# Texas Instruments (TI) TNETC4401, MIPS32 DOCSIS-tailored SoC (4Kc-based) # Used in Knovative KC-100 and Motorola Surfboard SB5120 cable modems. # Datasheet: https://brezn.muc.ccc.de/~mazzoo/DOCSIS/tnetc4401.pdf transport select jtag set _TARGETNAME tnetc4401 set _CPUTAPID 0x0000100f jtag newtap $_TARGETNAME tap -irlen 5 -ircapture 0x01 -irmask 0x1f -expected-id $_CPUTAPID target create $_TARGETNAME mips_m4k -chain-position $_TARGETNAME.tap -endian big # May need to halt manually before calling reset init $_TARGETNAME configure -event reset-init { halt echo "Attempting to disable watchdog..." mwb phys 0xa8610b00 0 256 halt wait_halt }