From patchwork Wed Aug 26 20:05:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowjanya Komatineni X-Patchwork-Id: 264873 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C873BC433E4 for ; Wed, 26 Aug 2020 20:05:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 99A1D2080C for ; Wed, 26 Aug 2020 20:05:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="NhmMqn1D" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727030AbgHZUFn (ORCPT ); Wed, 26 Aug 2020 16:05:43 -0400 Received: from hqnvemgate25.nvidia.com ([216.228.121.64]:8666 "EHLO hqnvemgate25.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726944AbgHZUFh (ORCPT ); Wed, 26 Aug 2020 16:05:37 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate25.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Wed, 26 Aug 2020 13:04:34 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 26 Aug 2020 13:05:37 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 26 Aug 2020 13:05:37 -0700 Received: from HQMAIL107.nvidia.com (172.20.187.13) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 26 Aug 2020 20:05:34 +0000 Received: from rnnvemgw01.nvidia.com (10.128.109.123) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 26 Aug 2020 20:05:34 +0000 Received: from skomatineni-linux.nvidia.com (Not Verified[10.2.174.186]) by rnnvemgw01.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Wed, 26 Aug 2020 13:05:33 -0700 From: Sowjanya Komatineni To: , , , , CC: , , , , , Subject: [PATCH v5 3/7] dt-bindings: mmc: tegra: Add tmclk for Tegra210 and later Date: Wed, 26 Aug 2020 13:05:10 -0700 Message-ID: <1598472314-30235-4-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1598472314-30235-1-git-send-email-skomatineni@nvidia.com> References: <1598472314-30235-1-git-send-email-skomatineni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1598472274; bh=XK4VLNMXZ7XEZrAff4ARy7mCMSVpYKjkKVkZT1HF2P0=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=NhmMqn1DTQNfxvRt7kG+OCiw1c0koECjT1hHP+DroubrvE5+yPA3GRbr7ahrxDwOy ezvMuIAXZnlytCjBvg7MPHwTRUCniICrXEtBw7n2mLp5QmIfwnXzLNOITTNR0kex1a Z4Tszu+S23Di7fRoHZgHj9x7KvC1unnO1aHGdinYV39HG8gLv6kro9o9eUfy8HMVe9 38SOPZKD2bjCaoD333aCuxpJcirDGVIF6BAIwXR+0e50a7lJQOtcLf97BaawgyPfiY kt/scjUzgO7m9fOFmVPMmTej98j45OLZ/wUzXZHFu23P2B3g0M6QJAXCp2UTWH5xNE h5mEIQiTX0BMw== Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org Tegra210 and later uses separate SDMMC_LEGACY_TM clock for data timeout. So, this patch adds "tmclk" to Tegra sdhci clock property in the device tree binding. Signed-off-by: Sowjanya Komatineni --- .../bindings/mmc/nvidia,tegra20-sdhci.txt | 32 ++++++++++++++++++++-- 1 file changed, 29 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt index 2cf3aff..96c0b14 100644 --- a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt @@ -15,8 +15,15 @@ Required properties: - "nvidia,tegra210-sdhci": for Tegra210 - "nvidia,tegra186-sdhci": for Tegra186 - "nvidia,tegra194-sdhci": for Tegra194 -- clocks : Must contain one entry, for the module clock. - See ../clocks/clock-bindings.txt for details. +- clocks: For Tegra210, Tegra186 and Tegra194 must contain two entries. + One for the