xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun* Fujitsu SDHCI controller
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunThis file documents differences between the core properties in mmc.txt
4*4882a593Smuzhiyunand the properties used by the sdhci_f_sdh30 driver.
5*4882a593Smuzhiyun
6*4882a593SmuzhiyunRequired properties:
7*4882a593Smuzhiyun- compatible: "fujitsu,mb86s70-sdhci-3.0"
8*4882a593Smuzhiyun- clocks: Must contain an entry for each entry in clock-names. It is a
9*4882a593Smuzhiyun  list of phandles and clock-specifier pairs.
10*4882a593Smuzhiyun  See ../clocks/clock-bindings.txt for details.
11*4882a593Smuzhiyun- clock-names: Should contain the following two entries:
12*4882a593Smuzhiyun	"iface" - clock used for sdhci interface
13*4882a593Smuzhiyun	"core"  - core clock for sdhci controller
14*4882a593Smuzhiyun
15*4882a593SmuzhiyunOptional properties:
16*4882a593Smuzhiyun- vqmmc-supply: phandle to the regulator device tree node, mentioned
17*4882a593Smuzhiyun  as the VCCQ/VDD_IO supply in the eMMC/SD specs.
18*4882a593Smuzhiyun- fujitsu,cmd-dat-delay-select: boolean property indicating that this host
19*4882a593Smuzhiyun  requires the CMD_DAT_DELAY control to be enabled.
20*4882a593Smuzhiyun
21*4882a593SmuzhiyunExample:
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun	sdhci1: mmc@36600000 {
24*4882a593Smuzhiyun		compatible = "fujitsu,mb86s70-sdhci-3.0";
25*4882a593Smuzhiyun		reg = <0 0x36600000 0x1000>;
26*4882a593Smuzhiyun		interrupts = <0 172 0x4>,
27*4882a593Smuzhiyun			     <0 173 0x4>;
28*4882a593Smuzhiyun		bus-width = <4>;
29*4882a593Smuzhiyun		vqmmc-supply = <&vccq_sdhci1>;
30*4882a593Smuzhiyun		clocks = <&clock 2 2 0>, <&clock 2 3 0>;
31*4882a593Smuzhiyun		clock-names = "iface", "core";
32*4882a593Smuzhiyun	};
33