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Example BIF file for BOOT.bin, FPGA bitstream is clearly visible as second file. This is how SDK wizard does it by default, this order should not be changed. As 3rd file is normally second stage bootloader (u-boot). For boot file for SD Card, this all that goes into BOOT.bin, the remaining files will be copied to SD card. For SPI Flash images linux image should be added as well as last file, with correct offset (it must match the offset u-boot is expecting it).

Image Added

Petalinux default size for boot partition is 0x50_0000 and 0x2_0000 for Flash environment, hence the offset for image.ub in the BOOT.bin for SPI Flash should be set to 0x520000.

Boot from SD Card

If there is doubt that booting from SD card is failing, then as first step a special BOOT.bin should be used to verify the that Zynq Bootrom can load the boot code from SC Card at all. This special image does not use or initialize any PS peripherals including external DDR memory, it also does not attempt to configure the PL portion. The image simply Blinks a LED connected to some MIO pin. The same image can be used on any Zynq device, if the SD boot process succeeds at all then code in the image will be executing.