Where is the IDCODE in the E31-rtl?

Archive SiFive RISC-V Core IP Evaluation
1

I want to find the IDCODE in the RTL of E31 code，where is the IDCODE defined?

2

The IDCODE is set within the design to 0x20000XXX, where the 11-bit MFR ID can be specified at the top level signal, io_jtag_mfr_id. In other words, VERSION is 0x2, PARTNUM is 0x0, and MFR is set outside the E-31 coreplex.

3

thanks