xref: /freebsd/sys/contrib/device-tree/Bindings/mmc/vt8500-sdmmc.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel Vadot* Wondermedia WM8505/WM8650 SD/MMC Host Controller
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotThis file documents differences between the core properties described
4*c66ec88fSEmmanuel Vadotby mmc.txt and the properties used by the wmt-sdmmc driver.
5*c66ec88fSEmmanuel Vadot
6*c66ec88fSEmmanuel VadotRequired properties:
7*c66ec88fSEmmanuel Vadot- compatible: Should be "wm,wm8505-sdhc".
8*c66ec88fSEmmanuel Vadot- interrupts: Two interrupts are required - regular irq and dma irq.
9*c66ec88fSEmmanuel Vadot
10*c66ec88fSEmmanuel VadotOptional properties:
11*c66ec88fSEmmanuel Vadot- sdon-inverted: SD_ON bit is inverted on the controller
12*c66ec88fSEmmanuel Vadot
13*c66ec88fSEmmanuel VadotExamples:
14*c66ec88fSEmmanuel Vadot
15*c66ec88fSEmmanuel Vadotsdhc@d800a000 {
16*c66ec88fSEmmanuel Vadot	compatible = "wm,wm8505-sdhc";
17*c66ec88fSEmmanuel Vadot	reg = <0xd800a000 0x1000>;
18*c66ec88fSEmmanuel Vadot	interrupts = <20 21>;
19*c66ec88fSEmmanuel Vadot	clocks = <&sdhc>;
20*c66ec88fSEmmanuel Vadot	bus-width = <4>;
21*c66ec88fSEmmanuel Vadot	sdon-inverted;
22*c66ec88fSEmmanuel Vadot};
23*c66ec88fSEmmanuel Vadot
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