Is MIPS supported enough to get callgraph and do flowjacks?

[noobdoesre]

Is mips64 supported enough to get callgraph and (more important) inject code into basic blocks? Tried to play around with elf for mips64 with octeon specific instructions (I've added them) with no luck - eresi detects only 2 functions, upon disassembling covers only a small part of binary (I haven't found out the exact reason yet). It seems like a problem with basic block / function identification maybe.

If fixing the broken stuff won't take too much time I'm ready to fix it to solve my task, just point out what's broken.