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adi_v5_jtag: extend memaccess_tck to every AP access 60/6460/5
authorKevin Burke <kevinb@os.amperecomputing.com>
Sat, 14 Aug 2021 16:55:28 +0000 (18:55 +0200)
committerAntonio Borneo <borneo.antonio@gmail.com>
Fri, 24 Jun 2022 21:37:00 +0000 (21:37 +0000)
commit62058c0a32e0e98db39087f8c1e29085e611f2b8
treeeebacde1e8e258537d106167c613922ecd45c94ctree | snapshot
parent8f8fb0fa79742c5e6357e9a2a1609d0500d91293commit | diff
adi_v5_jtag: extend memaccess_tck to every AP access

ADIv5 reports:
Accessing AP registers or debug resources in connected
device through an AP can be subjected to other variable
response delays in the system. A debugger that can adapt
to these delays and avoid wasting WAIT scans operates more
efficiently and provides higher maximum data throughput.

The existing code in OpenOCD uses extra tck only for accessing
resources through an AP.

Extend the use of extra tck also for accessing an AP register.

Split from change https://review.openocd.org/6077/

Change-Id: I2082362e098d09f4ba0668e01f5196afc965c8f3
Signed-off-by: Kevin Burke <kevinb@os.amperecomputing.com>
Signed-off-by: Daniel Goehring <dgoehrin@os.amperecomputing.com>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6460
Tested-by: jenkins
src/target/adi_v5_jtag.c diff | blob | history
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