mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 11:51:27 +00:00
e8ce6742f8
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>
41 lines
1.2 KiB
Plaintext
41 lines
1.2 KiB
Plaintext
* NVIDIA Tegra Secure Digital Host Controller
|
|
|
|
This controller on Tegra family SoCs 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-tegra driver.
|
|
|
|
Required properties:
|
|
- 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
|
|
- "nvidia,tegra186-sdhci": for Tegra186
|
|
- clocks : Must contain one entry, for the module clock.
|
|
See ../clocks/clock-bindings.txt for details.
|
|
- 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
|
|
|
|
Optional properties:
|
|
- power-gpios : Specify GPIOs for power control
|
|
|
|
Example:
|
|
|
|
sdhci@c8000200 {
|
|
compatible = "nvidia,tegra20-sdhci";
|
|
reg = <0xc8000200 0x200>;
|
|
interrupts = <47>;
|
|
clocks = <&tegra_car 14>;
|
|
resets = <&tegra_car 14>;
|
|
reset-names = "sdhci";
|
|
cd-gpios = <&gpio 69 0>; /* gpio PI5 */
|
|
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
|
|
power-gpios = <&gpio 155 0>; /* gpio PT3 */
|
|
bus-width = <8>;
|
|
};
|