|  | * ARM PrimeCell MultiMedia Card Interface (MMCI) PL180/1 | 
|  |  | 
|  | 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". | 
|  | - arm,primecell-periphid : contains the PrimeCell Peripheral ID. | 
|  |  | 
|  | Optional properties: | 
|  | - mmc-cap-mmc-highspeed  : indicates whether MMC is high speed capable | 
|  | - mmc-cap-sd-highspeed   : indicates whether SD is high speed capable |