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    YterAALV 7

    @YterAA

    已帮助超过1000位开发者学会插入电源

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    YterAA 发布的最佳帖子

    • Tina Linux 存储介质切换:eMMC,SPI NAND,SPI NOR,SD Card,SD NAND

      存储切换方法

      SDK切换存储介质需要修改board.dts、sys_config.fex、内核配置、TINA系统配置。另外,在spinor 存储介质下,通过 u-boot-sun8iw21p1.bin 进行烧录,u-boot-spinor-sun8iw21p1.bin 启动,使用sys_partition_nor.fex作为分区表。在非spinor介质(spinand、emmc、sdnand),通过u-boot-sun8iw21p1.bin进行烧录和启动,使用sys_partition.fex作为分区表。下文将介绍spinor切换spinand、spinand切换spinor、spinor切换emmc、spinor切换sdnand四种切换方式。

      • sys_config.fex中只要关注storage_type选项,这个选项决定使用哪一种存储介质,配置后在pack过程,会自动打包对应介质的二进制文件。
        [target]
        storage_type = xxx
        其中storage_type | 0:nand | 1:sd | 2:emmc | 3:spinor  | 4:emmc3 | 5:spinand  | 6:sd1 |
      

      spinor切换spinand

      sys_config.fex修改

      [target]
      - storage_type = 3
      + storage_type = 5
      

      board.dts/uboot-board.dts修改

      &spi0 {
      -	status = "disabled";
      +	status = "okay";
      	spi-nand@0 {
      -		status="disabled";
      +		status="okay";
      	};
      };
      

      uboot编译

      编译u-boot-sun8iw21p1.bin,spinand使用u-boot-sun8iw21p1.bin进行烧录、启动。
      cboot切换到uboot目录,编辑configs/sun8iw21p1_defconfig
      CONFIG_SUNXI_UBIFS=y   //SDK发布默认已选上
      执行mboot               //编译
      确保device/config/chips/vxxx/bin/u-boot-sun8iw21p1.bin已更新
      

      内核配置

      make kernel_menuconfig 层层选中
      内核驱动配置
      Device Driver --->
         Memory Technology Device (MTD) support --->
            sunxi-nand  --->
                <*> AWNAND CHOICE (Allwinner MTD SPINAND Device Support)  --->
            -*-   Enable UBI - Unsorted block images  --->
               [*]   Read-only block devices on top of UBI volumes
               
      内核文件系统配置
      File systems --->
         [*] Miscellaneous filesystems  --->
            <*>   UBIFS file system support
      

      TINA环境配置

      make menuconfig 层层选中
      Target Images  --->
         Boot (SD Card) Kernel format (boot.img)  ---> //默认选中
         [ ] For storage less than 32M, enable this when using ota  //取消勾选
         
      Global build settings  --->
         [*] Strip unnecessary functions from libraries  //取消勾选
         
      Utilities  --->
         <*> mtd-utils --->
            <*>   mtd-utils-mkfs.ubifs
      

      spinand切换spinor

      sys_config.fex修改

      [target]
      - storage_type = 5
      + storage_type = 3
      

      board.dts/uboot-board.dts修改

      &spi0 {
      -	status = "okay";
      +	status = "disabled";
      	spi-nand@0 {
      -		status="okay";
      +		status="disabled";
      	};
      };
      
      

      内核配置

      make kernel_menuconfig 层层选中
      内核驱动配置
      Device Driver --->
         Memory Technology Device (MTD) support --->
            sunxi-nand  --->  //取消勾选
         Self-contained MTD device drivers  --->
            <*> Support most SPI Flash chips (AT26DF, M25P, W25X, ...)  //确认已选中
         <*>   SPI-NOR device support  --->    
      内核文件系统配置
      File systems --->
         [*] Miscellaneous filesystems  --->
            <*>   Journalling Flash File System v2 (JFFS2) support
      

      TINA环境配置

      make menuconfig 层层选中
      Target Images  --->
         [*] For storage less than 32M, enable this when using ota  //选中
         
      Global build settings  --->
         [*] Strip unnecessary functions from libraries  //选中
         
      Utilities  --->
         <*> mtd-utils
            <*>   mtd-utils-mkfs.jffs2  //选中
      

      spinor切换emmc

      sys_config.fex修改

      [target]
      - storage_type = 3
      + storage_type = 2
      

      内核配置

      make kernel_menuconfig 层层选中
      [*] Enable the block layer  --->
         [*]   Support for large (2TB+) block devices and files
         [*]   Block layer SG support v4
      Device Drivers  --->
         < > Memory Technology Device (MTD) support  --->  //取消勾选
         [*] Block devices  --->  //确认勾选
      File systems  --->
         <*> The Extended 4 (ext4) filesystem
      

      TINA环境配置

      make menuconfig 层层选中
      Target Images  --->
         Boot (SD Card) Kernel format (boot.img)  ---> //默认选中
         [ ] For storage less than 32M, enable this when using ota  //取消勾选
         
      Global build settings  --->
         [ ] Strip unnecessary functions from libraries  //取消勾选
         
      Utilities  --->
         Filesystem  --->
            <*> e2fsprogs //选中
      

      spinor切换sdnand

      sys_config.fex修改

      [target]
      - storage_type = 3
      + storage_type = 1
      

      board.dts修改

      &sdc2 {
      	non-removable;
      	bus-width = <8>;
      	mmc-ddr-1_8v;
      	mmc-hs200-1_8v;
      	mmc-hs400-1_8v;
      	no-sdio;
      -	no-sd;
      +	//no-sd;
      	ctl-spec-caps = <0x308>;
      	cap-mmc-highspeed;
      	sunxi-power-save-mode;
      	sunxi-dis-signal-vol-sw;
      	max-frequency = <100000000>;
      	vmmc-supply = <&reg_dcdc1>;
      	/*emmc io vol 3.3v*/
      	vqmmc-supply = <&reg_bldo1>;
      	/*emmc io vol 1.8v*/
      	/*vqmmc-supply = <&reg_eldo1>;*/
      	status = "disabled";
      };
      

      内核配置

      make kernel_menuconfig 层层选中
      [*] Enable the block layer  --->
         [*]   Support for large (2TB+) block devices and files
         [*]   Block layer SG support v4
      Device Drivers  --->
         < > Memory Technology Device (MTD) support  --->  //取消勾选
         [*] Block devices  --->  //确认勾选
      File systems  --->
         <*> The Extended 4 (ext4) filesystem
      

      TINA环境配置

      make menuconfig 层层选中
      Target Images  --->
         Boot (SD Card) Kernel format (boot.img)  ---> //默认选中
         [ ] For storage less than 32M, enable this when using ota  //取消勾选
         
      Global build settings  --->
         [ ] Strip unnecessary functions from libraries  //取消勾选
         
