1// SPDX-License-Identifier: GPL-2.0 2/dts-v1/; 3 4/ { 5 compatible = "cdns,xtensa-iss"; 6 #address-cells = <1>; 7 #size-cells = <1>; 8 interrupt-parent = <&pic>; 9 10 chosen { 11 bootargs = "console=ttyS0,115200n8 debug"; 12 }; 13 14 memory@0 { 15 device_type = "memory"; 16 reg = <0x00000000 0x80000000>; 17 }; 18 19 cpus { 20 #address-cells = <1>; 21 #size-cells = <0>; 22 cpu@0 { 23 compatible = "cdns,xtensa-cpu"; 24 reg = <0>; 25 clocks = <&osc>; 26 }; 27 }; 28 29 clocks { 30 osc: osc { 31 #clock-cells = <0>; 32 compatible = "fixed-clock"; 33 clock-frequency = <40000000>; 34 }; 35 }; 36 37 pic: pic { 38 compatible = "cdns,xtensa-pic"; 39 /* one cell: internal irq number, 40 * two cells: second cell == 0: internal irq number 41 * second cell == 1: external irq number 42 */ 43 #address-cells = <0>; 44 #interrupt-cells = <2>; 45 interrupt-controller; 46 }; 47 48 pci { 49 compatible = "pci-host-ecam-generic"; 50 device_type = "pci"; 51 #address-cells = <3>; 52 #size-cells = <2>; 53 #interrupt-cells = <0x1>; 54 55 bus-range = <0x0 0x3e>; 56 reg = <0xf0100000 0x03f00000>; 57 58 // BUS_ADDRESS(3) CPU_PHYSICAL(1) SIZE(2) 59 ranges = <0x01000000 0x0 0x00000000 0xf0000000 0x0 0x00010000>, 60 <0x02000000 0x0 0xf4000000 0xf4000000 0x0 0x08000000>; 61 62 // PCI_DEVICE(3) INT#(1) CONTROLLER(PHANDLE) CONTROLLER_DATA(2) 63 interrupt-map = < 64 0x0000 0x0 0x0 0x1 &pic 0x0 0x1 65 0x0800 0x0 0x0 0x1 &pic 0x1 0x1 66 0x1000 0x0 0x0 0x1 &pic 0x2 0x1 67 0x1800 0x0 0x0 0x1 &pic 0x3 0x1 68 >; 69 70 interrupt-map-mask = <0x1800 0x0 0x0 0x7>; 71 }; 72}; 73