RE: [PATCH v2 2/3] firmware: imx: scu-pd: Add mu13 b side PD range

[Aisheng Dong]

> From: Daniel Baluta <daniel.baluta@xxxxxxx>
> Sent: Thursday, July 18, 2019 6:25 PM
> 
> LSIO subsystem contains 14 MU instances.
> 
> 5 MUs to communicate between AP <-> SCU
>   - side-A PD range managed by AP
>   - side-B PD range managed by SCU
> 
> 9 MUs to communicate between all cores (AP/M4/DSP).
>   - side-A PD range managed by core-A (AP/M4/DSP)
>   - side-B PD range managed by core-B (AP/M4/DSP).
> 
> Communication between AP <-> DSP is done through the assigned MU number
> 13.
> 
> So, we power up side-A by the AP and we decide to power up side-B also from
> AP. This is because powering it up from DSP would be painful.
> 
> Powering up side B from DSP would require the DSP to communicate with SCU
> and to keep things simple we don't want that now.
> 
> Signed-off-by: Daniel Baluta <daniel.baluta@xxxxxxx>

Reviewed-by: Dong Aisheng <aisheng.dong@xxxxxxx>

Regards
Aisheng