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riscv: dts: sophgo: add device tree for LicheeRV Nano

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Import a slightly modified version of the LicheeRV Nano and SG2002
device trees from the Linux Kernel. The current supported IPs are UART,
MMC, Timer, PLIC and CLINT.

Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
This commit is contained in:
Thomas Bonnefille
2024-11-12 15:57:37 +01:00
committed by Leo Yu-Chi Liang
parent 62181bbf71
commit 4897de90c3
3 changed files with 80 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_MILKV_DUO) += cv1800b-milkv-duo.dtb
dtb-$(CONFIG_TARGET_LICHEERV_NANO) += sg2002-licheerv-nano-b.dtb
dtb-$(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

45
arch/riscv/dts/sg2002-licheerv-nano-b.dts Normal file
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@@ -0,0 +1,45 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2024 Thomas Bonnefille <thomas.bonnefille@bootlin.com>
*/
/dts-v1/;
#include "sg2002.dtsi"
/ {
model = "LicheeRV Nano B";
compatible = "sipeed,licheerv-nano-b", "sipeed,licheerv-nano", "sophgo,sg2002";
aliases {
gpio0 = &gpio0;
gpio1 = &gpio1;
gpio2 = &gpio2;
gpio3 = &gpio3;
serial0 = &uart0;
serial1 = &uart1;
serial2 = &uart2;
serial3 = &uart3;
serial4 = &uart4;
};
chosen {
stdout-path = "serial0:115200n8";
};
};
&osc {
clock-frequency = <25000000>;
};
&sdhci0 {
status = "okay";
bus-width = <4>;
no-1-8-v;
no-mmc;
no-sdio;
};
&uart0 {
status = "okay";
};

34
arch/riscv/dts/sg2002.dtsi Normal file
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@@ -0,0 +1,34 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2024 Thomas Bonnefille <thomas.bonnefille@bootlin.com>
*/
/dts-v1/;
#include <dt-bindings/interrupt-controller/irq.h>
#include "cv18xx.dtsi"
/ {
compatible = "sophgo,sg2002";
memory@80000000 {
device_type = "memory";
reg = <0x80000000 0x10000000>;
};
};
&plic {
compatible = "sophgo,sg2002-plic", "sophgo,cv1800b-plic", "thead,c900-plic";
};
&clint {
compatible = "sophgo,sg2002-plic", "sophgo,cv1800b-clint", "thead,c900-clint";
};
&clk {
compatible = "sophgo,sg2002-clk", "sophgo,cv1800-clk";
};
&sdhci0 {
compatible = "sophgo,sg2002-dwcmshc", "sophgo,cv1800b-dwcmshc";
};