      Utilities  --->
         Filesystem  --->
            <*> e2fsprogs //选中
      
      发布在 Linux
      Y
      YterAA
    • 全志芯片Tina Linux 修改 UART 引脚、UART端口

      场景一:同样使用UART0,需要从PF2、PF4改到PE2、PE4

      1. 修改sys_config.fex(BOOT0与Uboot的串口)

      sys_config.fex 的路径是 device/config/chips/t113/configs/evb1/sys_config.fex 中的 uart_debug_port

      修改前:

      [uart_para]
      uart_debug_port = 0
      uart_debug_tx   = port:PF02<3><1><default><default>
      uart_debug_rx   = port:PF04<3><1><default><default>
      

      修改后

      [uart_para]
      uart_debug_port = 0
      uart_debug_tx   = port:PE02<6><1><default><default>
      uart_debug_rx   = port:PE03<6><1><default><default>
      

      其中<3>改为<6> 是查阅数据手册中 PE2、PE3 的UART0是 Function6 得知的
      a858d4ee-716b-4fd6-ba8d-d94265331d66-图片1.png

      port:PE02    <6><1><default><default>
              ^     ^
             PE2脚  引脚功能6(查阅datasheet得知)
      
      1. 修改设备树(Linux使用的串口输出)

      路径:device/config/chips/t113/configs/evb1/board.dts

      修改前

      uart0_pins_a: uart0_pins@0 {  /* For EVB1 board */
      	pins = "PF2", "PF4";
      	function = "uart0";
      	drive-strength = <10>;
      	allwinner,muxsel = <3>;
      	bias-pull-up;
      };
      
      uart0_pins_b: uart0_pins@1 {  /* For EVB1 board */
      	pins = "PF2", "PF4";
      	function = "gpio_in";
      };
      

      修改后

      uart0_pins_a: uart0_pins@0 {  /* For EVB1 board */
      	pins = "PE2", "PE3";
      	function = "uart0";
      	drive-strength = <10>;
      	allwinner,muxsel = <6>;
      	bias-pull-up;
      };
      
      uart0_pins_b: uart0_pins@1 {  /* For EVB1 board */
      	pins = "PE2", "PE3";
      	function = "gpio_in";
      };
      
      发布在 Linux
      Y
      YterAA
    • 回复: 全志芯片Tina Linux 修改 UART 引脚、UART端口

      场景二:使用UART3,需要从UART0改为UART3(PB6,PB7)

      1. 修改sys_config.fex(BOOT0与Uboot的串口)

      sys_config.fex 的路径是 device/config/chips/t113/configs/evb1/sys_config.fex 中的 uart_debug_port

      修改前:

      [uart_para]
      uart_debug_port = 0
      uart_debug_tx   = port:PF02<3><1><default><default>
      uart_debug_rx   = port:PF04<3><1><default><default>
      

      修改后

      [uart_para]
      uart_debug_port = 3
      uart_debug_tx   = port:PB06<7><1><default><default>
      uart_debug_rx   = port:PB07<7><1><default><default>
      
      1. 修改设备树(Linux使用的串口输出)

      路径:device/config/chips/t113/configs/evb1/board.dts

      修改前

      uart3_pins_a: uart3_pins@0 {
      	pins = "PC6", "PC7";
      	function = "uart0";
      	drive-strength = <10>;
      	allwinner,muxsel = <4>;
      	bias-pull-up;
      };
      
      uart3_pins_b: uart3_pins@1 {
      	pins = "PC6", "PC7";
      	function = "gpio_in";
      };
      
      &uart0 {
      	pinctrl-names = "default", "sleep";
      	pinctrl-0 = <&uart0_pins_a>;
      	pinctrl-1 = <&uart0_pins_b>; 
      	status = "okay"; 
      };
      
      &uart3 {
      	pinctrl-names = "default", "sleep";
      	pinctrl-0 = <&uart3_pins_a>;
      	pinctrl-1 = <&uart3_pins_b>;
      	status = "disabled"; 
      };
      

      修改后

      uart3_pins_a: uart3_pins@0 {
      	pins = "PB6", "PB7";
      	function = "uart0";
      	drive-strength = <10>;
      	allwinner,muxsel = <7>;
      	bias-pull-up;
      };
      
      uart3_pins_b: uart3_pins@1 {
      	pins = "PB6", "PB7";
      	function = "gpio_in";
      };
      
      &uart0 {
      	pinctrl-names = "default", "sleep";
      	pinctrl-0 = <&uart0_pins_a>;
      	pinctrl-1 = <&uart0_pins_b>; 
      	status = "disabled";                               # 关闭UART0
      };
      
      &uart3 {
      	pinctrl-names = "default", "sleep";
      	pinctrl-0 = <&uart3_pins_a>;
      	pinctrl-1 = <&uart3_pins_b>;
      	status = "okay";                                   # 开启UART3
      };
      
      1. 修改UBOOT CONSOLE INDEX

      路径:brandy/brandy-2.0/u-boot-2018/configs/sun8iw20p1_defconfig
      增加下列内容

      CONFIG_SPECIFY_CONSOLE_INDEX=y
      CONFIG_CONS_INDEX=4                            # UART 3+1 = 4 
      
      1. 修改启动bootargs

      路径:device/config/chips/t113/configs/evb1/env.cfg

      修改前

      earlyprintk=sunxi-uart,0x02500000
      initcall_debug=0
      console=ttyS0,115200
      

      修改后
      earlyprintk=sunxi-uart,0x02500000 需要修改为 UART3 的地址,查阅手册可知为 0x02500C00
      12849b33-3786-417e-b2fe-7736c04d4b38-image.png

      earlyprintk=sunxi-uart,0x02500C00
      initcall_debug=0
      console=ttyS3,115200
      

      注意 ARM 平台还需要设置Kernel,如下:

      make kernel_menuconfig 找到 Kernel low-level debugging functions,修改寄存器地址

      79bf0af2-3b08-48fb-810d-fc2b492209d0-image.png

      RISC-V 不需要此操作

      发布在 Linux
      Y
      YterAA
    • 回复: Tina Linux 存储介质切换:eMMC,SPI NAND,SPI NOR,SD Card,SD NAND

      Tina 3.5 一般支持nor, nand, mmc 三种介质。

      更具体的,nand分为并口nand和spinand,mmc分emmc和sd卡

      主要需要区分的是nor和其他介质,因为需要打包的部分有所不同。

      即,emmc和nand,sd卡一般可共用一份固件,而nor则需使用另一份固件

      sys_config配置

      在sys_config中有一个配置项,storage_type,取值及含义如下

      ;----------------------------------------------------------------------------------
      ; storage_type 0:nand 1:sd 2:emmc 3:spinor 4:emmc3 5:spinand 6:sd1
      ;----------------------------------------------------------------------------------
      [target]
      storage_type = xxx
      

