ReSpeaker v2.0 SPI port on GPIO?

Dears, we're working on connecting an LCD that uses SPI communication, yet the board does not show any SPI ports or pins although the RK3229 has the SPI communication features.
Any idea on how to access them or if they are even pulled out of the chip to the board?

**The built-in LEDs are SPI driven, is there any idea about their CS pin in the main chip or the board?
