What is the compiler of rcw?
If you have a document to compile, please share and link it.
Please refer to the following procedure.
$ git clone https://source.codeaurora.org/external/qoriq/qoriq-components/rcw.git
$ cd rcw
$ git checkout -b LSDK-21.08 LSDK-21.08
Please modify .rcw file in target board folder, for example ls1046ardb/RR_FFSSPPPH_1133_5559/rcw_1600_qspiboot.rcw
$ make -C <target board>
for example, make -C ls1046ardb, you will get ls1046ardb/RR_FFSSPPPH_1133_5559/rcw_1600_qspiboot.bin.