TPIU_FFCR
csdev_access_relaxed_write32(csa, FFCR_STOP_FI, TPIU_FFCR);
csdev_access_relaxed_write32(csa, FFCR_STOP_FI | FFCR_FON_MAN, TPIU_FFCR);
coresight_timeout(csa, TPIU_FFCR, FFCR_FON_MAN_BIT, 0);