更新 yocto 上的自定义设备树
Update custom device tree on yocto
我正在使用 sama5d27-wlsom1-ek 开发板进行演示，我正在尝试更改设备树。
到目前为止我已经编译了 core-image-minimal 并且发现我的 dtb 文件是在
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/build/arch/arm/boot/dts
文件夹。
我还在
中找到了很多不同的dts文件
build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/arch/arm/boot/dts
但是如果设备树文件是在构建文件夹中生成的，我的机器从哪里获取设备树文件？如果我使用我的自定义 dts 文件，我该如何更新它们？
我想使用我的 custom.dts 文件构建映像，在该文件中我启用了某些外围设备并禁用了不需要的外围设备。 （将来自定义 dtb 的测试）。
我尝试了在这里找到的不同方法
也
我创建了一个新的 meta-local 图层并将其添加到 bblayer
然后是 recipetool 命令将我的 dts 文件添加到新层。将 KERNEL_DEVICETREE += "custom.dtb" 添加到在 meta-local 中生成的 .bbappend 文件中，然后 运行 bitbake 到目前为止构建图像命令
但是，当我尝试构建图像时，我似乎 运行 遇到以下错误。
Loading cache: 100% |############################################| Time: 0:00:00
Loaded 3474 entries from dependency cache.
Parsing recipes: 100% |##########################################| Time: 0:00:00
Parsing of 2309 .bb files complete (2307 cached, 2 parsed). 3476 targets, 358 skipped, 0 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies
Build Configuration:
BB_VERSION = "1.46.0"
BUILD_SYS = "x86_64-linux"
NATIVELSBSTRING = "universal"
TARGET_SYS = "arm-poky-linux-gnueabi"
MACHINE = "sama5d27-wlsom1-ek-sd"
DISTRO = "poky-atmel"
DISTRO_VERSION = "3.1.7"
TUNE_FEATURES = "arm vfp cortexa5 neon vfpv4 thumb callconvention-hard"
TARGET_FPU = "hard"
meta
meta-poky
meta-yocto-bsp = "dunfell:97a9f30f1c457c55bf0c791d0466ff8620110a49"
meta-oe
meta-networking
meta-webserver
meta-python
meta-initramfs = "dunfell:2915810edbb6599051e30efb3b7f805665ddcc23"
meta-atmel = "dunfell:d6e30f2c0e3592ed11f3a4c8380a14d0a9066ba6"
meta-multimedia = "dunfell:2915810edbb6599051e30efb3b7f805665ddcc23"
meta-aws = "dunfell:2e2a1c65603dc5d11349e25dc9470a65cbeb8e65"
meta-freshair
meta-local
workspace = "dunfell:97a9f30f1c457c55bf0c791d0466ff8620110a49"
Initialising tasks: 100% |#######################################| Time: 0:00:04
Sstate summary: Wanted 294 Found 262 Missed 32 Current 2095 (89% match, 98% complete)
NOTE: Executing Tasks
ERROR: linux-at91-5.4+gitAUTOINC+3dba8c9991-r0 do_compile: oe_runmake failed
ERROR: linux-at91-5.4+gitAUTOINC+3dba8c9991-r0 do_compile: Execution of '/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/temp/run.do_compile.57871' failed with exit code 1:
GEN Makefile
CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/atomic/check-atomics.sh
CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/checksyscalls.sh
CHK include/generated/compile.h
Kernel: arch/arm/boot/Image is ready
Kernel: arch/arm/boot/zImage is ready
make[2]: *** No rule to make target 'arch/arm/boot/dts/new_name.dtb'. Stop.
make[1]: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:1265: new_name.dtb] Error 2
make: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:179: sub-make] Error 2
WARNING: exit code 1 from a shell command.
