Use MySQL driver for BIP

A) Download the MySQL JDBC driver and register it with the application server where 
     BI Publisher is running.

Refer below :
 'Oracle® Fusion Middleware Configuring and Managing JDBC Data Sources for Oracle WebLogic Server 11g

http://docs.oracle.com/cd/E23943_01/web.1111/e13737/third_party_drivers.htm#g1054553

Section 'JDBC Drivers Installed with WebLogic Server'

B) See the following notes:

BI Publisher 11g Unable to Connect to TeraData Using TeraData JDBC Drivers
 (Doc ID 1431757.1)

How to Connect To MySQL Databases From BI Publisher Installed by 
OEM (Oracle Enterprise Manager) (Doc ID 1455099.1).