I am trying to implement Thunderbolt in my own board design. I have seen that it is possible to get the thunderbolt controller (hardware) but it is impossible to get important design information. I have tried to get the access making contact with them but they told me us this:
Your request for re-evaluation was reviewed by Management, and unfortunately our resources remain unavailable. We do not want to put anyone into a situation where they are trying to certify without support, and instead we suggest TMRW/Room to partner with one of the Thunderbolt ODMs who have a track record of certifying Thunderbolt devices. Please see [ https://thunderbolttechnology.net/tech/odms ] for a list of Thunderbolt ODMs.
I have made contact with some of ODMs of the list, but one of them have answered to me (Areca). I have tried to explain them what i need (design support) but it seems that they don't help with this, they have offered to me an a PCIe to Thunderbolt card expansion.
Is it impossible to add Thunderbolt to our designs?