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/* SPDX-License-Identifier: BSD-2-Clause */
/* PCI Configuration Library
*
* COPYRIGHT (c) 2010 Cobham Gaisler AB.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <pci/cfg.h>
/* Number of buses. This is set from respective library */
int pci_bus_cnt = 0;
/* PCI Address assigned to BARs which failed to fit into the PCI Window or
* is disabled by any other cause.
*/
uint32_t pci_invalid_address = 0;
/* PCI System type. Configuration Library setup this */
enum pci_system_type pci_system_type = PCI_SYSTEM_NONE;
/* PCI Endianness.
*
* Host driver or BSP must override this be writing here if bus is defined
* as non-standard big-endian.
*/
int pci_endian = PCI_LITTLE_ENDIAN;
/* Configure PCI devices and bridges, and setup the RAM data structures
* describing the PCI devices currently present in the system
*/
int pci_config_init(void)
{
if (pci_config_lib_init)
return pci_config_lib_init();
else
return 0;
}
void pci_config_register(void *config)
{
if (pci_config_lib_register)
pci_config_lib_register(config);
}
/* Return the number of PCI busses available in the system, note that
* there are always one bus (bus0) after the PCI library has been
* initialized and a driver has been registered.
*/
int pci_bus_count(void)
{
return pci_bus_cnt;
}
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