From patchwork Tue Jun 11 02:47:30 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dinh Nguyen X-Patchwork-Id: 2699751 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) by patchwork1.kernel.org (Postfix) with ESMTP id EBEA83FD4E for ; Tue, 11 Jun 2013 02:50:37 +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 1UmEdq-00031n-MQ; Tue, 11 Jun 2013 02:49:03 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UmEdU-0000jC-Ul; Tue, 11 Jun 2013 02:48:40 +0000 Received: from co1ehsobe006.messaging.microsoft.com ([216.32.180.189] helo=co1outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UmEcy-0000fM-Ko for linux-arm-kernel@lists.infradead.org; Tue, 11 Jun 2013 02:48:15 +0000 Received: from mail112-co1-R.bigfish.com (10.243.78.228) by CO1EHSOBE036.bigfish.com (10.243.66.101) with Microsoft SMTP Server id 14.1.225.23; Tue, 11 Jun 2013 02:47:47 +0000 Received: from mail112-co1 (localhost [127.0.0.1]) by mail112-co1-R.bigfish.com (Postfix) with ESMTP id E412E900084; Tue, 11 Jun 2013 02:47:46 +0000 (UTC) X-Forefront-Antispam-Report: CIP:66.35.236.232; KIP:(null); UIP:(null); IPV:NLI; H:SJ-ITEXEDGE02.altera.priv.altera.com; RD:none; EFVD:NLI X-SpamScore: 0 X-BigFish: VS0(zzzz1f42h1ee6h1de0h1fdah1202h1e76h1d1ah1d2ah1fc6hzz8275ch8275bhz2fh2a8h668h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h14ddh1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1d0ch1d2eh1d3fh1dfeh1dffh1e1dh1e23h1155h) Received-SPF: pass (mail112-co1: domain of altera.com designates 66.35.236.232 as permitted sender) client-ip=66.35.236.232; envelope-from=dinguyen@altera.com; helo=SJ-ITEXEDGE02.altera.priv.altera.com ; v.altera.com ; Received: from mail112-co1 (localhost.localdomain [127.0.0.1]) by mail112-co1 (MessageSwitch) id 1370918864700525_7513; Tue, 11 Jun 2013 02:47:44 +0000 (UTC) Received: from CO1EHSMHS029.bigfish.com (unknown [10.243.78.253]) by mail112-co1.bigfish.com (Postfix) with ESMTP id A7CDF94004F; Tue, 11 Jun 2013 02:47:44 +0000 (UTC) Received: from SJ-ITEXEDGE02.altera.priv.altera.com (66.35.236.232) by CO1EHSMHS029.bigfish.com (10.243.66.39) with Microsoft SMTP Server (TLS) id 14.1.225.23; Tue, 11 Jun 2013 02:47:44 +0000 Received: from sj-mail01.altera.com (137.57.1.6) by SJ-ITEXEDGE02.altera.priv.altera.com (66.35.236.232) with Microsoft SMTP Server id 8.3.298.1; Mon, 10 Jun 2013 19:37:37 -0700 Received: from linux-builds1.altera.com (linux-builds1.altera.com [137.57.188.121]) by sj-mail01.altera.com (8.13.7+Sun/8.13.7) with ESMTP id r5B2lbeB008627; Mon, 10 Jun 2013 19:47:43 -0700 (PDT) From: To: Subject: [PATCHv8 2/6] ARM: socfpga: dts: Add gate-clock bindings Date: Mon, 10 Jun 2013 21:47:30 -0500 Message-ID: <1370918854-1765-3-git-send-email-dinguyen@altera.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1370918854-1765-1-git-send-email-dinguyen@altera.com> References: <1370918854-1765-1-git-send-email-dinguyen@altera.com> MIME-Version: 1.0 X-OriginatorOrg: altera.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130610_224809_068797_7C578EFE X-CRM114-Status: GOOD ( 10.43 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [216.32.180.189 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: dinh.linux@gmail.com, arnd@arndb.de, Pavel Machek , linux-arm-kernel@lists.infradead.org, olof@lixom.net, Dinh Nguyen 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 From: Dinh Nguyen Add bindings for "socfpga-gate-clk" clocks. These clocks directly feed the peripherals. Signed-off-by: Dinh Nguyen Reviewed-by: Pavel Machek CC: Arnd Bergmann CC: Olof Johansson Cc: Pavel Machek CC: --- .../devicetree/bindings/clock/altr_socfpga.txt | 7 + arch/arm/boot/dts/socfpga.dtsi | 199 ++++++++++++++++++++ 2 files changed, 206 insertions(+) diff --git a/Documentation/devicetree/bindings/clock/altr_socfpga.txt b/Documentation/devicetree/bindings/clock/altr_socfpga.txt index bd0c841..0045433 100644 --- a/Documentation/devicetree/bindings/clock/altr_socfpga.txt +++ b/Documentation/devicetree/bindings/clock/altr_socfpga.txt @@ -9,6 +9,9 @@ Required properties: "altr,socfpga-pll-clock" - for a PLL clock "altr,socfpga-perip-clock" - The peripheral clock divided from the PLL clock. + "altr,socfpga-gate-clk" - Clocks that directly feed peripherals and + can get gated. + - reg : shall be the control register offset from CLOCK_MANAGER's base