1 /* 2 * (C) Copyright 2002 3 * Daniel Engström, Omicron Ceti AB, daniel@omicron.se 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef _PCI_I386_H_ 9 #define _PCI_I386_H_ 10 11 /* bus mapping constants (used for PCI core initialization) */ 12 #define PCI_REG_ADDR 0xcf8 13 #define PCI_REG_DATA 0xcfc 14 15 #define PCI_CFG_EN 0x80000000 16 17 #ifndef __ASSEMBLY__ 18 19 #define DEFINE_PCI_DEVICE_TABLE(_table) \ 20 const struct pci_device_id _table[] 21 22 struct pci_controller; 23 24 void pci_setup_type1(struct pci_controller *hose); 25 26 /** 27 * board_pci_setup_hose() - Set up the PCI hose 28 * 29 * This is called by the common x86 PCI code to set up the PCI controller 30 * hose. It may be called when no memory/BSS is available so should just 31 * store things in 'hose' and not in BSS variables. 32 */ 33 void board_pci_setup_hose(struct pci_controller *hose); 34 35 /** 36 * pci_early_init_hose() - Set up PCI host before relocation 37 * 38 * This allocates memory for, sets up and returns the PCI hose. It can be 39 * called before relocation. The hose will be stored in gd->hose for 40 * later use, but will become invalid one DRAM is available. 41 */ 42 int pci_early_init_hose(struct pci_controller **hosep); 43 44 int board_pci_pre_scan(struct pci_controller *hose); 45 int board_pci_post_scan(struct pci_controller *hose); 46 47 /* 48 * Simple PCI access routines - these work from either the early PCI hose 49 * or the 'real' one, created after U-Boot has memory available 50 */ 51 unsigned int pci_read_config8(pci_dev_t dev, unsigned where); 52 unsigned int pci_read_config16(pci_dev_t dev, unsigned where); 53 unsigned int pci_read_config32(pci_dev_t dev, unsigned where); 54 55 void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value); 56 void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value); 57 void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value); 58 59 #endif /* __ASSEMBLY__ */ 60 61 #endif /* _PCI_I386_H_ */ 62