| Lee Jones | 8dde8c4 | 2012-03-14 13:58:34 +0000 | [diff] [blame] | 1 | * ARM PrimeCell MultiMedia Card Interface (MMCI) PL180/1 |
| 2 | |
| 3 | The ARM PrimeCell MMCI PL180 and PL181 provides and interface for |
| 4 | reading and writing to MultiMedia and SD cards alike. |
| 5 | |
| 6 | Required properties: |
| 7 | - compatible : contains "arm,pl18x", "arm,primecell". |
| 8 | - reg : contains pl18x registers and length. |
| 9 | - interrupts : contains the device IRQ(s). |
| 10 | - arm,primecell-periphid : contains the PrimeCell Peripheral ID. |
| 11 | |
| 12 | Optional properties: |
| 13 | - wp-gpios : contains any write protect (ro) gpios |
| 14 | - cd-gpios : contains any card detection gpios |
| 15 | - cd-inverted : indicates whether the cd gpio is inverted |
| 16 | - max-frequency : contains the maximum operating frequency |
| 17 | - bus-width : number of data lines, can be <1>, <4>, or <8> |
| 18 | - mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable |
| 19 | - mmc-cap-sd-highspeed : indicates whether SD is high speed capable |