pciem86xx.h

bootloader源代码

/*****************************************
 Copyright (c) 2003-2004
 Sigma Designs, Inc. All Rights Reserved
 Proprietary and Confidential
 *****************************************/

/* This file is part of the EM86XX boot loader */

/*
 * pciem86xx.h
 *
 * EM86XX as a PCI Host
 *
 * by Ho Lee 02/05/2003
 */

#ifndef __BOOTLOADER_PCIHOST_H
#define __BOOTLOADER_PCIHOST_H

#include "pcicommon.h"

//
// EM86XX PCI specific
// 

#define PCI_EM86XX_IDSEL_FIRST      0x00
#if defined(CONFIG_ARCH_MAMBO) || defined(CONFIG_ARCH_TANGO10)
#define PCI_EM86XX_IDSEL_MAX        0x04
#elif defined(CONFIG_ARCH_TANGO15)
#define PCI_EM86XX_IDSEL_MAX        0x05
#endif

//
// global variables
//

struct my_pci_op g_pciem86xx_op;

//
// function prototypes
//

// pci bus initialization
int pci_em86xx_init(int verbose);

// basic functions
int pci_em86xx_info(void);
unsigned int pci_em86xx_pciio_base(int idsel);
unsigned int pci_em86xx_pcimemory_base(int idsel);
unsigned int pci_em86xx_select(int idsel);

// primitive PCI configuration I/O
int pci_em86xx_read_config_byte(unsigned int addr, unsigned char *data8);
int pci_em86xx_read_config_word(unsigned int addr, unsigned short *data16);
int pci_em86xx_read_config_dword(unsigned int addr, unsigned int *data32);
int pci_em86xx_write_config_byte(unsigned int addr, unsigned int data8);
int pci_em86xx_write_config_word(unsigned int addr, unsigned int data16);
int pci_em86xx_write_config_dword(unsigned int addr, unsigned int data32);

// primitive PCI I/O
unsigned char pci_em86xx_read_byte(unsigned int addr);
unsigned short pci_em86xx_read_word(unsigned int addr);
unsigned int pci_em86xx_read_dword(unsigned int addr);
void pci_em86xx_write_byte(unsigned int data, unsigned int addr);
void pci_em86xx_write_word(unsigned int data, unsigned int addr);
void pci_em86xx_write_dword(unsigned int data, unsigned int addr);

// APIs for PCI-based device drivers
void pci_em86xx_dma_write(void *buf, int len, unsigned int addr, int verbose);
void pci_em86xx_dma_read(void *buf, int len, unsigned int addr, int verbose);

// Miscellaneous
int pci_em86xx_test(int argc, char *argv[]);

#endif