davinci_mmc.txt (1006B)
1* TI Highspeed MMC host controller for DaVinci 2 3The Highspeed MMC Host Controller on TI DaVinci family 4provides an interface for MMC, SD and SDIO types of memory cards. 5 6This file documents the properties used by the davinci_mmc driver. 7 8Required properties: 9- compatible: 10 Should be "ti,da830-mmc": for da830, da850, dm365 11 Should be "ti,dm355-mmc": for dm355, dm644x 12 13Optional properties: 14- bus-width: Number of data lines, can be <1>, <4>, or <8>, default <1> 15- max-frequency: Maximum operating clock frequency, default 25MHz. 16- dmas: List of DMA specifiers with the controller specific format 17 as described in the generic DMA client binding. A tx and rx 18 specifier is required. 19- dma-names: RX and TX DMA request names. These strings correspond 20 1:1 with the DMA specifiers listed in dmas. 21 22Example: 23mmc0: mmc@1c40000 { 24 compatible = "ti,da830-mmc", 25 reg = <0x40000 0x1000>; 26 interrupts = <16>; 27 bus-width = <4>; 28 max-frequency = <50000000>; 29 dmas = <&edma 16 30 &edma 17>; 31 dma-names = "rx", "tx"; 32};