xref: /openbmc/u-boot/arch/x86/include/asm/pci.h (revision 6fb3b72e)
1fea25720SGraeme Russ 
2fea25720SGraeme Russ /*
3fea25720SGraeme Russ  * (C) Copyright 2002
4fa82f871SAlbert ARIBAUD  * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
5fea25720SGraeme Russ  *
61a459660SWolfgang Denk  * SPDX-License-Identifier:	GPL-2.0+
7fea25720SGraeme Russ  */
8fea25720SGraeme Russ 
9fea25720SGraeme Russ #ifndef _PCI_I386_H_
10452f50f7SGabe Black #define _PCI_I386_H_
11fea25720SGraeme Russ 
1283088afbSGraeme Russ #define DEFINE_PCI_DEVICE_TABLE(_table) \
1383088afbSGraeme Russ 	const struct pci_device_id _table[]
1483088afbSGraeme Russ 
15d188b18fSSimon Glass struct pci_controller;
16d188b18fSSimon Glass 
171cfcf037SGraeme Russ void pci_setup_type1(struct pci_controller *hose);
18d188b18fSSimon Glass 
19d188b18fSSimon Glass /**
20d188b18fSSimon Glass  * board_pci_setup_hose() - Set up the PCI hose
21d188b18fSSimon Glass  *
22d188b18fSSimon Glass  * This is called by the common x86 PCI code to set up the PCI controller
23d188b18fSSimon Glass  * hose. It may be called when no memory/BSS is available so should just
24d188b18fSSimon Glass  * store things in 'hose' and not in BSS variables.
25d188b18fSSimon Glass  */
26d188b18fSSimon Glass void board_pci_setup_hose(struct pci_controller *hose);
277430f108SSimon Glass 
287430f108SSimon Glass /**
297430f108SSimon Glass  * pci_early_init_hose() - Set up PCI host before relocation
307430f108SSimon Glass  *
317430f108SSimon Glass  * This allocates memory for, sets up and returns the PCI hose. It can be
327430f108SSimon Glass  * called before relocation. The hose will be stored in gd->arch.hose for
337430f108SSimon Glass  * later use, but will become invalid one DRAM is available.
347430f108SSimon Glass  */
357430f108SSimon Glass int pci_early_init_hose(struct pci_controller **hosep);
36*6fb3b72eSSimon Glass 
37*6fb3b72eSSimon Glass /*
38*6fb3b72eSSimon Glass  * Simple PCI access routines - these work from either the early PCI hose
39*6fb3b72eSSimon Glass  * or the 'real' one, created after U-Boot has memory available
40*6fb3b72eSSimon Glass  */
41*6fb3b72eSSimon Glass unsigned int pci_read_config8(pci_dev_t dev, unsigned where);
42*6fb3b72eSSimon Glass unsigned int pci_read_config16(pci_dev_t dev, unsigned where);
43*6fb3b72eSSimon Glass unsigned int pci_read_config32(pci_dev_t dev, unsigned where);
44*6fb3b72eSSimon Glass 
45*6fb3b72eSSimon Glass void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value);
46*6fb3b72eSSimon Glass void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value);
47*6fb3b72eSSimon Glass void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value);
48*6fb3b72eSSimon Glass 
49fea25720SGraeme Russ #endif
50