tree bf6e5eb055416cf9bedcca976cace3c1d958d42d
parent 675377600f1839fc34fe09364d949293d73372a9
author Andre Przywara <andre.przywara@arm.com> 1536970729 +0100
committer Andre Przywara <andre.przywara@arm.com> 1540049039 +0100

allwinner: A64: Add AXP803 PMIC support to power off the board

Boards with the Allwinner A64 SoC are mostly paired with an AXP803 PMIC,
which allows to programmatically power down the board.

Use the newly introduced RSB driver to detect and program the PMIC on
boot, then later to turn off the main voltage rails when receiving a
PSCI SYSTEM_POWER_OFF command.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>