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Tue, 16 Oct 2018 15:57:42 +0000 From: Leonard Crestez To: Shawn Guo , Fabio Estevam Subject: [PATCH v3 1/4] dt-bindings: crypto: Mention clocks for mxs-dcp Thread-Topic: [PATCH v3 1/4] dt-bindings: crypto: Mention clocks for mxs-dcp Thread-Index: AQHUZWj4s/V2RkIUakasV64CzI8Mzg== Date: Tue, 16 Oct 2018 15:57:42 +0000 Message-ID: <1861b16b6e760000ef42b0642c946a14f1fba95f.1539705285.git.leonard.crestez@nxp.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [95.76.156.53] x-mailer: git-send-email 2.17.1 x-clientproxiedby: AM6P193CA0008.EURP193.PROD.OUTLOOK.COM (2603:10a6:209:3e::21) To AM0PR04MB4290.eurprd04.prod.outlook.com (2603:10a6:208:67::17) authentication-results: spf=none (sender IP is ) smtp.mailfrom=leonard.crestez@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; AM0PR04MB4019; 6:Vb9/OA4gTvqqIa+p+EroSuHR0Oi0kpjZ9/IVLHjAMQ9Aj6EO6ITGXZLIffiKRH+A2EppKR9DkJaRhzvoDpaEQSCLDpgaUIRJlTE4mLnygKnHxinCrLFB4F/G9fTJarU61SM9dH8VOrIsU9dWMxi1rkWEkbyqVY+kgCxCjhGiqQC6X/INeAqaLnjQ/3F5sJ66Zdq97MlaLbAs+MAd6zSMP4fvyOVInG/quaaA8Tw538y+oJsoG1lnX1QkOq5ZoW193H8WqaAUzBL4StYWkj77EUoVE0Nr2bzwq6nmoDRIbj+D1sj3sub/JlKOe03ogoQlFqQishtvMnXc37c5dLJhwAQgVFnMrjOOs+tC1/RFka/CyJb7uoehADHb6dEIxTvCwhdqgOjw3FqifU7AmPgAPo5cBtGiFU1Vt0/afFW+NMjmEFoaVWPnfYJJnxKqvTB2EpbkfDDZScn+dHe3puOq0g==; 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Miller " , "linux-arm-kernel@lists.infradead.org" , dl-linux-imx Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Explicit clock enabling is required on 6sll and 6ull so mention that standard clock bindings are used. Signed-off-by: Leonard Crestez Reviewed-by: Fabio Estevam --- Documentation/devicetree/bindings/crypto/fsl-dcp.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/crypto/fsl-dcp.txt b/Documentation/devicetree/bindings/crypto/fsl-dcp.txt index 76a0b4e80e83..4e4d387e38a5 100644 --- a/Documentation/devicetree/bindings/crypto/fsl-dcp.txt +++ b/Documentation/devicetree/bindings/crypto/fsl-dcp.txt @@ -4,10 +4,12 @@ Required properties: - compatible : Should be "fsl,-dcp" - reg : Should contain MXS DCP registers location and length - interrupts : Should contain MXS DCP interrupt numbers, VMI IRQ and DCP IRQ must be supplied, optionally Secure IRQ can be present, but is currently not implemented and not used. +- clocks : Clock reference (only required on some SOCs: 6ull and 6sll). +- clock-names : Must be "dcp". Example: dcp@80028000 { compatible = "fsl,imx28-dcp", "fsl,imx23-dcp"; From patchwork Tue Oct 16 15:57:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 10643847 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6368F1057 for ; Tue, 16 Oct 2018 16:00:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 06A582A4CC for ; Tue, 16 Oct 2018 16:00:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 00B5C2A487; Tue, 16 Oct 2018 16:00:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id EAE4C2A4BB for ; 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Tue, 16 Oct 2018 15:57:43 +0000 From: Leonard Crestez To: Shawn Guo , Fabio Estevam Subject: [PATCH v3 2/4] crypto: mxs-dcp - Add support for dcp clk Thread-Topic: [PATCH v3 2/4] crypto: mxs-dcp - Add support for dcp clk Thread-Index: AQHUZWj5i/DYKbq7fkKcieuhPA7M6A== Date: Tue, 16 Oct 2018 15:57:43 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [95.76.156.53] x-mailer: git-send-email 2.17.1 x-clientproxiedby: AM6P193CA0008.EURP193.PROD.OUTLOOK.COM (2603:10a6:209:3e::21) To AM0PR04MB4290.eurprd04.prod.outlook.com (2603:10a6:208:67::17) authentication-results: spf=none (sender IP is ) smtp.mailfrom=leonard.crestez@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; AM0PR04MB4019; 6:L77Xtm2mDUPQUTN8Nrjwvrg53qPm5QxbItS/PqQMm2QHyNtdWKQk8vocbljjPnMwNJhJ0YxoK/2vCqUPJXmU/y72RCDSDopbJcFNRGxZDoYxO5NYbKSJloVUB0K6q2miQqtVZWlk6kdrvgkGDJnCrjy6ewtu7weudve6AY9GyMJd/OOCZOxkaES2/SBoCg7xU7N11Sbw6Qiu3vjfggkUtAGbsSyqDn1jUo3Rx3w+UbUXDgRwe/0K/3nYNP5XvesrHUaXC+BTr33N7r0cOgZ6o6GbsZPYgH3X4nXo37x9TxOpz9mAtVo5tltzMkH0vI1h8sqiRLPE56sjYQEy8Wj2ppB71ZuotIevD3LiC0aPvKhA+osKYQCC3ivfk0+sXu95wXxTlTINSLCooLjWVOLHrRSOJWVfSokQ6/775jTUg8t9SoMngF2C9IezicbWyEuCB9UlU/lsMDDdl9975OTVBA==; 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Miller " , "linux-arm-kernel@lists.infradead.org" , dl-linux-imx Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP On 6ull and 6sll the DCP block has a clock which needs to be explicitly enabled. Add minimal handling for this at probe/remove time. Signed-off-by: Leonard Crestez --- drivers/crypto/mxs-dcp.