: Idcb45dc6ad5e3eaea18573aff1a01c9344404ab3
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

fdts/fvp-base-gicv2-psci-aarch32.dts

@@ -4,8 +4,15 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+/* Configuration: max 4 clusters with up to 4 CPUs */
+
 /dts-v1/;
 
+#define	AFF
+#define	REG_32
+
+#include "fvp-defs.dtsi"
+
 /memreserve/ 0x80000000 0x00010000;
 
 / {
@@ -42,37 +49,7 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu-map {
-			cluster0 {
-				core0 {
-					cpu = <&CPU0>;
-				};
-				core1 {
-					cpu = <&CPU1>;
-				};
-				core2 {
-					cpu = <&CPU2>;
-				};
-				core3 {
-					cpu = <&CPU3>;
-				};
-			};
-
-			cluster1 {
-				core0 {
-					cpu = <&CPU4>;
-				};
-				core1 {
-					cpu = <&CPU5>;
-				};
-				core2 {
-					cpu = <&CPU6>;
-				};
-				core3 {
-					cpu = <&CPU7>;
-				};
-			};
-		};
+		CPU_MAP
 
 		idle-states {
 			entry-method = "arm,psci";
@@ -96,77 +73,7 @@
 			};
 		};
 
-		CPU0:cpu@0 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU1:cpu@1 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x1>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU2:cpu@2 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x2>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU3:cpu@3 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x3>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU4:cpu@100 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x100>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU5:cpu@101 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x101>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU6:cpu@102 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x102>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU7:cpu@103 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x103>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
+		CPUS
 
 		L2_0: l2-cache0 {
 			compatible = "cache";

fdts/fvp-base-gicv2-psci.dts

@@ -4,8 +4,14 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+/* Configuration: max 4 clusters with up to 4 CPUs */
+
 /dts-v1/;
 
+#define	AFF
+
+#include "fvp-defs.dtsi"
+
 /memreserve/ 0x80000000 0x00010000;
 
 / {
@@ -42,37 +48,7 @@
 		#address-cells = <2>;
 		#size-cells = <0>;
 
-		cpu-map {
-			cluster0 {
-				core0 {
-					cpu = <&CPU0>;
-				};
-				core1 {
-					cpu = <&CPU1>;
-				};
-				core2 {
-					cpu = <&CPU2>;
-				};
-				core3 {
-					cpu = <&CPU3>;
-				};
-			};
-
-			cluster1 {
-				core0 {
-					cpu = <&CPU4>;
-				};
-				core1 {
-					cpu = <&CPU5>;
-				};
-				core2 {
-					cpu = <&CPU6>;
-				};
-				core3 {
-					cpu = <&CPU7>;
-				};
-			};
-		};
+		CPU_MAP
 
 		idle-states {
 			entry-method = "arm,psci";
@@ -96,77 +72,7 @@
 			};
 		};
 
-		CPU0:cpu@0 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x0>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU1:cpu@1 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x1>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU2:cpu@2 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x2>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU3:cpu@3 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x3>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU4:cpu@100 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x100>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU5:cpu@101 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x101>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU6:cpu@102 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x102>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU7:cpu@103 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x103>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
+		CPUS
 
 		L2_0: l2-cache0 {
 			compatible = "cache";

fdts/fvp-base-gicv3-psci-1t.dts

@@ -4,38 +4,11 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-/dts-v1/;
-
-#include "fvp-base-gicv3-psci-common.dtsi"
-
-&CPU0 {
-	reg = <0x0 0x0>;
-};
-
-&CPU1 {
-	reg = <0x0 0x100>;
-};
+/* Configuration: max 4 clusters with up to 4 CPUs with 1 thread per each */
 
-&CPU2 {
-	reg = <0x0 0x200>;
-};
-
-&CPU3 {
-	reg = <0x0 0x300>;
-};
-
-&CPU4 {
-	reg = <0x0 0x10000>;
-};
-
-&CPU5 {
-	reg = <0x0 0x10100>;
-};
+/dts-v1/;
 
-&CPU6 {
-	reg = <0x0 0x10200>;
-};
+#define	AFF	00
 
-&CPU7 {
-	reg = <0x0 0x10300>;
-};
+#include "fvp-defs.dtsi"
+#include "fvp-base-gicv3-psci-common.dtsi"

fdts/fvp-base-gicv3-psci-aarch32-1t.dts

@@ -4,38 +4,12 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-/dts-v1/;
-
-#include "fvp-base-gicv3-psci-aarch32-common.dtsi"
-
-&CPU0 {
-	reg = <0x0>;
-};
-
-&CPU1 {
-	reg = <0x100>;
-};
+/* Configuration: max 4 clusters with up to 4 CPUs with 1 thread per each */
 
