Re: [PATCH 1/9] drm/ast: Handle configuration without P2A bridge

On Fri, 2017-02-17 at 16:32 +1100, Benjamin Herrenschmidt wrote: > The ast driver configures a window to enable access into BMC > memory space in order to read some configuration registers. Aspeed suggested a couple of refinements for some chipsets, so I'll respin either this week-end or monday.

Re: [PATCH 1/9] drm/ast: Handle configuration without P2A bridge

On Fri, 2017-02-17 at 16:32 +1100, Benjamin Herrenschmidt wrote: Make this From: Russell Currey Git ate it when I amended (citool bug) and I forgot to fix it up. > The ast driver configures a window to enable access into BMC > memory space in order to read some

[PATCH 1/9] drm/ast: Handle configuration without P2A bridge

The ast driver configures a window to enable access into BMC memory space in order to read some configuration registers. If this window is disabled, which it can be from the BMC side, the ast driver can't function. Closing this window is a necessity for security if a machine's host side and BMC