for the clock. - clocks : shall be the input parent clock phandle for the clock. This is either an oscillator or a pll output. @@ -16,3 +19,7 @@ Required properties: Optional properties: - fixed-divider : If clocks have a fixed divider value, use this property. +- clk-gate : For "socfpga-gate-clk", clk-gate contains the gating register + and the bit index. +- div-reg : For "socfpga-gate-clk", div-reg contains the divider register, bit shift, + and width. diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi index 02bb425..bee62a2 100644 --- a/arch/arm/boot/dts/socfpga.dtsi +++ b/arch/arm/boot/dts/socfpga.dtsi @@ -95,6 +95,12 @@ compatible = "fixed-clock"; }; + f2s_periph_ref_clk: f2s_periph_ref_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <10000000>; + }; + main_pll: main_pll { #address-cells = <1>; #size-cells = <0>; @@ -236,6 +242,199 @@ reg = <0xD4>; }; }; + + mpu_periph_clk: mpu_periph_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&mpuclk>; + fixed-divider = <4>; + }; + + mpu_l2_ram_clk: mpu_l2_ram_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&mpuclk>; + fixed-divider = <2>; + }; + + l4_main_clk: l4_main_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&mainclk>; + clk-gate = <0x60 0>; + }; + + l3_main_clk: l3_main_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&mainclk>; + }; + + l3_mp_clk: l3_mp_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&mainclk>; + div-reg = <0x64 0 2>; + clk-gate = <0x60 1>; + }; + + l3_sp_clk: l3_sp_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&mainclk>; + div-reg = <0x64 2 2>; + }; + + l4_mp_clk: l4_mp_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&mainclk>, <&per_base_clk>; + div-reg = <0x64 4 3>; + clk-gate = <0x60 2>; + }; + + l4_sp_clk: l4_sp_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&mainclk>, <&per_base_clk>; + div-reg = <0x64 7 3>; + clk-gate = <0x60 3>; + }; + + dbg_at_clk: dbg_at_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&dbg_base_clk>; + div-reg = <0x68 0 2>; + clk-gate = <0x60 4>; + }; + + dbg_clk: dbg_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&dbg_base_clk>; + div-reg = <0x68 2 2>; + clk-gate = <0x60 5>; + }; + + dbg_trace_clk: dbg_trace_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&dbg_base_clk>; + div-reg = <0x6C 0 3>; + clk-gate = <0x60 6>; + }; + + dbg_timer_clk: dbg_timer_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&dbg_base_clk>; + clk-gate = <0x60 7>; + }; + + cfg_clk: cfg_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&cfg_s2f_usr0_clk>; + clk-gate = <0x60 8>; + }; + + s2f_user0_clk: s2f_user0_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&cfg_s2f_usr0_clk>; + clk-gate = <0x60 9>; + }; + + emac_0_clk: emac_0_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&emac0_clk>; + clk-gate = <0xa0 0>; + }; + + emac_1_clk: emac_1_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&emac1_clk>; + clk-gate = <0xa0 1>; + }; + + usb_mp_clk: usb_mp_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&per_base_clk>; + clk-gate = <0xa0 2>; + div-reg = <0xa4 0 3>; + }; + + spi_m_clk: spi_m_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&per_base_clk>; + clk-gate = <0xa0 3>; + div-reg = <0xa4 3 3>; + }; + + can0_clk: can0_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&per_base_clk>; + clk-gate = <0xa0 4>; + div-reg = <0xa4 6 3>; + }; + + can1_clk: can1_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&per_base_clk>; + clk-gate = <0xa0 5>; + div-reg = <0xa4 9 3>; + }; + + gpio_db_clk: gpio_db_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&per_base_clk>; + clk-gate = <0xa0 6>; + div-reg = <0xa8 0 24>; + }; + + s2f_user1_clk: s2f_user1_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&s2f_usr1_clk>; + clk-gate = <0xa0 7>; + }; + + sdmmc_clk: sdmmc_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>; + clk-gate = <0xa0 8>; + }; + + nand_x_clk: nand_x_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>; + clk-gate = <0xa0 9>; + }; + + nand_clk: nand_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>; + clk-gate = <0xa0 10>; + fixed-divider = <4>; + }; + + qspi_clk: qspi_clk { + #clock-cells = <0>; + compatible = "altr,socfpga-gate-clk"; + clocks = <&f2s_periph_ref_clk>, <&main_qspi_clk>, <&per_qspi_clk>; + clk-gate = <0xa0 11>; + }; }; };