From: Tilman Sauerbeck <tilman@code-monkey.de>
Date: Mon, 3 Jun 2019 19:19:07 +0000 (+0200)
Subject: jtag: drivers: buspirate: chunk SWD switch sequence transfer.
X-Git-Tag: v0.11.0-rc1~624
X-Git-Url: https://review.openocd.org/gitweb?a=commitdiff_plain;h=8ed19a2e29bd438db055b2bcda336ddf5a041410;hp=8ed19a2e29bd438db055b2bcda336ddf5a041410;p=openocd.git

jtag: drivers: buspirate: chunk SWD switch sequence transfer.

Commit c2e18bfaeafd changed the size of the JTAG-to-SWD sequence
from 15 bytes to 17 bytes. This broke SWD switch sequence transfer
for buspirate, since buspirate packets can only hold a payload of up
to 16 bytes and we tried to fit the whole sequence in a single packet.

Splitting up the sequence transfer in appropriately sized packets
makes buspirate SWD work again (successfully tested with buspirate
firmwares v6.1 and v7.0).

Change-Id: Ib5b412b9e77287d705d2762e31c16d30318b50e3
Signed-off-by: Tilman Sauerbeck <tilman@code-monkey.de>
Reviewed-on: http://openocd.zylin.com/5200
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
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