      对于nor的方案,必须配置为

       storage_type = 3
      

      对于其他介质,storage_type则不能配置为3

      spinand切换为spinor

      sys_config 设置介质为nor

      [target]
      storage_type = 3
      

      配置所用nor的大小

      [norflash]
      size		= 16   
      

      内核配置

       make kernel_menuconfig --->
      	Device Drivers --->
                      < >Block devices  (取消选中)
      	Device Drivers --->
      		<*>Memory Technology Device (MTD) support
                              <*>OpenFirmware partitioning information support
      			<*>SUNXI partitioning support
             <*>   Caching block device access to MTD devices
      			<*>   SPI-NOR device support  (对于linux4.9,先选这个,下面的选项才出现)
      			Self-contained MTD device drivers  --->
      				 <*> Support most SPI Flash chips (AT26DF, M25P, W25X, ...)
        File systems  --->
          < > The Extended 4 (ext4) filesystem(取消选中)
        File systems  --->
          [*] Miscellaneous filesystems  ---> 
           <*>   Journalling Flash File System v2 (JFFS2) support(选中)
        [*] Enable the block layer  --->
          [ ]   Support for large (2TB+) block devices and files(取消选中)
      

      menuconfig配置

      make menuconfig --->
             Utilities  --->
                      <*> mtd-utils (选择) --->
                              <*> mtd-utils-mkfs.jffs2
      make menuconfig --->
             Utilities  --->
                      Filesystem  --->
                              < > e2fsprogs(取消选择)
      

      spinor切换为spinand

      sys_config 设置介质为spinand

      [target]
      storage_type = 5
      

      内核配置

       make kernel_menuconfig --->
            Device Drivers --->
                       [*]Block devices --->
                               <*>   sunxi nand flash driver
            Device Drivers --->
      		< >Memory Technology Device (MTD) support(取消选择)
             [*] Enable the block layer  --->
                      [*]   Support for large (2TB+) block devices and files 
            File systems  --->
                     <*> The Extended 4 (ext4) filesystem
      

      menuconfig 配置

      make menuconfig --->
             Utilities  --->
                      < > mtd-utils (取消选择)
                      Filesystem  --->
                              <*> e2fsprogs
      

      分区表配置
      注意点

      对于nand,rootfs_data分区,使用ext4格式。分配太小的话可能会创建失败。

      FAQ

      使用mkfs.ext4等工具的时候出现

      /usr/sbin/fsck.ext4 -y /dev/by-name/rootfs_data
      Error loading shared library /home/wuguanling/workspace/project/v316-sdv-tina/out/v316-sdv/staging_dir/target/rootfs/lib/libc.so: No such file or directory (needed by /usr/lib/libext2fs.so.2)
      

      关闭以下选项:

      make menuconfig
         | --- Global build settings
      		| --- []strip unnecessary functions for libraries  
      
      发布在 Linux
      Y
      YterAA
    • 回复: 【硬核干货】V853 Sample MPP软件包,MPP 摄像头测试包

      在这之前,请按照 https://v853.docs.aw-ol.com/npu/npu_runtime/ 教程 安装 NPU 运行时!!

      下载解压后放置到 tina5.0/openwrt/package/thirdparty 文件夹内。
      make menuconfig 后可以在 Demo for v853 board 找到

      Demo for v853 board  ---> 
           <*> sample_mpp..................... sample_mpp binary for v853 eval
      

      ca274624-343c-4735-8830-ce362fbe63fd-image.png

      发布在 V Series
      Y
      YterAA
    • 回复: Tina linux 如何更改system init

      busybox init 需要配置一些选项和 busybox-int-base-files这些东西

      主要做这些修改

      -CONFIG_SYSTEM_INIT_PROCD=y
      -# CONFIG_SYSTEM_INIT_BUSYBOX is not set
      +# CONFIG_SYSTEM_INIT_PROCD is not set
      +CONFIG_SYSTEM_INIT_BUSYBOX=y
      -CONFIG_PACKAGE_base-files=y
      -# CONFIG_BUSYBOX_CONFIG_FEATURE_CALL_TELINIT is not set
      -# CONFIG_BUSYBOX_CONFIG_INIT is not set
      -# CONFIG_BUSYBOX_CONFIG_LINUXRC is not set
      +CONFIG_BUSYBOX_CONFIG_INIT=y
      +CONFIG_BUSYBOX_CONFIG_LINUXRC=y
      +# CONFIG_BUSYBOX_CONFIG_FEATURE_USE_INITTAB is not set
      +CONFIG_BUSYBOX_CONFIG_FEATURE_INIT_SCTTY=y
      +CONFIG_BUSYBOX_CONFIG_FEATURE_INIT_SYSLOG=y
      +CONFIG_BUSYBOX_CONFIG_FEATURE_INIT_QUIET=y
      +CONFIG_BUSYBOX_CONFIG_FEATURE_INIT_COREDUMPS=y
      +CONFIG_BUSYBOX_CONFIG_INIT_TERMINAL_TYPE=""
      +# CONFIG_BUSYBOX_CONFIG_FEATURE_INIT_MODIFY_CMDLINE is not set
      -CONFIG_BUSYBOX_CONFIG_LOGGER=y
      +# CONFIG_BUSYBOX_CONFIG_LOGGER is not set
      +CONFIG_PACKAGE_busybox-init-base-files=y
      +CONFIG_BUSYBOX_INIT_BASE_FILES_OPTIONS=y
      +CONFIG_BUSYBOX_INIT_BASE_FILES_PATH="busybox-init-base-files"
      +# CONFIG_BUSYBOX_INIT_BASE_FILES_RC_LOG is not set
      +# CONFIG_BUSYBOX_INIT_BASE_FILES_RC_LOAD_SCRIPT is not set
      +# CONFIG_BUSYBOX_INIT_BASE_FILES_RC_MODULES is not set
      -CONFIG_PACKAGE_procd=y
      -
      -#
      -# Configuration
      -#
      -# CONFIG_PROCD_SHOW_BOOT is not set
      -# CONFIG_PROCD_ZRAM_TMPFS is not set
      -# end of Configuration
      -
      +# CONFIG_PACKAGE_procd is not set
      
      发布在 MR Series
      Y
      YterAA
    • Tina System Init 流程分析

      init 进程是内核启动的第一个用户进程,它根据配置文件决定启动那些程序,比如执行某些脚本、启动 shell、运行用户指定的程序等。init 进程是后续所有进程的发起者,比如init进程启动 /bin/sh 程序后,才能在控制台输入各种命令。

      init进程的执行程序通常是在/sbin/init,上面讲述的 init 进程的作用只不过是 /sbin/init 这个程序的功能。我们完全可以编写自己的 /sbin/init 程序,或者传入命令行参数“init=xxxx”指定某个程序作为init进程运行。

      tina系统中目前支持两种init程序:procd init 和 busybox init。下面我们来简单分析下kernel是如何调用第一个用户进程。

      18b9c8f3-50d3-4a71-8527-5af4d091f410-image.png

      如上图所示,内核启动的第一个c语言入口函数为 start_kernel(), 在函数中:会设置与体系结构相关的环境变量,初始化控制台,以及挂载根文件系统,最后启动 init 进程。

