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

From: Alexandre TORGUE
Date: Thu Jul 15 2021 - 11:17:15 EST


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