From patchwork Mon Nov 26 07:52:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roger Quadros X-Patchwork-Id: 10697689 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 38B1E15A8 for ; Mon, 26 Nov 2018 07:53:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2CF0F2884A for ; Mon, 26 Nov 2018 07:53:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1A81E28965; Mon, 26 Nov 2018 07:53:49 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 A011028887 for ; Mon, 26 Nov 2018 07:53:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726710AbeKZSrD (ORCPT ); Mon, 26 Nov 2018 13:47:03 -0500 Received: from fllv0015.ext.ti.com ([198.47.19.141]:41014 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726552AbeKZSrD (ORCPT ); Mon, 26 Nov 2018 13:47:03 -0500 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id wAQ7rh9k043570; Mon, 26 Nov 2018 01:53:43 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1543218823; bh=Wq3rx3PYsI4iFiwTWmGf7b0qeZ/uiC62qdIe0NzgMmM=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=tHXQ6/ih2Qi5WQozISuk6viTXN2cIbNfweHBXVdBdDonfKUK2ARQUw6Hz+mF1NHkU 27VZ/uB20NNl10pckTSAAhynn8kkKWaLa2g3xCindPIWs8NGL7ZSu7cc/C8q6mfhc3 F9yp08qCTq88lou35+jNWkKunDo/wbJ99CMqlYFU= Received: from DFLE109.ent.ti.com (dfle109.ent.ti.com [10.64.6.30]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id wAQ7rhOU059915 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 26 Nov 2018 01:53:43 -0600 Received: from DFLE103.ent.ti.com (10.64.6.24) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1591.10; Mon, 26 Nov 2018 01:53:43 -0600 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE103.ent.ti.com (10.64.6.24) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1591.10 via Frontend Transport; Mon, 26 Nov 2018 01:53:43 -0600 Received: from dlelxv97.itg.ti.com (dlelxv97.itg.ti.com [172.17.2.193]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id wAQ7rh2U007296; Mon, 26 Nov 2018 01:53:43 -0600 Received: from localhost.localdomain (vboxa0400828d.dhcp.ti.com [172.22.237.3]) by dlelxv97.itg.ti.com (8.14.3/8.13.8) with ESMTP id wAQ7qn1Q024490; Mon, 26 Nov 2018 01:53:39 -0600 From: Roger Quadros To: , CC: , , , , , , , , , , , , , , , Subject: [PATCH 12/16] dt-bindings: remoteproc: ti-pruss: Document application node bindings Date: Mon, 26 Nov 2018 09:52:45 +0200 Message-ID: <1543218769-5507-13-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1543218769-5507-1-git-send-email-rogerq@ti.com> References: <1543218769-5507-1-git-send-email-rogerq@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 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 From: Tero Kristo Add documentation for the Texas Instruments PRU application nodes. These are used to configure specific user applications for PRU instances. Signed-off-by: Tero Kristo [s-anna@ti.com: some binding updates] Signed-off-by: Suman Anna Signed-off-by: Roger Quadros --- .../devicetree/bindings/soc/ti/ti,pruss.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/ti/ti,pruss.txt b/Documentation/devicetree/bindings/soc/ti/ti,pruss.txt index 3e5f32f..94c91ee 100644 --- a/Documentation/devicetree/bindings/soc/ti/ti,pruss.txt +++ b/Documentation/devicetree/bindings/soc/ti/ti,pruss.txt @@ -210,6 +210,38 @@ used in TI Davinci SoCs. Please refer to the corresponding binding document, Documentation/devicetree/bindings/net/davinci-mdio.txt for details. +Application/User Nodes +======================= +A PRU application/user node typically uses one or more PRU device nodes to +implement a PRU application/functionality. Each application/client node would +need a reference to at least a PRU node, and optionally pass some configuration +parameters. + +Required Properties: +-------------------- +- prus : phandles to the PRU nodes used + +Optional Properties: +-------------------- +- firmware-name : firmwares for the PRU cores, the default firmware + for the core from the PRU node will be used if not + provided. The firmware names should correspond to + the PRU cores listed in the 'prus' property +- ti,pruss-gp-mux-sel : array of values for the GP_MUX_SEL under PRUSS_GPCFG + register for a PRU. This selects the internal muxing + scheme for the PRU instance. If not provided, the + default out-of-reset value (0) for the PRU core is + used. Values should correspond to the PRU cores listed + in the 'prus' property +- ti,pru-interrupt-map : PRU interrupt mappings, containing an array of entries + with each entry consisting of 4 cell-values. First one + is an index towards the "prus" property to identify the + PRU core for the interrupt map, second is the PRU + System Event id, third is the PRU interrupt channel id + and fourth is the PRU host interrupt id. If provided, + this map will supercede any other configuration + provided through firmware + Example: ======== 1. /* AM33xx PRU-ICSS */ @@ -397,3 +429,14 @@ Example: ... }; }; + +3: /* PRU application node example */ + app_node: app_node { + prus = <&pru1_0>, <&pru1_1>; + firmware-name = "pruss-app-fw", "pruss-app-fw-2"; + ti,pruss-gp-mux-sel = <2>, <1>; + /* setup interrupts for prus: + prus[0] => pru1_0: ev=16, chnl=2, host-irq=7, + prus[1] => pru1_1: ev=19, chnl=1, host-irq=3 */ + ti,pru-interrupt-map = <0 16 2 7 >, <1 19 1 3>; + }