[U-Boot] [PATCH V2] imx: mx7: psci: add system reset support

[Fabio Estevam]

Hi Anson,

On Fri, Jan 5, 2018 at 4:25 AM, Anson Huang <anson.huang at nxp.com> wrote:

> Thanks for the comments, the current reboot command works is just
> because wdog driver is enabled and when system reboot, the reboot notification
> callback in wdog driver will do reset. But if wdog is disabled in dtb, the reboot
> command will fail.
>
> As now we use PSCI, the reboot operation will eventually call into u-boot's psci
> reset callback, we should support this feature, the reboot feature in Linux kernel
> should NOT depends on wdog's existence.

Ok, but what about erratum e10574 (Watchdog: A watchdog timeout or
software trigger will not reset the SOC)?

According to this erratum WDOG_B pin needs to generate a system power on.