In a mixing bowl, combine the first five ingredients until smooth. Combine the flours, baking soda, salt and spices; add to the egg mixture and mix well. Stir in carrots and raisins. Pour into a 13-in. x 9-in. x 2-in. baking pan coated with nonstick cooking spray. Bake at 350 degrees F for 30-35 minutes or until a toothpick inserted near the center comes out clean. Cool on a wire rack.
For frosting, in a mixing bowl, beat the cream cheese, butter and vanilla until smooth. Beat in sugar. Frost the cake. Sprinkle with walnuts and coconut. Refrigerate.