-&CPU2 {
-	reg = <0x200>;
-};
-
-&CPU3 {
-	reg = <0x300>;
-};
-
-&CPU4 {
-	reg = <0x10000>;
-};
-
-&CPU5 {
-	reg = <0x10100>;
-};
+/dts-v1/;
 
-&CPU6 {
-	reg = <0x10200>;
-};
+#define	AFF	00
+#define	REG_32
 
-&CPU7 {
-	reg = <0x10300>;
-};
+#include "fvp-defs.dtsi"
+#include "fvp-base-gicv3-psci-aarch32-common.dtsi"

fdts/fvp-base-gicv3-psci-aarch32-common.dtsi

@@ -40,37 +40,7 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu-map {
-			cluster0 {
-				core0 {
-					cpu = <&CPU0>;
-				};
-				core1 {
-					cpu = <&CPU1>;
-				};
-				core2 {
-					cpu = <&CPU2>;
-				};
-				core3 {
-					cpu = <&CPU3>;
-				};
-			};
-
-			cluster1 {
-				core0 {
-					cpu = <&CPU4>;
-				};
-				core1 {
-					cpu = <&CPU5>;
-				};
-				core2 {
-					cpu = <&CPU6>;
-				};
-				core3 {
-					cpu = <&CPU7>;
-				};
-			};
-		};
+		CPU_MAP
 
 		idle-states {
 			entry-method = "arm,psci";
@@ -94,77 +64,7 @@
 			};
 		};
 
-		CPU0:cpu@0 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU1:cpu@1 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x1>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU2:cpu@2 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x2>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU3:cpu@3 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x3>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU4:cpu@100 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x100>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU5:cpu@101 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x101>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU6:cpu@102 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x102>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU7:cpu@103 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x103>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
+		CPUS
 
 		L2_0: l2-cache0 {
 			compatible = "cache";

fdts/fvp-base-gicv3-psci-aarch32.dts

@@ -4,6 +4,12 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+/* Configuration: max 4 clusters with up to 4 CPUs */
+
 /dts-v1/;
 
+#define	REG_32
+#define	AFF
+
+#include "fvp-defs.dtsi"
 #include "fvp-base-gicv3-psci-aarch32-common.dtsi"

fdts/fvp-base-gicv3-psci-common.dtsi

@@ -66,37 +66,7 @@
 		#address-cells = <2>;
 		#size-cells = <0>;
 
-		CPU_MAP:cpu-map {
-			cluster0 {
-				core0 {
-					cpu = <&CPU0>;
-				};
-				core1 {
-					cpu = <&CPU1>;
-				};
-				core2 {
-					cpu = <&CPU2>;
-				};
-				core3 {
-					cpu = <&CPU3>;
-				};
-			};
-
-			cluster1 {
-				core0 {
-					cpu = <&CPU4>;
-				};
-				core1 {
-					cpu = <&CPU5>;
-				};
-				core2 {
-					cpu = <&CPU6>;
-				};
-				core3 {
-					cpu = <&CPU7>;
-				};
-			};
-		};
+		CPU_MAP
 
 		idle-states {
 			entry-method = "arm,psci";
@@ -120,77 +90,7 @@
 			};
 		};
 
-		CPU0:cpu@0 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x0>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU1:cpu@1 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x1>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU2:cpu@2 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x2>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU3:cpu@3 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x3>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU4:cpu@100 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x100>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU5:cpu@101 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x101>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU6:cpu@102 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x102>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU7:cpu@103 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x103>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
+		CPUS
 
 		L2_0: l2-cache0 {
 			compatible = "cache";

