xref: /rk3399_rockchip-uboot/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt (revision 39632b4a01210e329333d787d828157dcd2c7328)
1*022b7fb5SFlorian FainelliBroadcom STB wake-up Timer
2*022b7fb5SFlorian Fainelli
3*022b7fb5SFlorian FainelliThe Broadcom STB wake-up timer provides a 27Mhz resolution timer, with the
4*022b7fb5SFlorian Fainelliability to wake up the system from low-power suspend/standby modes.
5*022b7fb5SFlorian Fainelli
6*022b7fb5SFlorian FainelliRequired properties:
7*022b7fb5SFlorian Fainelli- compatible     : should contain "brcm,brcmstb-waketimer"
8*022b7fb5SFlorian Fainelli- reg            : the register start and length for the WKTMR block
9*022b7fb5SFlorian Fainelli- interrupts     : The TIMER interrupt
10*022b7fb5SFlorian Fainelli- interrupt-parent: The phandle to the Always-On (AON) Power Management (PM) L2
11*022b7fb5SFlorian Fainelli                    interrupt controller node
12*022b7fb5SFlorian Fainelli- clocks	 : The phandle to the UPG fixed clock (27Mhz domain)
13*022b7fb5SFlorian Fainelli
14*022b7fb5SFlorian FainelliExample:
15*022b7fb5SFlorian Fainelli
16*022b7fb5SFlorian Fainelliwaketimer@f0411580 {
17*022b7fb5SFlorian Fainelli	compatible = "brcm,brcmstb-waketimer";
18*022b7fb5SFlorian Fainelli	reg = <0xf0411580 0x14>;
19*022b7fb5SFlorian Fainelli	interrupts = <0x3>;
20*022b7fb5SFlorian Fainelli	interrupt-parent = <&aon_pm_l2_intc>;
21*022b7fb5SFlorian Fainelli	clocks = <&upg_fixed>;
22*022b7fb5SFlorian Fainelli};
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