diff options
| -rw-r--r-- | src/jtag/core.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/jtag/core.c b/src/jtag/core.c index e6bde518..f7d55b79 100644 --- a/src/jtag/core.c +++ b/src/jtag/core.c @@ -68,10 +68,12 @@ static const char *jtag_event_strings[] = /* * JTAG adapters must initialize with TRST and SRST de-asserted - * (they're negative logic, so that means *high*) + * (they're negative logic, so that means *high*). But some + * hardware doesn't necessarily work that way ... so set things + * up so that jtag_init() always forces that state. */ -static int jtag_trst = 0; -static int jtag_srst = 0; +static int jtag_trst = -1; +static int jtag_srst = -1; /** * List all TAPs that have been created. @@ -1337,9 +1339,15 @@ int jtag_init_reset(struct command_context_s *cmd_ctx) int jtag_init(struct command_context_s *cmd_ctx) { int retval; + if ((retval = jtag_interface_init(cmd_ctx)) != ERROR_OK) return retval; + /* guard against oddball hardware: force resets to be inactive */ + jtag_add_reset(0, 0); + if ((retval = jtag_execute_queue()) != ERROR_OK) + return retval; + if (Jim_Eval_Named(interp, "jtag_init", __FILE__, __LINE__) != JIM_OK) return ERROR_FAIL; |