fdts/fvp-base-gicv3-psci-dynamiq-2t.dts

@@ -4,185 +4,15 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-/dts-v1/;
-
-#include "fvp-base-gicv3-psci-dynamiq-common.dtsi"
-
-&CPU_MAP {
-	/delete-node/ cluster0;
-
-	cluster0 {
-		core0 {
-			thread0 {
-				cpu = <&CPU0>;
-			};
-			thread1 {
-				cpu = <&CPU1>;
-			};
-		};
-		core1 {
-			thread0 {
-				cpu = <&CPU2>;
-			};
-			thread1 {
-				cpu = <&CPU3>;
-			};
-		};
-		core2 {
-			thread0 {
-				cpu = <&CPU4>;
-			};
-			thread1 {
-				cpu = <&CPU5>;
-			};
-		};
-		core3 {
-			thread0 {
-				cpu = <&CPU6>;
-			};
-			thread1 {
-				cpu = <&CPU7>;
-			};
-		};
-		core4 {
-			thread0 {
-				cpu = <&CPU8>;
-			};
-			thread1 {
-				cpu = <&CPU9>;
-			};
-		};
-		core5 {
-			thread0 {
-				cpu = <&CPU10>;
-			};
-			thread1 {
-				cpu = <&CPU11>;
-			};
-		};
-		core6 {
-			thread0 {
-				cpu = <&CPU12>;
-			};
-			thread1 {
-				cpu = <&CPU13>;
-			};
-		};
-		core7 {
-			thread0 {
-				cpu = <&CPU14>;
-			};
-			thread1 {
-				cpu = <&CPU15>;
-			};
-		};
-	};
-};
-
-/ {
-	cpus {
-		CPU0:cpu@0 {
-			reg = <0x0 0x0>;
-		};
-
-		CPU1:cpu@1 {
-			reg = <0x0 0x1>;
-		};
-
-		CPU2:cpu@2 {
-			reg = <0x0 0x100>;
-		};
-
-		CPU3:cpu@3 {
-			reg = <0x0 0x101>;
-		};
-
-		CPU4:cpu@100 {
-			reg = <0x0 0x200>;
-		};
+/* DynamIQ configuration: 1 cluster with up to 8 CPUs with 2 threads per each */
 
-		CPU5:cpu@101 {
-			reg = <0x0 0x201>;
-		};
+/* Set default value if not passed from platform's makefile */
+#ifdef	FVP_MAX_PE_PER_CPU
+#define	PE_PER_CPU		FVP_MAX_PE_PER_CPU
+#else
+#define	PE_PER_CPU		2
+#endif
 
-		CPU6:cpu@102 {
-			reg = <0x0 0x300>;
-		};
-
-		CPU7:cpu@103 {
-			reg = <0x0 0x301>;
-		};
-
-		CPU8:cpu@200 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x400>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU9:cpu@201 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x401>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU10:cpu@202 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x500>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU11:cpu@203 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x501>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU12:cpu@300 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x600>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU13:cpu@301 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x601>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU14:cpu@302 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x700>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
+/dts-v1/;
 
-		CPU15:cpu@303 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x701>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-	};
-};
+#include "fvp-base-gicv3-psci-dynamiq-common.dtsi"

fdts/fvp-base-gicv3-psci-dynamiq-common.dtsi

@@ -6,38 +6,5 @@
 
 /dts-v1/;
 
+#include "fvp-defs-dynamiq.dtsi"
 #include "fvp-base-gicv3-psci-common.dtsi"
-
-/* DynamIQ based designs have upto 8 CPUs in each cluster */
-
-&CPU_MAP {
-	/delete-node/ cluster0;
-	/delete-node/ cluster1;
-
-	cluster0 {
-		core0 {
-			cpu = <&CPU0>;
-		};
-		core1 {
-			cpu = <&CPU1>;
-		};
-		core2 {
-			cpu = <&CPU2>;
-		};
-		core3 {
-			cpu = <&CPU3>;
-		};
-		core4 {
-			cpu = <&CPU4>;
-		};
-		core5 {
-			cpu = <&CPU5>;
-		};
-		core6 {
-			cpu = <&CPU6>;
-		};
-		core7 {
-			cpu = <&CPU7>;
-		};
-	};
-};

fdts/fvp-base-gicv3-psci-dynamiq.dts

@@ -4,38 +4,15 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-/dts-v1/;
-
-#include "fvp-base-gicv3-psci-dynamiq-common.dtsi"
-
-&CPU0 {
-	reg = <0x0 0x0>;
-};
-
-&CPU1 {
-	reg = <0x0 0x100>;
-};
+/* DynamIQ configuration: 1 cluster with up to 8 CPUs */
 
-&CPU2 {
-	reg = <0x0 0x200>;
-};
+/* Set default value if not passed from platform's makefile */
+#ifdef	FVP_MAX_PE_PER_CPU
+#define	PE_PER_CPU		FVP_MAX_PE_PER_CPU
+#else
+#define	PE_PER_CPU		1
+#endif
 
-&CPU3 {
-	reg = <0x0 0x300>;
-};
-
-&CPU4 {
-	reg = <0x0 0x400>;
-};
-
-&CPU5 {
-	reg = <0x0 0x500>;
-};
-
-&CPU6 {
-	reg = <0x0 0x600>;
-};
+/dts-v1/;
 
