/* SPDX-License-Identifier: GPL-2.0-only */ #include <device/device.h> #include <device/pci.h> #include <device/pci_ops.h> #include <device/pci_ids.h> #include "i82801ix.h" static void pci_init(struct device *dev) { u16 reg16; /* This device has no interrupt */ pci_write_config8(dev, PCI_INTERRUPT_LINE, 0xff); /* Master Latency Count must be set to 0x04! */ pci_update_config8(dev, D30F0_SMLT, 0x07, 0x04 << 3); /* Clear errors in status registers. FIXME: Do something? */ reg16 = pci_read_config16(dev, PCI_STATUS); //reg16 |= 0xf900; pci_write_config16(dev, PCI_STATUS, reg16); reg16 = pci_read_config16(dev, PCI_SEC_STATUS); // reg16 |= 0xf900; pci_write_config16(dev, PCI_SEC_STATUS, reg16); } static struct device_operations device_ops = { .read_resources = pci_bus_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_bus_enable_resources, .init = pci_init, .scan_bus = pci_scan_bridge, .reset_bus = pci_bus_reset, .ops_pci = &pci_dev_ops_pci, }; static const unsigned short pci_device_ids[] = { 0x244e, /* Desktop */ 0x2448, /* Mobile */ 0 }; static const struct pci_driver ich9_pci __pci_driver = { .ops = &device_ops, .vendor = PCI_VID_INTEL, .devices = pci_device_ids, };