Function octopci_read_config

freebsd/mips/cavium/octopci.c:336–377

}

static uint32_t
octopci_read_config(device_t dev, u_int bus, u_int slot, u_int func, u_int reg,
    int bytes)
{
	struct octopci_softc *sc;
	uint64_t addr;
	uint32_t data;

	sc = device_get_softc(dev);

	if (octeon_has_feature(OCTEON_FEATURE_PCIE)) {
		if (bus == 0 && slot == 0 && func == 0)
			return ((uint32_t)-1);

		switch (bytes) {
		case 4:
			return (cvmx_pcie_config_read32(sc->sc_domain, bus, slot, func, reg));
		case 2:
			return (cvmx_pcie_config_read16(sc->sc_domain, bus, slot, func, reg));
		case 1:
			return (cvmx_pcie_config_read8(sc->sc_domain, bus, slot, func, reg));
		default:
			return ((uint32_t)-1);
		}
	}

	addr = octopci_cs_addr(bus, slot, func, reg);

	switch (bytes) {
	case 4:
		data = le32toh(cvmx_read64_uint32(addr));
		return (data);
	case 2:
		data = le16toh(cvmx_read64_uint16(addr));
		return (data);
	case 1:
		data = cvmx_read64_uint8(addr);
		return (data);
	default:
		return ((uint32_t)-1);
	}
}

static void
octopci_write_config(device_t dev, u_int bus, u_int slot, u_int func,