ERROR: Logfile of failure stored in: /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/temp/log.do_compile.57871
Log data follows:
| DEBUG: Executing shell function do_compile
| NOTE: KBUILD_BUILD_TIMESTAMP: Thu Jan 14 12:54:56 UTC 2021
| NOTE: make -j 12 HOSTCC=gcc -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 HOSTCPP=gcc -E HOSTCXX=g++ -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 zImage CC=arm-poky-linux-gnueabi-gcc -mno-thumb-interwork -marm -fuse-ld=bfd -fmacro-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source=/usr/src/kernel LD=arm-poky-linux-gnueabi-ld.bfd
| GEN Makefile
| CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/atomic/check-atomics.sh
| CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/checksyscalls.sh
| CHK include/generated/compile.h
| Kernel: arch/arm/boot/Image is ready
| Kernel: arch/arm/boot/zImage is ready
| NOTE: make -j 12 HOSTCC=gcc -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 HOSTCPP=gcc -E HOSTCXX=g++ -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 at91-sama5d27_wlsom1_ek.dtb CC=arm-poky-linux-gnueabi-gcc -mno-thumb-interwork -marm -fuse-ld=bfd -fmacro-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source=/usr/src/kernel LD=arm-poky-linux-gnueabi-ld.bfd
| NOTE: make -j 12 HOSTCC=gcc -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 HOSTCPP=gcc -E HOSTCXX=g++ -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 new_name.dtb CC=arm-poky-linux-gnueabi-gcc -mno-thumb-interwork -marm -fuse-ld=bfd -fmacro-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source=/usr/src/kernel LD=arm-poky-linux-gnueabi-ld.bfd
| make[2]: *** No rule to make target 'arch/arm/boot/dts/new_name.dtb'. Stop.
| make[1]: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:1265: new_name.dtb] Error 2
| make: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:179: sub-make] Error 2
| ERROR: oe_runmake failed
| WARNING: exit code 1 from a shell command.
| ERROR: Execution of '/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/temp/run.do_compile.57871' failed with exit code 1:
| GEN Makefile
| CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/atomic/check-atomics.sh
| CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/checksyscalls.sh
| CHK include/generated/compile.h
| Kernel: arch/arm/boot/Image is ready
| Kernel: arch/arm/boot/zImage is ready
| make[2]: *** No rule to make target 'arch/arm/boot/dts/new_name.dtb'. Stop.
| make[1]: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:1265: new_name.dtb] Error 2
| make: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:179: sub-make] Error 2
| WARNING: exit code 1 from a shell command.
|
ERROR: Task (/home/fakhruddin/workspace/Freshair/my_dir/poky/../meta-atmel/recipes-kernel/linux/linux-at91_5.4.81.bb:do_compile) failed with exit code '1'
NOTE: Tasks Summary: Attempted 6463 tasks of which 6457 didn't need to be rerun and 1 failed.
Summary: 1 task failed:
/home/fakhruddin/workspace/Freshair/my_dir/poky/../meta-atmel/recipes-kernel/linux/linux-at91_5.4.81.bb:do_compile
Summary: There were 2 ERROR messages shown, returning a non-zero exit code.
如果我遗漏了任何需要的信息，请告诉我。
谢谢你，问候，
索希尔
Linux 内核设备树位于：
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/git/arch/arm/boot/dts
请注意，来源在 git 中，最终构建在 build 中。
您必须确保 new_name.dtb 存在于主 Makefile 中：
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/git/arch/arm/boot/dts/Makfile
+dtb-$(CONFIG_SOC_AT91SAM9) += new_name.dtb
现在必须将新的设备树添加到 KERNEL_DEVICETREE 变量中，它告诉 Yocto 要构建哪些内核设备树并将其传送到引导分区中，以便 u-boot 在引导时将其中之一加载到 RAM 中董事会：
KERNEL_DEVICETREE += "new_name.dtb"
现在，在您了解了设备树是如何放置在内核中之后，您可以自动执行此操作，为您的 linux-at91 内核主配方创建一个 bbappend 配方并添加您的自定义设备树那里。
meta-local/
recipes-kernel/
linux/
files/
new_custom.dts
linux-at91_%.bbappend
现在，你需要在编译内核之前复制你的新dts文件(do_compile)，最好的时机是在do_configure:
之后
FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
SRC_URI_append = " file://new_custom.dts"
do_configure_append(){
cp ${WORKDIR}/new_custom.dts ${S}/arch/arm/boot/dts
echo "dtb-$(CONFIG_SOC_AT91SAM9) += new_dts.dtb" >> ${S}/arch/arm/boot/dts/Makefile
}
现在，您的新设备树将被编译，任何编译错误都可能是由于语法错误。
知道设备树被编译并添加到 KERNEL_DEVICETREE 后，这意味着它与所有其他设备树一起出现在引导分区中，也在 KERNEL_DEVICETREE 变量中，但是你-boot 在加载 Linux 内核之前仅在 RAM 中加载其中一个，并且该设备树设置在您的 u-boot 目标 defconfig 文件中，该文件位于：
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/u-boot-.../<version>/git/configs/your_machine_defconfig
您可以在您的机器配置文件中的 UBOOT_CONFIG 变量中找到 your_machine_defconfig，该文件位于您板的 BSP 层中：
meta-<board>/conf/machine/<board>.conf
找到defconfig后你可以找到一个变量DEFAULT_FDT_FILE.
