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arm_adi_v5: put SWJ-DP back to JTAG mode at exit

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When SWD mode is used, current OpenOCD code left the SWJ-DP in
SWD mode at exit. Also, current code is unable to switch back the
SWJ-DP in JTAG at next run, thus a power cycle of both target and
interface is required in order to run OpenOCD in JTAG mode again.

Put the SWJ-DP back to JTAG mode before exit from OpenOCD.

Use switch_seq(SWD_TO_JTAG) instead of dap_to_jtag(), because the
latter is not implemented on some interfaces. This is aligned
with the use of switch_seq(JTAG_TO_SWD) in swd_connect().

Change-Id: I55d3faebe60d6402037ec39dd9700dc5f17c53b0
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4493
Tested-by: jenkins
Reviewed-by: Bohdan Tymkiv <bhdt@cypress.com>
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
This commit is contained in:
Antonio Borneo
2018-06-10 14:39:26 +02:00
committed by Matthias Welwarsky
parent c5658364b2
commit 9363705820
3 changed files with 19 additions and 0 deletions
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5
src/target/arm_dap.c
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@@ -132,8 +132,13 @@ static int dap_init_all(void)
int dap_cleanup_all(void)
{
struct arm_dap_object *obj, *tmp;
struct adiv5_dap *dap;
list_for_each_entry_safe(obj, tmp, &all_dap, lh) {
dap = &obj->dap;
if (dap->ops && dap->ops->quit)
dap->ops->quit(dap);
free(obj->name);
free(obj);
}