Hello, I have problem when compiling linux kernel for S3C2440 SoC, everytime the compiling failed with the following message,
scripts/kconfig/conf -s arch/arm/Kconfig
drivers/net/fec_mpc52xx/Kconfig:7:warning: 'select' used by config symbol 'FEC_MPC52xx' refer to undefined symbol 'PPC_BESTCOMM'
SYMLINK include/asm-arm/arch -> include/asm-arm/arch-s3c2410
make: `include/asm-arm/mach-types.h' is up to date.
Using /home/jy/linux/linux-18.104.22.168 as source for kernel
SYMLINK include/asm -> include/asm-arm
arch/arm/mach-s3c2410/built-in.o: In function `s3c2410_pm_drvinit':
common-smdk.c:(.init.text+0xb98): undefined reference to `s3c2410_sysclass'
make: *** [.tmp_vmlinux1] Error 1
And I have read some of the related code, doesn't find any clue. I am new to embedded linux, can anyboday give me some suggestion ? The toolchain used to compile it is arm-linux-gcc 4.0.0 (comes from ELDK4.1 for ARM).