stlink: fix SWIM mode on stlink-v3 43/6443/2
authorAntonio Borneo <borneo.antonio@gmail.com>
Thu, 19 Aug 2021 14:07:21 +0000 (16:07 +0200)
committerAntonio Borneo <borneo.antonio@gmail.com>
Sun, 22 Aug 2021 20:22:34 +0000 (20:22 +0000)
commit044e0f8c9aec9fe94d77199e64c813fb4336984b
treeb3189b7fe1791d38fc9a7d2e6fe052ddbffb8fcd
parent013a0e88d2a6e4626987e9fbe056ee1d40026933
stlink: fix SWIM mode on stlink-v3

Commit 89f07325f2e7 ("stlink: Set speed before entering JTAG/SWD
mode") anticipates setting the adapter speed just before entering
in the JTAG/SWD mode. This to initiate the communication with the
speed selected by the user.
But SWIM doesn't allow setting the speed before entering in SWIM
mode. The resulting error causes OpenOCD to quit.
The problem only happens with stlink-v3, due to the different way
to set the adapter speed on different stlink versions.

Set the speed before entering in the mode only for JTAG and SWD
modes.

Change-Id: Iab42cd9d72ecfac14c7e17bae74e0dee2218b235
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Fixes: 89f07325f2e7 ("stlink: Set speed before entering JTAG/SWD mode")
Reviewed-on: https://review.openocd.org/c/openocd/+/6443
Tested-by: jenkins
Reviewed-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
src/jtag/drivers/stlink_usb.c

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