Walton, 19, was on loan at Ipswich for the first half of the season.
He started 13 games for the Tractor Boys scoring 3 goals.
He began his career at Leeds Utd, scoring a goal against Cardiff City whilst at Elland Rd. Charlton picked him up for £500,000 in Julky 2006.
With an injury set to rule Riccy Scimeca out for a few weeks we are in need of a quality midfielder. Hopefully Simon can do that job.
