From the extras/mcufriend_how_to.txt:
19. OPEN-SMART Shields have different wiring to regular Uno Shields:
Edit mcufriend_shield.h: #define USE_SPECIAL
Edit mcufriend_special.h: #define USE_OPENSMART_SHIELD_PINOUT
The RM68090 is very similar to ILI9320. It looks as if I do support it by default.
Note that Open-Smart provide a hacked version of an obsolete MCUFRIEND_kbv.
I strongly recommend that you remove the directory. Then install the proper library via the Library Manager.
Yes, you have to make those edits with any new library installation.
David.