From patchwork Wed Aug 7 06:30:51 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lokesh Vutla X-Patchwork-Id: 2839917 Return-Path: X-Original-To: patchwork-linux-arm@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 3384B9F479 for ; Wed, 7 Aug 2013 06:31:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5E7D8201B8 for ; Wed, 7 Aug 2013 06:31:32 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4D8A0201B5 for ; Wed, 7 Aug 2013 06:31:31 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V6xHL-0002Nf-Uk; Wed, 07 Aug 2013 06:31:28 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1V6xHJ-0005G8-NH; Wed, 07 Aug 2013 06:31:25 +0000 Received: from comal.ext.ti.com ([198.47.26.152]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V6xHG-0005Fl-LB for linux-arm-kernel@lists.infradead.org; Wed, 07 Aug 2013 06:31:23 +0000 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id r776UxgA003906; Wed, 7 Aug 2013 01:30:59 -0500 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 r776Ux97021222; Wed, 7 Aug 2013 01:30:59 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.2.342.3; Wed, 7 Aug 2013 01:30:59 -0500 Received: from a0131933lt.apr.dhcp.ti.com (a0131933lt.apr.dhcp.ti.com [172.24.159.126]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r776Us7e012891; Wed, 7 Aug 2013 01:30:55 -0500 From: Lokesh Vutla To: Subject: [PATCH V2] ARM: dts: AM33xx: Add RNG node Date: Wed, 7 Aug 2013 12:00:51 +0530 Message-ID: <1375857051-8188-1-git-send-email-lokeshvutla@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1375777984-6267-4-git-send-email-lokeshvutla@ti.com> References: <1375777984-6267-4-git-send-email-lokeshvutla@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130807_023122_806679_1A527E20 X-CRM114-Status: UNSURE ( 9.27 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -6.9 (------) Cc: devicetree@vger.kernel.org, lokeshvutla@ti.com, rnayak@ti.com, Russ.Dill@ti.com, rob@landley.net, benoit.cousson@linaro.org, linux-arm-kernel@lists.infradead.org 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 AM33xx RNG module's device tree data. Also add Documentation file describing the data for the RNG module. Signed-off-by: Lokesh Vutla --- Changes since V1: - Drop "status=disabled" entry in dt node, Since RNG is present on all AM33xx platforms. .../devicetree/bindings/hwrng/omap_rng.txt | 22 ++++++++++++++++++++ arch/arm/boot/dts/am33xx.dtsi | 7 +++++++ 2 files changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwrng/omap_rng.txt diff --git a/Documentation/devicetree/bindings/hwrng/omap_rng.txt b/Documentation/devicetree/bindings/hwrng/omap_rng.txt new file mode 100644 index 0000000..6a62acd --- /dev/null +++ b/Documentation/devicetree/bindings/hwrng/omap_rng.txt @@ -0,0 +1,22 @@ +OMAP SoC HWRNG Module + +Required properties: + +- compatible : Should contain entries for this and backward compatible + RNG versions: + - "ti,omap2-rng" for OMAP2. + - "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX. + Note that these two versions are incompatible. +- ti,hwmods: Name of the hwmod associated with the RNG module +- reg : Offset and length of the register set for the module +- interrupts : the interrupt number for the RNG module. + Only used for "ti,omap4-rng". + +Example: +/* AM335x */ +rng: rng@48310000 { + compatible = "ti,omap4-rng"; + ti,hwmods = "rng"; + reg = <0x48310000 0x2000>; + interrupts = <111>; +}; diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 38b446b..26ebe30 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -530,5 +530,12 @@ #size-cells = <1>; status = "disabled"; }; + + rng: rng@48310000 { + compatible = "ti,omap4-rng"; + ti,hwmods = "rng"; + reg = <0x48310000 0x2000>; + interrupts = <111>; + }; }; };