module clock and one for the timeout clock. + For all other Tegra devices, must contain a single entry for + the module clock. See ../clocks/clock-bindings.txt for details. +- clock-names: For Tegra210, Tegra186 and Tegra194 must contain the + strings 'sdhci' and 'tmclk' to represent the module and + the timeout clocks, respectively. + For all other Tegra devices must contain the string 'sdhci' + to represent the module clock. - resets : Must contain an entry for each entry in reset-names. See ../reset/reset.txt for details. - reset-names : Must include the following entries: @@ -99,7 +106,7 @@ Optional properties for Tegra210, Tegra186 and Tegra194: Example: sdhci@700b0000 { - compatible = "nvidia,tegra210-sdhci", "nvidia,tegra124-sdhci"; + compatible = "nvidia,tegra124-sdhci"; reg = <0x0 0x700b0000 0x0 0x200>; interrupts = ; clocks = <&tegra_car TEGRA210_CLK_SDMMC1>; @@ -115,3 +122,22 @@ sdhci@700b0000 { nvidia,pad-autocal-pull-down-offset-1v8 = <0x7b>; status = "disabled"; }; + +sdhci@700b0000 { + compatible = "nvidia,tegra210-sdhci"; + reg = <0x0 0x700b0000 0x0 0x200>; + interrupts = ; + clocks = <&tegra_car TEGRA210_CLK_SDMMC1>, + <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>; + clock-names = "sdhci", "tmclk"; + resets = <&tegra_car 14>; + reset-names = "sdhci"; + pinctrl-names = "sdmmc-3v3", "sdmmc-1v8"; + pinctrl-0 = <&sdmmc1_3v3>; + pinctrl-1 = <&sdmmc1_1v8>; + nvidia,pad-autocal-pull-up-offset-3v3 = <0x00>; + nvidia,pad-autocal-pull-down-offset-3v3 = <0x7d>; + nvidia,pad-autocal-pull-up-offset-1v8 = <0x7b>; + nvidia,pad-autocal-pull-down-offset-1v8 = <0x7b>; + status = "disabled"; +}; From patchwork Wed Aug 26 20:05:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowjanya Komatineni X-Patchwork-Id: 264874 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C191C433DF for ; Wed, 26 Aug 2020 20:05:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D09342078D for ; Wed, 26 Aug 2020 20:05:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="k8Q3/P1B" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727048AbgHZUFp (ORCPT ); Wed, 26 Aug 2020 16:05:45 -0400 Received: from hqnvemgate25.nvidia.com ([216.228.121.64]:8661 "EHLO hqnvemgate25.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726940AbgHZUFh (ORCPT ); Wed, 26 Aug 2020 16:05:37 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate25.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Wed, 26 Aug 2020 13:04:34 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 26 Aug 2020 13:05:36 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 26 Aug 2020 13:05:36 -0700 Received: from HQMAIL101.nvidia.com (172.20.187.10) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 26 Aug 2020 20:05:35 +0000 Received: from rnnvemgw01.nvidia.com (10.128.109.123) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 26 Aug 2020 20:05:34 +0000 Received: from skomatineni-linux.nvidia.com (Not Verified[10.2.174.186]) by rnnvemgw01.