diff options
| -rw-r--r-- | src/target/mips_m4k.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/src/target/mips_m4k.c b/src/target/mips_m4k.c index be7f59ec..04c9a1ef 100644 --- a/src/target/mips_m4k.c +++ b/src/target/mips_m4k.c @@ -256,14 +256,21 @@ int mips_m4k_assert_reset(target_t *target) mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT, NULL); } - /* here we should issue a srst only, but we may have to assert trst as well */ - if (jtag_reset_config & RESET_SRST_PULLS_TRST) - { - jtag_add_reset(1, 1); - } - else - { - jtag_add_reset(0, 1); + if (strcmp(target->variant, "ejtag_srst") == 0) { + u32 ejtag_ctrl = ejtag_info->ejtag_ctrl | EJTAG_CTRL_PRRST | EJTAG_CTRL_PERRST; + LOG_DEBUG("Using EJTAG reset (PRRST) to reset processor..."); + mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL); + mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl); + } else { + /* here we should issue a srst only, but we may have to assert trst as well */ + if (jtag_reset_config & RESET_SRST_PULLS_TRST) + { + jtag_add_reset(1, 1); + } + else + { + jtag_add_reset(0, 1); + } } target->state = TARGET_RESET; |