diff options
| author | Soby Mathew <soby.mathew@arm.com> | 2014-08-14 12:49:05 +0100 |
|---|---|---|
| committer | Dan Handley <dan.handley@arm.com> | 2014-08-20 19:14:31 +0100 |
| commit | add403514d0f792b9df3c81006cd9a9395b213f6 (patch) | |
| tree | 284f2c6ee8f2f93eb15a4d698ed79d896e1dd3f4 /bl31 | |
| parent | 24fb838f965cc1250831cd021d6a18b0d371b853 (diff) | |
Add CPU specific power management operations
This patch adds CPU core and cluster power down sequences to the CPU specific
operations framework introduced in a earlier patch. Cortex-A53, Cortex-A57 and
generic AEM sequences have been added. The latter is suitable for the
Foundation and Base AEM FVPs. A pointer to each CPU's operations structure is
saved in the per-cpu data so that it can be easily accessed during power down
seqeunces.
An optional platform API has been introduced to allow a platform to disable the
Accelerator Coherency Port (ACP) during a cluster power down sequence. The weak
definition of this function (plat_disable_acp()) does not take any action. It
should be overriden with a strong definition if the ACP is present on a
platform.
Change-Id: I8d09bd40d2f528a28d2d3f19b77101178778685d
Diffstat (limited to 'bl31')
| -rw-r--r-- | bl31/aarch64/bl31_entrypoint.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/bl31/aarch64/bl31_entrypoint.S b/bl31/aarch64/bl31_entrypoint.S index a9238dcb..c74858f9 100644 --- a/bl31/aarch64/bl31_entrypoint.S +++ b/bl31/aarch64/bl31_entrypoint.S @@ -154,6 +154,12 @@ func bl31_entrypoint bl zeromem16 /* --------------------------------------------- + * Initialize the cpu_ops pointer. + * --------------------------------------------- + */ + bl init_cpu_ops + + /* --------------------------------------------- * Use SP_EL0 for the C runtime stack. * --------------------------------------------- */ |