Reworked FPGA flow for multi board / flavor support

CyrilKoe commented 8 months ago

This PR goes with the MR 11

Changes :

Re-worked FPGA flow to support flavors as in Carfield. Vanilla flavor is standalone RTL only, while Block Design (bd) flavor uses Vivado to integrate more complex IPs (Ethernet). Currently, only Vanilla flow is supported and BD is a placeholder to avoid further large diffs.
Added Xilinx DRAM wrapper to connect different DDR controllers
Switched to an include-based device tree to support multiple boards/flavors of Cheshire
Updated CVA6-SDK pointer to boot on other boards (changes on the SPI flash driver of U-boot)
Added docs related to the new flow (to be verified)

CI status :

CyrilKoe commented 8 months ago

@paulsc96 removed VCU128 and sim folder. Todo align CI

CyrilKoe commented 7 months ago

@paulsc96 vcu128 removed, this PR should be merged if possible, CI passes, changing docs now

paulsc96 commented 7 months ago

Since #105 is converging, closing in favor of that (keeping the branch of course)

pulp-platform / cheshire