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Diffstat (limited to 'c/src/lib/libbsp/shared/pci/pci_bus_count.c')
-rw-r--r--c/src/lib/libbsp/shared/pci/pci_bus_count.c68
1 files changed, 0 insertions, 68 deletions
diff --git a/c/src/lib/libbsp/shared/pci/pci_bus_count.c b/c/src/lib/libbsp/shared/pci/pci_bus_count.c
deleted file mode 100644
index 104bf34758..0000000000
--- a/c/src/lib/libbsp/shared/pci/pci_bus_count.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * This software is Copyright (C) 1998 by T.sqware - all rights limited
- * It is provided in to the public domain "as is", can be freely modified
- * as far as this copyight notice is kept unchanged, but does not imply
- * an endorsement by T.sqware of the product in which it is included.
- */
-
-#include <rtems.h>
-#include <rtems/pci.h>
-#include <rtems/bspIo.h>
-
-static uint8_t pci_number_of_buses = 0xff;
-
-unsigned char pci_bus_count(void)
-{
- if ( pci_number_of_buses != 0xff ) {
- return pci_number_of_buses;
- }
-
- uint8_t bus;
- uint8_t device;
- uint8_t function;
- uint8_t number_of_functions;
- uint8_t header = 0;
- uint8_t buses = 0;
- uint32_t vendor = 0;
- uint32_t class_rev = 0;
-
- pci_number_of_buses = 0;
-
- for (bus=0; bus < 0xff; bus++) {
- for (device=0; device < PCI_MAX_DEVICES; device++) {
-
- pci_read_config_dword(bus, device, 0, PCI_VENDOR_ID, &vendor);
- if ( vendor == -1 ) {
- continue;
- }
-
- pci_read_config_byte(bus, device, 0, PCI_HEADER_TYPE, &header);
- number_of_functions = (header & 0x80) ? PCI_MAX_FUNCTIONS : 1;
-
- for ( function=0; function < number_of_functions; function++ ) {
- pci_read_config_dword(bus, device, function, PCI_VENDOR_ID, &vendor);
- if ( vendor == -1 ) {
- continue;
- }
-
- pci_read_config_dword(bus, device, function, PCI_CLASS_REVISION, &class_rev);
- if ( (class_rev >> 16) == PCI_CLASS_BRIDGE_PCI ) {
- pci_read_config_byte(bus, device, function, PCI_SUBORDINATE_BUS, &buses);
- if ( buses > pci_number_of_buses ) {
- pci_number_of_buses = buses;
- }
- }
- }
- }
- }
-
- if ( pci_number_of_buses == 0 ) {
- printk("pci_bus_count() found 0 busses, assuming 1\n");
- pci_number_of_buses = 1;
- } else if ( pci_number_of_buses == 0xff ) {
- printk("pci_bus_count() found 0xff busses, assuming 1\n");
- pci_number_of_buses = 1;
- }
-
- return pci_number_of_buses;
-}