Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp5532373yba; Mon, 13 May 2019 12:31:56 -0700 (PDT) X-Google-Smtp-Source: APXvYqx0PuY2tkK243kvZ4/4g6eKVxA7mh0Sp6IcCDFvnVHZou8IVI8IoJWEr2eHDVHyaz9gJo3u X-Received: by 2002:a65:578a:: with SMTP id b10mr17251479pgr.161.1557775916213; Mon, 13 May 2019 12:31:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1557775916; cv=none; d=google.com; s=arc-20160816; b=EvlofGaLbN3cbPUWAJgugm4UU/biH9HNycdiKpQEbn/EbAZRD56qZFvSt2t4dMkr3y k385bMKD1237fU09E4qRVxFSDwj813FUKDdnpPQNxsYK2vBmNL7DNrdHp3dU75Xvtj0X htCkcV9Uzd4TES33KJwk/GajZoaWNfJ7hkXOcKHcmhfBszoBo03BWi0ifjDWauRsdSor amPyQ2LhiLuF8szG5zAujP9dZqQe/OwA/Lakm4uR30WZA8dURpeLH+47WEL/bEYW4PFl 7KV4PXJ34DB0C+rSxNjZYn906tj2TNd/18QmO4VJaIzXnC140m7vp35T5h7tIoCLQX9U 37zw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=gxg55zJpNlVm2nYvWvCM959D+KA++JweeXldKs1l7XI=; b=OW7+0Wyrf/HU9itTjRWKAl13ft+eS5yzuuT/eaFeRQ/xMVS8koGoQBYpwRvL06J+ak oJSFji26Ov1HcLzUsSiAR6nY5JAYXu6nYcAtEEdCc4gpZ4Eieno9wuKSgj8VwuGqAtB7 V4l4vgl3+mg9z6OMRs/iUIl43M7/qZ446oEkpaSqeyLnNBQyA5zHINIOETB5RyL0GbgN 1vtBdiT+lI/00jJs6NRRvT4EBDmHLh9cr/t5z8chOd9AYXr6e+eeX5vFkh19Q49ZVz6g a0GNYNSXX/w3WsSTPjh6pur8t+Z0+DNo8lDie8cJvHorpJG7iKMd1m5srPwVxQN+5eOw HR+w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id n3si19058906pgh.53.2019.05.13.12.31.39; Mon, 13 May 2019 12:31:56 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731347AbfEMRTZ (ORCPT + 99 others); Mon, 13 May 2019 13:19:25 -0400 Received: from mail-ot1-f67.google.com ([209.85.210.67]:45804 "EHLO mail-ot1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729503AbfEMRTZ (ORCPT ); Mon, 13 May 2019 13:19:25 -0400 Received: by mail-ot1-f67.google.com with SMTP id t24so3797219otl.12; Mon, 13 May 2019 10:19:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=gxg55zJpNlVm2nYvWvCM959D+KA++JweeXldKs1l7XI=; b=YOpx5Gfuiz7/I1GC2K2JHc/cK0drj3PAq7S03vi4BQ0Dm0RVTfhrY2YfRv92ttsQ7P 7VOZ2rOmqwSdDhptWaj1QvBXKmjLgUQKm6mzYoqqqJTLvuUTF2Sx8YBrWYVUC4C5wBqx zD9B6FhoLkY4G+ggX+lWPh9Xzzd/bTHBQWC/xhd7kG5oq02TOI0TAmBgABmuTdthmGxX EHR7dx1pP1COqYKGJsdrxvEXV2NtbAuhYUJS4Ca6GPQ2YPi9oBed6EWKI7gXGDEsgs+9 ZWG1MYDsG3VjNC0VOeh3RfuBPF7NncgvKPXBwx/qVJImV/m33xxF5UxIhrpjD5YPL1U3 OG7Q== X-Gm-Message-State: APjAAAUtHT6m/W1L/cKTa93Ro1I+GrwZy8Om2sZ7OlPZRpHbwgH2DqLF JpjoJrdaeK3FoR9IoTjt3Q== X-Received: by 2002:a05:6830:11ce:: with SMTP id v14mr15390493otq.184.1557767964113; Mon, 13 May 2019 10:19:24 -0700 (PDT) Received: from localhost (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.gmail.com with ESMTPSA id g84sm5482087oia.31.2019.05.13.10.19.22 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 13 May 2019 10:19:23 -0700 (PDT) Date: Mon, 13 May 2019 12:19:22 -0500 From: Rob Herring To: Fabien Dessenne Cc: Mark Rutland , Maxime Coquelin , Alexandre Torgue , Ohad Ben-Cohen , Bjorn Andersson , devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-remoteproc@vger.kernel.org, Loic Pallardy , Arnaud Pouliquen , Ludovic Barre , Benjamin Gaignard Subject: Re: [PATCH v3 2/8] dt-bindings: remoteproc: add bindings for stm32 remote processor driver Message-ID: <20190513171922.GA25458@bogus> References: <1556784606-3016-1-git-send-email-fabien.dessenne@st.com> <1556784606-3016-3-git-send-email-fabien.dessenne@st.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1556784606-3016-3-git-send-email-fabien.dessenne@st.