Re: [PATCH 0/2] Add new IPCC mailbox to support the coprocessor detach on some stm32mp15x boards

[Alexandre TORGUE]

Hi Arnaud

On 6/14/21 6:49 PM, Arnaud Pouliquen wrote:
> Purpose:
>    Add the IPCC channel 4 as "detach" mailbox to support the remoteproc the feature added in [1].
>
>    The enable of this feature is a design choice. As consequence, the new mbox is declared
>    only for stm32mp157c-ed1 & stm32mp15x-dkx boards maintained by ST Microelectronics.
>
> Aim:
>    Allow to send to the remote processor a HW signal on IPCC channel 4 when user space requests
>    to detach the main processor from the remote processor (e.g. a reboot of the  Linux processor
>    on a crash).
>
> [1] https://patchwork.ozlabs.org/project/devicetree-bindings/cover/20210331073347.8293-1-arnaud.pouliquen@xxxxxxxxxxx/
>
> Arnaud Pouliquen (2):
>    ARM: dts: stm32: Add coprocessor detach mbox on stm32mp157c-ed1 board
>    ARM: dts: stm32: Add coprocessor detach mbox on stm32mp15x-dkx boards
>
>   arch/arm/boot/dts/stm32mp157c-ed1.dts  | 4 ++--
>   arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 4 ++--
>   2 files changed, 4 insertions(+), 4 deletions(-)

Series Applied on stm32-next;

thanks
Alex