      其中的 run_init_process 函数使用它的参数所指定的程序来创建第一个用户进程。

      (1)如果 ramdisk_execute_command 变量指定了要运行的程序,则启动它。
      ramdisk_execute_command 的取值分三种情况,
      1)如果命令行参数指定了“rdinit=xxx”,则ramdisk_execute_command等于这个参数指定的程序
      2)否则,如果/init程序存在,ramdisk_execute_command就等于“/init”。
      3)否则,ramdisk__execute_command为空
      (2)如果execute_command变量指定了要运行的程序,启动它。
      如果命令行参数指定了"init=...",则execute_command等于这个参数指定的程序,否则为空
      (3)如果 ramdisk_execute_command 和 execute_command 参数都没有指定,则依次执行 ”/sbin/init、/etc/init、/bin/init、/bin/sh“

      在tina系统中,我们可以通过去修改env.cfg文件 ”rdinit=xxx“ 或 ”init=xxx“ 参数来指定启动的第一个用户进程

      example:
      tina/target/allwinner/azalea-m2ultra/configs下,修改env-3.10.cfg(如果没有这个文件,则到tina/target/allwinner/generic/configs/拷贝一份env-3.10.cfg到tina/target/allwinner/azalea-m2ultra/configs/),修改文件中的”init=‘指定的应用进程’ “即可

      发布在 Linux
      Y
      YterAA
    • 回复: 【V853开发板试用】使用屏幕输出命令行
      make kernel_menuconfig
      
      Device Drivers  --->
          Character devices  --->
              [*]   Virtual terminal
          Graphics support  --->
              Frame buffer Devices  ---> 
                  Video support for sunxi  --->
                       [*] Framebuffer Console Support(sunxi)
              Console display driver support  --->
      Library routines  ---> 
          [*] Select compiled-in fonts
      
      发布在 V Series
      Y
      YterAA
    • 解决 D1-H & D1s 驱动 RGB LCD(HV)时由于DCLK频率过高导致花屏

      lichee/brandy-2.0/u-boot-2018/drivers/video/sunxi/disp2/disp

      做以下修改即可

      diff --git a/de/disp_display.c b/de/disp_display.c
      index 45cb431..e3261f2 100644
      --- a/de/disp_display.c
      +++ b/de/disp_display.c
      @@ -1313,11 +1313,10 @@ s32 bsp_disp_lcd_set_panel_funs(char *name, disp_lcd_panel_fun *lcd_cfg)
       	}
       	/*now only support lcd0*/
       	num_compat_cnt = disp_get_compat_lcd_panel_num(0);
      -	for (screen_id = 0; screen_id < num_compat_cnt; screen_id++) {
      -		lcd = disp_get_lcd_compat(0, screen_id);
      +	for (screen_id = 1; screen_id <= num_compat_cnt; screen_id++) {
      +		lcd = disp_get_direct_lcd_compat(0, screen_id);
       		if (lcd && (lcd->set_panel_func)) {
       			if (!lcd->set_panel_func(lcd, name, lcd_cfg)) {
      -				gdisp.lcd_registered[screen_id] = 1;
       				registered_cnt++;
       				DE_INF("panel driver %s register for compatible usage\n", name);
       			}
      diff --git a/de/disp_lcd.c b/de/disp_lcd.c
      index 6dc6447..afe600f 100644
      --- a/de/disp_lcd.c
      +++ b/de/disp_lcd.c
      @@ -20,8 +20,8 @@ struct disp_lcd_private_data
       {
       	disp_lcd_flow             open_flow;
       	disp_lcd_flow             close_flow;
      -	/*0 for using this panel, other for index of compat_panel*/
       	u32                       compat_panel_index;
      +	u32                       switch_to_compat_panel_index;
       	disp_panel_para           panel_info;
       	panel_extend_para         panel_extend_info;
       	disp_lcd_cfg              lcd_cfg;
      @@ -67,51 +67,66 @@ static void disp_lcd_post_disable_ex(unsigned int disp);
       s32 disp_lcd_set_bright(struct disp_device *lcd, u32 bright);
       s32 disp_lcd_get_bright(struct disp_device *lcd);
       int disp_update_lcd_param(int lcd_param_index);
      -/*now only lcd0   index is the index for var lcds_compat*/
      -struct disp_device *disp_get_lcd_compat(u32 disp, u32 index)
      +
      +static struct disp_lcd_private_data *disp_lcd_get_priv(struct disp_device *lcd)
       {
      -	u32 num_compat;
      -	u32 num_screens;
      +	if (NULL == lcd) {
      +		DE_WRN("param is NULL!\n");
      +		return NULL;
      +	}
       
      +	return (struct disp_lcd_private_data *)lcd->priv_data;
      +}
      +
      +struct disp_device *disp_get_direct_lcd_compat(u32 disp, u32 index)
      +{
      +	/*
      +	 *    if g_compat_index is set, means not first boot, lcd_compat is NULL.
      +	 * disp_lcd_compat_set_panel_funs may try to get lcd_compat, so return NULL
      +	 * to prevent access NULL pointer.
      +	 */
       	if (g_compat_index)
      -		return NULL;/*  if g_compat_index is set, means not first boot, lcd_compat is NULL.
      -			     * disp_lcd_compat_set_panel_funs may try to get lcd_compat, so return NULL.
      -			     */
      -	num_screens = bsp_disp_feat_get_num_screens();
      -	num_compat = disp_get_compat_lcd_panel_num(0);
      -	if (disp >= num_screens || !bsp_disp_feat_is_supported_output_types(disp, DISP_OUTPUT_TYPE_LCD)) {
      -		DE_INF("disp %d not support lcd output\n", disp);
       		return NULL;
      -	}
      -	if (index >= num_compat) {
      -		DE_INF("not find %d lcd_compatible param for disp%d \n", index, disp);
      +	return &lcds_compat[index - 1];
      +}
      +/*now only lcd0   index is the index for var lcds_compat*/
      +static struct disp_device *disp_get_lcd_compat(u32 disp, u32 index)
      +{
      +	static int count;
      +	struct disp_lcd_private_data *lcd_compatp = &lcd_compat_private[index - 1];
      +	u32 next_index = lcd_compatp->switch_to_compat_panel_index;
      +	count++;
      +	if (count > 100) {
      +		DE_WRN("disp_get_lcd_compat endless loop ?\n");
       		return NULL;
       	}
      -	return &lcds_compat[index];
      +	if (next_index)
      +		return disp_get_lcd_compat(disp, next_index);
      +	else {
      +		count = 0;
      +		return &lcds_compat[index - 1];
      +	}
       }
       
       struct disp_device* disp_get_lcd(u32 disp)
       {
      -	u32 num_screens;
      +	u32 num_screens = bsp_disp_feat_get_num_screens();
      +	u32 num_compat = disp_get_compat_lcd_panel_num(0);
      +	u32 index = ((struct disp_lcd_private_data *)(lcds[disp].priv_data))->switch_to_compat_panel_index;
       
