xref: /freebsd/sys/contrib/device-tree/Bindings/reset/snps,hsdk-reset.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotBinding for the Synopsys HSDK reset controller
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotThis binding uses the common reset binding[1].
4*c66ec88fSEmmanuel Vadot
5*c66ec88fSEmmanuel Vadot[1] Documentation/devicetree/bindings/reset/reset.txt
6*c66ec88fSEmmanuel Vadot
7*c66ec88fSEmmanuel VadotRequired properties:
8*c66ec88fSEmmanuel Vadot- compatible: should be "snps,hsdk-reset".
9*c66ec88fSEmmanuel Vadot- reg: should always contain 2 pairs address - length: first for reset
10*c66ec88fSEmmanuel Vadot  configuration register and second for corresponding SW reset and status bits
11*c66ec88fSEmmanuel Vadot  register.
12*c66ec88fSEmmanuel Vadot- #reset-cells: from common reset binding; Should always be set to 1.
13*c66ec88fSEmmanuel Vadot
14*c66ec88fSEmmanuel VadotExample:
15*c66ec88fSEmmanuel Vadot	reset: reset@880 {
16*c66ec88fSEmmanuel Vadot		compatible = "snps,hsdk-reset";
17*c66ec88fSEmmanuel Vadot		#reset-cells = <1>;
18*c66ec88fSEmmanuel Vadot		reg = <0x8A0 0x4>, <0xFF0 0x4>;
19*c66ec88fSEmmanuel Vadot	};
20*c66ec88fSEmmanuel Vadot
21*c66ec88fSEmmanuel VadotSpecifying reset lines connected to IP modules:
22*c66ec88fSEmmanuel Vadot	ethernet@.... {
23*c66ec88fSEmmanuel Vadot		....
24*c66ec88fSEmmanuel Vadot		resets = <&reset HSDK_V1_ETH_RESET>;
25*c66ec88fSEmmanuel Vadot		....
26*c66ec88fSEmmanuel Vadot	};
27*c66ec88fSEmmanuel Vadot
28*c66ec88fSEmmanuel VadotThe index could be found in <dt-bindings/reset/snps,hsdk-reset.h>
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