REG_SRAM_RXF_LEN
AT_WRITE_REG(hw, REG_SRAM_RXF_LEN, 0x02a0L);
regs_buff[25] = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
rxf_len = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
value = ioread32(hw->hw_addr + REG_SRAM_RXF_LEN);