ubootimx6ull uboot 2020.04源码下载和编译环境配置

Posted 2021-06-25 ZHONGCAI0901

文章目录

• 1. 获取 ARM 官方交叉编译工具链
• 2. imx6ull uboot源码下载
• 3. imx6ull uboot编译

1. 获取 ARM 官方交叉编译工具链

在ubuntu linux环境下编译imx6ull uboot源码时，需要安装对应版本的交叉编译工具链。IMX6ULL的CPU是 32bit ARM v7架构并支持硬件浮点，所以下载 AArch32版本工具链后缀为gnueabihf，地址如下：

https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-a/downloads

解压之后将工具路径添加到环境变量：$ vim ~/.bashrc

export ARCH=arm
export CROSS_COMPILE=arm-none-linux-gnueabihf-
export PATH=$PATH:/opt/ToolChain/gcc-arm-10.2-2020.11-x86_64-arm-none-linux-gnueabihf/bin

验证是否配置成功，输入命令：$ arm-none-linux-gnueabihf-gcc -v。配置成功结果如下：

2. imx6ull uboot源码下载

IMX官方uboot最新源码下载步骤如下：

• git下载地址：

  git clone https://source.codeaurora.org/external/imx/uboot-imx
  

• 查看最新分析

  git branch -a
  

  显示最新版本为：imx_v2020.04_5.4.70_2.3.0
  

• 切换到最新的分支：

  git checkout remotes/origin/imx_v2020.04_5.4.70_2.3.0
  

  查看是否切换分支成功：

  git branch
  

  

3. imx6ull uboot编译

• 编译uboot指令：

  $ make distclean  // 彻底清除工程
  $ make mx6ull_14x14_evk_emmc_defconfig  // 在源码configs目录下选择适合自己板子的配置文件
  $ make -j4  // 使用多线程开始编译
  

  编译成功会生成u-boot-dtb.imx文件，结果如下：
  
• 烧录测试
  烧录之后可以正常开机，打印log如下：

  U-Boot 2020.04-gc5b1babb-dirty (May 29 2021 - 17:11:35 +0800)
  
  CPU:   i.MX6ULL rev1.1 792 MHz (running at 396 MHz)
  CPU:   Industrial temperature grade (-40C to 105C) at 46C
  Reset cause: POR
  Model: i.MX6 ULL 14x14 EVK Board
  Board: MX6ULL 14x14 EVK
  DRAM:  512 MiB
  MMC:   FSL_SDHC: 0, FSL_SDHC: 1
  Loading Environment from MMC... *** Warning - bad CRC, using default environment
  
  [*]-Video Link 0 (480 x 272)
  [0] lcdif@21c8000, video
  In:    serial
  Out:   serial
  Err:   serial
  switch to partitions #0, OK
  mmc1(part 0) is current device
  flash target is MMC:1
  Net:   
  Error: ethernet@20b4000 address not set.
  
  Error: ethernet@20b4000 address not set.
  
  Error: ethernet@20b4000 address not set.
  FEC: can't find phy-handle
  
  Error: ethernet@20b4000 address not set.
  Could not get PHY for FEC0: addr 2
  
  Error: ethernet@20b4000 address not set.
  FEC: can't find phy-handle
  
  Error: ethernet@20b4000 address not set.
  Could not get PHY for FEC0: addr 2
  No ethernet found.
  
  Fastboot: Normal
  Normal Boot
  Hit any key to stop autoboot:  3  2  0 
  => 
  =>