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| 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/psci/psci_private.h | |
| 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/psci/psci_private.h')
| -rw-r--r-- | lib/psci/psci_private.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/psci/psci_private.h b/lib/psci/psci_private.h index 1901c172f..6ca9ef694 100644 --- a/lib/psci/psci_private.h +++ b/lib/psci/psci_private.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2013-2022, Arm Limited and Contributors. All rights reserved. + * Copyright (c) 2013-2023, Arm Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -304,6 +304,9 @@ int psci_spd_migrate_info(u_register_t *mpidr); */ void prepare_cpu_pwr_dwn(unsigned int power_level); +/* This function applies various CPU errata during power down. */ +void apply_cpu_pwr_dwn_errata(void); + /* Private exported functions from psci_on.c */ int psci_cpu_on_start(u_register_t target_cpu, const entry_point_info_t *ep); |