From: Aapo Vienamo <avienamo@nvidia.com> To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Thierry Reding <thierry.reding@gmail.com>, Jonathan Hunter <jonathanh@nvidia.com>, Ulf Hansson <ulf.hansson@linaro.org>, Adrian Hunter <adrian.hunter@intel.com>, Mikko Perttunen <mperttunen@nvidia.com>, Stefan Agner <stefan@agner.ch> Cc: devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, Aapo Vienamo <avienamo@nvidia.com> Subject: [PATCH v3 04/38] dt-bindings: mmc: Add Tegra SDHCI sampling trimmer values Date: Thu, 30 Aug 2018 18:06:05 +0300 [thread overview] Message-ID: <20180830150639.21048-5-avienamo@nvidia.com> (raw) In-Reply-To: <20180830150639.21048-1-avienamo@nvidia.com> Document the Tegra SDHCI inbound and outbound sampling trimmer values. Signed-off-by: Aapo Vienamo <avienamo@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> --- .../devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt index 9713e052f736..edecf97231b9 100644 --- a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt @@ -67,6 +67,10 @@ Optional properties for Tegra210 and Tegra186: - nvidia,pad-autocal-pull-up-offset-hs400, nvidia,pad-autocal-pull-down-offset-hs400 : Specify drive strength calibration offsets for HS400 mode. +- nvidia,default-tap : Specify the default inbound sampling clock + trimmer value for non-tunable modes. +- nvidia,default-trim : Specify the default outbound clock trimmer + value. Notes on the pad calibration pull up and pulldown offset values: - The property values are drive codes which are programmed into the @@ -77,6 +81,13 @@ Optional properties for Tegra210 and Tegra186: - The SDR104 and HS400 timing specific values are used in corresponding modes if specified. + Notes on tap and trim values: + - The values are used for compensating trace length differences + by adjusting the sampling point. + - The values are programmed to the Vendor Clock Control Register. + Please refer to the reference manual of the SoC for correct + values. + Example: sdhci@700b0000 { compatible = "nvidia,tegra210-sdhci", "nvidia,tegra124-sdhci"; -- 2.18.0
WARNING: multiple messages have this Message-ID (diff)
From: Aapo Vienamo <avienamo@nvidia.com> To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Thierry Reding <thierry.reding@gmail.com>, Jonathan Hunter <jonathanh@nvidia.com>, Ulf Hansson <ulf.hansson@linaro.org>, Adrian Hunter <adrian.hunter@intel.com>, Mikko Perttunen <mperttunen@nvidia.com>, "Stefan Agner" <stefan@agner.ch> Cc: <devicetree@vger.kernel.org>, <linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-mmc@vger.kernel.org>, Aapo Vienamo <avienamo@nvidia.com> Subject: [PATCH v3 04/38] dt-bindings: mmc: Add Tegra SDHCI sampling trimmer values Date: Thu, 30 Aug 2018 18:06:05 +0300 [thread overview] Message-ID: <20180830150639.21048-5-avienamo@nvidia.com> (raw) In-Reply-To: <20180830150639.21048-1-avienamo@nvidia.com> Document the Tegra SDHCI inbound and outbound sampling trimmer values. Signed-off-by: Aapo Vienamo <avienamo@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> --- .../devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt index 9713e052f736..edecf97231b9 100644 --- a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt @@ -67,6 +67,10 @@ Optional properties for Tegra210 and Tegra186: - nvidia,pad-autocal-pull-up-offset-hs400, nvidia,pad-autocal-pull-down-offset-hs400 : Specify drive strength calibration offsets for HS400 mode. +- nvidia,default-tap : Specify the default inbound sampling clock + trimmer value for non-tunable modes. +- nvidia,default-trim : Specify the default outbound clock trimmer + value. Notes on the pad calibration pull up and pulldown offset values: - The property values are drive codes which are programmed into the @@ -77,6 +81,13 @@ Optional properties for Tegra210 and Tegra186: - The SDR104 and HS400 timing specific values are used in corresponding modes if specified. + Notes on tap and trim values: + - The values are used for compensating trace length differences + by adjusting the sampling point. + - The values are programmed to the Vendor Clock Control Register. + Please refer to the reference manual of the SoC for correct + values. + Example: sdhci@700b0000 { compatible = "nvidia,tegra210-sdhci", "nvidia,tegra124-sdhci"; -- 2.18.0
