CaseySJ
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** Thunderbolt ROM Extracted Info **
Some information extracted form the Designare Thunderbolt ROM.
- Active partition begins at offset 0x4000.
- Byte offset 0x0A from the beginning of active partition represents the firmware version.
- For us, it is 0x33 or decimal 51.
- Offset 0x0200 to 0x0600 from the beginning of active partition is the Thunderbolt DROM.
These are the actual DROM bytes starting at offset 0x020F:
71000000 000000ED 00E04034 98016900 ED0008C0 01010881 80028000 00000882 90018000 00000883 80048001 00000884 90038001 00000585 50000005 86500000 02C70B88 20010064 00000000 00038980 058A5040 00058B50 40000B01 47494741 42595445 0011025A 33393020 44455349 474E4152 4500
What these bytes mean:
- 71 -- CRC (cyclic redundancy check)
- 00 00 00 00 00 00 ED 00 -- UID SwitchType3: ED000000000000
- E0 -- CRC
- 40 34 98 01 69 00 ED 00 -- To be defined
- 08 C0 01 01 -- To be defined
- 08 81 80 02 80 00 0000 -- TBPort1 DualLinkport2 HPMAddr0
- 08 82 90 01 80 00 0000 -- TBPort2 DualLinkport1 HPMAddr0
- 08 83 80 04 80 01 0000 -- TBPort3 DualLinkport4 HPMAddr1
- 08 84 90 03 80 01 0000 -- TBPort4 DualLinkport3 HPMAddr1
- 05 85 50 00 00 -- TBPort5 DisplayPort Adapter
- 05 86 50 00 00 -- TBPort6 DisplayPort Adapter
- 02 C7 -- TBSwitch7
- 0B 88 20 01 00 64 00 00 00 00 00 -- TBPort8 PCI Down Adapter DSB1
- 03 89 80 -- TBPort9 PCI Down Adapter DSB4
- 05 8A 50 40 00 -- TBPortA DisplayPort Adapter
- 05 8B 50 40 00 -- TBPortB DisplayPort Adapter
- 0B 01 47 49 47 41 42 59 54 45 00 -- The string "GIGABYTE"
- 11 02 5A 33 39 30 20 44 45 53 49 47 4E 41 52 45 00 -- The string "Z390 DESIGNARE"
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