Hi,

I connected SPI-nor flash with BBB. The SPI-nor flash is SST25VF080B. When 
I boot the BBB with SDCard mode, the communication with spi0-nor flash is 
OK. But, when I boot the BBB with eMMC mode with same kernel, the 
commuincation with spi0-nor flash is NOT ok. (BBB cannot read the chip ID 
of the flash).

This is log of SD card mode booting:
[ 2.419205] spi-nor spi0.0: sst25vf080b (1024 Kbytes) [ 2.424333] 2 
fixed-partitions partitions found on MTD device spi0.0 [ 2.430748] Creating 
2 MTD partitions on "spi0.0": [ 2.435601] 0x000000000000-0x000000010000 : 
"partition1" [ 2.447042] 0x000000010000-0x000000020000 : "partition2" 

This is log of eMMC mode booting:
[ 2.423553] spi-nor spi0.0: unrecognized JEDEC id bytes: 00 00 00 00 00 00 
[ 2.430502] spi-nor: probe of spi0.0 failed with error -2 

How can I resolve this problem? Can you give me an inforamtion on this case?

J.Hwan Kim

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