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Mon, 15 Oct 2018 13:27:36 +0000 From: Leonard Crestez To: Shawn Guo , Fabio Estevam Subject: [PATCH v2 1/4] dt-bindings: crypto: Mention clocks for mxs-dcp Thread-Topic: [PATCH v2 1/4] dt-bindings: crypto: Mention clocks for mxs-dcp Thread-Index: AQHUZIrW9F9rEIQbEkCniL57XcBvJA== Date: Mon, 15 Oct 2018 13:27:36 +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: AM6PR0502CA0071.eurprd05.prod.outlook.com (2603:10a6:20b:56::48) 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; AM0PR04MB4948; 6:Goz93h0PTf7FFI4wtPmA11zgT52AJAxyRCj3WKysKF8+ShCghz+tP77TOWTcthqKJicErlNXZhoQHoKuhtLf2h1Sur40f1EKj0eg575akRhAZpOFR3szFmG65WCaLDpozrIp1oj3E0P5QWBMyCVi+YJgJEK5E5VIhgX7NJg+RJho52VncNsQ3leAuIdXWq/ge+IPVyR/mvE4CqME40XV66CKNp2p76SFTEN5XXRolDggAdLwwgLVt+tE6kOex7o+53KslXBpRQbKrt01p+ZFvZohj5ksAeQFbE2qb73VYaypYlRb7AuiQEx4RMh4SCVd1OU0DoL0L8sVF5Bps79YSsCDM1O1xvWOdawWirBD+8ZQ8F4EY4DWMoVwia55osPdEElSl1dAkQCwGJ+fOXXHW7oFbj5rog3YOLIu9d21w/3rgu++qqyOUlJfiN6fZF0fVzurx8lbOx+JrJv5ndfAfg==; 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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 Mon Oct 15 13:27:37 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 10641883 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 8429115E2 for ; Mon, 15 Oct 2018 13:48:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 54B7C291F0 for ; Mon, 15 Oct 2018 13:48:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4622C29202; Mon, 15 Oct 2018 13:48:24 +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 D7EF2291F0 for ; 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Mon, 15 Oct 2018 13:27:37 +0000 From: Leonard Crestez To: Shawn Guo , Fabio Estevam Subject: [PATCH v2 2/4] crypto: mxs-dcp - Add support for dcp clk Thread-Topic: [PATCH v2 2/4] crypto: mxs-dcp - Add support for dcp clk Thread-Index: AQHUZIrWKQehjSTCMkafThAO20dZjw== Date: Mon, 15 Oct 2018 13:27:37 +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: AM6PR0502CA0071.eurprd05.prod.outlook.com (2603:10a6:20b:56::48) 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; AM0PR04MB4948; 6:BCOhHOBenUV5CrQln/ymC6W9imo1hLm046bGJtvz2jq22kKdRk7qspUfn6AFsaOlH2x1swhs/VrS9G/OwYPzpBJ9pWvkf782O1uQLPlqSWMVOMGK+JBj9r2P/xdc/Wz2kuqAN3aI4Utmw0RYCgk41PYlHW01ZGt27ZEgFqv0giEzo2quY0p862dbjhCoUSMd8zoWIzSJpudySfgoGjblpZvjXqqBECj2DFyLarxinDRkvFueS+V+QoKxpLfff4o/mYS7UCObkZSxaZFA9AsoPwqTBkOQTz+ryjZvem4bLfayiwm+85wIHIVkFGVuIDMbXRpxx4T5LLGLN7YLoyumgY0Lp2/wqo4E3RsZ4hFZlM+DtpHiICkbPefSx72IqA/ScbbFW8Cs6ZQrlVGovhLHgLQNqvFndyZqrYRSFo/8UFJxvDCLX21Te5dQphUoaFhQSYPDJoJbDDrSfY0LD5T42g==; 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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 | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c index 849a81ece079..fd13787a2a0e 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 +1029,24 @@ 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(sdcp->dcp_clk); + if (ret) + return ret; + ret = clk_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 +1184,12 @@ 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(sdcp->dcp_clk); + platform_set_drvdata(pdev, NULL); global_sdcp = NULL; return 0; From patchwork Mon Oct 15 13:27:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 10641879 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 145D4157A 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 --- 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..be610339e933 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: dcp@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 Mon Oct 15 13:27:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 10641881 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 88897157A 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