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riscv: dts: sophgo: add basic device tree for Milk-V Duo board

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Import device tree from Linux kernel to add basic support for CPU, PLIC,
UART and Timer. The name cv1800b in the filename represent the chip used
on Milk-V Duo board.

Signed-off-by: Kongyang Liu <seashell11234455@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
This commit is contained in:
Kongyang Liu 2024-01-28 15:05:24 +08:00 committed by Leo Yu-Chi Liang
parent 386db9a26b
commit f03d2ab206
4 changed files with 249 additions and 0 deletions
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1
arch/riscv/dts/Makefile
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@ -2,6 +2,7 @@
dtb-$(CONFIG_TARGET_ANDES_AE350) += ae350_32.dtb ae350_64.dtb
dtb-$(CONFIG_TARGET_MICROCHIP_ICICLE) += mpfs-icicle-kit.dtb
dtb-$(CONFIG_TARGET_MILKV_DUO) += cv1800b-milkv-duo.dtb
dtb-$(CONFIG_TARGET_QEMU_VIRT) += qemu-virt32.dtb qemu-virt64.dtb
dtb-$(CONFIG_TARGET_OPENPITON_RISCV64) += openpiton-riscv64.dtb
dtb-$(CONFIG_TARGET_SIFIVE_UNLEASHED) += hifive-unleashed-a00.dtb

38
arch/riscv/dts/cv1800b-milkv-duo.dts Normal file
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@ -0,0 +1,38 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
*/
/dts-v1/;
#include "cv1800b.dtsi"
/ {
model = "Milk-V Duo";
compatible = "milkv,duo", "sophgo,cv1800b";
aliases {
serial0 = &uart0;
serial1 = &uart1;
serial2 = &uart2;
serial3 = &uart3;
serial4 = &uart4;
};
chosen {
stdout-path = "serial0:115200n8";
};
memory@80000000 {
device_type = "memory";
reg = <0x80000000 0x3f40000>;
};
};
&osc {
clock-frequency = <25000000>;
};
&uart0 {
status = "okay";
};

18
arch/riscv/dts/cv1800b.dtsi Normal file
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@ -0,0 +1,18 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
*/
#include "cv18xx.dtsi"
/ {
compatible = "sophgo,cv1800b";
};
&plic {
compatible = "sophgo,cv1800b-plic", "thead,c900-plic";
};
&clint {
compatible = "sophgo,cv1800b-clint", "thead,c900-clint";
};

192
arch/riscv/dts/cv18xx.dtsi Normal file
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@ -0,0 +1,192 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
* Copyright (C) 2023 Inochi Amaoto <inochiama@outlook.com>
*/
#include <dt-bindings/interrupt-controller/irq.h>
/ {
#address-cells = <1>;
#size-cells = <1>;
cpus: cpus {
#address-cells = <1>;
#size-cells = <0>;
timebase-frequency = <25000000>;
cpu0: cpu@0 {
compatible = "thead,c906", "riscv";
device_type = "cpu";
reg = <0>;
d-cache-block-size = <64>;
d-cache-sets = <512>;
d-cache-size = <65536>;
i-cache-block-size = <64>;
i-cache-sets = <128>;
i-cache-size = <32768>;
mmu-type = "riscv,sv39";
riscv,isa = "rv64imafdc";
riscv,isa-base = "rv64i";
riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "zicntr", "zicsr",
"zifencei", "zihpm";
cpu0_intc: interrupt-controller {
compatible = "riscv,cpu-intc";
interrupt-controller;
#interrupt-cells = <1>;
};
};
};
osc: oscillator {
compatible = "fixed-clock";
clock-output-names = "osc_25m";
#clock-cells = <0>;
};
soc {
compatible = "simple-bus";
interrupt-parent = <&plic>;
#address-cells = <1>;
#size-cells = <1>;
dma-noncoherent;
ranges;
gpio0: gpio@3020000 {
compatible = "snps,dw-apb-gpio";
reg = <0x3020000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
porta: gpio-controller@0 {
compatible = "snps,dw-apb-gpio-port";
gpio-controller;
#gpio-cells = <2>;
ngpios = <32>;
reg = <0>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <60 IRQ_TYPE_LEVEL_HIGH>;
};
};
gpio1: gpio@3021000 {
compatible = "snps,dw-apb-gpio";
reg = <0x3021000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
portb: gpio-controller@0 {
compatible = "snps,dw-apb-gpio-port";
gpio-controller;
#gpio-cells = <2>;
ngpios = <32>;
reg = <0>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <61 IRQ_TYPE_LEVEL_HIGH>;
};
};
gpio2: gpio@3022000 {
compatible = "snps,dw-apb-gpio";
reg = <0x3022000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
portc: gpio-controller@0 {
compatible = "snps,dw-apb-gpio-port";
gpio-controller;
#gpio-cells = <2>;
ngpios = <32>;
reg = <0>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <62 IRQ_TYPE_LEVEL_HIGH>;
};
};
gpio3: gpio@3023000 {
compatible = "snps,dw-apb-gpio";
reg = <0x3023000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
portd: gpio-controller@0 {
compatible = "snps,dw-apb-gpio-port";
gpio-controller;
#gpio-cells = <2>;
ngpios = <32>;
reg = <0>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <63 IRQ_TYPE_LEVEL_HIGH>;
};
};
uart0: serial@4140000 {
compatible = "snps,dw-apb-uart";
reg = <0x04140000 0x100>;
interrupts = <44 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&osc>;
reg-shift = <2>;
reg-io-width = <4>;
status = "disabled";
};
uart1: serial@4150000 {
compatible = "snps,dw-apb-uart";
reg = <0x04150000 0x100>;
interrupts = <45 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&osc>;
reg-shift = <2>;
reg-io-width = <4>;
status = "disabled";
};
uart2: serial@4160000 {
compatible = "snps,dw-apb-uart";
reg = <0x04160000 0x100>;
interrupts = <46 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&osc>;
reg-shift = <2>;
reg-io-width = <4>;
status = "disabled";
};
uart3: serial@4170000 {
compatible = "snps,dw-apb-uart";
reg = <0x04170000 0x100>;
interrupts = <47 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&osc>;
reg-shift = <2>;
reg-io-width = <4>;
status = "disabled";
};
uart4: serial@41c0000 {
compatible = "snps,dw-apb-uart";
reg = <0x041c0000 0x100>;
interrupts = <48 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&osc>;
reg-shift = <2>;
reg-io-width = <4>;
status = "disabled";
};
plic: interrupt-controller@70000000 {
reg = <0x70000000 0x4000000>;
interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>;
interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <2>;
riscv,ndev = <101>;
};
clint: timer@74000000 {
reg = <0x74000000 0x10000>;
interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>;
};
};
};