首先，不要改变它，只是构建你的镜像，然后在 uboot 阶段和 printenv 暂停以查看 fdt_file 变量并将其设置为你的 new_name.dtb 文件和saveenv 为每次启动保存它。
如果没问题，您现在可以修补您的 uboot defconfig 文件以设置新的设备树文件。
Yocto 小费：
内核配方中的 ${WORKDIR} 指向：
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/
${S}指向${WORKDIR}
下的git目录
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/git
这就是我从 ${WORKDIR}
复制新设备树的原因
我建议使用 devtool modify linux-at91 修改 linux 内核源代码树。这将在您的 ${TOPDIR}/workspace/sources/linux-at91 中创建一个 linux-at91 文件夹。如果您不知道您的 ${TOPDIR}，请尝试使用 bitbake -e <recipe-name> | grep "TOPDIR"。 bitbake -e 将打印该食谱的整个元数据，在这里您可以使用 grep 查找不同变量的分配。 （比如你的 KERNEL_DEVICETREE）
${TOPDIR}/workspace/sources/linux-at91
这将是您的 linux-at91 配方的源树。
将您的 dts 文件复制到 ${TOPDIR}/workspace/sources/linux-at91/arch/arm/boot/dts。
修改 Makefile 以包含您的 dts，正如@BelHadjSalem TALEL 所指出的（谢谢！）。
提交这些更改并生成补丁。
在你自己的图层中，recipes-kernel/linux-at91/linux-at91下放置这个补丁文件。添加 recipes-kernel/linux-at91/linux-at91.bbappend 以包含此补丁，如下所示：
FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
SRC_URI += "file://0001-add-dts-file.patch"
现在构建您的自定义机器，添加 conf/machine/custom-machine.conf 并为您的自定义 KERNEL_DEVICETREE 添加一个条目，如图所示 here
# This will inherit your base machine
require conf/machine/sama5d27-wlsom1-ek-sd.conf
KERNEL_DEVICETREE = "your-dts-file.dtb"
总的来说，您的图层将包含以下文件：
- conf/layer.conf
- conf/machine/custom-machine.conf (Contains the above settings)
- recipes-kernel/linux-at91/linux-at91/0001-add-dts-file.patch
- recipes-kernel/linux-at91/linux-at91/linux-at91.bbappend
只是为了了解@BelHadjSalem 的出色反应：我们也可以使用 subdir，而不是通过 'do_configure_append' 手动复制 dts 文件。
所以而不是
do_configure_append() {
cp ${WORKDIR}/new_custom.dts ${S}/arch/arm/boot/dts
}
我们只需要：
SRC_URI_append = " file://new_custom.dts;subdir=git/arch/arm/boot/dts"
我正在使用 sama5d27-wlsom1-ek 开发板进行演示，我正在尝试更改设备树。
到目前为止我已经编译了 core-image-minimal 并且发现我的 dtb 文件是在
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/build/arch/arm/boot/dts
文件夹。
我还在
中找到了很多不同的dts文件build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/arch/arm/boot/dts
但是如果设备树文件是在构建文件夹中生成的，我的机器从哪里获取设备树文件？如果我使用我的自定义 dts 文件，我该如何更新它们？
我想使用我的 custom.dts 文件构建映像，在该文件中我启用了某些外围设备并禁用了不需要的外围设备。 （将来自定义 dtb 的测试）。
我尝试了在这里找到的不同方法
我创建了一个新的 meta-local 图层并将其添加到 bblayer
然后是 recipetool 命令将我的 dts 文件添加到新层。将 KERNEL_DEVICETREE += "custom.dtb" 添加到在 meta-local 中生成的 .bbappend 文件中，然后 运行 bitbake 到目前为止构建图像命令
但是，当我尝试构建图像时，我似乎 运行 遇到以下错误。
Loading cache: 100% |############################################| Time: 0:00:00
Loaded 3474 entries from dependency cache.
