1. Preheat oven to 350 degrees. 2. In a bowl, combine berries, sugar and cornstarch. Place the mixture in a 9 in pie plate. Set aside. 3. In a separate bowl, combine flour, oats, brown sugar, sugar, cinnamon, salt and softened butter together. 4. Add the oat mixture onto the berries. 5. Bake for 35-40 minutes. Let sit for 10 minutes before cutting into.