google/kahlee: Set SPI 100 MHz and SPI Dual Read IO mode

Set SPI Fast Read to 100MHz and Dual Read IO mode to speed up
the boot process by over a half second. Also, increase the Normal
Read speed to 33MHz as supported by the W25Q128FW.

BUG=b:70558952
TEST=Run cbmem -t to get boot times.

Change-Id: I616a96526ed90bb4ab0c9c6b78787799faa02633
Signed-off-by: Marc Jones <marc.jones@scarletltd.com>
Reviewed-on: https://review.coreboot.org/25970
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed