2 files changed, 32 insertions, 4 deletions

diff --git a/Documentation/devicetree/bindings/arm/coherency-fabric.txt b/Documentation/devicetree/bindings/arm/coherency-fabric.txt
index f0bfa37edfc6..dcd80d6e0471 100644
--- a/Documentation/devicetree/bindings/arm/coherency-fabric.txt
+++ b/Documentation/devicetree/bindings/arm/coherency-fabric.txt
@@ -1,6 +1,6 @@
 Coherency fabric
 ----------------
-Available on Marvell SOCs: Armada 370 and Armada XP
+Available on Marvell SOCs: Armada 370, Armada 375 and Armada XP
 
 Required properties:
 
@@ -9,11 +9,20 @@ Required properties:
  * "marvell,coherency-fabric", to be used for the coherency fabric of
    the Armada 370 and Armada XP.
 
+ * "marvell,armada-375-coherency-fabric", for the Armada 375 coherency
+   fabric.
+
 - reg: Should contain coherency fabric registers location and
-  length. First pair for the coherency fabric registers, second pair
-  for the per-CPU fabric registers registers.
+  length.
+
+ * For "marvell,coherency-fabric", the first pair for the coherency
+   fabric registers, second pair for the per-CPU fabric registers.
+
+ * For "marvell,armada-375-coherency-fabric", only one pair is needed
+   for the per-CPU fabric registers.
 
-Example:
+
+Examples:
 
 coherency-fabric@d0020200 {
         compatible = "marvell,coherency-fabric";
@@ -22,3 +31,8 @@ coherency-fabric@d0020200 {
 
 };
 
+coherency-fabric@21810 {
+        compatible = "marvell,armada-375-coherency-fabric";
+        reg = <0x21810 0x1c>;
+};
+
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index 862100f7c836..7ccaf87fd772 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -41,11 +41,14 @@ static void __iomem *coherency_cpu_base;
 enum {
         COHERENCY_FABRIC_TYPE_NONE,
         COHERENCY_FABRIC_TYPE_ARMADA_370_XP,
+        COHERENCY_FABRIC_TYPE_ARMADA_375,
 };
 
 static struct of_device_id of_coherency_table[] = {
         {.compatible = "marvell,coherency-fabric",
          .data = (void *) COHERENCY_FABRIC_TYPE_ARMADA_370_XP },
+        {.compatible = "marvell,armada-375-coherency-fabric",
+         .data = (void *) COHERENCY_FABRIC_TYPE_ARMADA_375 },
         { /* end of list */ },
 };
 
@@ -145,6 +148,11 @@ static void __init armada_370_coherency_init(struct device_node *np)
         set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0);
 }
 
+static void __init armada_375_coherency_init(struct device_node *np)
+{
+        coherency_cpu_base = of_iomap(np, 0);
+}
+
 static int coherency_type(void)
 {
         struct device_node *np;
@@ -158,6 +166,10 @@ static int coherency_type(void)
                 if (type == COHERENCY_FABRIC_TYPE_ARMADA_370_XP)
                         return type;
 
+                /* Armada 375 coherency works only on SMP */
+                else if (type == COHERENCY_FABRIC_TYPE_ARMADA_375 && is_smp())
+                        return type;
+
                 of_node_put(np);
         }
 
@@ -178,6 +190,8 @@ int __init coherency_init(void)
 
         if (type == COHERENCY_FABRIC_TYPE_ARMADA_370_XP)
                 armada_370_coherency_init(np);
+        else if (type == COHERENCY_FABRIC_TYPE_ARMADA_375)
+                armada_375_coherency_init(np);
 
         return 0;
 }