diff --git a/mlir/include/mlir/Dialect/Tosa/IR/TosaOps.td b/mlir/include/mlir/Dialect/Tosa/IR/TosaOps.td
--- a/mlir/include/mlir/Dialect/Tosa/IR/TosaOps.td
+++ b/mlir/include/mlir/Dialect/Tosa/IR/TosaOps.td
@@ -1746,11 +1746,11 @@
   }];
 
   let arguments = (ins
-    Tosa_Tensor_Cast:$input
+    Tosa_Tensor_Plus_F64:$input
   );
 
   let results = (outs
-    Tosa_Tensor_Cast:$output
+    Tosa_Tensor_Plus_F64:$output
   );
 
   let hasFolder = 1;
@@ -1821,7 +1821,7 @@
   );
 
   let results = (outs
-    Tosa_Tensor:$output
+    Tosa_Tensor_Plus_F64:$output
   );
   let hasFolder = 1;
 }
diff --git a/mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td b/mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td
--- a/mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td
+++ b/mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td
@@ -95,9 +95,9 @@
 //===----------------------------------------------------------------------===//
 def Tosa_AnyNumber : AnyTypeOf<[Tosa_Int, Tosa_QuantizedInt, Tosa_Float],
                                "number">;
-// Add F64 type support for just for tosa::CastOp
-def Tosa_AnyNumber_Cast : AnyTypeOf<[Tosa_Int, Tosa_QuantizedInt, Tosa_Float, F64],
-                               "number_cast">;
+// Add F64 type support just for tosa::CastOp and tosa::ConstOp
+def Tosa_AnyNumber_Plus_F64 : AnyTypeOf<[Tosa_Int, Tosa_QuantizedInt, Tosa_Float, F64],
+                               "number_plus_f64">;
 
 //===----------------------------------------------------------------------===//
 // Tensor types
@@ -108,7 +108,7 @@
 
 // Either ranked or unranked tensor of TOSA supported element types.
 def Tosa_Tensor : TensorOf<[Tosa_AnyNumber]>;
-def Tosa_Tensor_Cast : TensorOf<[Tosa_AnyNumber_Cast]>;
+def Tosa_Tensor_Plus_F64 : TensorOf<[Tosa_AnyNumber_Plus_F64]>;
 // Must be ranked but no further constraints
 def Tosa_RankedTensor : RankedTensorOf<[Tosa_AnyNumber]>;
 
diff --git a/mlir/test/Dialect/Tosa/constant_folding.mlir b/mlir/test/Dialect/Tosa/constant_folding.mlir
--- a/mlir/test/Dialect/Tosa/constant_folding.mlir
+++ b/mlir/test/Dialect/Tosa/constant_folding.mlir
@@ -7,6 +7,13 @@
   return %0 : tensor<4xi32>
 }
 
+// CHECK-LABEL: func @test_const_i64
+func.func @test_const_i64(%arg0 : index) -> tensor<4xi64> {
+  // CHECK: "tosa.const"
+  %0 = "tosa.const"() {value = dense<[3, 0, 1, 2]> : tensor<4xi64>} : () -> tensor<4xi64>
+  return %0 : tensor<4xi64>
+}
+
 // CHECK-LABEL: func @try_fold_equal_with_unranked_tensor
 func.func @try_fold_equal_with_unranked_tensor(%arg0: tensor<4xi32>, %arg1: tensor<i32>) {
   // CHECK: "tosa.equal"