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