gt_pci_init.c File Reference

PCI configuration space access. More...

#include <rtems.h>
#include <bsp.h>
#include <libcpu/io.h>
#include <bsp/pci.h>
#include <rtems/bspIo.h>
#include <stdint.h>

Data Structures
struct	PciHoseCfg

Macros
#define	MV64x60_PCI0_CONFIG_ADDR   (BSP_MV64x60_BASE + 0xcf8)
#define	MV64x60_PCI0_CONFIG_DATA   (BSP_MV64x60_BASE + 0xcfc)
#define	MV64x60_PCI1_CONFIG_ADDR   (BSP_MV64x60_BASE + 0xc78)
#define	MV64x60_PCI1_CONFIG_DATA   (BSP_MV64x60_BASE + 0xc7c)
#define	PCI_BUS2HOSE(bus)   (bus<BSP_pci_hose1_bus_base?0:1)
#define	pci   hoses[hose]
#define	HOSE_PREAMBLE
#define	PCI_ERR_BITS   0xf900
#define	PCI_STATUS_OK(x)   (!((x)&PCI_ERR_BITS))

Functions
void	detect_host_bridge (void)
void	BSP_pci_initialize (void)
unsigned long	_BSP_clear_hostbridge_errors (int enableMCP, int quiet)

Variables
unsigned	BSP_pci_hose1_bus_base = (unsigned)-1
const pci_config_access_functions	pci_hosed_indirect_functions
unsigned char	ucMaxPCIBus
unsigned short(*	_BSP_clear_vmebridge_errors )(int)=0

Detailed Description

PCI configuration space access.

This code is heavily inspired by the public specification of STREAM V2 that can be found at:

• http://www.chorus.com/Documentation/index.html by following the STREAM API Specification Document link.

Macro Definition Documentation

HOSE_PREAMBLE

#define HOSE_PREAMBLE

Value:

    uint8_t hose; \
        if (bus < BSP_pci_hose1_bus_base) { \
            hose = 0; \
        } else { \
            hose = 1; \
            bus -= BSP_pci_hose1_bus_base; \
        }

Variable Documentation

pci_hosed_indirect_functions

const pci_config_access_functions pci_hosed_indirect_functions

Initial value:

= {
    indirect_pci_read_config_byte,
    indirect_pci_read_config_word,
    indirect_pci_read_config_dword,
    indirect_pci_write_config_byte,
    indirect_pci_write_config_word,
    indirect_pci_write_config_dword
}