diff options
| author | Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com> | 2013-03-14 14:07:20 +0000 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2013-07-01 11:05:14 +0100 |
| commit | aa55d8151df4cc277cd453d9e8dbfabdbced761f (patch) | |
| tree | 4683cae2ff5b6251ba629cd013a7a9d9e1f1a395 /drivers/cpuidle | |
| parent | 62373580b24749b621529f0dcc8e64719e189fa9 (diff) | |
ARM: TC2: reset CPUs spuriously woken up on cluster power up
On TC2, all CPUs in a cluster are woken up when an IRQ event triggers for a
CPU in a cluster in shutdown state.
This patch puts spuriously woken CPUs back in reset by checking the
pending IRQ status in the SPC wake-up interrupt status register; if the
CPU has no pending IRQ routed to it, the core reexecutes wfi and it is put
in reset by FW straight away.
Tested-by: Viresh Kumar <viresh.kumar2@arm.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'drivers/cpuidle')
0 files changed, 0 insertions, 0 deletions