/* SPDX-License-Identifier: SHL-0.51 */

/* Copyright 2018 ETH Zurich and University of Bologna.
 * Copyright and related rights are licensed under the Solderpad Hardware
 * License, Version 0.51 (the "License"); you may not use this file except in
 * compliance with the License.  You may obtain a copy of the License at
 * http://solderpad.org/licenses/SHL-0.51. Unless required by applicable law
 * or agreed to in writing, software, hardware and materials distributed under
 * this License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */

/dts-v1/;

/ {
  #address-cells = <2>;
  #size-cells = <2>;
  compatible = "eth,ariane-bare-dev";
  model = "eth,ariane-bare";
  chosen {
  };
  cpus {
    #address-cells = <1>;
    #size-cells = <0>;
    timebase-frequency = <15000000>; // 15 MHz
    CPU0: cpu@0 {
      clock-frequency = <50000000>; // 50 MHz
      device_type = "cpu";
      reg = <0>;
      status = "okay";
      compatible = "eth, ariane", "riscv";
      riscv,isa = "rv64imafdc";
      mmu-type = "riscv,sv39";
      tlb-split;
      // HLIC - hart local interrupt controller
      CPU0_intc: interrupt-controller {
        #interrupt-cells = <1>;
        interrupt-controller;
        compatible = "riscv,cpu-intc";
      };
    };
  };
  memory@80000000 {
    device_type = "memory";
    reg = <0x0 0x80000000 0x0 0x40000000>;
  };
  leds {
    compatible = "gpio-leds";
    heartbeat-led {
      gpios = <&xlnx_gpio 1 0>;
      linux,default-trigger = "heartbeat";
      retain-state-suspended;
    };
  };
  L26: soc {
    #address-cells = <2>;
    #size-cells = <2>;
    compatible = "eth,ariane-bare-soc", "simple-bus";
    ranges;
    clint@2000000 {
      compatible = "riscv,clint0";
      interrupts-extended = <&CPU0_intc 3 &CPU0_intc 7>;
      reg = <0x0 0x2000000 0x0 0xc0000>;
      reg-names = "control";
    };
    PLIC0: interrupt-controller@c000000 {
      #address-cells = <0>;
      #interrupt-cells = <1>;
      compatible = "riscv,plic0";
      interrupt-controller;
      interrupts-extended = <&CPU0_intc 11 &CPU0_intc 9>;
      reg = <0x0 0xc000000 0x0 0x4000000>;
      riscv,max-priority = <7>;
      riscv,ndev = <30>;
    };
    debug-controller@0 {
      compatible = "riscv,debug-013";
      interrupts-extended = <&CPU0_intc 65535>;
      reg = <0x0 0x0 0x0 0x1000>;
      reg-names = "control";
    };
    uart@10000000 {
      compatible = "ns16750";
      reg = <0x0 0x10000000 0x0 0x1000>;
      clock-frequency = <50000000>;
      current-speed = <115200>;
      interrupt-parent = <&PLIC0>;
      interrupts = <1>;
      reg-shift = <2>; // regs are spaced on 32 bit boundary
      reg-io-width = <4>; // only 32-bit access are supported
    };
    timer@18000000 {
      compatible = "pulp,apb_timer";
      interrupts = <0x00000004 0x00000005 0x00000006 0x00000007>;
      reg = <0x00000000 0x18000000 0x00000000 0x00001000>;
      interrupt-parent = <&PLIC0>;
      reg-names = "control";
    };
    xps-spi@20000000 {
      compatible = "xlnx,xps-spi-2.00.b", "xlnx,xps-spi-2.00.a";
      #address-cells = <1>;
      #size-cells = <0>;
      interrupt-parent = <&PLIC0>;
      interrupts = < 2 2 >;
      reg = < 0x0 0x20000000 0x0 0x1000 >;
      xlnx,family = "kintex7";
      xlnx,fifo-exist = <0x1>;
      xlnx,num-ss-bits = <0x1>;
      xlnx,num-transfer-bits = <0x8>;
      xlnx,sck-ratio = <0x4>;

      mmc@0 {
        compatible = "mmc-spi-slot";
        reg = <0>;
        spi-max-frequency = <12500000>;
        voltage-ranges = <3300 3300>;
        disable-wp;
      };

      // mmc-slot@0 {
      //   compatible = "fsl,mpc8323rdb-mmc-slot", "mmc-spi-slot";
      //   reg = <0>;  //Chip select 0
      //   spi-max-frequency = <12500000>;
      //   voltage-ranges = <3300 3300>;
      //   //interrupts = < 2 2 >;
      //   //interrupt-parent = <&PLIC0>;
      // };
    };
    eth: lowrisc-eth@30000000 {
      compatible = "lowrisc-eth";
      device_type = "network";
      interrupt-parent = <&PLIC0>;
      interrupts = <3 0>;
      local-mac-address = [00 18 3e 02 e3 7f]; // This needs to change if more than one GenesysII on a VLAN
      reg = <0x0 0x30000000 0x0 0x8000>;
    };
    xlnx_gpio: gpio@40000000 {
      #gpio-cells = <2>;
      compatible = "xlnx,xps-gpio-1.00.a";
      gpio-controller ;
      reg = <0x0 0x40000000 0x0 0x10000 >;
      xlnx,all-inputs = <0x0>;
      xlnx,all-inputs-2 = <0x0>;
      xlnx,dout-default = <0x0>;
      xlnx,dout-default-2 = <0x0>;
      xlnx,gpio-width = <0x8>;
      xlnx,gpio2-width = <0x8>;
      xlnx,interrupt-present = <0x0>;
      xlnx,is-dual = <0x1>;
      xlnx,tri-default = <0xffffffff>;
      xlnx,tri-default-2 = <0xffffffff>;
    };
  };
};