upper half of MNT Reform RK3588 D-1 schematic, showing Reform motherboard connector, 4V and 1V2 power supplies, ethernet PHY, and 2½ of the icore RK3588 module pins (KiCAD eeschema)
https://files.mastodon.social/media_attachments/files/111/818/296/845/475/732/original/aa4846a5f8413489.png