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dt-bindings: Add binding for brcm,bcm2835-sdhost.

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This is the other SD controller on the platform, which can be swapped
to the role of SD card host using pin muxing.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Eric Anholt 2017-03-08 10:19:01 +01:00 committed by Ulf Hansson
parent 8e11b284ea
commit ebdb4d8e0d
1 changed files with 23 additions and 0 deletions
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Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt Normal file
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Broadcom BCM2835 SDHOST controller
This file documents differences between the core properties described
by mmc.txt and the properties that represent the BCM2835 controller.
Required properties:
- compatible: Should be "brcm,bcm2835-sdhost".
- clocks: The clock feeding the SDHOST controller.
Optional properties:
- dmas: DMA channel for read and write.
See Documentation/devicetree/bindings/dma/dma.txt for details
Example:
sdhost: mmc@7e202000 {
compatible = "brcm,bcm2835-sdhost";
reg = <0x7e202000 0x100>;
interrupts = <2 24>;
clocks = <&clocks BCM2835_CLOCK_VPU>;
dmas = <&dma 13>;
dma-names = "rx-tx";
};