BWI_TX32_CTRL
uint32_t txrx_reg = BWI_TXRX_CTRL_BASE + BWI_TX32_CTRL;
CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_CTRL, val);
CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_CTRL, 0);