TegraRcmSmash.exe [-V 0x0955] [-P 0x7321] [--relocator=intermezzo.bin] [-w] inputFilename.bin [-r] [--dataini=coreboot.ini] ([PARAM:VALUE]|[0xADDR:filename])*
If your Switch is ready and waiting in RCM mode, you can also just drag and drop the payload right onto TegraRcmSmash.exe
An example cmdline for launching linux using coreboot is something like this (the empty relocator is important):TegraRcmSmash.exe -w --relocator= "coreboot/cbfs.bin" "CBFS:coreboot/coreboot.rom"
A simpler way to load coreboot/other AArch64 payloads is to use
https://github.com/rajkosto/memloader and either put the files on microsd or use the --dataini parameter
After that, you can use imx_load as you would on Linux (Windows binaries available
here)
Alternatively, setup your u-boot cmdline to just load everything from microSD to not bother with imx_load