Visible to Intel only — GUID: gic1540272350810
Ixiasoft
Visible to Intel only — GUID: gic1540272350810
Ixiasoft
5.3.2. U-Boot RSU Commands
U-Boot offers the rsu command, with a full set of options for managing the RSU, similar with the functionality offered by the RSU client.
- list
- update
- dtb
- Queries the SDM about the location of the SPT in flash, reads and displays it.
- Reads the CMF pointer block from flash and displays the relevant information.
- Queries SDM about the currently running image, RSU state and the encountered errors and displays the information.
SOCFPGA # rsu list
RSU: Remote System Update Status
Current Image : 0x01000000
Last Fail Image : 0x00000000
State : 0x00000000
Version : 0x00000202
Error location : 0x00000000
Error details : 0x00000000
Retry counter : 0x00000000
RSU: Sub-partition table 0 offset 0x00910000
RSU: Sub-partition table 1 offset 0x00918000
SF: Detected mt25qu02g with page size 256 Bytes, erase size 4 KiB, total 256 MiB
RSU: Sub-partition table content
BOOT_INFO Offset: 0x0000000000000000 Length: 0x00210000 Flag : 0x00000003
FACTORY_IMAGE Offset: 0x0000000000210000 Length: 0x00700000 Flag : 0x00000003
P1 Offset: 0x0000000001000000 Length: 0x01000000 Flag : 0x00000000
SPT0 Offset: 0x0000000000910000 Length: 0x00008000 Flag : 0x00000001
SPT1 Offset: 0x0000000000918000 Length: 0x00008000 Flag : 0x00000001
CPB0 Offset: 0x0000000000920000 Length: 0x00008000 Flag : 0x00000001
CPB1 Offset: 0x0000000000928000 Length: 0x00008000 Flag : 0x00000001
P2 Offset: 0x0000000002000000 Length: 0x01000000 Flag : 0x00000000
P3 Offset: 0x0000000003000000 Length: 0x01000000 Flag : 0x00000000
RSU: CMF pointer block offset 0x00920000
RSU: CMF pointer block's image pointer list
Priority 1 Offset: 0x0000000001000000 nslot: 0
SOCFPGA # rsu update 0x03000000
RSU: RSU update to 0x0000000003000000
The rsu dtb command is used to let U-Boot update the QSPI partition called "qspi_boot" in the Linux DTB so that it starts immediately after the BOOT_INFO partition. This way the decision firmware, decision firmware data, and the factory image are not accessible from Linux*, as this reduces the risk of accidental corruption for them. The size of the partition is also reduced accordingly.
For more information, refer to the Protected Access to Flash section.
- Load DTB.
- Run rsu dtb command.
- Boot Linux*
Refer to the Exercising U-Boot RSU Commands section for examples of how to use the U-Boot rsu command.
Refer to U-Boot RSU Reference Information for more details about U-Boot commands.