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| author | Spencer Oliver <spen@spen-soft.co.uk> | 2012-08-28 17:02:18 +0100 |
|---|---|---|
| committer | Freddie Chopin <freddie.chopin@gmail.com> | 2012-08-29 06:41:10 +0000 |
| commit | 897817b331a8b735996241bc7515e6bebeb39316 (patch) | |
| tree | f81cb4c01dc65c1244a875bf46356d50be2b8890 /src | |
| parent | 6055d952c3efd2e6b12924c5ec42407fff99b453 (diff) | |
| download | riscv-openocd-897817b331a8b735996241bc7515e6bebeb39316.zip riscv-openocd-897817b331a8b735996241bc7515e6bebeb39316.tar.gz riscv-openocd-897817b331a8b735996241bc7515e6bebeb39316.tar.bz2 | |
stlink: improve swd hardware reset
Treat SWD wait result as success, otherwise hardware reset will sometimes fail.
Change-Id: I0dbdbe9e75924fe0dde547a72883c60c3db7b15e
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/799
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/jtag/drivers/stlink_usb.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/jtag/drivers/stlink_usb.c b/src/jtag/drivers/stlink_usb.c index b2f380a..a88f559 100644 --- a/src/jtag/drivers/stlink_usb.c +++ b/src/jtag/drivers/stlink_usb.c @@ -94,7 +94,10 @@ struct stlink_usb_handle_s { }; #define STLINK_DEBUG_ERR_OK 0x80 -#define STLINK_DEBUG_ERR_FAULT 0x81 +#define STLINK_DEBUG_ERR_FAULT 0x81 +#define STLINK_SWD_AP_WAIT 0x10 +#define STLINK_SWD_DP_WAIT 0x14 + #define STLINK_CORE_RUNNING 0x80 #define STLINK_CORE_HALTED 0x81 #define STLINK_CORE_STAT_UNKNOWN -1 @@ -784,6 +787,10 @@ static int stlink_usb_reset(void *handle) LOG_DEBUG("RESET: 0x%08X", h->databuf[0]); + /* the following is not a error under swd (using hardware srst), so return success */ + if (h->databuf[0] == STLINK_SWD_AP_WAIT || h->databuf[0] == STLINK_SWD_DP_WAIT) + return ERROR_OK; + return h->databuf[0] == STLINK_DEBUG_ERR_OK ? ERROR_OK : ERROR_FAIL; } |