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| author | Stephen Warren <swarren@nvidia.com> | 2011-08-30 13:17:16 -0600 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-10-26 15:43:42 -0400 |
| commit | 55cd65e48b62c6f08edbb93d5cadf96e876ebcc2 (patch) | |
| tree | 89a2841e84793f86a8b8387fa938c772a0490b2d /Documentation/devicetree | |
| parent | 1a5c8e1f4f09e67118f81885a22ceb7bbd2df4ee (diff) | |
| download | linux-55cd65e48b62c6f08edbb93d5cadf96e876ebcc2.tar.bz2 | |
mmc: sdhci-tegra: Add 8-bit support to device tree binding.
The previous patch which implemented a DT binding for sdhci-tegra did not
allow all platform data fields to be initialized from DT. The following
were missing:
is_8bit: Implemented by this patch.
pm_flags: Not implemented yet. There are no mainline users of this field.
I'm not quite sure what it's for, and hence how to represent this
in DT; the value ends up being assigned to host->mmc->pm_caps.
While we're at it, fix the binding documentation to refer to "SD/MMC"
instead of "eSDHC", since that's the correct name; "eSDHC" was cut/paste
from the Freescale binding docs.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt index c87f66782726..7e51154679a6 100644 --- a/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt @@ -5,13 +5,14 @@ and SDIO types of memory cards. Required properties: - compatible : Should be "nvidia,<chip>-sdhci" -- reg : Should contain eSDHC registers location and length -- interrupts : Should contain eSDHC interrupt +- reg : Should contain SD/MMC registers location and length +- interrupts : Should contain SD/MMC interrupt Optional properties: - cd-gpios : Specify GPIOs for card detection - wp-gpios : Specify GPIOs for write protection - power-gpios : Specify GPIOs for power control +- support-8bit : Boolean, indicates if 8-bit mode should be used. Example: @@ -22,4 +23,5 @@ sdhci@c8000200 { cd-gpios = <&gpio 69 0>; /* gpio PI5 */ wp-gpios = <&gpio 57 0>; /* gpio PH1 */ power-gpios = <&gpio 155 0>; /* gpio PT3 */ + support-8bit; }; |