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spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=5tM0RhinLbpl6ml8JaLWhMLX3mBAjJtpF8PX6XM4hxs=; b=EYe+z9jCRis48SXXVPmwTNr68c WQLn/SYZQPaIjW/VPYJwd9cegln3Hz96xar7IEIfY4jhZA0F8pVPLw+AB1QlPcTr6/mM+nuekd85L Ivaz8jsgxklUp1sIeDy+M45k5tZGpVkT4lF6Iecivx8FxmFJEUI+dNGjrkLBolyFWEVOUGlKfUNDh uFGugv6NGsx5dzbFn/Nsw8ZFdw8eWS/Y4TOsw6tuIEWL3HC+ef4h2G8QeJx6KwuQLCmwrkHPO0zLI 3Z0uxTr1UsfX9CP0xmygK7B6RWUCOO0PXLG8zttjfz0DkSnCa2EQmIFeSXUhCjRaiAiCaTp8n29X/ 4P7oPSbw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jgf3B-0006yH-Pi; Thu, 04 Jun 2020 01:52:09 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jgf31-0006n3-Cp for linux-arm-kernel@lists.infradead.org; Thu, 04 Jun 2020 01:52:01 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 1CAD21A10D6; Thu, 4 Jun 2020 03:51:58 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 0BE9A1A10CD; Thu, 4 Jun 2020 03:51:53 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id B6BAB40299; Thu, 4 Jun 2020 09:51:46 +0800 (SGT) From: Anson Huang To: ulf.hansson@linaro.org, robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, mpa@pengutronix.de, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH V2 1/3] dt-bindings: mmc: Convert imx esdhc to json-schema Date: Thu, 4 Jun 2020 09:41:24 +0800 Message-Id: <1591234886-15351-2-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1591234886-15351-1-git-send-email-Anson.Huang@nxp.com> References: <1591234886-15351-1-git-send-email-Anson.Huang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200603_185159_711843_F29339D1 X-CRM114-Status: GOOD ( 15.40 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [92.121.34.13 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Convert the i.MX ESDHC binding to DT schema format using json-schema Signed-off-by: Anson Huang --- Changes since V1: - add "unevaluatedProperties: false". --- .../devicetree/bindings/mmc/fsl-imx-esdhc.txt | 67 ----------- .../devicetree/bindings/mmc/fsl-imx-esdhc.yaml | 124 +++++++++++++++++++++ 2 files changed, 124 insertions(+), 67 deletions(-) delete mode 100644 Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt create mode 100644 Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt deleted file mode 100644 index de1b8bd..0000000 --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt +++ /dev/null @@ -1,67 +0,0 @@ -* Freescale Enhanced Secure Digital Host Controller (eSDHC) for i.MX - -The Enhanced Secure Digital Host Controller on Freescale i.MX family -provides an interface for MMC, SD, and SDIO types of memory cards. - -This file documents differences between the core properties described -by mmc.txt and the properties used by the sdhci-esdhc-imx driver. - -Required properties: -- compatible : Should be "fsl,-esdhc", the supported chips include - "fsl,imx25-esdhc" - "fsl,imx35-esdhc" - "fsl,imx51-esdhc" - "fsl,imx53-esdhc" - "fsl,imx6q-usdhc" - "fsl,imx6sl-usdhc" - "fsl,imx6sx-usdhc" - "fsl,imx6ull-usdhc" - "fsl,imx7d-usdhc" - "fsl,imx7ulp-usdhc" - "fsl,imx8mq-usdhc" - "fsl,imx8mm-usdhc" - "fsl,imx8mn-usdhc" - "fsl,imx8mp-usdhc" - "fsl,imx8qm-usdhc" - "fsl,imx8qxp-usdhc" - -Optional properties: -- fsl,wp-controller : Indicate to use controller internal write protection -- fsl,delay-line : Specify the number of delay cells for override mode. - This is used to set the clock delay for DLL(Delay Line) on override mode - to select a proper data sampling window in case the clock quality is not good - due to signal path is too long on the board. Please refer to eSDHC/uSDHC - chapter, DLL (Delay Line) section in RM for details. -- voltage-ranges : Specify the voltage range in case there are software - transparent level shifters on the outputs of the controller. Two cells are - required, first cell specifies minimum slot voltage (mV), second cell - specifies maximum slot voltage (mV). Several ranges could be specified. -- fsl,tuning-start-tap: Specify the start dealy cell point when send first CMD19 - in tuning procedure. -- fsl,tuning-step: Specify the increasing delay cell steps in tuning procedure. - The uSDHC use one delay cell as default increasing step to do tuning process. - This property allows user to change the tuning step to more than one delay - cells which is useful for some special boards or cards when the default - tuning step can't find the proper delay window within limited tuning retries. -- fsl,strobe-dll-delay-target: Specify the