Comment by karma_pharmer | Hacker News Reader

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Comment by karma_pharmer | Hacker News Reader

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karma_pharmer·

> Cleanroom reverse engineering for the purpose of publishing new driver code, to avoid legal/IP minefields, is super-expensive

Project Ortega did it to an entire gigabit ethernet controller for the princely sum of zero dollars:

https://media.ccc.de/v/37c3-11781-adventures_in_reverse_engi...

https://wiki.raptorcs.com/wiki/Project_Ortega

> Binary BL31 contains some unknown code to get HDMI-RX PHY access working.

That doesn't sound like DDR training to me. Maybe now you see the problem?

> That doesn't sound like DDR training to me. Maybe now you see the problem?

It is absolutely a problem, but it's bounded by the ability to inspect and question code/behavior outside the officially claimed rationale. We can prefer open systems and also shine a bright light on the behavior of closed systems.

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