      -	num_screens = bsp_disp_feat_get_num_screens();
       	if (disp >= num_screens || !bsp_disp_feat_is_supported_output_types(disp, DISP_OUTPUT_TYPE_LCD)) {
       		DE_INF("disp %d not support lcd output\n", disp);
       		return NULL;
       	}
      -	if (!((struct disp_lcd_private_data *)(lcds[disp].priv_data))->compat_panel_index)
      -		return &lcds[disp];
      -	else
      -		return disp_get_lcd_compat(disp, (((struct disp_lcd_private_data *)(lcds[disp].priv_data))->compat_panel_index) - 1);
      -}
      -static struct disp_lcd_private_data *disp_lcd_get_priv(struct disp_device *lcd)
      -{
      -	if (NULL == lcd) {
      -		DE_WRN("param is NULL!\n");
      -		return NULL;
      -	}
       
      -	return (struct disp_lcd_private_data *)lcd->priv_data;
      +	if (index) {
      +		if (index > num_compat) {
      +			DE_WRN("not find %d lcd_compatible param for disp%d \n", index, disp);
      +			return NULL;
      +		}
      +		return disp_get_lcd_compat(disp, index);
      +	} else
      +		return &lcds[disp];
       }
       
       static s32 disp_lcd_is_used(struct disp_device* lcd)
      @@ -869,6 +884,7 @@ static s32 lcd_clk_exit(struct disp_device* lcd)
       static s32 lcd_clk_config(struct disp_device* lcd)
       {
       	struct disp_lcd_private_data *lcdp = disp_lcd_get_priv(lcd);
      +	disp_panel_para *panel = &lcdp->panel_info;
       	struct lcd_clk_info clk_info;
       	unsigned long pll_rate = 297000000, lcd_rate = 33000000, dclk_rate = 33000000, dsi_rate = 0;//hz
       	unsigned long pll_rate_set = 297000000, lcd_rate_set = 33000000, dclk_rate_set = 33000000, dsi_rate_set = 0;//hz
      @@ -939,8 +955,19 @@ static s32 lcd_clk_config(struct disp_device* lcd)
       	dclk_rate_set = lcd_rate_set / clk_info.tcon_div;
       	if ((pll_rate_set != pll_rate) || (lcd_rate_set != lcd_rate)
       		|| (dclk_rate_set != dclk_rate)) {
      -			DE_WRN("disp %d, clk: pll(%ld),clk(%ld),dclk(%ld) dsi_rate(%ld)\n     clk real:pll(%ld),clk(%ld),dclk(%ld) dsi_rate(%ld)\n",
      -				lcd->disp, pll_rate, lcd_rate, dclk_rate, dsi_rate, pll_rate_set, lcd_rate_set, dclk_rate_set, dsi_rate_set);
      +		/*  ajust the tcon_div to fix the real pll  */
      +		if (pll_rate_set > pll_rate) {
      +			panel->tcon_clk_div_ajust.clk_div_increase_or_decrease = INCREASE;
      +			panel->tcon_clk_div_ajust.div_multiple = pll_rate_set / pll_rate;
      +			dclk_rate_set /= panel->tcon_clk_div_ajust.div_multiple;
      +		} else {
      +			panel->tcon_clk_div_ajust.clk_div_increase_or_decrease = DECREASE;
      +			panel->tcon_clk_div_ajust.div_multiple = pll_rate / pll_rate_set;
      +			dclk_rate_set *= panel->tcon_clk_div_ajust.div_multiple;
      +		}
      +
      +		DE_WRN("disp %d, clk: pll(%ld),clk(%ld),dclk(%ld) dsi_rate(%ld)\n     clk real:pll(%ld),clk(%ld),dclk(%ld) dsi_rate(%ld)\n",
      +			lcd->disp, pll_rate, lcd_rate, dclk_rate, dsi_rate, pll_rate_set, lcd_rate_set, dclk_rate_set, dsi_rate_set);
       	}
       
       	return 0;
      @@ -1889,8 +1916,11 @@ s32 disp_lcd_switch_compat_panel(struct disp_device *lcd, unsigned int index)
       	disp_lcd_post_disable_ex(lcd->disp);
       	lcd->exit(lcd);
       	lcdp = disp_lcd_get_priv(lcd);
      -	lcdp->compat_panel_index = index;
      -	lcd_compat = disp_get_lcd_compat(lcd->disp, index - 1);
      +
      +	/*this flag make disp_get_lcd get correct compat_panel*/
      +	lcdp->switch_to_compat_panel_index = index;
      +
      +	lcd_compat = disp_get_lcd_compat(lcd->disp, index);
       	lcdp = disp_lcd_get_priv(lcd_compat);
       	lcdp->need_open_again = true;
       
      @@ -51,7 +51,7 @@
       #endif
       
       struct disp_device *disp_get_lcd(u32 disp);
      -struct disp_device *disp_get_lcd_compat(u32 disp, u32 index);
      +struct disp_device *disp_get_direct_lcd_compat(u32 disp, u32 index);
       
       struct disp_device *disp_get_hdmi(u32 disp);
       
      diff --git a/de/include.h b/de/include.h
      index 57c5db6..5e81f37 100644
      --- a/de/include.h
      +++ b/de/include.h
      @@ -658,6 +658,16 @@ enum disp_lcd_dsi_port {
       	DISP_LCD_DSI_DUAL_PORT,
       };
       
      +enum div_flag {
      +	 INCREASE        = 1,
      +	 DECREASE        = -1,
      +};
      +
      +struct clk_div_ajust {
      +	enum div_flag clk_div_increase_or_decrease;
      +	int div_multiple;
      +};
      +
       typedef struct {
       	disp_lcd_if              lcd_if;
       
