tree 56c176d748a6fb98d302be02b46a0dd04d63de95
parent 924bda3def679319dc780098aa447a686c1b672e
author Suzuki K Poulose <suzuki.poulose@arm.com> 1612203227 -0700
committer Todd Kjos <tkjos@google.com> 1614631931 -0800

UPSTREAM: coresight: etm4x: Add support for sysreg only devices

Add support for devices with system instruction access only.
They don't have a memory mapped interface and thus are not
AMBA devices. System register access is not permitted to
TRCPDCR and thus skip access to them.

Bug: 174685394
Link: https://lore.kernel.org/r/20210110224850.1880240-26-suzuki.poulose@arm.com
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210201181351.1475223-28-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 5214b563588e8414193bd7a174c52350256942a6)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: I7918a1490a987c87638467419d9925241fd91bd1