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我按照一些帖子修改了补丁什么的，然后运行的时候检测不到我的flash，请高手帮忙！谢谢！！！！

处理器是华邦的w90n740，flash是sst39vf3201。

我还应该怎么做？问题可能出在什么地方？

w90 sst flash device: 400000 at 7f000000
JEDEC: Found no W90 SST flash device at location zero
Amd/Fujitsu Extended Query Table v255.1 at 0x0000
number of CFI chips: 1
Sum of regions (800000) != total size of set of interleaved chips (400000)
cfi_probe: No supported Vendor Command Set found
init_mtdchar: allocated major number 90.
init_mtdblock: allocated major number 30.