Parsing recipes: 100% |##########################################| Time: 0:00:00
Parsing of 2309 .bb files complete (2307 cached, 2 parsed). 3476 targets, 358 skipped, 0 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies
Build Configuration:
BB_VERSION = "1.46.0"
BUILD_SYS = "x86_64-linux"
NATIVELSBSTRING = "universal"
TARGET_SYS = "arm-poky-linux-gnueabi"
MACHINE = "sama5d27-wlsom1-ek-sd"
DISTRO = "poky-atmel"
DISTRO_VERSION = "3.1.7"
TUNE_FEATURES = "arm vfp cortexa5 neon vfpv4 thumb callconvention-hard"
TARGET_FPU = "hard"
meta
meta-poky
meta-yocto-bsp = "dunfell:97a9f30f1c457c55bf0c791d0466ff8620110a49"
meta-oe
meta-networking
meta-webserver
meta-python
meta-initramfs = "dunfell:2915810edbb6599051e30efb3b7f805665ddcc23"
meta-atmel = "dunfell:d6e30f2c0e3592ed11f3a4c8380a14d0a9066ba6"
meta-multimedia = "dunfell:2915810edbb6599051e30efb3b7f805665ddcc23"
meta-aws = "dunfell:2e2a1c65603dc5d11349e25dc9470a65cbeb8e65"
meta-freshair
meta-local
workspace = "dunfell:97a9f30f1c457c55bf0c791d0466ff8620110a49"
Initialising tasks: 100% |#######################################| Time: 0:00:04
Sstate summary: Wanted 294 Found 262 Missed 32 Current 2095 (89% match, 98% complete)
NOTE: Executing Tasks
ERROR: linux-at91-5.4+gitAUTOINC+3dba8c9991-r0 do_compile: oe_runmake failed
ERROR: linux-at91-5.4+gitAUTOINC+3dba8c9991-r0 do_compile: Execution of '/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/temp/run.do_compile.57871' failed with exit code 1:
GEN Makefile
CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/atomic/check-atomics.sh
CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/checksyscalls.sh
CHK include/generated/compile.h
Kernel: arch/arm/boot/Image is ready
Kernel: arch/arm/boot/zImage is ready
make[2]: *** No rule to make target 'arch/arm/boot/dts/new_name.dtb'. Stop.
make[1]: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:1265: new_name.dtb] Error 2
make: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:179: sub-make] Error 2
WARNING: exit code 1 from a shell command.
