The Image Header is an array of structures containing information related to each image, such as an ELF file, bitstream, data files, and so forth. Each image can have multiple partitions; for example, an ELF can have multiple loadable sections, each of which forms a partition in the boot image. The table also contains the information of number of partitions related to an image. The following table provides the address offsets, parameters, and descriptions for the AMD Zynq™ 7000 SoC device.
Address Offset | Parameter | Description |
---|---|---|
0x00 | Next Image Header | Link to next Image Header. 0 if last Image Header (word offset). |
0x04 | Corresponding partition header | Link to first associated Partition Header (word offset). |
0x08 | Reserved | Always 0. |
0x0C | Partition Count Length | Number of partitions associated with this image. |
0x10 to N | Image Name | Packed in big endian order. To reconstruct the string, unpack 4 bytes
at a time, reverse the order, and concatenate. For example, the string
“FSBL10.ELF ” is packed as 0x10: ‘L’,’B’,’S’,’F’, 0x14: ’E’,’.’,’0’,’1’, 0x18:
’\0’,’\0’,’F’,’L’ .The packed image name is a multiple of 4 bytes. |
N | String Terminator |
0x00000000
|
N+4 | Reserved | Defaults to 0xFFFFFFFF to 64 bytes boundary. |