From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,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 498D1C43381 for ; Wed, 20 Mar 2019 12:53:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 22B6F2075C for ; Wed, 20 Mar 2019 12:53:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727649AbfCTMxp (ORCPT ); Wed, 20 Mar 2019 08:53:45 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:38262 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725996AbfCTMxo (ORCPT ); Wed, 20 Mar 2019 08:53:44 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 31E02D2D643F82DD8FDE; Wed, 20 Mar 2019 20:53:42 +0800 (CST) Received: from SHA1000170415.huawei.com (100.106.92.139) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.408.0; Wed, 20 Mar 2019 20:53:35 +0800 From: Wanglai Shi To: , , , , , CC: , , , , Subject: [PATCH v2 1/3] dt-bindings: arm: coresight: Support non-configurable funnel Date: Wed, 20 Mar 2019 20:38:08 +0800 Message-ID: <1553085490-42870-2-git-send-email-shiwanglai@hisilicon.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1553085490-42870-1-git-send-email-shiwanglai@hisilicon.com> References: <1553085490-42870-1-git-send-email-shiwanglai@hisilicon.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [100.106.92.139] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Leo Yan Document DT binding for non-configurable funnel and give an example for it. Signed-off-by: Leo Yan --- .../devicetree/bindings/arm/coresight.txt | 45 +++++++++++++++++-- 1 file changed, 42 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt index f8aff65ab921..e63ec3362af8 100644 --- a/Documentation/devicetree/bindings/arm/coresight.txt +++ b/Documentation/devicetree/bindings/arm/coresight.txt @@ -8,7 +8,8 @@ through the intermediate links connecting the source to the currently selected sink. Each CoreSight component device should use these properties to describe its hardware characteristcs. -* Required properties for all components *except* non-configurable replicators: +* Required properties for all components *except* non-configurable replicators + and non-configurable funnels: * compatible: These have to be supplemented with "arm,primecell" as drivers are using the AMBA bus interface. Possible values include: @@ -24,7 +25,7 @@ its hardware characteristcs. discovered at boot time when the device is probed. "arm,coresight-tmc", "arm,primecell"; - - Trace Funnel: + - Trace Programmable Funnel: "arm,coresight-funnel", "arm,primecell"; - Embedded Trace Macrocell (version 3.x) and @@ -65,11 +66,12 @@ its hardware characteristcs. "stm-stimulus-base", each corresponding to the areas defined in "reg". * Required properties for devices that don't show up on the AMBA bus, such as - non-configurable replicators: + non-configurable replicators and non-configurable funnels: * compatible: Currently supported value is (note the absence of the AMBA markee): - "arm,coresight-replicator" + - "arm,coresight-funnel" * port or ports: see "Graph bindings for Coresight" below. @@ -200,6 +202,43 @@ Example: }; }; + funnel { + /* + * non-configurable funnel don't show up on the AMBA + * bus. As such no need to add "arm,primecell". + */ + compatible = "arm,coresight-funnel"; + clocks = <&crg_ctrl HI3660_PCLK>; + clock-names = "apb_pclk"; + + out-ports { + port { + combo_funnel_out: endpoint { + remote-endpoint = <&top_funnel_in>; + }; + }; + }; + + in-ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + combo_funnel_in0: endpoint { + remote-endpoint = <&cluster0_etf_out>; + }; + }; + + port@1 { + reg = <1>; + combo_funnel_in1: endpoint { + remote-endpoint = <&cluster1_etf_out>; + }; + }; + }; + }; + funnel@20040000 { compatible = "arm,coresight-funnel", "arm,primecell"; reg = <0 0x20040000 0 0x1000>; -- 2.17.1