【开源】RISC-V 修改neofetch中的Host描述

neofetch 介绍

neofetch 是一款用于在终端中显示系统信息的工具，其主要特点是以美观的方式展示宿主机的基本信息。它通常用于展示系统的分发版本、内核版本、硬件信息、桌面环境，以及一些个性化的设置，配合 ASCII 艺术风格的 logo，使得屏幕显得更加引人注目。

主要功能和特点：

系统信息展示：显示操作系统、内核版本、CPU、内存使用情况、包管理器等。
图形化的艺术字：能够显示与所用操作系统相对应的 ASCII 艺术 logo。
自定义选项：用户可以通过配置文件进行个性化设置，选择显示的信息、颜色等。
轻量级：非常轻量，启动速度快，不对系统性能造成影响。
支持多种平台：支持大部分 Linux 发行版、macOS 和其他 Unix-like 系统。

neofetch 安装

apt install -y neofetch  # 或者

dnf install -y neofetch

neofetch 输出

我这是一台RISC-V架构荔枝派4A
risc-v neofetch

neofetch 源码

https://github.com/dylanaraps/neofetch/blob/master/neofetch

查看源码后,发现是这部分获取的Host信息
逐个尝试后，发现荔枝派4A用的是 /sys/firmware/devicetree/base/model

get_model() {
    case $os in
        Linux)
            if [[ -d /system/app/ && -d /system/priv-app ]]; then
                model="$(getprop ro.product.brand) $(getprop ro.product.model)"

            elif [[ -f /sys/devices/virtual/dmi/id/board_vendor ||
                    -f /sys/devices/virtual/dmi/id/board_name ]]; then
                model=$(< /sys/devices/virtual/dmi/id/board_vendor)
                model+=" $(< /sys/devices/virtual/dmi/id/board_name)"

            elif [[ -f /sys/devices/virtual/dmi/id/product_name ||
                    -f /sys/devices/virtual/dmi/id/product_version ]]; then
                model=$(< /sys/devices/virtual/dmi/id/product_name)
                model+=" $(< /sys/devices/virtual/dmi/id/product_version)"

            elif [[ -f /sys/firmware/devicetree/base/model ]]; then
                model=$(< /sys/firmware/devicetree/base/model)

            elif [[ -f /tmp/sysinfo/model ]]; then
                model=$(< /tmp/sysinfo/model)
            fi
        ;;
        ...

修改Host描述

需要修改的文件位于 arch/riscv/boot/dts/thead/th1520-lpi4a-dsi0.dts

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2022-2023 Alibaba Group Holding Limited.
 */

#include "th1520-lpi4a.dtsi"

/ {
	model = "T-HEAD Light Lichee Pi 4A configuration for 8GB DDR board"; # 这行需要修改
	compatible = "thead,light-val", "thead,light-lpi4a", "thead,light";

	memory@0 {
		device_type = "memory";
		reg = <0x0 0x200000 0x1 0xffe00000>;
	};

	vcc1v8_lontium: vcc1v8-lontium {
		compatible = "regulator-fixed";
		enable-active-high;
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		gpio = <&gpio3_porta 17 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&vcc1v8_lontium_pwren>;
		regulator-name = "vcc1v8-lontium";
	};

	vcc3v3_edp: vcc3v3-edp {
		compatible = "regulator-fixed";
		enable-active-high;
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		gpio = <&gpio2_porta 18 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&vcc3v3_edp_pwren>;
		regulator-name = "vcc3v3-edp";
	};        
};

&cmamem {
	size = <0 0x20000000>; // 512MB on lpi4a (SOM)
	alloc-ranges = <0 0xd8000000 0 0x20000000>; // [0x0D800_0000 ~ 0x0F800_0000]
};

&i2c3 {
	clock-frequency = <400000>;
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_i2c3>;

	lt8911i2c: lt8911i2c@29{
		compatible = "i2c,lt8911";
		reg = <0x29>;
	};
};

&dsi0 {
    status = "okay";
};

&dhost_0 {
	panel0@0 {
		compatible = "i2c_dsi,lt8911";
		reg = <0>;
		lt8911,backlight-gpio = <&gpio2_porta 20 GPIO_ACTIVE_HIGH>;
		lt8911,irq-gpio = <&gpio3_porta 16 GPIO_ACTIVE_LOW>;
		lt8911,reset-gpio = <&gpio3_porta 15 GPIO_ACTIVE_LOW>;
		lt8911,rst-delay-ms = <10>;
		lt8911,edp-lane-cnt = <2>;
		lt8911,mipi-lane-cnt = <4>;
		lt8911,edp-depth = <8>; /* 6 or 8 */
		pinctrl-names = "default";
		pinctrl-0 = <&lt8911exb_gpios>;
		hsvcc-supply = <&vcc1v8_lontium>;
		vspn3v3-supply = <&vcc3v3_edp>;

		port {
			panel0_in: endpoint {
				remote-endpoint = <&dsi0_out>;
			};
		};
	};
};

&padctrl0_apsys { /* right-pinctrl */
	light-evb-padctrl0 {
		/*
		 * Pin Configuration Node:
		 * Format: <pin_id mux_node config>
		 */
		pinctrl_i2c3: i2c3grp {
			thead,pins = <
				FM_I2C3_SCL	LIGHT_PIN_FUNC_0	0x204
				FM_I2C3_SDA	LIGHT_PIN_FUNC_0	0x204
			>;
		};

		lt8911exb_gpios: lt8911exb-gpios {
			thead,pins = <
				FM_GPIO2_20	LIGHT_PIN_FUNC_0	0x208
				FM_GMAC0_RXD1	LIGHT_PIN_FUNC_3	0x0
				FM_GMAC0_RXD0	LIGHT_PIN_FUNC_3	0x208
			>;
		};

		vcc1v8_lontium_pwren: vcc1v8-lontium-pwren {
			thead,pins = <
				FM_GMAC0_RXD2	LIGHT_PIN_FUNC_3	0x208
			>;
		};

		vcc3v3_edp_pwren: vcc3v3-edp-pwren {
			thead,pins = <
				FM_GPIO2_18	LIGHT_PIN_FUNC_0	0x208
			>;
		};
		dsi_reset_gpio: dsi-reset-gpio {
			thead,pins = <
				FM_GPIO2_22	LIGHT_PIN_FUNC_0	0x0
			>;
                };
	};
};