From patchwork Mon Jun 14 16:49:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaud Pouliquen X-Patchwork-Id: 12319443 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C44BC48BE6 for ; Mon, 14 Jun 2021 16:51:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 615FB611C1 for ; Mon, 14 Jun 2021 16:51:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235155AbhFNQxC (ORCPT ); Mon, 14 Jun 2021 12:53:02 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:22468 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S235092AbhFNQxB (ORCPT ); Mon, 14 Jun 2021 12:53:01 -0400 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 15EGmDJW015215; Mon, 14 Jun 2021 18:50:44 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=selector1; bh=/9D3/0H3bHA9sU2AK/C1nUebkqDvEpgx+D4YIfVFv5s=; b=KvkMyXtJRXZMcLaPnOzP5r1xVlPZv81gXFTvMuN6BIdhP5clixs7x+xB2gjdqk5inIjs TY6VTB9E9uFPKutcvLNtSJrqJFe30MLW9UUAXIoPcvZxVZLHnOK1eOLki956UlguXFBR x4fDRtMRppp+aIndW+8XiDRHIvptum2XNMlwWr/n/R796B4BPd4eVhDtVm5JFjvwTrYZ u1U81vE6582HxHwqpVMdU3xWsXBHdF+sm3CdnU2f2ILoee05v9VKrV9cQfPmbC1wB7eM 5qskzf3jo/6GqY1cVR9uV112QbA0sZjc5IxSfhpYszhKOMD2sBfMuUaNtPTQVJhuSGXX dg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 3963682q6y-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 14 Jun 2021 18:50:44 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 1DF70100034; Mon, 14 Jun 2021 18:50:42 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 0B58221CE24; Mon, 14 Jun 2021 18:50:42 +0200 (CEST) Received: from localhost (10.75.127.46) by SFHDAG2NODE3.st.com (10.75.127.6) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 14 Jun 2021 18:50:41 +0200 From: Arnaud Pouliquen To: Rob Herring , Alexandre Torgue , Maxime Coquelin CC: , , , , , Arnaud Pouliquen Subject: [PATCH 0/2] Add new IPCC mailbox to support the coprocessor detach on some stm32mp15x boards Date: Mon, 14 Jun 2021 18:49:38 +0200 Message-ID: <20210614164940.27153-1-arnaud.pouliquen@foss.st.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG2NODE2.st.com (10.75.127.5) To SFHDAG2NODE3.st.com (10.75.127.6) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.761 definitions=2021-06-14_10:2021-06-14,2021-06-14 signatures=0 Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org 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@foss.st.com/ 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(-)