XSPI_MCR_DQS_FA_SEL_MASK
reg &= ~(XSPI_MCR_CKN_FA_EN | XSPI_MCR_DQS_FA_SEL_MASK |
FIELD_MODIFY(XSPI_MCR_DQS_FA_SEL_MASK, ®, 0x01);
FIELD_MODIFY(XSPI_MCR_DQS_FA_SEL_MASK, ®, 0x03);