-&CPU7 {
-	reg = <0x0 0x700>;
-};
+#include "fvp-base-gicv3-psci-dynamiq-common.dtsi"

fdts/fvp-base-gicv3-psci.dts

@@ -4,6 +4,11 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+/* Configuration: max 4 clusters with up to 4 CPUs */
+
 /dts-v1/;
 
+#define	AFF
+
+#include "fvp-defs.dtsi"
 #include "fvp-base-gicv3-psci-common.dtsi"

fdts/fvp-defs-dynamiq.dtsi

+/*
+ * Copyright (c) 2020, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef	FVP_DEFS_DYNAMIQ_DTSI
+#define	FVP_DEFS_DYNAMIQ_DTSI
+
+/* Set default topology values if not passed from platform's makefile */
+#ifdef	FVP_CLUSTER_COUNT
+#define	CLUSTER_COUNT		FVP_CLUSTER_COUNT
+#else
+#define	CLUSTER_COUNT		1
+#endif
+
+#ifdef FVP_MAX_CPUS_PER_CLUSTER
+#define	CPUS_PER_CLUSTER	FVP_MAX_CPUS_PER_CLUSTER
+#else
+#define	CPUS_PER_CLUSTER	8
+#endif
+
+#define CONCAT(x, y)	x##y
+#define CONC(x, y)	CONCAT(x, y)
+
+/*
+ * n - CPU number
+ * r - MPID
+ */
+#define	CPU(n, r)			\
+	CPU##n:cpu@r## {		\
+	device_type = "cpu";		\
+	compatible = "arm,armv8";	\
+	reg = <0x0 0x##r>;		\
+	enable-method = "psci";		\
+	cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;	\
+	next-level-cache = <&L2_0>;	\
+	};
+
+#if (PE_PER_CPU == 2)
+#define THREAD(n)		\
+	thread##n {		\
+		cpu = <&CONC(CPU, __COUNTER__)>;	\
+	};
+
+#define	CORE(n)			\
+	core##n {		\
+		THREAD(0)	\
+		THREAD(1)	\
+	};
+
+#else	/* PE_PER_CPU == 1 */
+#define	CORE(n)			\
+	core##n {		\
+		cpu = <&CPU##n>;\
+	};
+#endif	/* PE_PER_CORE */
+
+#if (CPUS_PER_CLUSTER == 1)
+#if (PE_PER_CPU == 1)
+#define	CPUS		\
+	CPU(0, 0)
+#else
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 1)
+#endif
+#define	CLUSTER(n)	\
+	cluster##n {	\
+		CORE(0)	\
+	};
+
+#elif (CPUS_PER_CLUSTER == 2)
+#if (PE_PER_CPU == 1)
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 100)
+#else
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 1)	\
+	CPU(2, 100)	\
+	CPU(3, 101)
+#endif
+#define	CLUSTER(n)	\
+	cluster##n {	\
+		CORE(0)	\
+		CORE(1)	\
+	};
+
+#elif (CPUS_PER_CLUSTER == 3)
+#if (PE_PER_CPU == 1)
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 100)	\
+	CPU(2, 200)
+#else
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 1)	\
+	CPU(2, 100)	\
+	CPU(3, 101)	\
+	CPU(4, 200)	\
+	CPU(5, 201)
+#endif
+#define	CLUSTER(n)	\
+	cluster##n {	\
+		CORE(0)	\
+		CORE(1)	\
+		CORE(2)	\
+	};
+
+#elif (CPUS_PER_CLUSTER == 4)
+#if (PE_PER_CPU == 1)
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 100)	\
+	CPU(2, 200)	\
+	CPU(3, 300)
+#else
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 1)	\
+	CPU(2, 100)	\
