ARM: at91: pm: Add sama5d2 backup mode

The sama5d2 has a mode were it is possible to cut power to the SoC while
keeping the RAM in self refresh.
Resuming from that mode needs support in the firmware/bootloader.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
This commit is contained in:
Alexandre Belloni 2016-09-27 12:29:50 +02:00
commit 24a0f5c539
6 changed files with 187 additions and 23 deletions