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| author | Louis Mayencourt <louis.mayencourt@arm.com> | 2019-04-09 16:29:01 +0100 |
|---|---|---|
| committer | Louis Mayencourt <louis.mayencourt@arm.com> | 2019-04-17 13:46:43 +0100 |
| commit | 0e985d708e8f429c1fa1f557d3eea90e32de5228 (patch) | |
| tree | 1fcdb2dc74d4f1f127a9360319f3426e37c2dbf5 /docs | |
| parent | 2c3b76ce7b9e36e5c8be3c454110e070a20332ca (diff) | |
| download | platform_external_arm-trusted-firmware-0e985d708e8f429c1fa1f557d3eea90e32de5228.tar.gz platform_external_arm-trusted-firmware-0e985d708e8f429c1fa1f557d3eea90e32de5228.tar.bz2 platform_external_arm-trusted-firmware-0e985d708e8f429c1fa1f557d3eea90e32de5228.zip | |
DSU: Implement workaround for errata 798953
Under certain near idle conditions, DSU may miss response transfers on
the ACE master or Peripheral port, leading to deadlock. This workaround
disables high-level clock gating of the DSU to prevent this.
Change-Id: I820911d61570bacb38dd325b3519bc8d12caa14b
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/cpu-specific-build-macros.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/cpu-specific-build-macros.rst b/docs/cpu-specific-build-macros.rst index 0b581692f..7b7f4cde8 100644 --- a/docs/cpu-specific-build-macros.rst +++ b/docs/cpu-specific-build-macros.rst @@ -233,6 +233,11 @@ of DSU errata workarounds are similar to `CPU errata workarounds`_. For DSU errata, the following build flags are defined: +- ``ERRATA_DSU_798953``: This applies errata 798953 workaround for the + affected DSU configurations. This errata applies only for those DSUs that + revision is r0p0 (on r0p1 it is fixed). However, please note that this + workaround results in increased DSU power consumption on idle. + - ``ERRATA_DSU_936184``: This applies errata 936184 workaround for the affected DSU configurations. This errata applies only for those DSUs that contain the ACP interface **and** the DSU revision is older than r2p0 (on |