+	CPU(3, 101)	\
+	CPU(4, 200)	\
+	CPU(5, 201)	\
+	CPU(6, 300)	\
+	CPU(7, 301)
+#endif
+#define	CLUSTER(n)	\
+	cluster##n {	\
+		CORE(0)	\
+		CORE(1)	\
+		CORE(2)	\
+		CORE(3)	\
+	};
+
+#elif (CPUS_PER_CLUSTER == 5)
+#if (PE_PER_CPU == 1)
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 100)	\
+	CPU(2, 200)	\
+	CPU(3, 300)	\
+	CPU(4, 400)
+#else
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 1)	\
+	CPU(2, 100)	\
+	CPU(3, 101)	\
+	CPU(4, 200)	\
+	CPU(5, 201)	\
+	CPU(6, 300)	\
+	CPU(7, 301)	\
+	CPU(8, 400)	\
+	CPU(9, 401)
+#endif
+#define	CLUSTER(n)	\
+	cluster##n {	\
+		CORE(0)	\
+		CORE(1)	\
+		CORE(2)	\
+		CORE(3)	\
+		CORE(4)	\
+	};
+
+#elif (CPUS_PER_CLUSTER == 6)
+#if (PE_PER_CPU == 1)
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 100)	\
+	CPU(2, 200)	\
+	CPU(3, 300)	\
+	CPU(4, 400)	\
+	CPU(5, 500)
+#else
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 1)	\
+	CPU(2, 100)	\
+	CPU(3, 101)	\
+	CPU(4, 200)	\
+	CPU(5, 201)	\
+	CPU(6, 300)	\
+	CPU(7, 301)	\
+	CPU(8, 400)	\
+	CPU(9, 401)	\
+	CPU(10, 500)	\
+	CPU(11, 501)
+#endif
+#define	CLUSTER(n)	\
+	cluster##n {	\
+		CORE(0)	\
+		CORE(1)	\
+		CORE(2)	\
+		CORE(3)	\
+		CORE(4)	\
+		CORE(5)	\
+	};
+
+#elif (CPUS_PER_CLUSTER == 7)
+#if (PE_PER_CPU == 1)
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 100)	\
+	CPU(2, 200)	\
+	CPU(3, 300)	\
+	CPU(4, 400)	\
+	CPU(5, 500)	\
+	CPU(6, 600)
+#else
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 1)	\
+	CPU(2, 100)	\
+	CPU(3, 101)	\
+	CPU(4, 200)	\
+	CPU(5, 201)	\
+	CPU(6, 300)	\
+	CPU(7, 301)	\
+	CPU(8, 400)	\
+	CPU(9, 401)	\
+	CPU(10, 500)	\
+	CPU(11, 501)	\
+	CPU(12, 600)	\
+	CPU(13, 601)
+#endif
+#define	CLUSTER(n)	\
+	cluster##n {	\
+		CORE(0)	\
+		CORE(1)	\
+		CORE(2)	\
+		CORE(3)	\
+		CORE(4)	\
+		CORE(5)	\
+		CORE(6)	\
+	};
+
+#else
+#if (PE_PER_CPU == 1)
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 100)	\
+	CPU(2, 200)	\
+	CPU(3, 300)	\
+	CPU(4, 400)	\
+	CPU(5, 500)	\
+	CPU(6, 600)	\
+	CPU(7, 700)
+#else
+#define	CPUS		\
+	CPU(0, 0)	\
+	CPU(1, 1)	\
+	CPU(2, 100)	\
+	CPU(3, 101)	\
+	CPU(4, 200)	\
+	CPU(5, 201)	\
+	CPU(6, 300)	\
+	CPU(7, 301)	\
+	CPU(8, 400)	\
+	CPU(9, 401)	\
+	CPU(10, 500)	\
+	CPU(11, 501)	\
+	CPU(12, 600)	\
+	CPU(13, 601)	\
+	CPU(14, 700)	\
+	CPU(15, 701)
+#endif
+#define	CLUSTER(n)	\
+	cluster##n {	\
+		CORE(0)	\
+		CORE(1)	\
+		CORE(2)	\
+		CORE(3)	\
+		CORE(4)	\
+		CORE(5)	\
+		CORE(6)	\
+		CORE(7)	\
+	};
+#endif	/* CPUS_PER_CLUSTER */
+
+#define	CPU_MAP			\
+	cpu-map {		\
+		CLUSTER(0)	\
+	};
+
+#endif	/* FVP_DEFS_DYNAMIQ_DTSI */