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Wed, 26 Aug 2020 13:05:34 -0700 From: Sowjanya Komatineni To: , , , , CC: , , , , , Subject: [PATCH v5 4/7] arm64: tegra: Add missing timeout clock to Tegra210 SDMMC Date: Wed, 26 Aug 2020 13:05:11 -0700 Message-ID: <1598472314-30235-5-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1598472314-30235-1-git-send-email-skomatineni@nvidia.com> References: <1598472314-30235-1-git-send-email-skomatineni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1598472274; bh=4GhYufSucM1C4nPDlw6YKVKJdfsjgV4P7NbU6PXtfnc=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=k8Q3/P1B+wQOv5tcGCVSlr1DQ185dNcVXLv4OUpIYx+v9jEpaHurtqSf3nqQ+DgDS 9HPQDcNrYv191nhqTrVMzyfKGG2n1kNTbXrvQxGh6K06imO6rVLlV/PSiwR0WMA3dI R0RgEIIkEvRgF/A3wf3ZCMPECy7A7Yfwhic9JqtVNrWNc/6BWuAgfda4Lb3VpM2h0v b+03SlKOvqp/+SkkQNCOOA/L11Ho509mhZck5wLQ3mPJ2KCOpTiaZl6FPw2rb9+stW qrv9sp0/2LJUvx/3fgPy16F5h8lb9xnlKy0aZ2MnC4AOObfJoIlMreMJRaK+Yw8nb9 8tcbrHBIjkd7w== Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org commit 742af7e7a0a1 ("arm64: tegra: Add Tegra210 support") Tegra210 uses separate SDMMC_LEGACY_TM clock for data timeout and this clock is not enabled currently which is not recommended. Tegra SDMMC advertises 12Mhz as timeout clock frequency in host capability register. So, this clock should be kept enabled by SDMMC driver. Fixes: 742af7e7a0a1 ("arm64: tegra: Add Tegra210 support") Cc: stable # 5.4 Tested-by: Jon Hunter Reviewed-by: Jon Hunter Signed-off-by: Sowjanya Komatineni --- arch/arm64/boot/dts/nvidia/tegra210.dtsi | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi index 829f786..8cca216 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi @@ -1194,8 +1194,9 @@ compatible = "nvidia,tegra210-sdhci"; reg = <0x0 0x700b0000 0x0 0x200>; interrupts = ; - clocks = <&tegra_car TEGRA210_CLK_SDMMC1>; - clock-names = "sdhci"; + clocks = <&tegra_car TEGRA210_CLK_SDMMC1>, + <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>; + clock-names = "sdhci", "tmclk"; resets = <&tegra_car 14>; reset-names = "sdhci"; pinctrl-names = "sdmmc-3v3", "sdmmc-1v8", @@ -1222,8 +1223,9 @@ compatible = "nvidia,tegra210-sdhci"; reg = <0x0 0x700b0200 0x0 0x200>; interrupts = ; - clocks = <&tegra_car TEGRA210_CLK_SDMMC2>; - clock-names = "sdhci"; + clocks = <&tegra_car TEGRA210_CLK_SDMMC2>, + <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>; + clock-names = "sdhci", "tmclk"; resets = <&tegra_car 9>; reset-names = "sdhci"; pinctrl-names = "sdmmc-1v8-drv"; @@ -1239,8 +1241,9 @@ compatible = "nvidia,tegra210-sdhci"; reg = <0x0 0x700b0400 0x0 0x200>; interrupts = ; - clocks = <&tegra_car TEGRA210_CLK_SDMMC3>; - clock-names = "sdhci"; + clocks = <&tegra_car TEGRA210_CLK_SDMMC3>, + <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>; + clock-names = "sdhci", "tmclk"; resets = <&tegra_car 69>; reset-names = "sdhci"; pinctrl-names = "sdmmc-3v3", "sdmmc-1v8", @@ -1262,8 +1265,9 @@ compatible = "nvidia,tegra210-sdhci"; reg = <0x0 0x700b0600 0x0 0x200>; interrupts = ; - clocks = <&tegra_car TEGRA210_CLK_SDMMC4>; - clock-names = "sdhci"; + clocks = <&tegra_car TEGRA210_CLK_SDMMC4>, + <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>; + clock-names = "sdhci", "tmclk"; resets = <&tegra_car 15>; reset-names = "sdhci"; pinctrl-names = "sdmmc-3v3-drv", "sdmmc-1v8-drv"; 