xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/mmc/mmc-card.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyunmmc-card / eMMC bindings
2*4882a593Smuzhiyun------------------------
3*4882a593Smuzhiyun
4*4882a593SmuzhiyunThis documents describes the devicetree bindings for a mmc-host controller
5*4882a593Smuzhiyunchild node describing a mmc-card / an eMMC, see "Use of Function subnodes"
6*4882a593Smuzhiyunin mmc.txt
7*4882a593Smuzhiyun
8*4882a593SmuzhiyunRequired properties:
9*4882a593Smuzhiyun-compatible : Must be "mmc-card"
10*4882a593Smuzhiyun-reg        : Must be <0>
11*4882a593Smuzhiyun
12*4882a593SmuzhiyunOptional properties:
13*4882a593Smuzhiyun-broken-hpi : Use this to indicate that the mmc-card has a broken hpi
14*4882a593Smuzhiyun              implementation, and that hpi should not be used
15*4882a593Smuzhiyun
16*4882a593SmuzhiyunExample:
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun&mmc2 {
19*4882a593Smuzhiyun	pinctrl-names = "default";
20*4882a593Smuzhiyun	pinctrl-0 = <&mmc2_pins_a>;
21*4882a593Smuzhiyun	vmmc-supply = <&reg_vcc3v3>;
22*4882a593Smuzhiyun	bus-width = <8>;
23*4882a593Smuzhiyun	non-removable;
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun	mmccard: mmccard@0 {
26*4882a593Smuzhiyun		reg = <0>;
27*4882a593Smuzhiyun		compatible = "mmc-card";
28*4882a593Smuzhiyun		broken-hpi;
29*4882a593Smuzhiyun	};
30*4882a593Smuzhiyun};
31