Freescale has no Android port for the i.MX233 processor and no plans to make it. The main reason is that this processor seems to have not enough performance to provide convenient operation of Android OS on it. The main Android-targeted members of the i.MX processors family are now i.MX51, i.MX53, and i,MX6.
Please look at link below for supported BSPs (Linux, WinCE)
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX23_SW