riscv-openocd/tcl/board/novena-internal-fpga.cfg

#
# Novena open hardware and F/OSS-friendly computing platform
#
# Design documentation:
# http://www.kosagi.com/w/index.php?title=Novena_PVT_Design_Source
#
# +-------------+--------------+------+-------+---------+
# | Pad name    | Schematic    | GPIO | sysfs | JTAG    |
# +-------------+--------------+------+-------+---------+
# | DISP0_DAT13 | FPGA_RESET_N | 5-07 |  135  | RESET_N |
# | DISP0_DAT14 | FPGA_TCK     | 5-08 |  136  | TCK     |
# | DISP0_DAT15 | FPGA_TDI     | 5-09 |  137  | TDI     |
# | DISP0_DAT16 | FPGA_TDO     | 5-10 |  138  | TDO     |
# | DISP0_DAT17 | FPGA_TMS     | 5-11 |  139  | TMS     |
# +-------------+--------------+------+-------+---------+

adapter driver sysfsgpio

transport select jtag

# TCK TMS TDI TDO
sysfsgpio jtag_nums 136 139 137 138

source [find cpld/xilinx-xc6s.cfg]