37 lines
1.5 KiB
Plaintext
37 lines
1.5 KiB
Plaintext
|
* TI OMAP SDHCI Controller
|
||
|
|
|
||
|
|
Refer to mmc.txt for standard MMC bindings.
|
||
|
|
|
||
|
|
For UHS devices which require tuning, the device tree should have a "cpu_thermal" node which maps to the appropriate thermal zone. This is used to get the temperature of the zone during tuning.
|
||
|
|
|
||
|
|
Required properties:
|
||
|
|
- compatible: Should be "ti,dra7-sdhci" for DRA7 and DRA72 controllers
|
||
|
|
Should be "ti,k2g-sdhci" for K2G
|
||
|
|
Should be "ti,am335-sdhci" for am335x controllers
|
||
|
|
Should be "ti,am437-sdhci" for am437x controllers
|
||
|
|
- ti,hwmods: Must be "mmc<n>", <n> is controller instance starting 1
|
||
|
|
(Not required for K2G).
|
||
|
|
- pinctrl-names: Should be subset of "default", "hs", "sdr12", "sdr25", "sdr50",
|
||
|
|
"ddr50-rev11", "sdr104-rev11", "ddr50", "sdr104",
|
||
|
|
"ddr_1_8v-rev11", "ddr_1_8v" or "ddr_3_3v", "hs200_1_8v-rev11",
|
||
|
|
"hs200_1_8v",
|
||
|
|
- pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt
|
||
|
|
|
||
|
|
Optional properties:
|
||
|
|
- 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: List of DMA request names. These strings correspond 1:1 with the
|
||
|
|
DMA specifiers listed in dmas. The string naming is to be "tx"
|
||
|
|
and "rx" for TX and RX DMA requests, respectively.
|
||
|
|
|
||
|
|
Example:
|
||
|
|
mmc1: mmc@4809c000 {
|
||
|
|
compatible = "ti,dra7-sdhci";
|
||
|
|
reg = <0x4809c000 0x400>;
|
||
|
|
ti,hwmods = "mmc1";
|
||
|
|
bus-width = <4>;
|
||
|
|
vmmc-supply = <&vmmc>; /* phandle to regulator node */
|
||
|
|
dmas = <&sdma 61 &sdma 62>;
|
||
|
|
dma-names = "tx", "rx";
|
||
|
|
};
|