Hello,
For the LS1043AQDS reference design, I can provide you with the following resources:
1. The LS1043AQDS Reference Manual - This document contains detailed information about the architecture, bus protocols, memory map, and peripheral interfaces including the QSPI and IFC bus configurations you're working with.
2. Schematic Diagrams - These provide the circuit-level implementation details that would be helpful for debugging your board.
3. QorIQ LS1043A Reference Design Materials - These include the board design files, component datasheets, and implementation guidelines.
You can access these materials through the NXP website in the QorIQ processors documentation section. Specifically, look under the LS1043A product page where reference design materials are available for download.
If you have specific issues with the QSPI download or IFC bus implementation, I recommend also checking the LS1043A SoC Reference Manual which provides detailed register-level information for these interfaces.
Regards