fdts/fvp-defs.dtsi

+/*
+ * Copyright (c) 2020, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef	FVP_DEFS_DTSI
+#define	FVP_DEFS_DTSI
+
+/* Set default topology values if not passed from platform's makefile */
+#ifndef	CLUSTER_COUNT
+#ifdef	FVP_CLUSTER_COUNT
+#define	CLUSTER_COUNT		FVP_CLUSTER_COUNT
+#else
+#define	CLUSTER_COUNT		2
+#endif
+#endif	/* CLUSTER_COUNT */
+
+#ifndef CPUS_PER_CLUSTER
+#ifdef FVP_MAX_CPUS_PER_CLUSTER
+#define	CPUS_PER_CLUSTER	FVP_MAX_CPUS_PER_CLUSTER
+#else
+#define	CPUS_PER_CLUSTER	4
+#endif
+#endif	/* CPUS_PER_CLUSTER */
+
+/* Get platform's topology */
+#define	CPUS_COUNT		(CLUSTER_COUNT * CPUS_PER_CLUSTER)
+
+#define CONCAT(x, y)	x##y
+#define CONC(x, y)	CONCAT(x, y)
+
+/* CPU's cluster */
+#define	CLS(n)	(n / CPUS_PER_CLUSTER)
+
+/* CPU's position in cluster */
+#define	POS(n)	(n % CPUS_PER_CLUSTER)
+
+#define	ADR(n, c, p)	\
+	CPU##n:cpu@CONC(c, CONC(p, AFF)) {
+
+#define	PRE			\
+	device_type = "cpu";	\
+	compatible = "arm,armv8";
+
+#ifdef	REG_32
+/* 32-bit address */
+#define	REG(c, p)	\
+	reg = <CONC(0x, CONC(c, CONC(p, AFF)))>;
+#else
+/* 64-bit address */
+#define	REG(c, p)	\
+	reg = <0x0 CONC(0x, CONC(c, CONC(p, AFF)))>;
+#endif	/* REG_32 */
+
+#define	POST				\
+	enable-method = "psci";		\
+	cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;	\
+	next-level-cache = <&L2_0>;	\
+	};
+
+#ifdef	REG_32
+#define	CPU_0		\
+	CPU0:cpu@0 {	\
+	PRE		\
+	reg = <0x0>;	\
+	POST
+#else
+#define	CPU_0		\
+	CPU0:cpu@0 {	\
+	PRE		\
+	reg = <0x0 0x0>;\
+	POST
+#endif	/* REG_32 */
+
+/*
+ * n - CPU number
+ */
+#define	CPU(n, c, p)	\
+	ADR(n, c, p)	\
+	PRE		\
+	REG(c, p)	\
+	POST
+
+/* 2 CPUs */
+#if (CPUS_COUNT > 1)
+#if (CLS(1) == 0)
+#define c1
+#define	p1	1
+#else
+#define	c1	10
+#define p1	0
+#endif
+
+#define	CPU_1	CPU(1, c1, p1)	/* CPU1: 0.1; 1.0 */
+
+/* 3 CPUs */
+#if (CPUS_COUNT > 2)
+#if (CLS(2) == 0)
+#define c2
+#define p2	2
+#elif (CLS(2) == 1)
+#define	c2	10
+#define p2	0
+#else
+#define	c2	20
+#define p2	0
+#endif
+
+#define	CPU_2	CPU(2, c2, p2)	/* CPU2: 0.2; 1.0; 2.0 */
+
+/* 4 CPUs */
+#if (CPUS_COUNT > 3)
+#if (CLS(3) == 0)
+#define c3
+#elif (CLS(3) == 1)
+#define	c3	10
+#else
+#define	c3	30
+#endif
+
+#if (POS(3) == 0)
+#define p3	0
+#elif (POS(3) == 1)
+#define	p3	1
+#else
+#define	p3	3
+#endif
+
+#define	CPU_3	CPU(3, c3, p3)	/* CPU3: 0.3; 1.0; 1.1; 3.0 */
+
+/* 6 CPUs */
+#if (CPUS_COUNT > 4)
+#if (CLS(4) == 1)
+#define	c4	10
+#else
+#define	c4	20
+#endif
+
+#if (POS(4) == 0)
+#define p4	0
+#else
+#define	p4	1
+#endif
+
+#if (CLS(5) == 1)
+#define	c5	10
+#else
+#define	c5	20
+#endif
+
+#if (POS(5) == 1)
+#define	p5	1
+#else
+#define	p5	2
+#endif
+
+#define	CPU_4	CPU(4, c4, p4)	/* CPU4: 1.0; 1.1; 2.0 */
+#define	CPU_5	CPU(5, c5, p5)	/* CPU5: 1.1; 1.2; 2.1 */
+
+/* 8 CPUs */
+#if (CPUS_COUNT > 6)
+#if (CLS(6) == 1)
+#define	c6	10
+#define	p6	2
+#elif (CLS(6) == 2)
+#define	c6	20
+#define	p6	0
+#else
+#define	c6	30
+#define	p6	0
+#endif
+
+#if (CLS(7) == 1)
+#define	c7	10
+#define	p7	3
+#elif (CLS(7) == 2)
+#define	c7	20
+#define	p7	1
+#else
+#define	c7	30
+#define	p7	1
+#endif
+
+#define	CPU_6	CPU(6, c6, p6)	/* CPU6: 1.2; 2.0; 3.0 */
