[U-Boot-Users] why disable the i cache when erase the syncflash on mx1ads

[齐尧]

I have downloaded the latest u-boot by means of CVS,and i configured it for
MX1ADS,but I dont konw the code in board/mx1ads/flash.c
int flash+AF8-erase(flash+AF8-info+AF8-t +ACo- info, int first ,int last)
+AHs-
    .....................
    icache+AF8-disable()+ADs-
    ....................
+AH0-
before the actual operation for the syncflash,why disable the I cache+ACE- I
have dealed with Flash for some time ,but I never meet thing like such+ACE-