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Thank you for contacting Cypress Semiconductor.
I would like to inform you that S25FL-L family of devices are officially approved and supported on Xilinx Zynq 7000 in latest Vivado suite.
FL-L is a newer device as compared to FL-S family. If you are planning to migrate to FL-S only because of compatibility issue then it might not be required.
However, if you still wish to migrate, I would request you to refer to this application note that compares the features of FL-L and FL-S devices - https://www.cypress.com/file/334026/download
Please note that this guide is for migrating from FL-S to FL-L.
Please let me know if you have any further queries.
As per your previous query, "Our team is having difficulty with the latest Vivado suite in getting the S25FL-L device to work with the ZYNQ 7020. Is there a Xilinx contact with experience using ZYNQ and the S25FL256LAGNFM010 QSPI flash that can help us?"
I would like to inform you that the S25FL256L is not supported by the latest Vivado suite. The following KBA might be helpful for you - Using Cypress S25FL-L SPI Flash with Xilinx 7 Series FPGAs – KBA219685