The MPFS RNG driver is not described by the device tree and is instead
registered dynamically by the system controller. Explicitly bind the
MPFS RNG driver as a child device during system controller probe.
This ensures the RNG device is instantiated and available via UCLASS_RNG
without requiring a device tree node.
Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
The MPFS system controller run_service() helper only submits the mailbox
request but does not read back the response data. However, the caller
must explicitly receive the response.
Add a public system controller helper to receive mailbox service
responses to populate the response buffer after issuing a system
controller request.
Without this, the drivers copy uninitialised stack data instead of
mailbox response data, resulting in deterministic output.
Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Include functions to use the system controller to read the device tree
overlays which supports auto update functionality.
Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
This driver provides an interface to access the functions of the system
controller on the Microchip PolarFire SoC.
This driver includes functions to use the system controller to read
the device serial number.
Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com>
Acked-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Jamie GibbonsandLeo Yu-Chi Liang
