I have generated an EF4 Model from a MySQL database and I have included both StoredProcedures and Tables.
I know how to make regular instert/update/fetch/delete oper
One way is to use the Database property off the DbContext:
SqlParameter param1 = new SqlParameter("@firstName", "Frank");
SqlParameter param2 = new SqlParameter("@lastName", "Borland");
context.Database.ExecuteSqlCommand("sp_MyStoredProc @firstName, @lastName",
param1, param2);
EF5 definitely supports that.