William,
The BSL/GEL files are available on the Logic PD OMAP-L138 SOM-M1 support website for customers who have registered their kit. You can also click here to download them if you have registered your kit.
Follow these steps for creating an account and registering your kit.
1. Click here to create an account.
2. Click here to register your product.
This webpage will help you identify your part number and serial number.