ERROR: Logfile of failure stored in: /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/temp/log.do_compile.57871
Log data follows:
| DEBUG: Executing shell function do_compile
| NOTE: KBUILD_BUILD_TIMESTAMP: Thu Jan 14 12:54:56 UTC 2021
| NOTE: make -j 12 HOSTCC=gcc -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 HOSTCPP=gcc -E HOSTCXX=g++ -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 zImage CC=arm-poky-linux-gnueabi-gcc -mno-thumb-interwork -marm -fuse-ld=bfd -fmacro-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source=/usr/src/kernel LD=arm-poky-linux-gnueabi-ld.bfd
| GEN Makefile
| CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/atomic/check-atomics.sh
| CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/checksyscalls.sh
| CHK include/generated/compile.h
| Kernel: arch/arm/boot/Image is ready
| Kernel: arch/arm/boot/zImage is ready
| NOTE: make -j 12 HOSTCC=gcc -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 HOSTCPP=gcc -E HOSTCXX=g++ -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 at91-sama5d27_wlsom1_ek.dtb CC=arm-poky-linux-gnueabi-gcc -mno-thumb-interwork -marm -fuse-ld=bfd -fmacro-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source=/usr/src/kernel LD=arm-poky-linux-gnueabi-ld.bfd
| NOTE: make -j 12 HOSTCC=gcc -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 HOSTCPP=gcc -E HOSTCXX=g++ -isystem/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/include -O2 -pipe -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -L/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,--enable-new-dtags -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath-link,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/usr/lib -Wl,-rpath,/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native/lib -Wl,-O1 -Wl,--allow-shlib-undefined -Wl,--dynamic-linker=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/sysroots-uninative/x86_64-linux/lib/ld-linux-x86-64.so.2 new_name.dtb CC=arm-poky-linux-gnueabi-gcc -mno-thumb-interwork -marm -fuse-ld=bfd -fmacro-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0=/usr/src/debug/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0 -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/recipe-sysroot-native= -fdebug-prefix-map=/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source=/usr/src/kernel LD=arm-poky-linux-gnueabi-ld.bfd
| make[2]: *** No rule to make target 'arch/arm/boot/dts/new_name.dtb'. Stop.
| make[1]: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:1265: new_name.dtb] Error 2
| make: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:179: sub-make] Error 2
| ERROR: oe_runmake failed
| WARNING: exit code 1 from a shell command.
| ERROR: Execution of '/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/temp/run.do_compile.57871' failed with exit code 1:
| GEN Makefile
| CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/atomic/check-atomics.sh
| CALL /home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/scripts/checksyscalls.sh
| CHK include/generated/compile.h
| Kernel: arch/arm/boot/Image is ready
| Kernel: arch/arm/boot/zImage is ready
| make[2]: *** No rule to make target 'arch/arm/boot/dts/new_name.dtb'. Stop.
| make[1]: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:1265: new_name.dtb] Error 2
| make: *** [/home/fakhruddin/workspace/Freshair/my_dir/poky/build/tmp/work-shared/sama5d27-wlsom1-ek-sd/kernel-source/Makefile:179: sub-make] Error 2
| WARNING: exit code 1 from a shell command.
|
ERROR: Task (/home/fakhruddin/workspace/Freshair/my_dir/poky/../meta-atmel/recipes-kernel/linux/linux-at91_5.4.81.bb:do_compile) failed with exit code '1'
NOTE: Tasks Summary: Attempted 6463 tasks of which 6457 didn't need to be rerun and 1 failed.
Summary: 1 task failed:
/home/fakhruddin/workspace/Freshair/my_dir/poky/../meta-atmel/recipes-kernel/linux/linux-at91_5.4.81.bb:do_compile
Summary: There were 2 ERROR messages shown, returning a non-zero exit code.
