WPI_BSM_WR_CTRL
wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START);
if (!(wpi_prph_read(sc, WPI_BSM_WR_CTRL) &
wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START_EN);