{"id":51505,"date":"2024-12-03T14:05:48","date_gmt":"2024-12-03T06:05:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/51505\/"},"modified":"2024-12-03T14:05:48","modified_gmt":"2024-12-03T06:05:48","slug":"%e4%bc%98%e5%8c%96linux%e7%b3%bb%e7%bb%9f%e6%80%a7%e8%83%bd%e7%9a%84dts%e9%85%8d%e7%bd%ae%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/51505\/","title":{"rendered":"\u4f18\u5316Linux\u7cfb\u7edf\u6027\u80fd\u7684DTS\u914d\u7f6e\u6307\u5357"},"content":{"rendered":"

<\/b> <\/p>\n

\u4f18\u5316Linux\u7cfb\u7edf\u6027\u80fd\u7684DTS\u914d\u7f6e\u6307\u5357<\/h1>\n

\u5b66\u4e60\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0\u300a\u4f18\u5316Linux\u7cfb\u7edf\u6027\u80fd\u7684DTS\u914d\u7f6e\u6307\u5357\u300b<\/span>\u5c06\u4f1a\u4ecb\u7ecd\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60\u6587\u7ae0<\/span>\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n

\u6807\u9898\uff1a\u5982\u4f55\u5229\u7528Linux DTS\u4f18\u5316\u7cfb\u7edf\u6027\u80fd\uff1f<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8bbe\u5907\u6811\u6e90\uff08Device Tree Source\uff0cDTS\uff09\u88ab\u5e7f\u6cdb\u7528\u4e8e\u63cf\u8ff0\u786c\u4ef6\u8bbe\u5907\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u5916\u8bbe\u3001\u603b\u7ebf\u548c\u4e2d\u65ad\u7b49\u3002\u901a\u8fc7\u5bf9DTS\u7684\u4f18\u5316\uff0c\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u548c\u529f\u8017\u6548\u7387\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5229\u7528Linux DTS\u8fdb\u884c\u4f18\u5316\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001\u7406\u89e3DTS<\/p>\n

DTS\u662f\u4e00\u79cd\u63cf\u8ff0\u786c\u4ef6\u8bbe\u5907\u4fe1\u606f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u901a\u5e38\u4ee5.dts\u6216\u8005.dtsi\u4f5c\u4e3a\u6587\u4ef6\u6269\u5c55\u540d\u3002\u5b83\u63cf\u8ff0\u4e86\u786c\u4ef6\u8bbe\u5907\u7684\u7269\u7406\u8fde\u63a5\u548c\u5c5e\u6027\u4fe1\u606f\uff0c\u5305\u62ec\u8bbe\u5907\u7684\u540d\u79f0\u3001\u5730\u5740\u3001\u5bc4\u5b58\u5668\u914d\u7f6e\u7b49\u3002\u4f7f\u7528DTS\u7684\u597d\u5904\u662f\u53ef\u4ee5\u5c06\u786c\u4ef6\u63cf\u8ff0\u4e0e\u5185\u6838\u4ee3\u7801\u5206\u5f00\uff0c\u66f4\u5bb9\u6613\u7406\u89e3\u548c\u7ef4\u62a4\u3002<\/p>\n

\u4e8c\u3001\u4f18\u5316DTS\u4ee5\u63d0\u5347\u7cfb\u7edf\u6027\u80fd<\/p>\n

    \n
  1. \u5408\u5e76\u8bbe\u5907\u8282\u70b9\uff1a\u5c06\u591a\u4e2a\u76f8\u4f3c\u7684\u8bbe\u5907\u8282\u70b9\u5408\u5e76\u4e3a\u4e00\u4e2a\u8282\u70b9\uff0c\u53ef\u4ee5\u51cf\u5c11DTS\u7684\u5927\u5c0f\u548c\u89e3\u6790\u65f6\u95f4\uff0c\u63d0\u9ad8\u7cfb\u7edf\u542f\u52a8\u7684\u6548\u7387\u3002\u4f8b\u5982\uff0c\u5c06\u76f8\u540c\u578b\u53f7\u7684\u4f20\u611f\u5668\u5408\u5e76\u4e3a\u4e00\u4e2a\u8282\u70b9\u3002<\/li>\n<\/ol>\n

