IRS_CFG_READ_4
val = IRS_CFG_READ_4(irs, reg);
idr2 = IRS_CFG_READ_4(irs, IRS_IDR2);
spi_count = IRS_CFG_READ_4(irs, IRS_IDR5) & IRS_IDR5_SPI_RANGE;
IRS_CFG_READ_4(irs, IRS_IDR7) & IRS_IDR7_SPI_BASE;
IRS_CFG_READ_4(irs, IRS_IDR6) & IRS_IDR6_SPI_IRS_RANGE;
(IRS_CFG_READ_4(di->di_irs, IRS_IDR2) & IRS_IDR2_LPI) != 0;