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 02, 2019 at 10:10:00AM +0200, Fabien Dessenne wrote: > Add the device tree bindings document for the stm32 remoteproc devices. > > Signed-off-by: Fabien Dessenne > --- > .../devicetree/bindings/remoteproc/stm32-rproc.txt | 63 ++++++++++++++++++++++ > 1 file changed, 63 insertions(+) > create mode 100644 Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt > > diff --git a/Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt b/Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt > new file mode 100644 > index 0000000..a495757 > --- /dev/null > +++ b/Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt > @@ -0,0 +1,63 @@ > +STMicroelectronics STM32 Remoteproc > +----------------------------------- > +This document defines the binding for the remoteproc component that loads and > +boots firmwares on the ST32MP family chipset. > + > +Required properties: > +- compatible: Must be "st,stm32mp1-m4" > +- reg: Address ranges of the RETRAM and MCU SRAM memories used by the > + remote processor. > +- resets: Reference to a reset controller asserting the remote processor. > +- st,syscfg-holdboot: Reference to the system configuration which holds the > + remote processor reset hold boot > + 1st cell: phandle of syscon block > + 2nd cell: register offset containing the hold boot setting > + 3rd cell: register bitmask for the hold boot field > +- st,syscfg-tz: Reference to the system configuration which holds the RCC trust > + zone mode > + 1st cell: phandle to syscon block > + 2nd cell: register offset containing the RCC trust zone mode setting > + 3rd cell: register bitmask for the RCC trust zone mode bit > + > +Optional properties: > +- interrupts: Should contain the watchdog interrupt > +- mboxes: This property is required only if the rpmsg/virtio functionality > + is used. List of phandle and mailbox channel specifiers: > + - a channel (a) used to communicate through virtqueues with the > + remote proc. > + Bi-directional channel: > + - from local to remote = send message > + - from remote to local = send message ack > + - a channel (b) working the opposite direction of channel (a) > + - a channel (c) used by the local proc to notify the remote proc > + that it is about to be shut down. > + Unidirectional channel: > + - from local to remote, where ACK from the remote means > + that it is ready for shutdown > +- mbox-names: This property is required if the mboxes property is used. > + - must be "vq0" for channel (a) > + - must be "vq1" for channel (b) > + - must be "shutdown" for channel (c) > +- memory-region: List of phandles to the reserved memory regions associated with > + the remoteproc device. This is variable and describes the > + memories shared with the remote processor (eg: remoteproc > + firmware and carveouts, rpmsg vrings, ...). > + (see ../reserved-memory/reserved-memory.txt) > +- st,syscfg-pdds: Reference to the system configuration which holds the remote > + processor deep sleep setting > + 1st cell: phandle to syscon block > + 2nd cell: register offset containing the deep sleep setting > + 3rd cell: register bitmask for the deep sleep bit > +- st,auto_boot: If defined, when remoteproc is probed, it loads the default > + firmware and starts the remote processor. s/_/-/ > + > +Example: > + m4_rproc: m4@38000000 { > + compatible = "st,stm32mp1-m4"; > + reg = <0x00000000 0x10000>, Doesn't match the unit-address. > + <0x10000000 0x40000>, > + <0x30000000 0x40000>; > + resets = <&rcc MCU_R>; > + st,syscfg-holdboot = <&rcc 0x10C 0x1>; > + st,syscfg-tz = <&rcc 0x000 0x1>; > + }; > -- > 2.7.4 >