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linux/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt

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mmc: sdhci-tegra: Add Device Tree probing support Add hooks to read gpio configuration out of the device tree node. [grant.likely: Rewrite of original patch from John Bonesio] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> [swarren: Fixed tegra_sdhci_get_ro() to retrieve pdata correctly] [swarren: Reworked to avoid #ifdef CONFIG_OF] [swarren: Reworked binding based on fsl-imx-esdhc.txt] [swarren: Documented binding] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-08-23 12:15:33 -06:00
* NVIDIA Tegra Secure Digital Host Controller
This controller on Tegra family SoCs provides an interface for MMC, SD,
and SDIO types of memory cards.
mmc: dt: Deduplicate binding docs by referencing mmc.txt Now that we have common bindings for MMC, rewrite the individual bindings to inherit from mmc.txt and describe their differences. Acked-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2012-06-11 21:48:16 -04:00
This file documents differences between the core properties described
by mmc.txt and the properties used by the sdhci-tegra driver.
mmc: sdhci-tegra: Add Device Tree probing support Add hooks to read gpio configuration out of the device tree node. [grant.likely: Rewrite of original patch from John Bonesio] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> [swarren: Fixed tegra_sdhci_get_ro() to retrieve pdata correctly] [swarren: Reworked to avoid #ifdef CONFIG_OF] [swarren: Reworked binding based on fsl-imx-esdhc.txt] [swarren: Documented binding] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-08-23 12:15:33 -06:00
Required properties:
dt-bindings: mmc: tegra: Reformat compatible string list The list of compatible strings is somewhat difficult to read and extend. Reformat it into a list to make it more easily extensible. While at it, also remove the "plus one of the above" clause because it isn't actually valid. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-03-14 20:01:51 +01:00
- compatible : should be one of:
- "nvidia,tegra20-sdhci": for Tegra20
- "nvidia,tegra30-sdhci": for Tegra30
- "nvidia,tegra114-sdhci": for Tegra114
- "nvidia,tegra124-sdhci": for Tegra124 and Tegra132
- "nvidia,tegra210-sdhci": for Tegra210
dt-bindings: mmc: tegra: Document Tegra186 compatible string The SDHCI controller found on Tegra186 in very similar to the controller found on earlier generations of Tegra. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-03-14 20:01:52 +01:00
- "nvidia,tegra186-sdhci": for Tegra186
ARM: tegra: add missing clock documentation to DT bindings Many of the Tegra DT binding documents say nothing about the clocks or clock-names properties, yet those are present and required in DT files. This patch simply updates the documentation file to match the implicit definition of the binding, based on real-world DT content. All Tegra bindings that mention clocks are updated to have consistent wording and formatting of the clock-related properties. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
2013-11-06 14:00:25 -07:00
- clocks : Must contain one entry, for the module clock.
See ../clocks/clock-bindings.txt for details.
ARM: tegra: document reset properties in DT bindings Update all the Tegra DT bindings to require resets/reset-names properties where the HW module has reset inputs. Remove any entries from clocks or clock-names that were only required to identify reset inputs, rather than referring to real clocks. This is a DT-ABI-incompatible change. It is the first of two changes required for me to consider the Tegra DT bindings as stable, the other being conversion to the common DMA DT bindings. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
2013-11-07 10:11:27 -07:00
- resets : Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names : Must include the following entries:
- sdhci
mmc: sdhci-tegra: Add Device Tree probing support Add hooks to read gpio configuration out of the device tree node. [grant.likely: Rewrite of original patch from John Bonesio] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> [swarren: Fixed tegra_sdhci_get_ro() to retrieve pdata correctly] [swarren: Reworked to avoid #ifdef CONFIG_OF] [swarren: Reworked binding based on fsl-imx-esdhc.txt] [swarren: Documented binding] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-08-23 12:15:33 -06:00
Optional properties:
- power-gpios : Specify GPIOs for power control
Example:
sdhci@c8000200 {
compatible = "nvidia,tegra20-sdhci";
reg = <0xc8000200 0x200>;
interrupts = <47>;
ARM: tegra: add missing clock documentation to DT bindings Many of the Tegra DT binding documents say nothing about the clocks or clock-names properties, yet those are present and required in DT files. This patch simply updates the documentation file to match the implicit definition of the binding, based on real-world DT content. All Tegra bindings that mention clocks are updated to have consistent wording and formatting of the clock-related properties. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
2013-11-06 14:00:25 -07:00
clocks = <&tegra_car 14>;
ARM: tegra: document reset properties in DT bindings Update all the Tegra DT bindings to require resets/reset-names properties where the HW module has reset inputs. Remove any entries from clocks or clock-names that were only required to identify reset inputs, rather than referring to real clocks. This is a DT-ABI-incompatible change. It is the first of two changes required for me to consider the Tegra DT bindings as stable, the other being conversion to the common DMA DT bindings. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
2013-11-07 10:11:27 -07:00
resets = <&tegra_car 14>;
reset-names = "sdhci";
mmc: sdhci-tegra: Add Device Tree probing support Add hooks to read gpio configuration out of the device tree node. [grant.likely: Rewrite of original patch from John Bonesio] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> [swarren: Fixed tegra_sdhci_get_ro() to retrieve pdata correctly] [swarren: Reworked to avoid #ifdef CONFIG_OF] [swarren: Reworked binding based on fsl-imx-esdhc.txt] [swarren: Documented binding] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-08-23 12:15:33 -06:00
cd-gpios = <&gpio 69 0>; /* gpio PI5 */
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
power-gpios = <&gpio 155 0>; /* gpio PT3 */
mmc: dt: Consolidate DT bindings This patch unifies the current DT MMC bindings documentation and code, adds generic MMC DT bindings documentation, and updates .dts files for consistency. [cjb: typo fixes, addition of max-frequency property] Signed-off-by: Chris Ball <cjb@laptop.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-13 00:14:24 -04:00
bus-width = <8>;
mmc: sdhci-tegra: Add Device Tree probing support Add hooks to read gpio configuration out of the device tree node. [grant.likely: Rewrite of original patch from John Bonesio] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> [swarren: Fixed tegra_sdhci_get_ro() to retrieve pdata correctly] [swarren: Reworked to avoid #ifdef CONFIG_OF] [swarren: Reworked binding based on fsl-imx-esdhc.txt] [swarren: Documented binding] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-08-23 12:15:33 -06:00
};
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