Boot Address Allocation
The following table shows the boot allocation for 16 M Flash.
| Offset | Length | Description |
|---|---|---|
| 0x0 | 0x80000 | SPL |
| 0xF0000 | 0x10000 | U-Boot environment variables |
| 0x100000 | 0x400000 | fw_payload.img (OpenSBI + U-Boot) |
| 0x600000 | 0x1000000 | Reseved |
The following table shows the boot allocation for SD Card or eMMC.
| Offset | Length | Description | Comment |
|---|---|---|---|
| 0x0 | 0x200 | GPT PMBR | 0x4: Backup address |
| 0x200 | 0x200 | GPT Header | |
| 0x400 | 0x1F_FC00 | Reserved | |
| 0x20_0000 | 0x20_0000 | SPL | Partition 1 |
| 0x40_0000 | 0x40_0000 | Fw_payload.img (OpenSBI + U-Boot) | Partition 2 |
| 0x80_0000 | 0x1240_0000 | Initramfs + UEnv.txt | Partition 3 |
| 0x12C0_0000 | End of disk | System rootfs | Partition 4 |