SK-AM62: There was a problem compiling the device tree

Hi Cherry,

Cherry Zhou said:

There isn't the K3-am625-SK.DTS file like the kernel in the SDK, 

Where does the kernel source come from? not from the Processor SDK?

Hi,

Thank you for the support.

Bin Liu said:

Where does the kernel source come from? not from the Processor SDK?

No, it was downloaded from TI.com, and the configuration files used when building the kernel are defconfig and tisdk-AM62xx-EVM-RT_defconfig in the SDK.

Thanks and regards,

Cherry

Hi Cherry,

Can you please attach the full log showing the compiling process? I tried 'make ... ti/k3-am625-sk.dtb' in SDK8.6 kernel folder but didn't see any issue.

Hi,

Bin Liu said:

Can you please attach the full log showing the compiling process?

ubuntu@ubuntu:~/linux_kernel/linux-5.10.176$ make ARCH=arm64 CROSS_COMPILE=aarch64-none-linux-gnu- Image
SYNC include/config/auto.conf.cmd
UPD include/config/kernel.release
UPD include/generated/utsrelease.h
CALL scripts/checksyscalls.sh
CALL scripts/atomic/check-atomics.sh
CHK include/generated/compile.h
CC init/version.o
AR init/built-in.a
CC kernel/sys.o
CC kernel/module.o
UPD kernel/config_data
GZIP kernel/config_data.gz
CC kernel/configs.o
AR kernel/built-in.a
CC drivers/base/firmware_loader/main.o
AR drivers/base/firmware_loader/built-in.a
AR drivers/base/built-in.a
AR drivers/built-in.a
CC net/ethtool/ioctl.o
AR net/ethtool/built-in.a
AR net/built-in.a
GEN .version
CHK include/generated/compile.h
UPD include/generated/compile.h
CC init/version.o
AR init/built-in.a
LD vmlinux.o
MODPOST vmlinux.symvers
MODINFO modules.builtin.modinfo
GEN modules.builtin
LD .tmp_vmlinux.kallsyms1
KSYMS .tmp_vmlinux.kallsyms1.S
AS .tmp_vmlinux.kallsyms1.S
LD .tmp_vmlinux.kallsyms2
KSYMS .tmp_vmlinux.kallsyms2.S
AS .tmp_vmlinux.kallsyms2.S
LD vmlinux
SORTTAB vmlinux
SYSMAP System.map
OBJCOPY arch/arm64/boot/Image
ubuntu@ubuntu:~/linux_kernel/linux-5.10.176$ make ARCH=arm64 CROSS_COMPILE=aarch64-none-linux-gnu- ti/k3-am625-sk.dtb

DTC arch/arm64/boot/dts/ti/k3-am625-sk.dtb
Error: arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi:233.4-5 syntax error
FATAL ERROR: Unable to parse input tree
scripts/Makefile.lib:326: recipe for target 'arch/arm64/boot/dts/ti/k3-am625-sk.dtb' failed
make[1]: *** [arch/arm64/boot/dts/ti/k3-am625-sk.dtb] Error 1
Makefile:1377: recipe for target 'ti/k3-am625-sk.dtb' failed
make: *** [ti/k3-am625-sk.dtb] Error 2

(The files in arch/ARM64/boot/DTS/ti in the linux5.10.176 kernel, which is downloaded by the customer, are AM65 only, so copy the ti file from the SDK kernel to linux5.10.176 to compile)

There are ti-owned device tree files in the kernel folder /arch/arm62/boot/DTS/ti in the SDK. In kernel /arch/arm62/boot/DTS/ti downloaded from the Linux official website, only device tree files for SK-AM65 are available. Is it possible to copy the device tree files for the AM625 from /arch/arm62/boot/DTS/ti in the SDK directly to the downloaded kernel? 

Thanks and regards,

Cherry