    \u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

    sensor@100 {\n    compatible = \"vendor,sensor-a\";\n    reg = <0x100>;\n    ...\n};\n\nsensor@200 {\n    compatible = \"vendor,sensor-a\";\n    reg = <0x200>;\n    ...\n};<\/pre>\n
    \u5408\u5e76\u540e\uff1a<\/p>\n
    sensor@100 {\n    compatible = \"vendor,sensor-a\";\n    reg = <0x100 0x200>;\n    ...\n};<\/pre>\n
      \n
    1. \u4f7f\u7528\u5b57\u7b26\u4e32\u5c5e\u6027\uff1a\u907f\u514d\u5728\u8bbe\u5907\u8282\u70b9\u4e2d\u4f7f\u7528\u5927\u91cf\u6570\u5b57\u5c5e\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u5c5e\u6027\u6765\u4ee3\u66ff\uff0c\u66f4\u6613\u8bfb\u4e14\u65b9\u4fbf\u7ef4\u62a4\u3002<\/li>\n<\/ol>\n
      \u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
      gpio-controller {\n    #gpio-cells = <2>;\n    gpio-controller,gpios = <&gpio1 18 GPIO_ACTIVE_LOW>,\n                            <&gpio2 13 GPIO_ACTIVE_HIGH>;\n};<\/pre>\n
      \u6539\u8fdb\u540e\uff1a<\/p>\n
      gpio-controller {\n    gpio-cells = <2>;\n    gpio-controller,pins = \"gpio1_18\", \"gpio2_13\";\n};<\/pre>\n
        \n
      1. \u907f\u514d\u91cd\u590d\u63cf\u8ff0\u786c\u4ef6\u4fe1\u606f\uff1a\u5728DTS\u4e2d\u5c3d\u91cf\u907f\u514d\u5728\u4e0d\u540c\u8282\u70b9\u4e2d\u91cd\u590d\u63cf\u8ff0\u76f8\u540c\u7684\u786c\u4ef6\u4fe1\u606f\uff0c\u53ef\u4ee5\u5c06\u5171\u4eab\u7684\u4fe1\u606f\u63d0\u53d6\u5230\u4e00\u4e2a\u516c\u5171\u8282\u70b9\u4e2d\u3002<\/li>\n<\/ol>\n
        \u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
        spi@1234 {\n    compatible = \"vendor,spi\";\n    ...\n};\n\ni2c@5678 {\n    compatible = \"vendor,i2c\";\n    ...\n};\n\ncs-gpio {\n    compatible = \"vendor,gpio\";\n    gpio-controller;\n    #gpio-cells = <2>;\n    ...\n};<\/pre>\n
        \u6539\u8fdb\u540e\uff1a<\/p>\n
        gpio-controller {\n    gpio-cells = <2>;\n    ...\n};\n\nspi@1234 {\n    compatible = \"vendor,spi\";\n    ...\n    cs-gpios = <&gpio-controller 1 2>;\n};\n\ni2c@5678 {\n    compatible = \"vendor,i2c\";\n    ...\n    sda-gpios = <&gpio-controller 3>;\n    scl-gpios = <&gpio-controller 4>;\n};<\/pre>\n
          \n
        1. \u4f7f\u7528include\u8bed\u53e5\uff1a\u5c06\u4e00\u4e9b\u516c\u5171\u7684\u786c\u4ef6\u63cf\u8ff0\u4fe1\u606f\u5b58\u50a8\u5728\u5355\u72ec\u7684\u6587\u4ef6\u4e2d\uff0c\u5e76\u901a\u8fc7include\u8bed\u53e5\u5f15\u5165\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u7ef4\u62a4\u6027\u3002<\/li>\n<\/ol>\n
          \u793a\u4f8b\u4ee3\u7801\uff1a
          common.dtsi\uff1a<\/p>\n
          \/include\/ \"common.dtsi\"\n\nmcu: microcontroller {\n    compatible = \"vendor,mcu\";\n    ...\n};<\/pre>\n
          board.dts\uff1a<\/p>\n
          #include \"common.dtsi\"\n\nboard: mainboard {\n    compatible = \"vendor,board\";\n    ...\n};<\/pre>\n
            \n
          1. \u826f\u597d\u6ce8\u91ca\uff1a\u5728DTS\u4e2d\u6dfb\u52a0\u8be6\u7ec6\u548c\u6e05\u6670\u7684\u6ce8\u91ca\uff0c\u65b9\u4fbf\u9605\u8bfb\u548c\u7406\u89e3\u786c\u4ef6\u4fe1\u606f\uff0c\u907f\u514d\u6df7\u6dc6\u548c\u9519\u8bef\u3002<\/li>\n<\/ol>\n
            \u901a\u8fc7\u4ee5\u4e0a\u4f18\u5316\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u548c\u964d\u4f4e\u529f\u8017\u6d88\u8017\uff0c\u540c\u65f6\u4f7f\u4ee3\u7801\u66f4\u6613\u7ef4\u62a4\u548c\u6269\u5c55\u3002<\/p>\n
            \u603b\u7ed3<\/p>\n
            \u901a\u8fc7\u5bf9Linux DTS\u8fdb\u884c\u4f18\u5316\uff0c\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u548c\u964d\u4f4e\u529f\u8017\u6d88\u8017\u3002\u4f18\u5316\u7684\u5173\u952e\u662f\u5408\u5e76\u8bbe\u5907\u8282\u70b9\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u5c5e\u6027\u3001\u907f\u514d\u91cd\u590d\u63cf\u8ff0\u786c\u4ef6\u4fe1\u606f\u3001\u4f7f\u7528include\u8bed\u53e5\u548c\u6dfb\u52a0\u826f\u597d\u6ce8\u91ca\u3002\u8fd9\u4e9b\u4f18\u5316\u65b9\u6cd5\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u7cfb\u7edf\u6548\u7387\uff0c\u4e5f\u589e\u52a0\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u6709\u5229\u4e8e\u7cfb\u7edf\u7684\u7a33\u5b9a\u8fd0\u884c\u548c\u5f00\u53d1\u7ef4\u62a4\u3002<\/p>\n
