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powerpc: introduce and document sdhci,wp-inverted property for eSDHC

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eSDHC block in MPC837x SOCs reports inverted write-protect state, soon
sdhci-of driver will look for sdhci,wp-inverted properties to decide
whether apply a specific quirk.

So, document the property and add it to device tree source files.

Signed-off-by: Anton Vorontsov <[email protected]>
Cc: Pierre Ossman <[email protected]>
Cc: Kumar Gala <[email protected]>
Cc: David Vrabel <[email protected]>
Cc: Ben Dooks <[email protected]>
Cc: Sascha Hauer <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Anton Vorontsov 2009-09-22 16:45:14 -07:00 • committed by Linus Torvalds
commit 50dfe70fe9
8 changed files with 9 additions and 0 deletions
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Documentation/powerpc/dts-bindings/fsl/esdhc.txt
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@ -10,6 +10,8 @@ Required properties:
- interrupts : should contain eSDHC interrupt.
- interrupt-parent : interrupt source phandle.
- clock-frequency : specifies eSDHC base clock frequency.
- sdhci,wp-inverted : (optional) specifies that eSDHC controller
reports inverted write-protect state;
- sdhci,1-bit-only : (optional) specifies that a controller can
only handle 1-bit data transfers.