From patchwork Fri Jul 11 02:55:43 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Gerlach X-Patchwork-Id: 4529641 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 958129F26C for ; Fri, 11 Jul 2014 02:57:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BB47C201EC for ; Fri, 11 Jul 2014 02:57:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5A3F1201BC for ; Fri, 11 Jul 2014 02:57:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751997AbaGKC5g (ORCPT ); Thu, 10 Jul 2014 22:57:36 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:35346 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751854AbaGKC5g (ORCPT ); Thu, 10 Jul 2014 22:57:36 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id s6B2vHot015046; Thu, 10 Jul 2014 21:57:17 -0500 Received: from DLEE70.ent.ti.com (dlemailx.itg.ti.com [157.170.170.113]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id s6B2vH2n023973; Thu, 10 Jul 2014 21:57:17 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.174.1; Thu, 10 Jul 2014 21:57:16 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id s6B2vGIb015219; Thu, 10 Jul 2014 21:57:16 -0500 Received: from localhost (j-172-22-132-241.vpn.ti.com [172.22.132.241]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id s6B2vGt15879; Thu, 10 Jul 2014 21:57:16 -0500 (CDT) From: Dave Gerlach To: , CC: Paul Walmsley , Kevin Hilman , Tony Lindgren , Tero Kristo , Nishanth Menon , Russ Dill , Santosh Shilimkar , Daniel Mack , Suman Anna , Benoit Cousson , Dave Gerlach , Ohad Ben-Cohen Subject: [PATCH v4 05/11] Documentation: dt: add ti,am3353_wkup_m3 bindings Date: Thu, 10 Jul 2014 21:55:43 -0500 Message-ID: <1405047349-15101-6-git-send-email-d-gerlach@ti.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1405047349-15101-1-git-send-email-d-gerlach@ti.com> References: <1405047349-15101-1-git-send-email-d-gerlach@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add the device tree bindings document for am3353 wkup_m3. Signed-off-by: Dave Gerlach CC: Ohad Ben-Cohen CC: Benoit Cousson --- .../bindings/remoteproc/wkup_m3_rproc.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt diff --git a/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt b/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt new file mode 100644 index 0000000..e9dd909 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt @@ -0,0 +1,46 @@ +Wakeup M3 Remote Proc Driver +===================== + +TI AMx3 Family devices use a Cortex M3 co-processor to help with various +low power tasks that cannot be controlled from the MPU. The CM3 requires +a firmware binary to accomplish this and communicates with the MPU through +IPC registers present in the SoCs control module. The wkup_m3 remoteproc +driver handles the loading of the firmware and exposes an API to +communicate with the wkup_m3 through the use of the IPC registers and a +mailbox. + +Wkup M3 Device Node: +==================== +A wkup_m3 device node is used to represent a wakeup M3 IP instance within +a SoC. The sub-mailboxes are represented as child node of this parent node. + +Required properties: +-------------------- +- compatible: Should be "ti,am3353-wkup-m3" for AM33xx SoCs +- reg: Contains the wkup_m3 register address ranges for + umem, dmem, and ipc-regs. +- reg-names: Names for reg addresses given above +- interrupts: Contains the interrupt information for the wkup_m3 + interrupt that signals the MPU. +- ti,hwmods: Name of the hwmod associated with the mailbox +- ti,no-reset-on-init: Reset is handled after fw has been loaded, not at + init of hwmod. +- mbox-names: Name of the mbox channel for the IPC framework +- mbox: Phandle used by IPC framework to get correct mbox + channel for communication. + +Example: +-------- +/* AM33xx */ +wkup_m3: wkup_m3@44d00000 { + compatible = "ti,am3353-wkup-m3"; + reg = <0x44d00000 0x4000 + 0x44d80000 0x2000 + 0x44e11324 0x0024>; + reg-names = "m3_umem", "m3_dmem", "ipc_regs"; + interrupts = <78>; + ti,hwmods = "wkup_m3"; + ti,no-reset-on-init; + mbox-names = "wkup_m3"; + mbox = <&mailbox &mbox_wkupm3>; +};