            \u5e0c\u671b\u672c\u6587\u53ef\u4ee5\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u5e76\u5229\u7528Linux DTS\u8fdb\u884c\u7cfb\u7edf\u6027\u80fd\u4f18\u5316\uff0c\u63d0\u5347\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n
            \u4eca\u5929\u5173\u4e8e\u300a\u4f18\u5316Linux\u7cfb\u7edf\u6027\u80fd\u7684DTS\u914d\u7f6e\u6307\u5357\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n
            \n
            <\/dt>\n
            \n   \u5411\u914d\u7f6e\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5bc6\u94a5\u4f7f\u7528 Viper\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
            \u4f18\u5316Linux\u7cfb\u7edf\u6027\u80fd\u7684DTS\u914d\u7f6e\u6307\u5357 \u5b66\u4e60\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0\u300a\u4f18\u5316Linux\u7cfb\u7edf\u6027\u80fd\u7684DTS\u914d\u7f6e\u6307\u5357\u300b\u5c06\u4f1a\u4ecb\u7ecd\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60\u6587\u7ae0\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01 \u6807\u9898\uff1a\u5982\u4f55\u5229\u7528Linux DTS\u4f18\u5316\u7cfb\u7edf\u6027\u80fd\uff1f \u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u8bbe\u5907\u6811\u6e90\uff08Device Tree Source\uff0cDTS\uff09\u88ab\u5e7f\u6cdb\u7528\u4e8e\u63cf\u8ff0\u786c\u4ef6\u8bbe\u5907\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u5916\u8bbe\u3001\u603b\u7ebf\u548c\u4e2d\u65ad\u7b49\u3002\u901a\u8fc7\u5bf9DTS\u7684\u4f18\u5316\uff0c\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u548c\u529f\u8017\u6548\u7387\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5229\u7528Linux DTS\u8fdb\u884c\u4f18\u5316\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001\u7406\u89e3DTS DTS\u662f\u4e00\u79cd\u63cf\u8ff0\u786c\u4ef6\u8bbe\u5907\u4fe1\u606f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u901a\u5e38\u4ee5.dts\u6216\u8005.dtsi\u4f5c\u4e3a\u6587\u4ef6\u6269\u5c55\u540d\u3002\u5b83\u63cf\u8ff0\u4e86\u786c\u4ef6\u8bbe\u5907\u7684\u7269\u7406\u8fde\u63a5\u548c\u5c5e\u6027\u4fe1\u606f\uff0c\u5305\u62ec\u8bbe\u5907\u7684\u540d\u79f0\u3001\u5730\u5740\u3001\u5bc4\u5b58\u5668\u914d\u7f6e\u7b49\u3002\u4f7f\u7528DTS\u7684\u597d\u5904\u662f\u53ef\u4ee5\u5c06\u786c\u4ef6\u63cf\u8ff0\u4e0e\u5185\u6838\u4ee3\u7801\u5206\u5f00\uff0c\u66f4\u5bb9\u6613\u7406\u89e3\u548c\u7ef4\u62a4\u3002 \u4e8c\u3001\u4f18\u5316DTS\u4ee5\u63d0\u5347\u7cfb\u7edf\u6027\u80fd \u5408\u5e76\u8bbe\u5907\u8282\u70b9\uff1a\u5c06\u591a\u4e2a\u76f8\u4f3c\u7684\u8bbe\u5907\u8282\u70b9\u5408\u5e76\u4e3a\u4e00\u4e2a\u8282\u70b9\uff0c\u53ef\u4ee5\u51cf\u5c11DTS\u7684\u5927\u5c0f\u548c\u89e3\u6790\u65f6\u95f4\uff0c\u63d0\u9ad8\u7cfb\u7edf\u542f\u52a8\u7684\u6548\u7387\u3002\u4f8b\u5982\uff0c\u5c06\u76f8\u540c\u578b\u53f7\u7684\u4f20\u611f\u5668\u5408\u5e76\u4e3a\u4e00\u4e2a\u8282\u70b9\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a sensor@100 { compatible = “vendor,sensor-a”; reg = <0x100>; … }; sensor@200 { compatible = “vendor,sensor-a”; reg = <0x200>; … }; \u5408\u5e76\u540e\uff1a sensor@100 { compatible = “vendor,sensor-a”; reg = <0x100 0x200>; … }; \u4f7f\u7528\u5b57\u7b26\u4e32\u5c5e\u6027\uff1a\u907f\u514d\u5728\u8bbe\u5907\u8282\u70b9\u4e2d\u4f7f\u7528\u5927\u91cf\u6570\u5b57\u5c5e\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u5c5e\u6027\u6765\u4ee3\u66ff\uff0c\u66f4\u6613\u8bfb\u4e14\u65b9\u4fbf\u7ef4\u62a4\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a gpio-controller { #gpio-cells = <2>; gpio-controller,gpios = <&gpio1 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-51505","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=51505"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51505\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=51505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=51505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=51505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}