next prev parent reply other threads:[~2018-08-30 15:06 UTC|newest] Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-08-30 15:06 [PATCH v3 00/38] Tegra SDHCI add support for HS200 and UHS signaling Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 01/38] dt-bindings: Add Tegra PMC pad configuration bindings Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 02/38] dt-bindings: mmc: tegra: Add pad voltage control properties Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-31 13:15 ` Ulf Hansson 2018-08-30 15:06 ` [PATCH v3 03/38] dt-bindings: Add Tegra SDHCI pad pdpu offset bindings Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-31 13:15 ` Ulf Hansson 2018-08-30 15:06 ` Aapo Vienamo [this message] 2018-08-30 15:06 ` [PATCH v3 04/38] dt-bindings: mmc: Add Tegra SDHCI sampling trimmer values Aapo Vienamo 2018-08-31 13:15 ` Ulf Hansson 2018-08-30 15:06 ` [PATCH v3 05/38] soc/tegra: pmc: Fix pad voltage configuration for Tegra186 Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 06/38] soc/tegra: pmc: Factor out DPD register bit calculation Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 07/38] soc/tegra: pmc: Implement tegra_io_pad_is_powered() Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 08/38] soc/tegra: pmc: Use X macro to generate IO pad tables Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 09/38] soc/tegra: pmc: Remove public pad voltage APIs Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 10/38] soc/tegra: pmc: Implement pad configuration via pinctrl Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 11/38] mmc: tegra: Reconfigure pad voltages during voltage switching Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-31 13:16 ` Ulf Hansson 2018-08-31 13:59 ` Thierry Reding 2018-08-30 15:06 ` [PATCH v3 12/38] mmc: tegra: Poll for calibration completion Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 13/38] mmc: tegra: Set calibration pad voltage reference Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 14/38] mmc: tegra: Power on the calibration pad Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 15/38] mmc: tegra: Disable card clock during pad calibration Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 16/38] mmc: tegra: Program pad autocal offsets from dt Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 17/38] mmc: tegra: Perform pad calibration after voltage switch Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 18/38] mmc: tegra: Enable pad calibration on Tegra210 and Tegra186 Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 19/38] mmc: tegra: Add a workaround for tap value change glitch Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 20/38] mmc: tegra: Parse default trim and tap from dt Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 21/38] mmc: tegra: Configure default tap values Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 22/38] mmc: tegra: Configure default trim value on reset Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 23/38] mmc: tegra: Use standard SDHCI tuning on Tegra210 and Tegra186 Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 24/38] mmc: tegra: Remove tegra_sdhci_writew() from tegra210_sdhci_ops Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 25/38] mmc: tegra: Disable card clock during tuning cmd on Tegra210 Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 26/38] mmc: tegra: Enable UHS and HS200 modes for Tegra210 Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 27/38] mmc: tegra: Enable UHS and HS200 modes for Tegra186 Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 28/38] arm64: dts: Add Tegra210 sdmmc pinctrl voltage states Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 29/38] arm64: dts: Add Tegra186 " Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 30/38] arm64: dts: tegra210-p2180: Allow ldo2 to go down to 1.8 V Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 31/38] arm64: dts: tegra210-p2180: Correct sdmmc4 vqmmc-supply Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 32/38] arm64: dts: tegra210-p2597: Remove no-1-8-v from sdmmc1 Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 33/38] arm64: dts: tegra186: Add sdmmc pad auto calibration offsets Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 34/38] arm64: dts: tegra210: " Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 35/38] arm64: dts: tegra210: Add SDHCI tap and trim values Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 36/38] arm64: dts: tegra186: " Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 37/38] arm64: dts: tegra186: Assign clocks for sdmmc1 and sdmmc4 Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-30 15:06 ` [PATCH v3 38/38] arm64: dts: tegra210: " Aapo Vienamo 2018-08-30 15:06 ` Aapo Vienamo 2018-08-31 7:20 ` [PATCH v3 00/38] Tegra SDHCI add support for HS200 and UHS signaling Adrian Hunter
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