Do not enable CCI on Foundation FVP

- The Foundation FVP only has one cluster and does not have
  CCI.

Change-Id: If91e81ff72c52e448150089c4cfea3e4d6ae1232
diff --git a/plat/fvp/fvp_pm.c b/plat/fvp/fvp_pm.c
index 9621319..af8d1b3 100644
--- a/plat/fvp/fvp_pm.c
+++ b/plat/fvp/fvp_pm.c
@@ -111,7 +111,7 @@
 {
 	int rc = PSCI_E_SUCCESS;
 	unsigned int gicc_base, ectlr;
-	unsigned long cpu_setup;
+	unsigned long cpu_setup, cci_setup;
 
 	switch (afflvl) {
 	case MPIDR_AFFLVL1:
@@ -120,7 +120,10 @@
 			 * Disable coherency if this cluster is to be
 			 * turned off
 			 */
-			cci_disable_coherency(mpidr);
+			cci_setup = platform_get_cfgvar(CONFIG_HAS_CCI);
+			if (cci_setup) {
+				cci_disable_coherency(mpidr);
+			}
 
 			/*
 			 * Program the power controller to turn the
@@ -187,7 +190,7 @@
 {
 	int rc = PSCI_E_SUCCESS;
 	unsigned int gicc_base, ectlr;
-	unsigned long cpu_setup, linear_id;
+	unsigned long cpu_setup, cci_setup, linear_id;
 	mailbox *fvp_mboxes;
 
 	/* Cannot allow NS world to execute trusted firmware code */
@@ -203,7 +206,10 @@
 			 * Disable coherency if this cluster is to be
 			 * turned off
 			 */
-			cci_disable_coherency(mpidr);
+			cci_setup = platform_get_cfgvar(CONFIG_HAS_CCI);
+			if (cci_setup) {
+				cci_disable_coherency(mpidr);
+			}
 
 			/*
 			 * Program the power controller to turn the
@@ -270,7 +276,7 @@
 			  unsigned int state)
 {
 	int rc = PSCI_E_SUCCESS;
-	unsigned long linear_id, cpu_setup;
+	unsigned long linear_id, cpu_setup, cci_setup;
 	mailbox *fvp_mboxes;
 	unsigned int gicd_base, gicc_base, reg_val, ectlr;
 
@@ -278,8 +284,12 @@
 
 	case MPIDR_AFFLVL1:
 		/* Enable coherency if this cluster was off */
-		if (state == PSCI_STATE_OFF)
-			cci_enable_coherency(mpidr);
+		if (state == PSCI_STATE_OFF) {
+			cci_setup = platform_get_cfgvar(CONFIG_HAS_CCI);
+			if (cci_setup) {
+				cci_enable_coherency(mpidr);
+			}
+		}
 		break;
 
 	case MPIDR_AFFLVL0: