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pine64 / bl602-re

Reverse engineering of BL602 blobs
Apache License 2.0
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Can we have a TODO List #12

Open VedantParanjape opened 3 years ago

VedantParanjape commented 3 years ago

Can there be a TODO List to get new people onboarded.

Yangff commented 3 years ago

I think there can be two things.. one is that we can rewrite these low-level libraries. This should be relatively easy since all symbols are preserved.

Another thing is that we can reverse-engineering the reg table. Which seems to be hard, I already compared the regs from bl602 with bk7231. It turns out that they have different reg maps, and might even have different values for regs that shared same funcationality... at least from what I'm reading for phy and modem.

VedantParanjape commented 3 years ago

Hi, how can you rewrite low-level libraries without register map.

Can you link a WIP rewrite of any of these libraries just for reference.

Yangff commented 3 years ago

Hi, how can you rewrite low-level libraries without register map.

Can you link a WIP rewrite of any of these libraries just for reference.

I' doing phy_ functions now. That's easy because you know all the addresses and what's bing written to these addresses. The only thing you don't know is the meaning of them. But that doesn't stop you from writing exactly same code..

I assume there might be some legal problem, so the next step might be trying to figure out the reg map by playing with the values and see what happens to the hardware..

VedantParanjape commented 3 years ago

' doing phy_ functions now. That's easy because you know all the addresses and what's bing written to these addresses. The only thing you don't know is the meaning of them. But that doesn't stop you from writing exactly same code..

Makes sense, I'll take a look at this, and ask you any queries if that's okay

I assume there might be some legal problem, so the next step might be trying to figure out the reg map by playing with the values and see what happens to the hardware..

I don't have the hardware yet :(

gamelaster commented 3 years ago

@VedantParanjape please, can you contact me at gamiee (at) pine64.dev ? Thank you 😊

AshUK commented 3 years ago

IMO a github project/issues board would be more appropriate as it would enable transparency and tracking.