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继续请教--------内核 head.S调试,enable MMU后 挂死求助,谢谢!



续前一个求助帖子 (可看如下链接)

www.deyisupport.com/.../86562.aspx

自己设计的AM335X,enable MMU后挂死,uboot下DDR3参数已经按照CCS工具优化配置,且对0x8000_0000至0x8200_0000的DDR3区间用mtest进行地址/数据线 以及迭代读写压力测试均ok,请问下TI:除了DDR3配置的怀疑方向,还有没其他的怀疑点,还请高手的指点思路和方向,谢谢~

kernel 3.2.0

__turn_mmu_on:
mov r0, r0
mcr p15, 0, r0, c1, c0, 0 @ write control reg --执行打开MMU后,就挂掉,请问下TI工程师是否哪边的配置错误?
mrc p15, 0, r3, c0, c0, 0 @ read id reg
mov r3, r3
mov r3, r13
mov pc, r3
__enable_mmu_end:
ENDPROC(__turn_mmu_on)