strobe dll control slave delay target. - This delay target programming host controller loopback read clock, and this - property allows user to change the delay target for the strobe input read clock. - If not use this property, driver default set the delay target to value 7. - Only eMMC HS400 mode need to take care of this property. - -Examples: - -esdhc@70004000 { - compatible = "fsl,imx51-esdhc"; - reg = <0x70004000 0x4000>; - interrupts = <1>; - fsl,wp-controller; -}; - -esdhc@70008000 { - compatible = "fsl,imx51-esdhc"; - reg = <0x70008000 0x4000>; - interrupts = <2>; - cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */ - wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */ -}; diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml new file mode 100644 index 0000000..74db24aa --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml @@ -0,0 +1,124 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/fsl-imx-esdhc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale Enhanced Secure Digital Host Controller (eSDHC) for i.MX + +maintainers: + - Shawn Guo + +allOf: + - $ref: "mmc-controller.yaml" + +description: | + The Enhanced Secure Digital Host Controller on Freescale i.MX family + provides an interface for MMC, SD, and SDIO types of memory cards. + + This file documents differences between the core properties described + by mmc.txt and the properties used by the sdhci-esdhc-imx driver. + +properties: + compatible: + enum: + - fsl,imx25-esdhc + - fsl,imx35-esdhc + - fsl,imx51-esdhc + - fsl,imx53-esdhc + - fsl,imx6q-usdhc + - fsl,imx6sl-usdhc + - fsl,imx6sx-usdhc + - fsl,imx6ull-usdhc + - fsl,imx7d-usdhc + - fsl,imx7ulp-usdhc + - fsl,imx8mq-usdhc + - fsl,imx8mm-usdhc + - fsl,imx8mn-usdhc + - fsl,imx8mp-usdhc + - fsl,imx8qm-usdhc + - fsl,imx8qxp-usdhc + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + fsl,wp-controller: + description: | + boolean, if present, indicate to use controller internal write protection. + type: boolean + + fsl,delay-line: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Specify the number of delay cells for override mode. + This is used to set the clock delay for DLL(Delay Line) on override mode + to select a proper data sampling window in case the clock quality is not good + due to signal path is too long on the board. Please refer to eSDHC/uSDHC + chapter, DLL (Delay Line) section in RM for details. + default: 0 + + voltage-ranges: + $ref: '/schemas/types.yaml#/definitions/uint32-matrix' + description: | + Specify the voltage range in case there are software + transparent level shifters on the outputs of the controller. Two cells are + required, first cell specifies minimum slot voltage (mV), second cell + specifies maximum slot voltage (mV). Several ranges could be specified. + items: + items: + - description: value for minimum slot voltage + - description: value for maximum slot voltage + maxItems: 1 + + fsl,tuning-start-tap: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Specify the start dealy cell point when send first CMD19 in tuning procedure. + default: 0 + + fsl,tuning-step: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Specify the increasing delay cell steps in tuning procedure. + The uSDHC use one delay cell as default increasing step to do tuning process. + This property allows user to change the tuning step to more than one delay + cells which is useful for some special boards or cards when the default + tuning step can't find the proper delay window within limited tuning retries. + default: 0 + + fsl,strobe-dll-delay-target: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Specify the strobe dll control slave delay target. + This delay target programming host controller loopback read clock, and this + property allows user to change the delay target for the strobe input read clock. + If not use this property, driver default set the delay target to value 7. + Only eMMC HS400 mode need to take care of this property. + default: 0 + +required: + - compatible + - reg + - interrupts + +unevaluatedProperties: false + +examples: + - | + mmc@70004000 { + compatible = "fsl,imx51-esdhc"; + reg = <0x70004000 0x4000>; + interrupts = <1>; + fsl,wp-controller; + }; + + mmc@70008000 { + compatible = "fsl,imx51-esdhc"; + reg = <0x70008000 0x4000>; + interrupts = <2>; + cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */ + wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */ + };