tree a9f283938ea6e25830f9c2fa54c351dec161d450
parent 213480e12d880ef6782f56f1af95469b48cca539
author Jan Kiszka <jan.kiszka@siemens.com> 1420030000 +0100
committer Hans de Goede <hdegoede@redhat.com> 1421243800 +0100

sun7i: Add support for taking CPUs offline via PSCI

Based on the original version by Marc Zyngier. It adds a psci_cpu_off
implementation for the A20 SoC. The mechanism works by first preparing
the calling CPU to go offline (disable and flush cache, disable SMP),
then requesting CPU 0 to pull the plug. The request is sent as FIQ on
SGI15.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>