[U-Boot] problem

I have a problem when I compiled u-boot-2012.07 in my am335x.Can you help me? u-boot-2012.07/include/configs/mybeaglebone.h:31:26: asm/arch/cpu.h：没有那个文件或目录 u-boot-2012.07/include/configs/mybeaglebone.h:32:31: asm/arch/hardware.h：没有那个文件或目录