SDK构建的buildroot无法成功加载ilitft的ili9341

• keyspan

  Posts: 3

  Joined: 2025-09-18 14:39

  2025-09-18 14:52

  我使用luckfox pico pro max尝试构建一个支持ili9341屏幕的linux，使用的guthub最新的SDK源码。
  设备树修改的内容：
  / {
  model = "Luckfox Pico Pro Max";
  compatible = "rockchip,rv1103g-38x38-ipc-v10", "rockchip,rv1106g3";
  backlight:backlight{
  compatible = "gpio-backlight";
  pinctrl-names = "default";
  pinctrl-0 = <&gpio1_pc7>;
  gpios = <&gpio1 RK_PC7 GPIO_ACTIVE_HIGH>;
  default-on;
  };
  /*LCD_DC*/
  gpio2pb1:gpio2pb1 {
  compatible = "regulator-fixed";
  pinctrl-names = "default";
  pinctrl-0 = <&gpio2_pb1>;
  regulator-name = "gpio2_pb1";
  regulator-always-on;
  };
  
  /*LCD_RES*/
  gpio1pc6:gpio1pc6 {
  compatible = "regulator-fixed";
  pinctrl-names = "default";
  pinctrl-0 = <&gpio1_pc6>;
  regulator-name = "gpio1_pc6";
  regulator-always-on;
  };
  };
  /**********GPIO**********/
  &pinctrl {
  
  /*LCD_BL*/
  gpio1-pc7 {
  gpio1_pc7:gpio1-pc7 {
  rockchip,pins = <1 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
  };
  };
  /*LCD_DC*/
  gpio2-pb1 {
  gpio2_pb1:gpio2-pb1 {
  rockchip,pins = <2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
  };
  };
  
  /*LCD_RES*/
  gpio1-pc6 {
  gpio1_pc6:gpio1-pc6 {
  rockchip,pins = <1 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
  };
  };
  };
  /**********SPI**********/
  &spi0 {
  status = "okay";
  pinctrl-names = "default";
  // pinctrl-0 = <&spi0m0_pins>;
  // cs-gpios = <&gpio1 RK_PC0 1>;
  pinctrl-0 = <&spi0m0_clk &spi0m0_mosi &spi0m0_cs0>;
  spidev@0 {
  status = "disabled";
  // spi-max-frequency = <50000000>;
  };
  fbtft@0 {
  status = "okay";
  compatible = "ilitek,ili9341";
  reg = <0>;
  pinctrl-names = "default";
  spi-max-frequency = <20000000>;
  fps = <30>;
  width = <240>;
  height = <320>;
  buswidth = <8>;
  debug = <0x7>;
  //led-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>; //BL
  dc = <&gpio2 RK_PB1 GPIO_ACTIVE_HIGH>; //DC
  reset = <&gpio1 RK_PC6 GPIO_ACTIVE_LOW>; //RES
  backlight = &backlight;
  };
  };
  
  进入系统后查不到fbtft相关的日志：
  [root@luckfox ]# ls dev/fb*
  dev/fb0
  [root@luckfox ]# dmesg | grep -E "(fb|display|lcd|spi|ili9341)" | head -10
  [ 1443.245272] rockchip-sfc ffac0000.spi: sfc xfer_poll len=1
  [ 1443.245282] rockchip-sfc ffac0000.spi: sfc addr.nbytes=1(x1) dummy.nbytes=0(x0)
  [ 1443.245290] rockchip-sfc ffac0000.spi: sfc ctrl=2 cmd=c00f addr=c0 len=1 cs=0
  [ 1443.245297] rockchip-sfc ffac0000.spi: sfc xfer_poll len=1
  [ 1443.245307] rockchip-sfc ffac0000.spi: sfc addr.nbytes=1(x1) dummy.nbytes=0(x0)
  [ 1443.245314] rockchip-sfc ffac0000.spi: sfc ctrl=2 cmd=c00f addr=c0 len=1 cs=0
  [ 1443.245320] rockchip-sfc ffac0000.spi: sfc xfer_poll len=1
  [ 1443.245332] rockchip-sfc ffac0000.spi: sfc addr.nbytes=1(x1) dummy.nbytes=0(x0)
  [ 1443.245339] rockchip-sfc ffac0000.spi: sfc ctrl=2 cmd=c00f addr=c0 len=1 cs=0
  [ 1443.245346] rockchip-sfc ffac0000.spi: sfc xfer_poll len=1
  [root@luckfox ]# dmesg | grep -i fbtft
  [root@luckfox ]# dmesg | grep -i ili9341
  [root@luckfox ]# dmesg | grep -i spi
  [ 1461.245357] rockchip-sfc ffac0000.spi: sfc xfer_poll len=1
  [ 1461.245367] rockchip-sfc ffac0000.spi: sfc addr.nbytes=1(x1) dummy.nbytes=0(x0)
  [ 1461.245375] rockchip-sfc ffac0000.spi: sfc ctrl=2 cmd=c00f addr=c0 len=1 cs=0
  [ 1461.245381] rockchip-sfc ffac0000.spi: sfc xfer_poll len=1
  [ 1461.245391] rockchip-sfc ffac0000.spi: sfc addr.nbytes=1(x1) dummy.nbytes=0(x0)
  [ 1461.245399] rockchip-sfc ffac0000.spi: sfc ctrl=2 cmd=c00f addr=c0 len=1 cs=0
  [ 1461.245405] rockchip-sfc ffac0000.spi: sfc xfer_poll len=1
  [ 1461.245415] rockchip-sfc ffac0000.spi: sfc addr.nbytes=1(x1) dummy.nbytes=0(x0)
  [ 1461.245424] rockchip-sfc ffac0000.spi: sfc ctrl=2 cmd=c00f addr=c0 len=1 cs=0
  [ 1461.245430] rockchip-sfc ffac0000.spi: sfc xfer_poll len=1

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