Most of them can be found by examining tegra186-mb1-bct-pinmux-quill-p3310-1000-c03.cfg or <Linux_for_Tegra>/kernel/pinmux/t186/addr_info.txt.
Unfortunately, if you check out Why some pins should have GPIO function but not marked in TX2 pinmux document? - #20 by JDSchroeder it looks like NVIDIA has removed their own/my spreadsheet with all of the GPIOs listed properly because “it was flagged as potentially malicious”. If I try to re-upload the file they flag it again as being dangerous. I can try sending it to you directly if you would like.
F7 = GPIO N.02
A49 = ???
I’m not sure where you got this pin number. Are you working on the Jetson TX2?