Create a PAC for the ESP32-P4

[jessebraham]

I still haven't created an SVD for this chip yet, but once I do I'll get a PAC made up.

[jessebraham]

I started work on the SVD for this device earlier this week. There is still a fair bit of work left to do there so I'm not sure when it will be ready, but it's on the way at least.

[felipebalbi]

I started work on the SVD for this device earlier this week.

unrelated to your work, just generally curious. Are you writing the SVD by hand based on documentation alone? I'm assuming Espressif did not provide an SVD, then. Correct?

[jessebraham]

Essentially we (Espressif) have some internal file format which is used by the digital team to describe the registers/fields for each peripheral. I have written a tool which consumes these files and spits out an SVD. However, these files unfortunately are not perfect, and also they aren't necessarily structured in the way we want them to be in the SVDs, so some manual intervention is still required.

[jessebraham]

The SVD is probably ready for an initial release, however I still do not have hardware so there's not much rush. I will continue to refine the SVD in the meantime, and will likely have a PAC pushed within the next month or so.