+#define	CPU_7	CPU(7, c7, p7)	/* CPU7: 1.3; 2.1; 3.1 */
+
+/* 9 CPUs */
+#if (CPUS_COUNT > 8)
+#if (POS(8) == 0)
+#define	p8	0
+#else
+#define	p8	2
+#endif
+
+#define	CPU_8	CPU(8, 20, p8)	/* CPU8: 2.0; 2.2 */
+
+/* 12 CPUs */
+#if (CPUS_COUNT > 9)
+#if (CLS(9) == 2)
+#define	c9	20
+#define	p9	1
+#else
+#define	c9	30
+#define	p9	0
+#endif
+
+#if (CLS(10) == 2)
+#define	c10	20
+#define	p10	2
+#else
+#define	c10	30
+#define	p10	1
+#endif
+
+#if (CLS(11) == 2)
+#define	c11	20
+#define	p11	3
+#else
+#define	c11	30
+#define	p11	2
+#endif
+
+#define	CPU_9	CPU(9, c9, p9)		/* CPU9:  2.1; 3.0 */
+#define	CPU_10	CPU(10, c10, p10)	/* CPU10: 2.2; 3.1 */
+#define	CPU_11	CPU(11, c11, p11)	/* CPU11: 2.3; 3.2 */
+
+/* 16 CPUs */
+#if (CPUS_COUNT > 12)
+#define	CPU_12	CPU(12, 30, 0)		/* CPU12: 3.0 */
+#define	CPU_13	CPU(13, 30, 1)		/* CPU13: 3.1 */
+#define	CPU_14	CPU(14, 30, 2)		/* CPU14: 3.2 */
+#define	CPU_15	CPU(15, 30, 3)		/* CPU15: 3.3 */
+#endif	/* > 12 */
+#endif	/* > 9 */
+#endif	/* > 8 */
+#endif	/* > 6 */
+#endif	/* > 4 */
+#endif	/* > 3 */
+#endif	/* > 2 */
+#endif	/* > 1 */
+
+#if (CPUS_COUNT == 1)
+#define	CPUS	\
+	CPU_0
+
+#elif (CPUS_COUNT == 2)
+#define	CPUS	\
+	CPU_0	\
+	CPU_1
+
+#elif (CPUS_COUNT == 3)
+#define	CPUS	\
+	CPU_0	\
+	CPU_1	\
+	CPU_2
+
+#elif (CPUS_COUNT == 4)
+#define	CPUS	\
+	CPU_0	\
+	CPU_1	\
+	CPU_2	\
+	CPU_3
+
+#elif (CPUS_COUNT == 6)
+#define	CPUS	\
+	CPU_0	\
+	CPU_1	\
+	CPU_2	\
+	CPU_3	\
+	CPU_4	\
+	CPU_5
+
+#elif (CPUS_COUNT == 8)
+#define	CPUS	\
+	CPU_0	\
+	CPU_1	\
+	CPU_2	\
+	CPU_3	\
+	CPU_4	\
+	CPU_5	\
+	CPU_6	\
+	CPU_7
+
+#elif (CPUS_COUNT == 9)
+#define	CPUS	\
+	CPU_0	\
+	CPU_1	\
+	CPU_2	\
+	CPU_3	\
+	CPU_4	\
+	CPU_5	\
+	CPU_6	\
+	CPU_7	\
+	CPU_8
+
+#elif (CPUS_COUNT == 12)
+#define	CPUS	\
+	CPU_0	\
+	CPU_1	\
+	CPU_2	\
+	CPU_3	\
+	CPU_4	\
+	CPU_5	\
+	CPU_6	\
+	CPU_7	\
+	CPU_8	\
+	CPU_9	\
+	CPU_10	\
+	CPU_11
+
+#else
+#define	CPUS	\
+	CPU_0	\
+	CPU_1	\
+	CPU_2	\
+	CPU_3	\
+	CPU_4	\
+	CPU_5	\
+	CPU_6	\
+	CPU_7	\
+	CPU_8	\
+	CPU_9	\
+	CPU_10	\
+	CPU_11	\
+	CPU_12	\
+	CPU_13	\
+	CPU_14	\
+	CPU_15
+#endif	/* CPUS_COUNT */
+
+#define	CORE(n)		\
+	core##n {	\
+		cpu = <&CONC(CPU, __COUNTER__)>;	\
+	};
+
+/* Max 4 CPUs per cluster */
+#if (CPUS_PER_CLUSTER == 1)
+#define	CLUSTER(n)		\
+	cluster##n {		\
+		CORE(0)		\
+	};
+#elif (CPUS_PER_CLUSTER == 2)
+#define	CLUSTER(n)		\
+	cluster##n {		\
+		CORE(0)		\
+		CORE(1)		\
+	};
+
+#elif (CPUS_PER_CLUSTER == 3)
+#define	CLUSTER(n)		\
+	cluster##n {		\
+		CORE(0)		\
+		CORE(1)		\
+		CORE(2)		\
+	};
+
+#else
+#define	CLUSTER(n)		\
+	cluster##n {		\
+		CORE(0)		\
+		CORE(1)		\
+		CORE(2)		\
+		CORE(3)		\
+	};
+#endif	/* CPUS_PER_CLUSTER */
+
+/* Max 4 clusters */
+#if (CLUSTER_COUNT == 1)
+#define	CPU_MAP			\
+	cpu-map {		\
+		CLUSTER(0)	\
+	};
+
+#elif (CLUSTER_COUNT == 2)
+#define	CPU_MAP			\
+	cpu-map {		\
+		CLUSTER(0)	\
+		CLUSTER(1)	\
+	};
+
+#elif (CLUSTER_COUNT == 3)
+#define	CPU_MAP			\
+	cpu-map {		\
+		CLUSTER(0)	\
+		CLUSTER(1)	\
+		CLUSTER(2)	\
+	};
+
+#else
+#define	CPU_MAP			\
+	cpu-map {		\
+		CLUSTER(0)	\
+		CLUSTER(1)	\
+		CLUSTER(2)	\
+		CLUSTER(3)	\
+	};
+#endif	/* CLUSTER_COUNT */
+
+#endif	/* FVP_DEFS_DTSI */

