U-BOOT-2009.08移植出现的问题，求大神解救！

如下：出现什么问题，变量没定义吗？要怎样解决？
stack-protector   -o smdk2440.o smdk2440.c -c
smdk2440.c: In function ‘board_init’:
smdk2440.c:85: error: ‘M_MDIV’ undeclared (first use in this function)
smdk2440.c:85: error: (Each undeclared identifier is reported only once
smdk2440.c:85: error: for each function it appears in.)
smdk2440.c:85: error: ‘M_PDIV’ undeclared (first use in this function)
smdk2440.c:85: error: ‘M_SDIV’ undeclared (first use in this function)
make[1]: *** [smdk2440.o] Error 1
make[1]: Leaving directory `/home/work/u-boot-2009.08/board/samsung/smdk2440'
make: *** [board/samsung/smdk2440/libsmdk2440.a] Error 2

在 2440上 我们没有使用U-BOOT-2009.08版本的uboot，建议直接在源码中找有没有它的定义