[PATCH linux dev-4.10 v2] ARM: aspeed: Release UARTs from reset for all platforms

[Jeremy Kerr]

Hi Joel,

> This workaround was in place for Zaius. Make it common to all
> platforms as the held-in-reset behaviour breaks the Linux tty layer
> where users expect the existence of a device to mean it is usable.
> 
> We release all four UARTs that are covered by this register from reset.

This fixes issues where UART1 is non-functional, so meaning that the
obmc console infrastructure blocks when mirroring to a local tty.

Resolves: https://github.com/openbmc/openbmc/issues/1882
Resolves: https://github.com/openbmc/openbmc/issues/1865

Tested-by: Jeremy Kerr <jk at ozlabs.org>

Thanks!


Jeremy