From patchwork Fri Mar 14 19:25:35 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Gerlach X-Patchwork-Id: 3835011 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 063179F1CD for ; Fri, 14 Mar 2014 19:57:50 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 026F02026D for ; Fri, 14 Mar 2014 19:57:49 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (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 EF6AA20259 for ; Fri, 14 Mar 2014 19:57:47 +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 1WOXmT-0002vT-4W; Fri, 14 Mar 2014 19:28:35 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WOXlh-00070c-9r; Fri, 14 Mar 2014 19:27:45 +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 1WOXkL-0006ol-LN for linux-arm-kernel@lists.infradead.org; Fri, 14 Mar 2014 19:26:31 +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 s2EJPuhs003675; Fri, 14 Mar 2014 14:25:56 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id s2EJPuia023129; Fri, 14 Mar 2014 14:25:56 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.3.174.1; Fri, 14 Mar 2014 14:25:56 -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 s2EJPu0Y010187; Fri, 14 Mar 2014 14:25:56 -0500 Received: from localhost (lta0274052.am.dhcp.ti.com [128.247.71.78]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id s2EJPtt19008; Fri, 14 Mar 2014 14:25:55 -0500 (CDT) From: Dave Gerlach To: , , Subject: [RFC 9/9] ARM: dts: imx6q: Add opp-modifier device entry Date: Fri, 14 Mar 2014 14:25:35 -0500 Message-ID: <1394825135-60110-10-git-send-email-d-gerlach@ti.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1394825135-60110-1-git-send-email-d-gerlach@ti.com> References: <1394825135-60110-1-git-send-email-d-gerlach@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140314_152621_865419_D4BBC539 X-CRM114-Status: GOOD ( 11.26 ) X-Spam-Score: -6.9 (------) Cc: Jisheng Zhang , devicetree@vger.kernel.org, Nishanth Menon , Dave Gerlach , Viresh Kumar , Anson Huang , "Rafael J. Wysocki" , cpufreq@vger.kernel.org, kernel@pengutronix.de, Shawn Guo 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, T_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 an entry for opp_modifier which configures OPPs on imx6q. Within this nodes are defined with opp-modifier propety that are defined as a list of frequency, offset from base register, and efuse value. This is an untested example patch to show how opp-modifier could be used for this platform. Signed-off-by: Dave Gerlach --- arch/arm/boot/dts/imx6q.dtsi | 18 ++++++++++++++++++ include/dt-bindings/opp/imx.h | 17 +++++++++++++++++ 2 files changed, 35 insertions(+) create mode 100644 include/dt-bindings/opp/imx.h diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi index f024ef2..4cc48ef 100644 --- a/arch/arm/boot/dts/imx6q.dtsi +++ b/arch/arm/boot/dts/imx6q.dtsi @@ -10,6 +10,7 @@ #include "imx6q-pinfunc.h" #include "imx6qdl.dtsi" +#include / { cpus { @@ -36,6 +37,8 @@ arm-supply = <®_arm>; pu-supply = <®_pu>; soc-supply = <®_soc>; + + platform-opp-modifier = <&mpu_opp_modifier>; }; cpu@1 { @@ -140,6 +143,21 @@ clock-names = "bus", "di0", "di1"; resets = <&src 4>; }; + + opp_modifier: opp_modifier@0x021bc440 { + compatible = "opp-modifier-reg-val"; + reg = <0x021bc440 0x04>; + opp,reg-mask = <0x00030000>; + + mpu_opp_modifier: mpu_opp_modifier { + opp-modifier = < + /* kHz offset value */ + 1200000 0 OPP_OCOTP_CFG3_SPEED_1P2GHZ + 996000 0 OPP_OCOTP_CFG3_SPEED_996MHZ + >; + }; + }; + }; }; diff --git a/include/dt-bindings/opp/imx.h b/include/dt-bindings/opp/imx.h new file mode 100644 index 0000000..2700ab9 --- /dev/null +++ b/include/dt-bindings/opp/imx.h @@ -0,0 +1,17 @@ +/* + * This header provides constants for iMX SoC OPP bindings. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef __DT_BINDINGS_OPP_IMX_H__ +#define __DT_BINDINGS_OPP_IMX_H__ + +#define OPP_OCOTP_CFG3_SPEED_1P2GHZ (0x3 << 16) +#define OPP_OCOTP_CFG3_SPEED_996MHZ (0x2 << 16) +#define OPP_OCOTP_CFG3_SPEED_852MHZ (0x1 << 16) + +#endif /* __DT_BINDINGS_OPP_IMX_H__ */