soc/intel/cmn/fast_spi: Add API to check if SPI Cycle In Progress

This patch creates a helper function to check if any SPI transaction
is pending.

As per Intel PCH BIOS spec section 3.6 Flash Security Recommendation,
it's important to ensure there is no pending SPI transaction before
setting SPI lock bits.

BUG=b:211954778
TEST=Able to build google/brya with this patch and no error msg seen
due to `SPI transaction is pending`.

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ibd3f67ae60bfcb3610cd0950b057da97ff74b5b9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63624
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>

0 files changed, 0 insertions, 0 deletions