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Commit 426ad975 authored by Zach Brown's avatar Zach Brown Committed by Ulf Hansson
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mmc: sdhci: dt: Add device tree properties sdhci-caps and sdhci-caps-mask 



On some systems the sdhci capabilty register is incorrect for one
reason or another.

The sdhci-caps-mask property specifies which bits in the register
are incorrect and should be turned off before using sdhci-caps to turn
on bits.

The sdhci-caps property specifies which bits should be turned on.

Signed-off-by: default avatarZach Brown <zach.brown@ni.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 49adc0ca

Documentation/devicetree/bindings/mmc/sdhci.txt

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The properties specific for SD host controllers. For properties shared by MMC

host controllers refer to the mmc[1] bindings.



  [1] Documentation/devicetree/bindings/mmc/mmc.txt



Optional properties:

- sdhci-caps-mask: The sdhci capabilities register is incorrect. This 64bit

  property corresponds to the bits in the sdhci capabilty register. If the bit

  is on in the mask then the bit is incorrect in the register and should be

  turned off, before applying sdhci-caps.

- sdhci-caps: The sdhci capabilities register is incorrect. This 64bit

  property corresponds to the bits in the sdhci capability register. If the

  bit is on in the property then the bit should be turned on.