/* (c) 2005 Linux Networx GPL see COPYING for details */ #include <console/console.h> #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> #include <device/pciexp.h> static void pciexp_tune_dev(device_t dev) { unsigned cap; cap = pci_find_capability(dev, PCI_CAP_ID_PCIE); if (!cap) { /* error... */ return; } printk_debug("PCIEXP: tunning %s\n", dev_path(dev)); #warning "IMPLEMENT PCI EXPRESS TUNING" } unsigned int pciexp_scan_bus(struct bus *bus, unsigned min_devfn, unsigned max_devfn, unsigned int max) { device_t child; max = pci_scan_bus(bus, min_devfn, max_devfn, max); for(child = bus->children; child; child = child->sibling) { if ( (child->path.u.pci.devfn < min_devfn) || (child->path.u.pci.devfn > max_devfn)) { continue; } pciexp_tune_dev(child); } return max; } unsigned int pciexp_scan_bridge(device_t dev, unsigned int max) { return do_pci_scan_bridge(dev, max, pciexp_scan_bus); } /** Default device operations for PCI Express bridges */ static struct pci_operations pciexp_bus_ops_pci = { .set_subsystem = 0, }; struct device_operations default_pciexp_ops_bus = { .read_resources = pci_bus_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_bus_enable_resources, .init = 0, .scan_bus = pciexp_scan_bridge, .enable = 0, .reset_bus = pci_bus_reset, .ops_pci = &pciexp_bus_ops_pci, };