[PATCH v3 0/3] spi-nor: Add support for Intel SPI serial flash controller

[Mika Westerberg]

On Wed, Oct 05, 2016 at 01:31:20PM +0200, Stefan Roese wrote:
> Sure, I can definitely add something here in U-Boot. Since I'm
> pretty new to this driver / controller and its interface to the BIOS,
> could you perhaps suggest those values please? To enable the Linux
> driver with full read-write support to such chips?

These values are from Minnowboard MAX which is based on Baytrail:

[    8.112316] intel-spi intel-spi: PREOP_OPTYPE=0x7f480606
[    8.118278] intel-spi intel-spi: OPMENU0=0x0405039f
[    8.123754] intel-spi intel-spi: OPMENU1=0x0102d820

Maybe something like that?