? 2013?09?11? 19:30, Mark Brown ??:

Indeed - what I was wondering was if those opcodes could be requested
from the flash driver rather than coded in there.  The driver needs to
write the commands to the device but it's not clear to me if it really
needs to know the specific commands.

yes. The driver uses the commands to find the _right_ LUT index, and
uses the LUT index to
trigger the controller.

For example, LUT0-LUT3 is used for the READ_STATUS, the driver will
match the
0 index for the NOR's read status operation (0x05), and then the driver
write 0 to the QSPI_IPCR
register to trigger the operation.

thanks
Huang Shijie