tree 417bc42b9fac7a09e97fa30439da142fadf28e94
parent 8a196af45d40e52df33646ab7424d0871fbad504
author Michal Simek <michal.simek@xilinx.com> 1531494013 +0200
committer Michal Simek <michal.simek@xilinx.com> 1531990195 +0200

sysreset: Add support for Microblaze soft reset jump

Microblaze is storing reset vector at address 0x0.
It means soft reset can be done by just jumping to this address.
This code was in platform code but sysreset interface is providing
enough capabilities to have more options how to reset the system. It can
go from gpio reset through watchdog reset till soft reset.

The driver has not compatible string because this is cpu specific and DM
core is not able to detect compatible string in DT root that's why this
driver will be instantiated from platform code by calling
device_bind_driver(gd->dm_root, "mb_soft_reset", "reset_soft",
NULL);
It should be bind as the last reset method to ensure that hw reset is
called before this.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>