6 files changed, 54 insertions, 7 deletions
diff --git a/plat/arm/board/fvp/fvp_common.c b/plat/arm/board/fvp/fvp_common.c
index 78782d43..eb67dab2 100644
--- a/plat/arm/board/fvp/fvp_common.c
+++ b/plat/arm/board/fvp/fvp_common.c
@@ -30,6 +30,7 @@
 
 #include <arm_config.h>
 #include <arm_def.h>
+#include <ccn.h>
 #include <debug.h>
 #include <gicv2.h>
 #include <mmio.h>
@@ -213,8 +214,16 @@ void fvp_config_setup(void)
 
 void fvp_interconnect_init(void)
 {
-	if (arm_config.flags & ARM_CONFIG_HAS_INTERCONNECT)
+	if (arm_config.flags & ARM_CONFIG_HAS_INTERCONNECT) {
+#if FVP_INTERCONNECT_DRIVER == FVP_CCN
+		if (ccn_get_part0_id(PLAT_ARM_CCN_BASE) != CCN_502_PART0_ID) {
+			ERROR("Unrecognized CCN variant detected. Only CCN-502"
+					" is supported");
+			panic();
+		}
+#endif
 		plat_arm_interconnect_init();
+	}
 }
 
 void fvp_interconnect_enable(void)
diff --git a/plat/arm/board/fvp/fvp_def.h b/plat/arm/board/fvp/fvp_def.h
index b0f07ef5..40d20fce 100644
--- a/plat/arm/board/fvp/fvp_def.h
+++ b/plat/arm/board/fvp/fvp_def.h
@@ -40,6 +40,10 @@
 
 #define FVP_PRIMARY_CPU			0x0
 
+/* Defines for the Interconnect build selection */
+#define FVP_CCI			1
+#define FVP_CCN			2
+
 /*******************************************************************************
  * FVP memory map related constants
  ******************************************************************************/
@@ -57,16 +61,23 @@
 #define DEVICE0_BASE			0x20000000
 #define DEVICE0_SIZE			0x0c200000
 
+/*
+ *  In case of FVP models with CCN, the CCN register space overlaps into
+ *  the NSRAM area.
+ */
+#if FVP_INTERCONNECT_DRIVER == FVP_CCN
+#define DEVICE1_BASE			0x2e000000
+#define DEVICE1_SIZE			0x1A00000
+#else
 #define DEVICE1_BASE			0x2f000000
 #define DEVICE1_SIZE			0x200000
-
+#define NSRAM_BASE			0x2e000000
+#define NSRAM_SIZE			0x10000
+#endif
 /* Devices in the second GB */
 #define DEVICE2_BASE			0x7fe00000
 #define DEVICE2_SIZE			0x00200000
 
-#define NSRAM_BASE			0x2e000000
-#define NSRAM_SIZE			0x10000
-
 #define PCIE_EXP_BASE			0x40000000
 #define TZRNG_BASE			0x7fe60000
 
diff --git a/plat/arm/board/fvp/include/plat_macros.S b/plat/arm/board/fvp/include/plat_macros.S
index e43c7acf..657a39b9 100644
--- a/plat/arm/board/fvp/include/plat_macros.S
+++ b/plat/arm/board/fvp/include/plat_macros.S
@@ -64,7 +64,9 @@ use_ve_mmap:
 	mov_imm	x16, VE_GICD_BASE
 print_gic_regs:
 	arm_print_gic_regs
+#if FVP_INTERCONNECT_DRIVER == FVP_CCI
 	print_cci_regs
+#endif
 	.endm
 
 #endif /* __PLAT_MACROS_S__ */
diff --git a/plat/arm/board/fvp/include/platform_def.h b/plat/arm/board/fvp/include/platform_def.h
index ca8e35e3..1e906d82 100644
--- a/plat/arm/board/fvp/include/platform_def.h
+++ b/plat/arm/board/fvp/include/platform_def.h
@@ -90,6 +90,10 @@
 #define PLAT_ARM_CCI_CLUSTER0_SL_IFACE_IX	3
 #define PLAT_ARM_CCI_CLUSTER1_SL_IFACE_IX	4
 
+/* CCN related constants. Only CCN 502 is currently supported */
+#define PLAT_ARM_CCN_BASE		0x2e000000
+#define PLAT_ARM_CLUSTER_TO_CCN_ID_MAP	1, 5, 7, 11
+
 /* System timer related constants */
 #define PLAT_ARM_NSTIMER_FRAME_ID		1
 
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index c0fe662e..6456cdea 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -39,11 +39,22 @@ $(eval $(call add_define,FVP_USE_SP804_TIMER))
 # The FVP platform depends on this macro to build with correct GIC driver.
 $(eval $(call add_define,FVP_USE_GIC_DRIVER))
 
-# If FVP_CLUSTER_COUNT has been defined, pass it into the build system.
-ifdef FVP_CLUSTER_COUNT
+# Define default FVP_CLUSTER_COUNT to 2 and pass it into the build system.
+FVP_CLUSTER_COUNT	:= 2
 $(eval $(call add_define,FVP_CLUSTER_COUNT))
+
+# Sanity check the cluster count and if FVP_CLUSTER_COUNT <= 2,
+# choose the CCI driver , else the CCN driver
+ifeq ($(FVP_CLUSTER_COUNT), 0)
+$(error "Incorrect cluster count specified for FVP port")
+else ifeq ($(FVP_CLUSTER_COUNT),$(filter $(FVP_CLUSTER_COUNT),1 2))
+FVP_INTERCONNECT_DRIVER := FVP_CCI
+else
+FVP_INTERCONNECT_DRIVER := FVP_CCN
 endif
 
+$(eval $(call add_define,FVP_INTERCONNECT_DRIVER))
+
 # Choose the GIC sources depending upon the how the FVP will be invoked
 ifeq (${FVP_USE_GIC_DRIVER}, FVP_GICV3)
 FVP_GIC_SOURCES		:=	drivers/arm/gic/common/gic_common.c	\
@@ -67,8 +78,15 @@ else
 $(error "Incorrect GIC driver chosen on FVP port")
 endif
 
+ifeq (${FVP_INTERCONNECT_DRIVER}, FVP_CCI)
 FVP_INTERCONNECT_SOURCES	:= 	drivers/arm/cci/cci.c		\
 					plat/arm/common/arm_cci.c
+else ifeq (${FVP_INTERCONNECT_DRIVER}, FVP_CCN)
+FVP_INTERCONNECT_SOURCES	:= 	drivers/arm/ccn/ccn.c		\
+					plat/arm/common/arm_ccn.c
+else
+$(error "Incorrect CCN driver chosen on FVP port")
+endif
 
 FVP_SECURITY_SOURCES	:=	drivers/arm/tzc/tzc400.c		\
 				plat/arm/board/fvp/fvp_security.c	\
diff --git a/plat/arm/common/arm_ccn.c b/plat/arm/common/arm_ccn.c
index 5cb443aa..fe10d7b5 100644
--- a/plat/arm/common/arm_ccn.c
+++ b/plat/arm/common/arm_ccn.c
@@ -43,6 +43,9 @@ static const ccn_desc_t arm_ccn_desc = {
 	.master_to_rn_id_map = master_to_rn_id_map
 };
 
+CASSERT(PLAT_ARM_CLUSTER_COUNT == ARRAY_SIZE(master_to_rn_id_map),
+		assert_invalid_cluster_count_for_ccn_variant);
+
 /******************************************************************************
  * The following functions are defined as weak to allow a platform to override
  * the way ARM CCN driver is initialised and used.