TCV_CFG_BENABLE
hme_read32(hp, tregs + TCVR_CFG) & ~(TCV_CFG_BENABLE));
hme_read32(hp, tregs + TCVR_CFG) | TCV_CFG_BENABLE);
hme_read32(hp, tregs + TCVR_CFG) & ~(TCV_CFG_BENABLE));
hme_read32(hp, tregs + TCVR_CFG) | TCV_CFG_BENABLE);