freebsd-dev/sys/boot/fdt/dts/riscv/lowrisc.dts
Ruslan Bukin 3f8f5599a3 o Add device tree files and kernel configuration files
for RISC-V cpus synthesized on FPGA hardware.
o Include new files to the build.
2016-04-26 13:22:08 +00:00

109 lines
2.9 KiB
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/*-
* Copyright (c) 2016 Ruslan Bukin <br@bsdpad.com>
* All rights reserved.
*
* Portions of this software were developed by SRI International and the
* University of Cambridge Computer Laboratory under DARPA/AFRL contract
* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
*
* Portions of this software were developed by the University of Cambridge
* Computer Laboratory as part of the CTSRD Project, with support from the
* UK Higher Education Innovation Fund (HEIF).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/dts-v1/;
/ {
model = "UC Berkeley Spike Simulator RV64I";
compatible = "riscv,rv64i";
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <1>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
compatible = "riscv,rv64i";
reg = <0x40002000>;
};
};
aliases {
serial0 = &serial0;
};
memory {
device_type = "memory";
reg = <0x0 0x8000000>; /* 128MB at 0x0 */
};
soc {
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <1>;
compatible = "simple-bus";
ranges;
pic0: pic@0 {
compatible = "riscv,pic";
interrupt-controller;
};
serial0: serial@80001000 {
compatible = "ns16550";
reg = <0x80001000 0x1000>;
reg-shift = <2>;
interrupts = < 4 >;
interrupt-parent = <&pic0>;
current-speed = <115200>;
clock-frequency = < 1000000 >;
status = "okay";
};
spi0: spi@80010000 {
compatible = "xlnx,xps-spi-3.2";
reg = <0x80010000 0x1000>;
};
timer0: timer@0 {
compatible = "riscv,timer";
interrupts = < 1 >;
interrupt-parent = < &pic0 >;
clock-frequency = < 1000000 >;
};
};
chosen {
bootargs = "-v";
stdin = "serial0";
stdout = "serial0";
};
};