      @@ -737,6 +747,7 @@ typedef struct {
       	unsigned int            ccir_clk_div; /*not need to config for user*/
       	unsigned int            input_csc;
       	unsigned int lcd_hv_data_polarity;
      +	struct clk_div_ajust tcon_clk_div_ajust;
       } disp_panel_para;
       
       typedef enum {
      diff --git a/de/lowlevel_v2x/de_dsi.c b/de/lowlevel_v2x/de_dsi.c
      index 6d629c5..3bb405d 100644
      --- a/de/lowlevel_v2x/de_dsi.c
      +++ b/de/lowlevel_v2x/de_dsi.c
      @@ -454,8 +454,11 @@ s32 dsi_dcs_rd(u32 sel, u8 cmd, u8 *para_p, u32 *num_p)
       		count++;
       		dsi_delay_us(100);
       	}
      -	if (count >= 50)
      +	if (count >= 50) {
       		dsi_dev[sel]->dsi_basic_ctl0.bits.inst_st = 0;
      +		dsi_dev[sel]->dsi_gctl.bits.dsi_en = 0;
      +		dsi_dev[sel]->dsi_gctl.bits.dsi_en = 1;
      +	}
       
       	if (dsi_dev[sel]->dsi_cmd_ctl.bits.rx_flag) {
       		if (dsi_dev[sel]->dsi_cmd_ctl.bits.rx_overflow)
      @@ -920,7 +923,6 @@ static s32 dsi_basic_cfg(u32 sel, disp_panel_para *panel)
       		dsi_dev[sel]->dsi_trans_zero.bits.hs_zero_reduce_set = 0;
       	} else {
       		s32 start_delay = panel->lcd_vt - panel->lcd_y - 10;
      -		u32 vfp = panel->lcd_vt - panel->lcd_y - panel->lcd_vbp;
       		u32 dsi_start_delay;
       
       		/*
      @@ -928,8 +930,7 @@ static s32 dsi_basic_cfg(u32 sel, disp_panel_para *panel)
       		 * set ready sync early to dramfreq, so set start_delay 1
       		 */
       		start_delay = 1;
      -
      -		dsi_start_delay = panel->lcd_vt - vfp + start_delay;
      +		dsi_start_delay = start_delay;
       		if (dsi_start_delay > panel->lcd_vt)
       			dsi_start_delay -= panel->lcd_vt;
       		if (dsi_start_delay == 0)
      @@ -942,7 +943,7 @@ static s32 dsi_basic_cfg(u32 sel, disp_panel_para *panel)
       		    dsi_start_delay;
       		dsi_dev[sel]->dsi_basic_ctl1.bits.video_precision_mode_align =
       		    1;
      -		dsi_dev[sel]->dsi_basic_ctl1.bits.video_frame_start = 0; /* 1 */
      +		dsi_dev[sel]->dsi_basic_ctl1.bits.video_frame_start = 1;
       		dsi_dev[sel]->dsi_trans_start.bits.trans_start_set = 10;
       		dsi_dev[sel]->dsi_trans_zero.bits.hs_zero_reduce_set = 0;
       		dsi_dev[sel]->dsi_basic_ctl1.bits.dsi_mode = 1;
      diff --git a/de/lowlevel_v2x/de_lcd_sun50iw10.c b/de/lowlevel_v2x/de_lcd_sun50iw10.c
      index 203e8a3..5a4cdf6 100644
      --- a/de/lowlevel_v2x/de_lcd_sun50iw10.c
      +++ b/de/lowlevel_v2x/de_lcd_sun50iw10.c
      @@ -393,7 +393,7 @@ s32 lvds_open(u32 sel, disp_panel_para *panel)
       #if defined(SUPPORT_COMBO_DPHY)
       		if (sel == 0) {
       			lvds_combphy_open(sel, panel);
      -		} else {
      +		} else if (sel < DEVICE_NUM) {
       			lcd_dev[sel]->tcon0_lvds_ana[0].bits.c = 2;
       			lcd_dev[sel]->tcon0_lvds_ana[0].bits.v = 3;
       			lcd_dev[sel]->tcon0_lvds_ana[0].bits.pd = 2;
      @@ -774,6 +774,7 @@ static s32 tcon0_cfg_mode_tri(u32 sel, disp_panel_para *panel)
       {
       	u32 start_delay = 0;
       	u32 de_clk_rate = de_get_clk_rate() / 1000000;
      +	u32 delay_line = 0;
       
       	de_clk_rate = (de_clk_rate == 0) ? 250 : de_clk_rate;
       
      @@ -783,8 +784,30 @@ static s32 tcon0_cfg_mode_tri(u32 sel, disp_panel_para *panel)
       	lcd_dev[sel]->tcon0_cpu_tri1.bits.block_num = panel->lcd_y - 1;
       	lcd_dev[sel]->tcon0_cpu_tri2.bits.trans_start_mode = 0;
       	lcd_dev[sel]->tcon0_cpu_tri2.bits.sync_mode = 0;
      -	start_delay = (panel->lcd_vt - panel->lcd_y - 8 - 1)
      -	    * panel->lcd_ht * de_clk_rate / panel->lcd_dclk_freq / 8;
      +
      +	/**
      +	 * When the blanking area of LCD is too small, the following formula is
      +	 * not applicable, that calculates the start_ Delay is too large.
      +	 *
      +	 * The formula is
      +	 * 		start_delay = (panel->lcd_vt - panel->lcd_y - 8 - 1)
      +	 *    			* panel->lcd_ht * de_clk_rate / panel->lcd_dclk_freq / 8;
      +	 *
      +	 * Therefore, the following formula is obtained by balancing the
      +	 * requirements of DE, TCON and PANEL modules for pixel data speed
      +	 *
      +	 */
      +	if (panel->lcd_vbp > 10)
      +		delay_line = 10;
      +	else if (panel->lcd_vbp <= 10 && panel->lcd_vbp > 4)
      +		delay_line = panel->lcd_vbp - 1;
      +	else {
      +		DE_WRN("vbp is too small, please readjust the timing parameters to increase vbp. \n");
      +		delay_line = panel->lcd_vbp;
      +	}
      +
      +	start_delay = delay_line * panel->lcd_ht * de_clk_rate / panel->lcd_dclk_freq / 8;
      +
       	lcd_dev[sel]->tcon0_cpu_tri2.bits.start_delay = start_delay;
       
       	lcd_dev[sel]->tcon0_cpu_ctl.bits.trigger_fifo_en = 1;
      diff --git a/de/lowlevel_v2x/disp_al.c b/de/lowlevel_v2x/disp_al.c
      index 635db57..cf76927 100644
      --- a/de/lowlevel_v2x/disp_al.c
      +++ b/de/lowlevel_v2x/disp_al.c
      @@ -746,10 +746,6 @@ int disp_al_lcd_get_clk_info(u32 screen_id, struct lcd_clk_info *info,
       	}
       #endif
       
