From patchwork Tue Mar 5 14:24:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabien DESSENNE X-Patchwork-Id: 10839537 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4CEE5139A for ; Tue, 5 Mar 2019 14:25:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3BD262B03D for ; Tue, 5 Mar 2019 14:25:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2FDD72B286; Tue, 5 Mar 2019 14:25:26 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D21042B27D for ; Tue, 5 Mar 2019 14:25:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728049AbfCEOZZ (ORCPT ); Tue, 5 Mar 2019 09:25:25 -0500 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:4120 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728366AbfCEOYo (ORCPT ); Tue, 5 Mar 2019 09:24:44 -0500 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x25EHw2q028713; Tue, 5 Mar 2019 15:24:28 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-00178001.pphosted.com with ESMTP id 2qyhgasy0a-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Tue, 05 Mar 2019 15:24:28 +0100 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 90C2D31; Tue, 5 Mar 2019 14:24:27 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas23.st.com [10.75.90.46]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 6C7802CF7; Tue, 5 Mar 2019 14:24:27 +0000 (GMT) Received: from SAFEX1HUBCAS24.st.com (10.75.90.95) by SAFEX1HUBCAS23.st.com (10.75.90.46) with Microsoft SMTP Server (TLS) id 14.3.361.1; Tue, 5 Mar 2019 15:24:27 +0100 Received: from localhost (10.201.23.25) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.361.1; Tue, 5 Mar 2019 15:24:26 +0100 From: Fabien Dessenne To: Rob Herring , Mark Rutland , Maxime Coquelin , Alexandre Torgue , Ohad Ben-Cohen , Bjorn Andersson , , , , , CC: Fabien Dessenne , Loic Pallardy , Arnaud Pouliquen , "Ludovic Barre" , Benjamin Gaignard Subject: [PATCH 1/8] dt-bindings: stm32: add bindings for ML-AHB interconnect Date: Tue, 5 Mar 2019 15:24:02 +0100 Message-ID: <1551795849-13672-2-git-send-email-fabien.dessenne@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1551795849-13672-1-git-send-email-fabien.dessenne@st.com> References: <1551795849-13672-1-git-send-email-fabien.dessenne@st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.23.25] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-03-05_08:,, signatures=0 Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Document the ML-AHB interconnect for stm32 SoCs. Signed-off-by: Fabien Dessenne --- .../devicetree/bindings/arm/stm32/mlahb.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/stm32/mlahb.txt diff --git a/Documentation/devicetree/bindings/arm/stm32/mlahb.txt b/Documentation/devicetree/bindings/arm/stm32/mlahb.txt new file mode 100644 index 0000000..880cb38 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/stm32/mlahb.txt @@ -0,0 +1,30 @@ +ML-AHB interconnect bindings + +These bindings describe the STM32 SoCs ML-AHB interconnect bus which connects +a Cortex-M subsystem with dedicated memories. + +Required properties: +- compatible: should be "simple-bus" +- ranges: describes memory addresses translation between the local CPU and the + remote Cortex-M processor. Each memory region, is declared with 3 + parameters: + - param 1: device base address (Cortex-M processor address) + - param 2: physical base address (local CPU address) + - param 3: size of the memory region. + +The Cortex-M remote processor accessed via the mlahb interconnect is described +by a child node. + +Example: +mlahb: mlahb@0 { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x00000000 0x38000000 0x10000>, + <0x10000000 0x10000000 0x60000>, + <0x30000000 0x30000000 0x60000>; + + m4_rproc: m4@0 { + ... + }; +};