  We construct analytic solutions of Einstein gravity coupled to a dilaton
field with a potential given by a sum of two exponentials, by rewriting the
equations of motion in terms of an integrable Toda chain. These solutions can
be interpreted as domain walls interpolating between different asymptotics, and
as such they can have interesting applications in holography. In some cases, we
can construct a solution which interpolates between an AdS fixed point in the
UV limit and a hyperscaling violating boundary in the IR region. We also find
analytic black brane solutions at finite temperature. We discuss the properties
of the solutions and the interpretation in terms of RG flow.