      -	if (panel->lcd_dclk_freq < 48 && panel->lcd_dclk_freq >= 3) {
      -		tcon_div = 300 / panel->lcd_dclk_freq;
      -	}
      -
       	info->tcon_div = tcon_div;
       	info->lcd_div = lcd_div;
       	info->dsi_div = dsi_div;
      @@ -773,6 +769,11 @@ int disp_al_lcd_cfg(u32 screen_id, disp_panel_para *panel,
       
       	tcon_init(screen_id);
       	disp_al_lcd_get_clk_info(screen_id, &info, panel);
      +	if (panel->tcon_clk_div_ajust.clk_div_increase_or_decrease == INCREASE) {
      +		info.tcon_div = info.tcon_div * panel->tcon_clk_div_ajust.div_multiple;
      +	} else if (panel->tcon_clk_div_ajust.clk_div_increase_or_decrease == DECREASE) {
      +		info.tcon_div = info.tcon_div / panel->tcon_clk_div_ajust.div_multiple;
      +	}
       	tcon0_set_dclk_div(screen_id, info.tcon_div);
       
       #if !defined(TCON1_DRIVE_PANEL)
      diff --git a/dev_disp.c b/dev_disp.c
      index b850d96..1fcd080 100644
      --- a/dev_disp.c
      +++ b/dev_disp.c
      @@ -992,6 +992,17 @@ long disp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
       	//----layer----
       	case DISP_LAYER_SET_CONFIG:
       	{
      +
      +		const unsigned int lyr_cfg_size = ARRAY_SIZE(lyr_cfg);
      +
      +		if (IS_ERR_OR_NULL((void __user *)ubuffer[1])) {
      +			__wrn("incoming pointer of user is ERR or NULL");
      +			return -EFAULT;
      +		}
      +		if (ubuffer[2] == 0 || ubuffer[2] > lyr_cfg_size) {
      +			__wrn("layer number need to be set from 1 to %d\n", lyr_cfg_size);
      +			return -EFAULT;
      +		}
       		if (copy_from_user(lyr_cfg,
       			(void __user *)ubuffer[1],
       			sizeof(struct disp_layer_config) * ubuffer[2]))	{
      @@ -1005,6 +1016,17 @@ long disp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
       
       	case DISP_LAYER_GET_CONFIG:
       	{
      +
      +		const unsigned int lyr_cfg_size = ARRAY_SIZE(lyr_cfg);
      +
      +		if (IS_ERR_OR_NULL((void __user *)ubuffer[1])) {
      +			__wrn("incoming pointer of user is ERR or NULL");
      +			return -EFAULT;
      +		}
      +		if (ubuffer[2] == 0 || ubuffer[2] > lyr_cfg_size) {
      +			__wrn("layer number need to be set from 1 to %d\n", lyr_cfg_size);
      +			return -EFAULT;
      +		}
       		if (copy_from_user(lyr_cfg,
       			(void __user *)ubuffer[1],
       			sizeof(struct disp_layer_config) * ubuffer[2]))	{
      @@ -1026,6 +1048,17 @@ long disp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
       
       	case DISP_LAYER_SET_CONFIG2:
       	{
      +
      +		const unsigned int lyr_cfg_size = ARRAY_SIZE(lyr_cfg2);
      +
      +		if (IS_ERR_OR_NULL((void __user *)ubuffer[1])) {
      +			__wrn("incoming pointer of user is ERR or NULL");
      +			return -EFAULT;
      +		}
      +		if (ubuffer[2] == 0 || ubuffer[2] > lyr_cfg_size) {
      +			__wrn("layer number need to be set from 1 to %d\n", lyr_cfg_size);
      +			return -EFAULT;
      +		}
       		if (copy_from_user(lyr_cfg2,
       		    (void __user *)ubuffer[1],
       		    sizeof(struct disp_layer_config2) * ubuffer[2])) {
      @@ -1040,6 +1073,17 @@ long disp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
       
       	case DISP_LAYER_GET_CONFIG2:
       	{
      +
      +		const unsigned int lyr_cfg_size = ARRAY_SIZE(lyr_cfg2);
      +
      +		if (IS_ERR_OR_NULL((void __user *)ubuffer[1])) {
      +			__wrn("incoming pointer of user is ERR or NULL");
      +			return -EFAULT;
      +		}
      +		if (ubuffer[2] == 0 || ubuffer[2] > lyr_cfg_size) {
      +			__wrn("layer number need to be set from 1 to %d\n", lyr_cfg_size);
      +			return -EFAULT;
      +		}
       		if (copy_from_user(lyr_cfg2,
       		    (void __user *)ubuffer[1],
       		    sizeof(struct disp_layer_config2) * ubuffer[2])) {
      diff --git a/disp_sys_intf.c b/disp_sys_intf.c
      index a8032b5..5afccf1 100644
      --- a/disp_sys_intf.c
      +++ b/disp_sys_intf.c
      @@ -378,6 +378,7 @@ int disp_get_set_lcd_param_index_from_flash(bool is_set, int idx)
       			ret = -1;
       		}
       	} else {
      +#ifdef CONFIG_COMPATIBLE_PANEL_RECORD
       #ifdef CONFIG_FAT_WRITE
       		if (idx < 0 || idx > 9) {
       			ret = -1;
      @@ -399,6 +400,9 @@ int disp_get_set_lcd_param_index_from_flash(bool is_set, int idx)
       		pr_error("please enable FAT_WRITE for lcd compatible first\n");
       		ret = -1;
       #endif
      +#else
      +		ret = idx_get = idx;
      +#endif
       }
       exit_free:
       	kfree(buf);
      -- 
      
      发布在 MR Series
      Y
      YterAA
    • 回复: Tina procd-init 与 busybox-init 切换

      @memory

      11307b18-f0ec-46e5-b7af-6e3ef5741576-image.png

      (1)如果ramdisk_execute_command变量指定了要运行的程序,则启动它。
                ramdisk_execute_command的取值分三种情况,
               1)如果命令行参数指定了“rdinit=xxx”,则ramdisk_execute_command等于这个参数指定的程序
               2)否则,如果/init程序存在,ramdisk_execute_command就等于“/init”。
               3)否则,ramdisk__execute_command为空
      (2)如果execute_command变量指定了要运行的程序,启动它。
               如果命令行参数指定了"init=...",则execute_command等于这个参数指定的程序,否则为空
      (3)如果ramdisk_execute_command和execute_command参数都没有指定,则依次执行”/sbin/init、/etc/init、/bin/init、/bin/sh“
      
      在tina系统中,我们可以通过去修改env.cfg文件”rdinit=xxx“或”init=xxx“参数来指定启动的第一个用户进程
      
      发布在 Linux
      Y
      YterAA

    YterAA 发布的最新帖子

    • 回复: 全志芯片Tina Linux 修改 UART 引脚、UART端口

      @kelsey 写错了已修改

      发布在 Linux
      Y
      YterAA
    • 回复: d1不经过插件录音,得到的音频不正常

      MIC3有AEC功能,默认好像启用AEC了,去源码里关了看看

      发布在 MR Series
      Y
      YterAA
    • 回复: V853 sample_rtsp怎么编译不出二进制文件

      @qq519472926 我记得还要勾选一个rstp server,才能编译通过

      发布在 V Series
      Y
      YterAA
    • 回复: R329工作温度范围?

