1* Designware APB timer 2 3Required properties: 4- compatible: "snps,dw-apb-timer-sp" or "snps,dw-apb-timer-osc" 5- reg: physical base address of the controller and length of memory mapped 6 region. 7- interrupts: IRQ line for the timer. 8- either clocks+clock-names or clock-frequency properties 9 10Optional properties: 11- clocks : list of clock specifiers, corresponding to entries in 12 the clock-names property; 13- clock-names : should contain "timer" and "pclk" entries, matching entries 14 in the clocks property. 15- clock-frequency: The frequency in HZ of the timer. 16- clock-freq: For backwards compatibility with picoxcell 17 18If using the clock specifiers, the pclk clock is optional, as not all 19systems may use one. 20 21 22Example: 23 24 timer1: timer@ffc09000 { 25 compatible = "snps,dw-apb-timer-sp"; 26 interrupts = <0 168 4>; 27 clock-frequency = <200000000>; 28 reg = <0xffc09000 0x1000>; 29 }; 30 31 timer2: timer@ffd00000 { 32 compatible = "snps,dw-apb-timer-osc"; 33 interrupts = <0 169 4>; 34 clock-frequency = <200000000>; 35 reg = <0xffd00000 0x1000>; 36 }; 37 38 timer3: timer@ffe00000 { 39 compatible = "snps,dw-apb-timer-osc"; 40 interrupts = <0 170 4>; 41 reg = <0xffe00000 0x1000>; 42 clocks = <&timer_clk>, <&timer_pclk>; 43 clock-names = "timer", "pclk"; 44 }; 45