All LSI "SCRIPTS" HBAs had firmware as part of kernel/driver sources among the many platforms they were used. I believe linux used a simple assembler whose sour

All LSI "SCRIPTS" HBAs had firmware as part of kernel/driver sources among the many platforms they were used. I believe linux used a simple assembler whose sources were included in kernel to generate the binaries (if not preprocessor tricks, even). *BSDs definitely had their own solution too.