HI3518E加载sensor遇到的问题求解

   本人刚拿到海思的开发板不久，就照着例子和这个论坛的帖子进行测试，发现在执行
         ./load3518e -a -sensor ar0130 -osmem 32 -total 64
  时，有错误，错误提示为：
rmmod: can't unload 'tlv_320aic31': unknown symbol in module, or unknown parameter
rmmod: can't unload 'hi3518e_adec': unknown symbol in module, or unknown parameter
rmmod: can't unload 'hi3518e_aenc': unknown symbol in module, or unknown parameter
........................
和
Hisilicon Media Memory Zone Manager
ERROR: Conflict MMZ:
PHYS(0x82000000, 0x83FFFFFF), GFP=0, nBYTES=32768KB,        NAME="anonymous"
MMZ conflict to kernel memory (0x80000000, 0x83FFFFFF)
Add MMZ failed: PHYS(0x82000000, 0x83FFFFFF), GFP=0, nBYTES=32768KB,        NAME="anonymous"
Module himedia: init ok
hi3518e_base: module license 'Proprietary' taints kernel.
Disabling lock debugging due to kernel taint
malloc buffer for SYS sclcoeffset fail!
load sys.ko for Hi3518EV200...FAILURE!
insmod: can't insert 'hi3518e_sys.ko': Operation not permitted

论坛的帖子给的建议就是mem = 64M，改成mem = 32M,
可是我执行 setenv bootargs 'mem=32M console=ttyAMA0,115200 root 告诉我 -sh setenv not found，怎么解决呢，改成set可以执行，但是还是包同样的错误，怎么办，求大神帮忙