On Wed, 12 Nov 2014, bpqw wrote:
> This maybe your spi controller is still extended mode, > Once EVCR bit 7 is set to 0, the spi nor device will operate in quad > I/O.Command-address-data line is 4-x-4. > So after send WRITE EVCR command , spi controller also must transfer to quad > I/O Mode,and set its Command-address-data line also > Should be 4-x-4 . Thanks, this helped. I added some code to snoop the command stream for WRITE EVCR with quad mode, and then set up the quad mode in the controller. Seems kinda ugly, but working now. -Graham -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