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c index 4e6ff32f8a7e..a9855f622e05 100644 --- a/drivers/crypto/mxs-dcp.c +++ b/drivers/crypto/mxs-dcp.c @@ -18,10 +18,11 @@ #include #include #include #include #include +#include #include #include #include #include @@ -80,10 +81,11 @@ struct dcp { struct completion completion[DCP_MAX_CHANS]; spinlock_t lock[DCP_MAX_CHANS]; struct task_struct *thread[DCP_MAX_CHANS]; struct crypto_queue queue[DCP_MAX_CHANS]; + struct clk *dcp_clk; }; enum dcp_chan { DCP_CHAN_HASH_SHA = 0, DCP_CHAN_CRYPTO = 2, @@ -1027,10 +1029,21 @@ static int mxs_dcp_probe(struct platform_device *pdev) sdcp->dev = dev; sdcp->base = devm_ioremap_resource(dev, iores); if (IS_ERR(sdcp->base)) return PTR_ERR(sdcp->base); + /* DCP clock is optional, only used on some SOCs */ + sdcp->dcp_clk = devm_clk_get(dev, "dcp"); + if (IS_ERR(sdcp->dcp_clk)) { + if (sdcp->dcp_clk != ERR_PTR(-ENOENT)) + return PTR_ERR(sdcp->dcp_clk); + sdcp->dcp_clk = NULL; + } + + ret = clk_prepare_enable(sdcp->dcp_clk); + if (ret) + return ret; ret = devm_request_irq(dev, dcp_vmi_irq, mxs_dcp_irq, 0, "dcp-vmi-irq", sdcp); if (ret) { dev_err(dev, "Failed to claim DCP VMI IRQ!\n"); @@ -1168,10 +1181,12 @@ static int mxs_dcp_remove(struct platform_device *pdev) crypto_unregister_algs(dcp_aes_algs, ARRAY_SIZE(dcp_aes_algs)); kthread_stop(sdcp->thread[DCP_CHAN_HASH_SHA]); kthread_stop(sdcp->thread[DCP_CHAN_CRYPTO]); + clk_disable_unprepare(sdcp->dcp_clk); + platform_set_drvdata(pdev, NULL); global_sdcp = NULL; return 0; From patchwork Tue Oct 16 15:57:44 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 10643851 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 75AE11508 for ; Tue, 16 Oct 2018 16:01:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6198A2A46F for ; 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Miller " , "linux-arm-kernel@lists.infradead.org" , dl-linux-imx Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The DCP block on 6ull has no major differences other than requiring explicit clock enabling. Signed-off-by: Leonard Crestez Reviewed-by: Fabio Estevam --- arch/arm/boot/dts/imx6ull.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/imx6ull.dtsi b/arch/arm/boot/dts/imx6ull.dtsi index 796ed35d4ac9..f3668fe69eac 100644 --- a/arch/arm/boot/dts/imx6ull.dtsi +++ b/arch/arm/boot/dts/imx6ull.dtsi @@ -37,10 +37,20 @@ #address-cells = <1>; #size-cells = <1>; reg = <0x02200000 0x100000>; ranges; + dcp: crypto@2280000 { + compatible = "fsl,imx6ull-dcp", "fsl,imx28-dcp"; + reg = <0x02280000 0x4000>; + interrupts = , + , + ; + clocks = <&clks IMX6ULL_CLK_DCP_CLK>; + clock-names = "dcp"; + }; + iomuxc_snvs: iomuxc-snvs@2290000 { compatible = "fsl,imx6ull-iomuxc-snvs"; reg = <0x02290000 0x4000>; }; From patchwork Tue Oct 16 15:57:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 10643845 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8DE3D157A for ; 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Miller " , "linux-arm-kernel@lists.infradead.org" , dl-linux-imx Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This block is present in 6sl, 6sll and 6ull so it should be enabled in the default imx kernel config. Signed-off-by: Leonard Crestez Reviewed-by: Fabio Estevam --- arch/arm/configs/imx_v6_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index 1ad5736c8fa6..57928dff9bce 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -428,10 +428,11 @@ CONFIG_NLS_ISO8859_1=y CONFIG_NLS_ISO8859_15=m CONFIG_NLS_UTF8=y CONFIG_SECURITYFS=y CONFIG_CRYPTO_DEV_FSL_CAAM=y CONFIG_CRYPTO_DEV_SAHARA=y +CONFIG_CRYPTO_DEV_MXS_DCP=y CONFIG_CRC_CCITT=m CONFIG_CRC_T10DIF=y CONFIG_CRC7=m CONFIG_LIBCRC32C=m CONFIG_FONTS=y