| * TI Highspeed MMC host controller for DaVinci |
| |
| The Highspeed MMC Host Controller on TI DaVinci family |
| provides an interface for MMC, SD and SDIO types of memory cards. |
| |
| This file documents the properties used by the davinci_mmc driver. |
| |
| Required properties: |
| - compatible: |
| Should be "ti,da830-mmc": for da830, da850, dm365 |
| Should be "ti,dm355-mmc": for dm355, dm644x |
| |
| Optional properties: |
| - bus-width: Number of data lines, can be <1>, <4>, or <8>, default <1> |
| - max-frequency: Maximum operating clock frequency, default 25MHz. |
| - dmas: List of DMA specifiers with the controller specific format |
| as described in the generic DMA client binding. A tx and rx |
| specifier is required. |
| - dma-names: RX and TX DMA request names. These strings correspond |
| 1:1 with the DMA specifiers listed in dmas. |
| |
| Example: |
| mmc0: mmc@1c40000 { |
| compatible = "ti,da830-mmc", |
| reg = <0x40000 0x1000>; |
| interrupts = <16>; |
| status = "okay"; |
| bus-width = <4>; |
| max-frequency = <50000000>; |
| dmas = <&edma 16 |
| &edma 17>; |
| dma-names = "rx", "tx"; |
| }; |
