diff options
| author | Bipin Ravi <bipin.ravi@arm.com> | 2022-11-02 16:12:01 -0500 |
|---|---|---|
| committer | Bipin Ravi <bipin.ravi@arm.com> | 2022-11-03 14:47:04 -0500 |
| commit | 8ce40503ad00fe0dd35de6e51551da2b4f08a848 (patch) | |
| tree | 477132a7c523184eb6730fed12d86a18285b6344 /lib/cpus/cpu-ops.mk | |
| parent | 6325f661c25c4fac5db9d57f92f71170b5eab567 (diff) | |
fix(cpus): workaround for Neoverse N1 erratum 2743102
Neoverse N1 erratum 2743102 is a Cat B erratum that applies to
all revisions <=r4p1 and is still open. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN885747/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I81a8793c1a118764df3ac97b67f5e088f56f6a20
Diffstat (limited to 'lib/cpus/cpu-ops.mk')
| -rw-r--r-- | lib/cpus/cpu-ops.mk | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk index b4421dda3..f53bad1ff 100644 --- a/lib/cpus/cpu-ops.mk +++ b/lib/cpus/cpu-ops.mk @@ -450,6 +450,10 @@ ERRATA_N1_1868343 ?=0 # exists in revisions r0p0, r1p0, and r2p0 as well but there is no workaround. ERRATA_N1_1946160 ?=0 +# Flag to apply erratum 2743102 workaround during powerdown. This erratum +# applies to all revisions <= r4p1 of the Neoverse N1 cpu and is still open. +ERRATA_N1_2743102 ?=0 + # Flag to apply erratum 2002655 workaround during reset. This erratum applies # to revisions r0p0 of the Neoverse-N2 cpu, it is still open. ERRATA_N2_2002655 ?=0 @@ -1072,6 +1076,10 @@ $(eval $(call add_define,ERRATA_N1_1868343)) $(eval $(call assert_boolean,ERRATA_N1_1946160)) $(eval $(call add_define,ERRATA_N1_1946160)) +# Process ERRATA_N1_2743102 flag +$(eval $(call assert_boolean,ERRATA_N1_2743102)) +$(eval $(call add_define,ERRATA_N1_2743102)) +# # Process ERRATA_N2_2002655 flag $(eval $(call assert_boolean,ERRATA_N2_2002655)) $(eval $(call add_define,ERRATA_N2_2002655)) |