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Diffstat (limited to 'Documentation/devicetree/bindings/mmc/mmci.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/mmci.txt | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt index 14a81d526118..2b584cae352a 100644 --- a/Documentation/devicetree/bindings/mmc/mmci.txt +++ b/Documentation/devicetree/bindings/mmc/mmci.txt @@ -1,19 +1,15 @@ * ARM PrimeCell MultiMedia Card Interface (MMCI) PL180/1 -The ARM PrimeCell MMCI PL180 and PL181 provides and interface for +The ARM PrimeCell MMCI PL180 and PL181 provides an interface for reading and writing to MultiMedia and SD cards alike. +This file documents differences between the core properties described +by mmc.txt and the properties used by the mmci driver. + Required properties: - compatible : contains "arm,pl18x", "arm,primecell". -- reg : contains pl18x registers and length. -- interrupts : contains the device IRQ(s). - arm,primecell-periphid : contains the PrimeCell Peripheral ID. Optional properties: -- wp-gpios : contains any write protect (ro) gpios -- cd-gpios : contains any card detection gpios -- cd-inverted : indicates whether the cd gpio is inverted -- max-frequency : contains the maximum operating frequency -- bus-width : number of data lines, can be <1>, <4>, or <8> - mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable - mmc-cap-sd-highspeed : indicates whether SD is high speed capable |