Attached is a zip file that contains the Xilflash library with the changes necessary to make the newer Spansion flashes work. To use the zip:
1. Download the zip file
xilflash_v2_01_a.zip2. Create a sw_services directory in your project directory
3. Unzip the contents of xilflash_v2_01_a.zip into this directory
4. You can now select the new xilflash library in Software > Software Plaform Settings
This new library is standard in 12.2.