1 * TI Highspeed MMC host controller for DaVinci
2
3 The Highspeed MMC Host Controller on TI DaVinci family
4 provides an interface for MMC, SD and SDIO types of memory cards.
5
6 This file documents the properties used by the davinci_mmc driver.
7
8 Required properties:
9 - compatible:
10 Should be "ti,da830-mmc": for da830, da850, dm365
11 Should be "ti,dm355-mmc": for dm355, dm644x
12
13 Optional 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
22 Example:
23 mmc0: 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 };
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