From patchwork Thu Mar 5 03:53:59 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Gerlach X-Patchwork-Id: 446557 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id C6450140161 for ; Thu, 5 Mar 2015 14:55:54 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752038AbbCEDzL (ORCPT ); Wed, 4 Mar 2015 22:55:11 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:47968 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750945AbbCEDzJ (ORCPT ); Wed, 4 Mar 2015 22:55:09 -0500 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id t253sin7005674; Wed, 4 Mar 2015 21:54:44 -0600 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id t253shvP029487; Wed, 4 Mar 2015 21:54:43 -0600 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.224.2; Wed, 4 Mar 2015 21:54:43 -0600 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id t253shlH032076; Wed, 4 Mar 2015 21:54:43 -0600 Received: from localhost (j-172-22-175-66.vpn.ti.com [172.22.175.66]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id t253sg907683; Wed, 4 Mar 2015 21:54:42 -0600 (CST) From: Dave Gerlach To: , , , CC: Ohad Ben-Cohen , Suman Anna , Kevin Hilman , Tony Lindgren , Felipe Balbi , Dave Gerlach Subject: [PATCH v2 2/3] Documentation: dt: add ti,am3353-wkup-m3 bindings Date: Wed, 4 Mar 2015 21:53:59 -0600 Message-ID: <1425527640-2690-3-git-send-email-d-gerlach@ti.com> X-Mailer: git-send-email 2.3.0 In-Reply-To: <1425527640-2690-1-git-send-email-d-gerlach@ti.com> References: <1425527640-2690-1-git-send-email-d-gerlach@ti.com> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add the device tree bindings document for ti,am3353-wkup-m3 which is used by the wkup_m3_rproc driver. Signed-off-by: Dave Gerlach --- .../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..995af3d --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt @@ -0,0 +1,46 @@ +Wakeup M3 Remoteproc Driver +=========================== + +TI AMx3 family of 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. The wkup_m3 remoteproc driver handles +the loading of the firmware and booting of the CM3. + +Wkup M3 Device Node: +==================== +A wkup_m3 device node is used to represent a wakeup M3 IP instance within +a SoC. + +Required properties: +-------------------- +- compatible: Should be: + "ti,am3353-wkup-m3" for AM33xx SoCs + "ti,am4372-wkup-m3" for AM43xx SoCs +- reg: Contains the wkup_m3 register address ranges for + umem and dmem, from the devices address space. + NOTE: Parent node must contains ranges specifying + mapping from bus address space to device + address space. +- ti,hwmods: Name of the hwmod associated with the mailbox +- ti,pm-firmware: Name of firmware file to load for remoteproc. + +Example: +-------- +/* AM33xx */ +soc { + compatible = "ti,omap-infra"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x44d00000 0x4000>, + <0x80000 0x44d80000 0x2000>; + + ... + + wkup_m3: wkup_m3@44d00000 { + compatible = "ti,am3353-wkup-m3"; + reg = <0x0 0x4000 /* M3 UMEM */ + 0x80000 0x2000>; /* M3 DMEM */ + ti,hwmods = "wkup_m3"; + ti,pm-firmware = "am335x-pm-firmware.elf"; + }; +};