ref: 53fbb0515159465421053c3165b1aa9da196aa4d
dir: /sys/src/9/imx8/io.h/
enum { IRQfiq = -1, PPI = 16, SPI = 32, IRQcntps = PPI+13, IRQcntpns = PPI+14, IRQuart1 = SPI+26, IRQuart2 = SPI+27, IRQuart3 = SPI+28, IRQuart4 = SPI+29, IRQi2c1 = SPI+35, IRQi2c2 = SPI+36, IRQi2c3 = SPI+37, IRQi2c4 = SPI+38, IRQrdc = SPI+39, IRQusb1 = SPI+40, IRQusb2 = SPI+41, IRQsctr0 = SPI+47, IRQsctr1 = SPI+48, IRQenet1 = SPI+118, }; #define BUSUNKNOWN (-1)