From patchwork Tue Dec 3 12:28:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biwen Li X-Patchwork-Id: 1203664 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=nxp.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47S1WK2TbTz9sRG for ; Tue, 3 Dec 2019 23:29:17 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726395AbfLCM3L (ORCPT ); Tue, 3 Dec 2019 07:29:11 -0500 Received: from inva021.nxp.com ([92.121.34.21]:42532 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726318AbfLCM3L (ORCPT ); Tue, 3 Dec 2019 07:29:11 -0500 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 9F166200376; Tue, 3 Dec 2019 13:29:09 +0100 (CET) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 20643200367; Tue, 3 Dec 2019 13:29:05 +0100 (CET) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id B4AF9402F3; Tue, 3 Dec 2019 20:28:58 +0800 (SGT) From: Biwen Li To: leoyang.li@nxp.com, shawnguo@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, ran.wang_1@nxp.com Cc: linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Biwen Li Subject: [v5 3/3] Documentation: dt: binding: fsl: Add 'fsl, ippdexpcr1-alt-addr' property Date: Tue, 3 Dec 2019 20:28:18 +0800 Message-Id: <20191203122818.21941-3-biwen.li@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191203122818.21941-1-biwen.li@nxp.com> References: <20191203122818.21941-1-biwen.li@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The 'fsl,ippdexpcr1-alt-addr' property is used to handle an errata A-008646 on LS1021A Signed-off-by: Biwen Li Reviewed-by: Rob Herring --- Change in v5: - none Change in v4: - rename property name fsl,ippdexpcr-alt-addr -> fsl,ippdexpcr1-alt-addr Change in v3: - rename property name fsl,rcpm-scfg -> fsl,ippdexpcr-alt-addr Change in v2: - update desc of the property 'fsl,rcpm-scfg' .../devicetree/bindings/soc/fsl/rcpm.txt | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt index 5a33619d881d..751a7655b694 100644 --- a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt +++ b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt @@ -34,6 +34,13 @@ Chassis Version Example Chips Optional properties: - little-endian : RCPM register block is Little Endian. Without it RCPM will be Big Endian (default case). + - fsl,ippdexpcr1-alt-addr : The property is related to a hardware issue + on SoC LS1021A and only needed on SoC LS1021A. + Must include 1 + 2 entries. + The first entry must be a link to the SCFG device node. + The non-first entry must be offset of registers of SCFG. + The second and third entry compose an alt offset address + for IPPDEXPCR1(SCFG_SPARECR8) Example: The RCPM node for T4240: @@ -43,6 +50,20 @@ The RCPM node for T4240: #fsl,rcpm-wakeup-cells = <2>; }; +The RCPM node for LS1021A: + rcpm: rcpm@1ee2140 { + compatible = "fsl,ls1021a-rcpm", "fsl,qoriq-rcpm-2.1+"; + reg = <0x0 0x1ee2140 0x0 0x8>; + #fsl,rcpm-wakeup-cells = <2>; + + /* + * The second and third entry compose an alt offset + * address for IPPDEXPCR1(SCFG_SPARECR8) + */ + fsl,ippdexpcr1-alt-addr = <&scfg 0x0 0x51c>; + }; + + * Freescale RCPM Wakeup Source Device Tree Bindings ------------------------------------------- Required fsl,rcpm-wakeup property should be added to a device node if the device