u-boot/arch/x86/include/asm/pci.h
Simon Glass e94ea6f656 x86: pci: Add handlers before and after a PCI hose scan
Some boards will want to do some setup before and after a PCI hose
is scanned.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2014-11-25 06:34:00 -07:00

52 lines
1.6 KiB
C

/*
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _PCI_I386_H_
#define _PCI_I386_H_
#define DEFINE_PCI_DEVICE_TABLE(_table) \
const struct pci_device_id _table[]
struct pci_controller;
void pci_setup_type1(struct pci_controller *hose);
/**
* board_pci_setup_hose() - Set up the PCI hose
*
* This is called by the common x86 PCI code to set up the PCI controller
* hose. It may be called when no memory/BSS is available so should just
* store things in 'hose' and not in BSS variables.
*/
void board_pci_setup_hose(struct pci_controller *hose);
/**
* pci_early_init_hose() - Set up PCI host before relocation
*
* This allocates memory for, sets up and returns the PCI hose. It can be
* called before relocation. The hose will be stored in gd->arch.hose for
* later use, but will become invalid one DRAM is available.
*/
int pci_early_init_hose(struct pci_controller **hosep);
int board_pci_pre_scan(struct pci_controller *hose);
int board_pci_post_scan(struct pci_controller *hose);
/*
* Simple PCI access routines - these work from either the early PCI hose
* or the 'real' one, created after U-Boot has memory available
*/
unsigned int pci_read_config8(pci_dev_t dev, unsigned where);
unsigned int pci_read_config16(pci_dev_t dev, unsigned where);
unsigned int pci_read_config32(pci_dev_t dev, unsigned where);
void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value);
void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value);
void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value);
#endif