1*c66ec88fSEmmanuel Vadot* ARMv7M System Timer 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotARMv7-M includes a system timer, known as SysTick. Current driver only 4*c66ec88fSEmmanuel Vadotimplements the clocksource feature. 5*c66ec88fSEmmanuel Vadot 6*c66ec88fSEmmanuel VadotRequired properties: 7*c66ec88fSEmmanuel Vadot- compatible : Should be "arm,armv7m-systick" 8*c66ec88fSEmmanuel Vadot- reg : The address range of the timer 9*c66ec88fSEmmanuel Vadot 10*c66ec88fSEmmanuel VadotRequired clocking property, have to be one of: 11*c66ec88fSEmmanuel Vadot- clocks : The input clock of the timer 12*c66ec88fSEmmanuel Vadot- clock-frequency : The rate in HZ in input of the ARM SysTick 13*c66ec88fSEmmanuel Vadot 14*c66ec88fSEmmanuel VadotExamples: 15*c66ec88fSEmmanuel Vadot 16*c66ec88fSEmmanuel Vadotsystick: timer@e000e010 { 17*c66ec88fSEmmanuel Vadot compatible = "arm,armv7m-systick"; 18*c66ec88fSEmmanuel Vadot reg = <0xe000e010 0x10>; 19*c66ec88fSEmmanuel Vadot clocks = <&clk_systick>; 20*c66ec88fSEmmanuel Vadot}; 21*c66ec88fSEmmanuel Vadot 22*c66ec88fSEmmanuel Vadotsystick: timer@e000e010 { 23*c66ec88fSEmmanuel Vadot compatible = "arm,armv7m-systick"; 24*c66ec88fSEmmanuel Vadot reg = <0xe000e010 0x10>; 25*c66ec88fSEmmanuel Vadot clock-frequency = <90000000>; 26*c66ec88fSEmmanuel Vadot}; 27