fdts/fvp-foundation-gicv2-psci.dts

@@ -4,8 +4,15 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+/* Configuration: 1 cluster with up to 4 CPUs */
+
 /dts-v1/;
 
+#define	AFF
+#define	CLUSTER_COUNT	1
+
+#include "fvp-defs.dtsi"
+
 /memreserve/ 0x80000000 0x00010000;
 
 / {
@@ -42,22 +49,7 @@
 		#address-cells = <2>;
 		#size-cells = <0>;
 
-		cpu-map {
-			cluster0 {
-				core0 {
-					cpu = <&CPU0>;
-				};
-				core1 {
-					cpu = <&CPU1>;
-				};
-				core2 {
-					cpu = <&CPU2>;
-				};
-				core3 {
-					cpu = <&CPU3>;
-				};
-			};
-		};
+		CPU_MAP
 
 		idle-states {
 			entry-method = "arm,psci";
@@ -81,41 +73,7 @@
 			};
 		};
 
-		CPU0:cpu@0 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x0>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU1:cpu@1 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x1>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU2:cpu@2 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x2>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU3:cpu@3 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x3>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
+		CPUS
 
 		L2_0: l2-cache0 {
 			compatible = "cache";

fdts/fvp-foundation-gicv3-psci.dts

@@ -4,8 +4,15 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+/* Configuration: 1 cluster with up to 4 CPUs */
+
 /dts-v1/;
 
+#define	AFF
+#define	CLUSTER_COUNT	1
+
+#include "fvp-defs.dtsi"
+
 /memreserve/ 0x80000000 0x00010000;
 
 / {
@@ -42,22 +49,7 @@
 		#address-cells = <2>;
 		#size-cells = <0>;
 
-		cpu-map {
-			cluster0 {
-				core0 {
-					cpu = <&CPU0>;
-				};
-				core1 {
-					cpu = <&CPU1>;
-				};
-				core2 {
-					cpu = <&CPU2>;
-				};
-				core3 {
-					cpu = <&CPU3>;
-				};
-			};
-		};
+		CPU_MAP
 
 		idle-states {
 			entry-method = "arm,psci";
@@ -81,41 +73,7 @@
 			};
 		};
 
-		CPU0:cpu@0 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x0>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU1:cpu@1 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x1>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU2:cpu@2 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x2>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
-
-		CPU3:cpu@3 {
-			device_type = "cpu";
-			compatible = "arm,armv8";
-			reg = <0x0 0x3>;
-			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
-			next-level-cache = <&L2_0>;
-		};
+		CPUS
 
 		L2_0: l2-cache0 {
 			compatible = "cache";