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Wed, 26 Aug 2020 13:05:37 -0700 From: Sowjanya Komatineni To: , , , , CC: , , , , , Subject: [PATCH v5 7/7] sdhci: tegra: Add missing TMCLK for data timeout Date: Wed, 26 Aug 2020 13:05:14 -0700 Message-ID: <1598472314-30235-8-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1598472314-30235-1-git-send-email-skomatineni@nvidia.com> References: <1598472314-30235-1-git-send-email-skomatineni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1598472328; bh=vcuUzoxEHPbJpZEaocSnEvUTr24rjXRhVAsiKgIaQag=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=HAHQnHNSonkUsxHy9HM40Qw6VEDyECywYulvO7xvfKPTl8P8/4IMIhyZ68ULPDbge Sl2ELf0DPwBgwZZ4Yf8DM4HsxFV1M+o6I62whbKkim9LhgQ+37FVNcnXaL0+u4RuEJ uP9+1oztKOPYfQIX56/6VPRNCkIOpPoQ5FA1l0oHDqM1CvEIfzz3raR8nkVMs5ueLb 62jWbEuajxovsGu2keEu381X0d5fITiZiyzQV6MoGCFs+yuVFGmf+8SGEWNqULUPfJ 4WKkXX4Gbe/4e0iizZOl0DbWkUY4Qwet+mMS87FhvIdpfi+pOjHanwAISJ2RhYp3xu RxKlkBK3Lf2xg== Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org commit b5a84ecf025a ("mmc: tegra: Add Tegra210 support") Tegra210 and later has a separate sdmmc_legacy_tm (TMCLK) used by Tegra SDMMC hawdware for data timeout to achive better timeout than using SDCLK and using TMCLK is recommended. USE_TMCLK_FOR_DATA_TIMEOUT bit in Tegra SDMMC register SDHCI_TEGRA_VENDOR_SYS_SW_CTRL can be used to choose either TMCLK or SDCLK for data timeout. Default USE_TMCLK_FOR_DATA_TIMEOUT bit is set to 1 and TMCLK is used for data timeout by Tegra SDMMC hardware and having TMCLK not enabled is not recommended. So, this patch adds quirk NVQUIRK_HAS_TMCLK for SoC having separate timeout clock and keeps TMCLK enabled all the time. Fixes: b5a84ecf025a ("mmc: tegra: Add Tegra210 support") Cc: stable # 5.4 Tested-by: Jon Hunter Reviewed-by: Jon Hunter Acked-by: Adrian Hunter Signed-off-by: Sowjanya Komatineni --- drivers/mmc/host/sdhci-tegra.c | 89 ++++++++++++++++++++++++++++++++++++++---- 1 file changed, 81 insertions(+), 8 deletions(-) diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index 31ed321..9bcd532 100644 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -110,6 +110,12 @@ #define NVQUIRK_DIS_CARD_CLK_CONFIG_TAP BIT(8) #define NVQUIRK_CQHCI_DCMD_R1B_CMD_TIMING BIT(9) +/* + * NVQUIRK_HAS_TMCLK is for SoC's having separate timeout clock for Tegra + * SDMMC hardware data timeout. + */ +#define NVQUIRK_HAS_TMCLK BIT(10) + /* SDMMC CQE Base Address for Tegra Host Ver 4.1 and Higher */ #define SDHCI_TEGRA_CQE_BASE_ADDR 0xF000 @@ -140,6 +146,7 @@ struct sdhci_tegra_autocal_offsets { struct sdhci_tegra { const struct sdhci_tegra_soc_data *soc_data; struct gpio_desc *power_gpio; + struct clk *tmclk; bool ddr_signaling; bool pad_calib_required; bool pad_control_available; @@ -1433,7 +1440,8 @@ static const struct sdhci_tegra_soc_data soc_data_tegra210 = { NVQUIRK_HAS_PADCALIB | NVQUIRK_DIS_CARD_CLK_CONFIG_TAP | NVQUIRK_ENABLE_SDR50 | - NVQUIRK_ENABLE_SDR104, + NVQUIRK_ENABLE_SDR104 | + NVQUIRK_HAS_TMCLK, .min_tap_delay = 106, .max_tap_delay = 185, }; @@ -1471,6 +1479,7 @@ static const struct sdhci_tegra_soc_data soc_data_tegra186 = { NVQUIRK_DIS_CARD_CLK_CONFIG_TAP | NVQUIRK_ENABLE_SDR50 | NVQUIRK_ENABLE_SDR104 | + NVQUIRK_HAS_TMCLK | NVQUIRK_CQHCI_DCMD_R1B_CMD_TIMING, .min_tap_delay = 84, .max_tap_delay = 136, @@ -1483,7 +1492,8 @@ static const struct sdhci_tegra_soc_data soc_data_tegra194 = { NVQUIRK_HAS_PADCALIB | NVQUIRK_DIS_CARD_CLK_CONFIG_TAP | NVQUIRK_ENABLE_SDR50 | - NVQUIRK_ENABLE_SDR104, + NVQUIRK_ENABLE_SDR104 | + NVQUIRK_HAS_TMCLK; .min_tap_delay = 96, .max_tap_delay = 139, }; @@ -1611,15 +1621,76 @@ static int sdhci_tegra_probe(struct platform_device *pdev) goto err_power_req; } - clk = devm_clk_get(mmc_dev(host->mmc), NULL); - if (IS_ERR(clk)) { - rc = PTR_ERR(clk); + /* + * Tegra210 and later has separate SDMMC_LEGACY_TM clock used for + * hardware data timeout clock and SW can choose TMCLK or SDCLK for + * hardware data timeout through the bit USE_TMCLK_FOR_DATA_TIMEOUT + * of the register SDHCI_TEGRA_VENDOR_SYS_SW_CTRL. + * + * USE_TMCLK_FOR_DATA_TIMEOUT bit default is set to 1 and SDMMC uses + * 12Mhz TMCLK which is advertised in host capability register. + * With TMCLK of 12Mhz provides maximum data timeout period that can + * be achieved is 11s better than using SDCLK for data timeout. + * + * So, TMCLK is set to 12Mhz and kept enabled all the time on SoC's + * supporting separate TMCLK. + * + * Old device tree has single sdhci clock. So with addition of TMCLK, + * retrieving sdhci clock by "sdhci" clock name based on number of + * clocks in sdhci device node. + */ + + if (of_clk_get_parent_count(&pdev->dev) == 1) { + if (soc_data->nvquirks & NVQUIRK_HAS_TMCLK) + dev_warn(&pdev->dev, + "missing tmclk in the device tree\n"); + + clk = devm_clk_get(dev, NULL) + if (IS_ERR(clk)) { + rc = PTR_ERR(clk); - if (rc != -EPROBE_DEFER) - dev_err(&pdev->dev, "failed to get clock: %d\n", rc); + if (rc != -EPROBE_DEFER) + dev_err(&pdev->dev, + "failed to get sdhci clock: %d\n", rc); - goto err_clk_get; + goto err_power_req; + } + } else { + if (soc_data->nvquirks & NVQUIRK_HAS_TMCLK) { + clk = devm_clk_get(&pdev->dev, "tmclk"); + if (IS_ERR(clk)) { + rc = PTR_ERR(clk); + if (rc == -EPROBE_DEFER) + goto err_power_req; + + dev_warn(&pdev->dev, + "failed to get tmclk: %d\n", rc); + clk = NULL; + } + + clk_set_rate(clk, 12000000); + rc = clk_prepare_enable(clk); + if (rc) { + dev_err(&pdev->dev, + "failed to enable tmclk: %d\n", rc); + goto err_power_req; + } + + tegra_host->tmclk = clk; + } + + clk = devm_clk_get(dev, "sdhci") + if (IS_ERR(clk)) { + rc = PTR_ERR(clk); + + if (rc != -EPROBE_DEFER) + dev_err(&pdev->dev, + "failed to get sdhci clock: %d\n", rc); + + goto err_clk_get; + } } + clk_prepare_enable(clk); pltfm_host->clk = clk; @@ -1654,6 +1725,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev) err_rst_get: clk_disable_unprepare(pltfm_host->clk); err_clk_get: + clk_disable_unprepare(tegra_host->tmclk); err_power_req: err_parse_dt: sdhci_pltfm_free(pdev); @@ -1671,6 +1743,7 @@ static int sdhci_tegra_remove(struct platform_device *pdev) reset_control_assert(tegra_host->rst); usleep_range(2000, 4000); clk_disable_unprepare(pltfm_host->clk); + clk_disable_unprepare(tegra_host->tmclk); sdhci_pltfm_free(pdev);