TSTCNTL
PHY_WRITE(sc, TSTCNTL, 0);
PHY_WRITE(sc, TSTCNTL,
PHY_WRITE(sc, TSTCNTL,
PHY_WRITE(sc, TSTCNTL, 0);
PHY_WRITE(sc, TSTCNTL, TSTCNTL_TEST_MODE);
PHY_WRITE(sc, TSTCNTL, 0);
PHY_WRITE(sc, TSTCNTL, TSTCNTL_TEST_MODE);