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: 10839531 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 BA3E11823 for ; Tue, 5 Mar 2019 14:25:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A5D9D2B03D for ; Tue, 5 Mar 2019 14:25:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 995CB2B27D; Tue, 5 Mar 2019 14:25:23 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 49F412B286 for ; Tue, 5 Mar 2019 14:25:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hFse811Bp359WdzAryLEcArVz3FuQZAKInZtqEG11hc=; b=Z84xx0P5F7ntGu EDQ35uu66r4m6ZiMA4J7jSb6PTyuI3yNzUdKjHBACAdSja32YMweaWmW7j1bTbiGJPF5lpDHCJZh0 C14IUaql1QOz8rv+UJumofCaZ8zTBkPl758ImqElng1ySCY2DAbizD+3OYY+0Ut1d92Pdwg/cly+q CiAYJTDCmucy/e14Y5rLR90rqd6qi7l6ydCYFvJpoDtqzvUfe/4ZUtg8G6oh3/w4Jpj+2mB2Sfb/X vgzd0l7tngpbuRHDpVjWuYaVBEJHsjhP4q87gCWT7kyvq2wddaBf5GTAp+gz1xuTGBuPvZhVi70t2 ePSQnwjUm4u4gXFH6FdA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h1B0S-0000FK-Os; Tue, 05 Mar 2019 14:25:20 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h1Azn-0006gP-OL for linux-arm-kernel@lists.infradead.org; Tue, 05 Mar 2019 14:24:41 +0000 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 , , , , , 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190305_062440_082897_E9579444 X-CRM114-Status: GOOD ( 12.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ludovic Barre , Arnaud Pouliquen , Loic Pallardy , Fabien Dessenne , Benjamin Gaignard Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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 { + ... + }; +};