Beaglebone SPIs

I am using BeagleBone enhanced and was configuring my two SPi's. I have disabled the hdmi feature to run both SPIs in paraller. However I can only run SPI in these configurations SPI(1,0) and SPI(2,0). I wanted to ask whether it means they are running independently of each other or are they both running on the same bus i.e., 0 and also why cannot I configure the SPIs in the configurations SPI(1,1) and SPI(2,1)?

I would be quite grateful if anyone could guide me through this. I have been looking all over the internet about this issue.

No file, test, or entry point is named in the issue. Start by locating the library's SPI configuration interface and its BeagleBone bus and chip-select mapping; done means documenting whether SPI(1,0) and SPI(2,0) are independent and why chip-select 1 cannot be configured.

Written by the indexing model from the issue text.