1/dts-v1/; 2/ { 3 compatible = "opencores,or1ksim"; 4 #address-cells = <1>; 5 #size-cells = <1>; 6 interrupt-parent = <&pic>; 7 8 aliases { 9 uart0 = &serial0; 10 }; 11 12 chosen { 13 bootargs = "earlycon"; 14 stdout-path = "uart0:115200"; 15 }; 16 17 memory@0 { 18 device_type = "memory"; 19 reg = <0x00000000 0x02000000>; 20 }; 21 22 cpus { 23 #address-cells = <1>; 24 #size-cells = <0>; 25 cpu@0 { 26 compatible = "opencores,or1200-rtlsvn481"; 27 reg = <0>; 28 clock-frequency = <20000000>; 29 }; 30 cpu@1 { 31 compatible = "opencores,or1200-rtlsvn481"; 32 reg = <1>; 33 clock-frequency = <20000000>; 34 }; 35 }; 36 37 ompic: ompic@98000000 { 38 compatible = "openrisc,ompic"; 39 reg = <0x98000000 16>; 40 interrupt-controller; 41 #interrupt-cells = <0>; 42 interrupts = <1>; 43 }; 44 45 /* 46 * OR1K PIC is built into CPU and accessed via special purpose 47 * registers. It is not addressable and, hence, has no 'reg' 48 * property. 49 */ 50 pic: pic { 51 compatible = "opencores,or1k-pic-level"; 52 #interrupt-cells = <1>; 53 interrupt-controller; 54 }; 55 56 serial0: serial@90000000 { 57 compatible = "opencores,uart16550-rtlsvn105", "ns16550a"; 58 reg = <0x90000000 0x100>; 59 interrupts = <2>; 60 clock-frequency = <20000000>; 61 }; 62 63}; 64