From patchwork Wed May 7 16:18:02 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Feng Kan X-Patchwork-Id: 4130521 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 8F2D5BFF02 for ; Wed, 7 May 2014 16:22:59 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CADF320254 for ; Wed, 7 May 2014 16:22:58 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0648B20114 for ; Wed, 7 May 2014 16:22:58 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Wi4ZU-0000z1-KO; Wed, 07 May 2014 16:19:52 +0000 Received: from casper.infradead.org ([2001:770:15f::2]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Wi4ZC-0000wr-NO for linux-arm-kernel@bombadil.infradead.org; Wed, 07 May 2014 16:19:34 +0000 Received: from [192.195.68.30] (helo=denmail01.apm.com) by casper.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Wi4ZA-0001Ph-Gn for linux-arm-kernel@lists.infradead.org; Wed, 07 May 2014 16:19:33 +0000 Received: from amcc.com (svdclab154.amcc.com [10.66.12.74]) by denmail01.apm.com (8.13.8/8.13.8) with ESMTP id s47GIYuw032421; Wed, 7 May 2014 10:18:34 -0600 Received: (from fkan@localhost) by amcc.com (8.13.8/8.12.2/Submit) id s47GIY0o002688; Wed, 7 May 2014 09:18:34 -0700 From: Feng Kan To: dbaryshkov@gmail.com, catalin.marinas@arm.com, dwmw2@infradead.org, arnd@arndb.de, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, patches@apm.com Subject: [PATCH V6 3/5] Documentation: power: reset: Add documentation for generic SYSCON reboot driver Date: Wed, 7 May 2014 09:18:02 -0700 Message-Id: <1399479484-2605-4-git-send-email-fkan@apm.com> X-Mailer: git-send-email 1.7.6.1 In-Reply-To: <1399479484-2605-1-git-send-email-fkan@apm.com> References: <1399479484-2605-1-git-send-email-fkan@apm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140507_171932_794729_C0362AE6 X-CRM114-Status: GOOD ( 12.44 ) X-Spam-Score: -0.4 (/) Cc: Feng Kan X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,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 documentation for generic SYSCON reboot driver. Signed-off-by: Feng Kan --- .../bindings/power/reset/syscon-reboot.txt | 27 ++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/power/reset/syscon-reboot.txt diff --git a/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt b/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt new file mode 100644 index 0000000..79942a3 --- /dev/null +++ b/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt @@ -0,0 +1,27 @@ +Generic SYSCON mapped register reset driver + +This is a generic reset driver using syscon to map the reset register. +The reset is generally performed with a write to the reset register +defined by the register map pointed by syscon reference plus the offset +with the mask defined in the reboot node. + +Required properties: +- compatible: should contain "syscon-reboot" +- regmap: this is phandle to the register map node +- offset: offset in the register map for the reboot register (in bytes) +- mask: the reset value written to the reboot register (32 bit access) + +Default will be little endian mode, 32 bit access only. + +Examples: + regmapnode { + compatible = "apm,xgene-scu","syscon"; + reg = <0xXXXXXXXX 0xXXXXXXXX>; + } + + reboot { + compatible = "syscon-reboot"; + regmap = <®mapnode>; + offset = <0x0>; + mask = <0x1>; + };