如果我遗漏了任何需要的信息，请告诉我。
谢谢你，问候，
索希尔
Linux 内核设备树位于：
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/git/arch/arm/boot/dts
请注意，来源在 git 中，最终构建在 build 中。
您必须确保 new_name.dtb 存在于主 Makefile 中：
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/git/arch/arm/boot/dts/Makfile
+dtb-$(CONFIG_SOC_AT91SAM9) += new_name.dtb
现在必须将新的设备树添加到 KERNEL_DEVICETREE 变量中，它告诉 Yocto 要构建哪些内核设备树并将其传送到引导分区中，以便 u-boot 在引导时将其中之一加载到 RAM 中董事会：
KERNEL_DEVICETREE += "new_name.dtb"
现在，在您了解了设备树是如何放置在内核中之后，您可以自动执行此操作，为您的 linux-at91 内核主配方创建一个 bbappend 配方并添加您的自定义设备树那里。
meta-local/
recipes-kernel/
linux/
files/
new_custom.dts
linux-at91_%.bbappend
现在，你需要在编译内核之前复制你的新dts文件(do_compile)，最好的时机是在do_configure:
之后FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
SRC_URI_append = " file://new_custom.dts"
do_configure_append(){
cp ${WORKDIR}/new_custom.dts ${S}/arch/arm/boot/dts
echo "dtb-$(CONFIG_SOC_AT91SAM9) += new_dts.dtb" >> ${S}/arch/arm/boot/dts/Makefile
}
现在，您的新设备树将被编译，任何编译错误都可能是由于语法错误。
知道设备树被编译并添加到 KERNEL_DEVICETREE 后，这意味着它与所有其他设备树一起出现在引导分区中，也在 KERNEL_DEVICETREE 变量中，但是你-boot 在加载 Linux 内核之前仅在 RAM 中加载其中一个，并且该设备树设置在您的 u-boot 目标 defconfig 文件中，该文件位于：
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/u-boot-.../<version>/git/configs/your_machine_defconfig
您可以在您的机器配置文件中的 UBOOT_CONFIG 变量中找到 your_machine_defconfig，该文件位于您板的 BSP 层中：
meta-<board>/conf/machine/<board>.conf
找到defconfig后你可以找到一个变量DEFAULT_FDT_FILE.
首先，不要改变它，只是构建你的镜像，然后在 uboot 阶段和 printenv 暂停以查看 fdt_file 变量并将其设置为你的 new_name.dtb 文件和saveenv 为每次启动保存它。
如果没问题，您现在可以修补您的 uboot defconfig 文件以设置新的设备树文件。
Yocto 小费：
内核配方中的${WORKDIR} 指向：
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/
${S}指向${WORKDIR}
/tmp/work/sama5d27_wlsom1_ek_sd-poky-linux-gnueabi/linux-at91/5.4+gitAUTOINC+3dba8c9991-r0/git
这就是我从 ${WORKDIR}
我建议使用 devtool modify linux-at91 修改 linux 内核源代码树。这将在您的 ${TOPDIR}/workspace/sources/linux-at91 中创建一个 linux-at91 文件夹。如果您不知道您的 ${TOPDIR}，请尝试使用 bitbake -e <recipe-name> | grep "TOPDIR"。 bitbake -e 将打印该食谱的整个元数据，在这里您可以使用 grep 查找不同变量的分配。 （比如你的 KERNEL_DEVICETREE）
${TOPDIR}/workspace/sources/linux-at91
这将是您的 linux-at91 配方的源树。
将您的 dts 文件复制到 ${TOPDIR}/workspace/sources/linux-at91/arch/arm/boot/dts。
修改 Makefile 以包含您的 dts，正如@BelHadjSalem TALEL 所指出的（谢谢！）。
提交这些更改并生成补丁。
在你自己的图层中，recipes-kernel/linux-at91/linux-at91下放置这个补丁文件。添加 recipes-kernel/linux-at91/linux-at91.bbappend 以包含此补丁，如下所示：
FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
SRC_URI += "file://0001-add-dts-file.patch"
现在构建您的自定义机器，添加 conf/machine/custom-machine.conf 并为您的自定义 KERNEL_DEVICETREE 添加一个条目，如图所示 here
# This will inherit your base machine
require conf/machine/sama5d27-wlsom1-ek-sd.conf
KERNEL_DEVICETREE = "your-dts-file.dtb"
总的来说，您的图层将包含以下文件：
- conf/layer.conf
- conf/machine/custom-machine.conf (Contains the above settings)
- recipes-kernel/linux-at91/linux-at91/0001-add-dts-file.patch
- recipes-kernel/linux-at91/linux-at91/linux-at91.bbappend
只是为了了解@BelHadjSalem 的出色反应：我们也可以使用 subdir，而不是通过 'do_configure_append' 手动复制 dts 文件。 所以而不是
do_configure_append() {
cp ${WORKDIR}/new_custom.dts ${S}/arch/arm/boot/dts
}
我们只需要：
SRC_URI_append = " file://new_custom.dts;subdir=git/arch/arm/boot/dts"