diff options
| author | Harrison Mutai <harrison.mutai@arm.com> | 2022-12-09 12:14:25 +0000 |
|---|---|---|
| committer | Harrison Mutai <harrison.mutai@arm.com> | 2023-01-25 09:40:33 +0000 |
| commit | aea4ccf8d9f3eabbc931f0e82df65ffca28c25e5 (patch) | |
| tree | 8d59c00437acf25634525f592460b102f8c973ec /lib/cpus/cpu-ops.mk | |
| parent | 695a48b5b4366d1005f8b9a0fc83726914668fb5 (diff) | |
fix(cpus): workaround for Cortex-A510 erratum 2684597
Cortex-A510 erratum 2684597 is a Cat B erratum that applies to revisions
r0p0, r0p1, r0p2, r0p3, r1p0, r1p1 and r1p2. It is fixed in r1p3. The
workaround is to execute a TSB CSYNC and DSB before executing WFI for
power down.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1873361/latest
https://developer.arm.com/documentation/SDEN1873351/latest
Change-Id: Ic0b24b600bc013eb59c797401fbdc9bda8058d6d
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
Diffstat (limited to 'lib/cpus/cpu-ops.mk')
| -rw-r--r-- | lib/cpus/cpu-ops.mk | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk index c9b444797..9c556b612 100644 --- a/lib/cpus/cpu-ops.mk +++ b/lib/cpus/cpu-ops.mk @@ -736,6 +736,11 @@ ERRATA_A510_2371937 ?=0 # to revisions r0p0, r0p1, r0p2, r0p3, r1p0, and r1p1. It is fixed in r1p2. ERRATA_A510_2666669 ?=0 +# Flag to apply erratum 2684597 workaround during powerdown. This erratum +# applies to revision r0p0, r0p1, r0p2, r0p3, r1p0, r1p1 and r1p2 of the +# Cortex-A510 cpu and is fixed in r1p3. +ERRATA_A510_2684597 ?=0 + # Flag to apply DSU erratum 798953. This erratum applies to DSUs revision r0p0. # Applying the workaround results in higher DSU power consumption on idle. ERRATA_DSU_798953 ?=0 @@ -1390,6 +1395,10 @@ $(eval $(call add_define,ERRATA_A510_2371937)) $(eval $(call assert_boolean,ERRATA_A510_2666669)) $(eval $(call add_define,ERRATA_A510_2666669)) +# Process ERRATA_A510_2684597 flag +$(eval $(call assert_boolean,ERRATA_A510_2684597)) +$(eval $(call add_define,ERRATA_A510_2684597)) + #Process ERRATA_DSU_798953 flag $(eval $(call assert_boolean,ERRATA_DSU_798953)) $(eval $(call add_define,ERRATA_DSU_798953)) |