Modify Bitstream - 2022.1 English

$ petalinux-package --boot --fpga <FPGA bitstream> --fsbl <FSBL_ELF> --format DOWNLOAD.BIT

This generates download.bit in the <plnx-proj-root>images/linux/ directory. With the above command, it merges the fs-boot into the FPGA bitstream by mapping the ELF data onto the memory map information (MMI) for the block RAMs in the design. For detailed usage, see the --help option or see petalinux-package --boot.