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Commit 5f1d1434 authored by Shawn Lin's avatar Shawn Lin Committed by Ulf Hansson
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Documentation: mmc: add description for new no-sd* and no-mmc 



This patch adds description for no-sd, no-sdio, no-mmc. We expose
these to DT as some of the controllers are unable to deal with
special cmd type due to hw limitation.

Signed-off-by: default avatarShawn Lin <shawn.lin@rock-chips.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 5fb06af7

Documentation/devicetree/bindings/mmc/mmc.txt

+3 −0
Original line number Diff line number Diff line
@@ -49,6 +49,9 @@ Optional properties: 
- mmc-hs400-enhanced-strobe: eMMC HS400 enhanced strobe mode is supported

- dsr: Value the card's (optional) Driver Stage Register (DSR) should be

  programmed with. Valid range: [0 .. 0xffff].

- no-sdio: controller is limited to send sdio cmd during initialization

- no-sd: controller is limited to send sd cmd during initialization

- no-mmc: controller is limited to send mmc cmd during initialization



*NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line

polarity properties, we have to fix the meaning of the "normal" and "inverted"