      -20℃~ 110℃

      参考数据手册:
      56e87c4f-5536-43ee-a7c6-19da8b8b1343-image.png

      发布在 A Series
      Y
      YterAA
    • 回复: T113的spi 不能使用compatible=“spidev”?

      参考 《D1-H_Linux_SPI_开发指南.pdf》

      使用spidev并不需要专门设置compatible = "spidev";。而设置spidev会导致 spidev listed directly in DT 错误。这里使用的虚拟设备可以通过compatible = "rohm,dh2228fv"; 这样的 compatible 设备绕过检测

      可用的spidev如下:
      0a055740-74c0-4b68-8a5d-a1c24fd60a14-image.png

      WARN参考spidev源码:
      8cdcd530-29c1-4c9c-8e4a-db31133219b7-image.png

      发布在 其它全志芯片讨论区
      Y
      YterAA
    • 回复: 全志V853 jpg怎么直接显示屏幕上

      解压到openwrt/package下

      fbviewer.tar.gz

      发布在 V Series
      Y
      YterAA
    • 解决 T113 修改 UART3 后 Uboot 有输出但是 Kernel 无法启动

      请按照如下步骤依次验证是否配置正确

      使用UART3,需要从UART0改为UART3(PB6,PB7)

      1. 修改sys_config.fex(BOOT0与Uboot的串口)

      sys_config.fex 的路径是 device/config/chips/t113/configs/evb1/sys_config.fex 中的 uart_debug_port

      修改前:

      [uart_para]
      uart_debug_port = 0
      uart_debug_tx   = port:PF02<3><1><default><default>
      uart_debug_rx   = port:PF04<3><1><default><default>
      

      修改后

      [uart_para]
      uart_debug_port = 0
      uart_debug_tx   = port:PB06<7><1><default><default>
      uart_debug_rx   = port:PB07<7><1><default><default>
      
      1. 修改设备树(Linux使用的串口输出)

      路径:device/config/chips/t113/configs/evb1/board.dts

      修改前

      uart3_pins_a: uart3_pins@0 {
      	pins = "PC6", "PC7";
      	function = "uart0";
      	drive-strength = <10>;
      	allwinner,muxsel = <4>;
      	bias-pull-up;
      };
      
      uart3_pins_b: uart3_pins@1 {
      	pins = "PC6", "PC7";
      	function = "gpio_in";
      };
      
      &uart0 {
      	pinctrl-names = "default", "sleep";
      	pinctrl-0 = <&uart0_pins_a>;
      	pinctrl-1 = <&uart0_pins_b>; 
      	status = "okay"; 
      };
      
      &uart3 {
      	pinctrl-names = "default", "sleep";
      	pinctrl-0 = <&uart3_pins_a>;
      	pinctrl-1 = <&uart3_pins_b>;
      	status = "disabled"; 
      };
      

      修改后

      uart3_pins_a: uart3_pins@0 {
      	pins = "PB6", "PB7";
      	function = "uart0";
      	drive-strength = <10>;
      	allwinner,muxsel = <7>;
      	bias-pull-up;
      };
      
      uart3_pins_b: uart3_pins@1 {
      	pins = "PB6", "PB7";
      	function = "gpio_in";
      };
      
      &uart0 {
      	pinctrl-names = "default", "sleep";
      	pinctrl-0 = <&uart0_pins_a>;
      	pinctrl-1 = <&uart0_pins_b>; 
      	status = "disabled";                               # 关闭UART0
      };
      
      &uart3 {
      	pinctrl-names = "default", "sleep";
      	pinctrl-0 = <&uart3_pins_a>;
      	pinctrl-1 = <&uart3_pins_b>;
      	status = "okay";                                   # 开启UART3
      };
      
      1. 修改UBOOT CONSOLE INDEX

      路径:brandy/brandy-2.0/u-boot-2018/configs/sun8iw20p1_defconfig
      增加下列内容

      CONFIG_SPECIFY_CONSOLE_INDEX=y
      CONFIG_CONS_INDEX=4                            # UART 3+1 = 4 
      
      1. 修改启动bootargs

      路径:device/config/chips/t113/configs/evb1/env.cfg

      修改前

      earlyprintk=sunxi-uart,0x02500000
      initcall_debug=0
      console=ttyS0,115200
      

      修改后
      earlyprintk=sunxi-uart,0x02500000 需要修改为 UART3 的地址,查阅手册可知为 0x02500C00
      12849b33-3786-417e-b2fe-7736c04d4b38-image.png

      earlyprintk=sunxi-uart,0x02500C00
      initcall_debug=0
      console=ttyS3,115200
      
      1. 修改 DEBUG_LL的地址
        make kernel_menuconfig 找到 Kernel low-level debugging functions,修改寄存器地址

      79bf0af2-3b08-48fb-810d-fc2b492209d0-image.png

      发布在 其它全志芯片讨论区
      Y
      YterAA
    • 回复: 全志芯片Tina Linux 修改 UART 引脚、UART端口

      注意 ARM 平台还需要设置Kernel,如下:

      make kernel_menuconfig 找到 Kernel low-level debugging functions,修改寄存器地址

      79bf0af2-3b08-48fb-810d-fc2b492209d0-image.png

      RISC-V 不需要此操作

      (之前忘记说了,现在补上

      发布在 Linux
      Y
      YterAA
    • 回复: Error: "distro_bootcmd" not defined

      @huangjun-zopudt 更新了mtd驱动,你可以试试全盘擦除再刷写

      发布在 MR Series
      Y
      YterAA
    • 回复: Error: "distro_bootcmd" not defined
      GUID Partition Table Header signature is wrong: 0x6F627464 != 0x5452415020494645
      part_get_info_efi: *** ERROR: Invalid GPT ***
      ERROR: attempting read past flash size
      *** ERROR: Can't read GPT header ***
      part_get_info_efi: *** ERROR: Invalid Backup GPT ***
      [00.265]Loading Environment from SUNXI_FLASH... GUID Partition Table Header signature is wrong: 0x6F627464 != 0x5452415020494645
      part_get_info_efi: *** ERROR: Invalid GPT ***
      ERROR: attempting read past flash size
      *** ERROR: Can't read GPT header ***
      part_get_info_efi: *** ERROR: Invalid Backup GPT ***
      *** Warning - no device, using default environment
      

      系统分区损坏了。无法读取到fs里的文件。可以参考下这个是怎么写的 https://www.aw-ol.com/downloads/resources/72

      发布在 MR Series
      Y
      YterAA