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| /rk3399_ARM-atf/lib/cpus/aarch64/ |
| H A D | cortex_a510.S | 7f304b02a802b7293d7a8b4f4030c5ff00158404 Mon Feb 14 03:00:10 UTC 2022 johpow01 <john.powell@arm.com> fix(errata): workaround for Cortex-A510 erratum 2250311
Cortex-A510 erratum 2250311 is a Cat B erratum that applies to revisions
r0p0, r0p1, r0p2, r0p3 and r1p0 and is fixed in r1p1.
This erratum workaround is a bit different because it interacts with a
feature supported in TFA. The typical method of implementing an errata
workaround will not work in this case as the MPMM feature would just be
re-enabled by context management at every core power on after being
disabled by the errata framework. So in addition to disabling MPMM, this
workaround also sets a flag in the MPMM runtime framework indicating
that the feature should not be enabled even if ENABLE_MPMM=1.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN2397239
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I7805756e65ec90b6ef8af47e200617c9e07a3a7e
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| /rk3399_ARM-atf/docs/design/ |
| H A D | cpu-specific-build-macros.rst | 7f304b02a802b7293d7a8b4f4030c5ff00158404 Mon Feb 14 03:00:10 UTC 2022 johpow01 <john.powell@arm.com> fix(errata): workaround for Cortex-A510 erratum 2250311
Cortex-A510 erratum 2250311 is a Cat B erratum that applies to revisions
r0p0, r0p1, r0p2, r0p3 and r1p0 and is fixed in r1p1.
This erratum workaround is a bit different because it interacts with a
feature supported in TFA. The typical method of implementing an errata
workaround will not work in this case as the MPMM feature would just be
re-enabled by context management at every core power on after being
disabled by the errata framework. So in addition to disabling MPMM, this
workaround also sets a flag in the MPMM runtime framework indicating
that the feature should not be enabled even if ENABLE_MPMM=1.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN2397239
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I7805756e65ec90b6ef8af47e200617c9e07a3a7e
|
| /rk3399_ARM-atf/lib/cpus/ |
| H A D | cpu-ops.mk | 7f304b02a802b7293d7a8b4f4030c5ff00158404 Mon Feb 14 03:00:10 UTC 2022 johpow01 <john.powell@arm.com> fix(errata): workaround for Cortex-A510 erratum 2250311
Cortex-A510 erratum 2250311 is a Cat B erratum that applies to revisions
r0p0, r0p1, r0p2, r0p3 and r1p0 and is fixed in r1p1.
This erratum workaround is a bit different because it interacts with a
feature supported in TFA. The typical method of implementing an errata
workaround will not work in this case as the MPMM feature would just be
re-enabled by context management at every core power on after being
disabled by the errata framework. So in addition to disabling MPMM, this
workaround also sets a flag in the MPMM runtime framework indicating
that the feature should not be enabled even if ENABLE_MPMM=1.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN2397239
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I7805756e65ec90b6ef8af47e200617c9e07a3a7e
|