1d188b18fSSimon Glass /* 2d188b18fSSimon Glass * Copyright (c) 2011 The Chromium OS Authors. 3d188b18fSSimon Glass * (C) Copyright 2008,2009 4d188b18fSSimon Glass * Graeme Russ, <graeme.russ@gmail.com> 5d188b18fSSimon Glass * 6d188b18fSSimon Glass * (C) Copyright 2002 7d188b18fSSimon Glass * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se> 8d188b18fSSimon Glass * 9d188b18fSSimon Glass * SPDX-License-Identifier: GPL-2.0+ 10d188b18fSSimon Glass */ 11d188b18fSSimon Glass 12d188b18fSSimon Glass #include <common.h> 137430f108SSimon Glass #include <errno.h> 147430f108SSimon Glass #include <malloc.h> 15d188b18fSSimon Glass #include <pci.h> 16d188b18fSSimon Glass #include <asm/pci.h> 17d188b18fSSimon Glass 18d188b18fSSimon Glass static struct pci_controller x86_hose; 19d188b18fSSimon Glass 207430f108SSimon Glass int pci_early_init_hose(struct pci_controller **hosep) 217430f108SSimon Glass { 227430f108SSimon Glass struct pci_controller *hose; 237430f108SSimon Glass 247430f108SSimon Glass hose = calloc(1, sizeof(struct pci_controller)); 257430f108SSimon Glass if (!hose) 267430f108SSimon Glass return -ENOMEM; 277430f108SSimon Glass 287430f108SSimon Glass board_pci_setup_hose(hose); 297430f108SSimon Glass pci_setup_type1(hose); 307430f108SSimon Glass gd->arch.hose = hose; 317430f108SSimon Glass *hosep = hose; 327430f108SSimon Glass 337430f108SSimon Glass return 0; 347430f108SSimon Glass } 357430f108SSimon Glass 36*e94ea6f6SSimon Glass __weak int board_pci_pre_scan(struct pci_controller *hose) 37*e94ea6f6SSimon Glass { 38*e94ea6f6SSimon Glass return 0; 39*e94ea6f6SSimon Glass } 40*e94ea6f6SSimon Glass 41*e94ea6f6SSimon Glass __weak int board_pci_post_scan(struct pci_controller *hose) 42*e94ea6f6SSimon Glass { 43*e94ea6f6SSimon Glass return 0; 44*e94ea6f6SSimon Glass } 45*e94ea6f6SSimon Glass 46d188b18fSSimon Glass void pci_init_board(void) 47d188b18fSSimon Glass { 48d188b18fSSimon Glass struct pci_controller *hose = &x86_hose; 49d188b18fSSimon Glass 507430f108SSimon Glass /* Stop using the early hose */ 517430f108SSimon Glass gd->arch.hose = NULL; 527430f108SSimon Glass 53d188b18fSSimon Glass board_pci_setup_hose(hose); 54d188b18fSSimon Glass pci_setup_type1(hose); 55d188b18fSSimon Glass pci_register_hose(hose); 56d188b18fSSimon Glass 57*e94ea6f6SSimon Glass board_pci_pre_scan(hose); 58d188b18fSSimon Glass hose->last_busno = pci_hose_scan(hose); 59*e94ea6f6SSimon Glass board_pci_post_scan(hose); 60d188b18fSSimon Glass } 616fb3b72eSSimon Glass 626fb3b72eSSimon Glass static struct pci_controller *get_hose(void) 636fb3b72eSSimon Glass { 646fb3b72eSSimon Glass if (gd->arch.hose) 656fb3b72eSSimon Glass return gd->arch.hose; 666fb3b72eSSimon Glass 676fb3b72eSSimon Glass return pci_bus_to_hose(0); 686fb3b72eSSimon Glass } 696fb3b72eSSimon Glass 706fb3b72eSSimon Glass unsigned int pci_read_config8(pci_dev_t dev, unsigned where) 716fb3b72eSSimon Glass { 726fb3b72eSSimon Glass uint8_t value; 736fb3b72eSSimon Glass 746fb3b72eSSimon Glass pci_hose_read_config_byte(get_hose(), dev, where, &value); 756fb3b72eSSimon Glass 766fb3b72eSSimon Glass return value; 776fb3b72eSSimon Glass } 786fb3b72eSSimon Glass 796fb3b72eSSimon Glass unsigned int pci_read_config16(pci_dev_t dev, unsigned where) 806fb3b72eSSimon Glass { 816fb3b72eSSimon Glass uint16_t value; 826fb3b72eSSimon Glass 836fb3b72eSSimon Glass pci_hose_read_config_word(get_hose(), dev, where, &value); 846fb3b72eSSimon Glass 856fb3b72eSSimon Glass return value; 866fb3b72eSSimon Glass } 876fb3b72eSSimon Glass 886fb3b72eSSimon Glass unsigned int pci_read_config32(pci_dev_t dev, unsigned where) 896fb3b72eSSimon Glass { 906fb3b72eSSimon Glass uint32_t value; 916fb3b72eSSimon Glass 926fb3b72eSSimon Glass pci_hose_read_config_dword(get_hose(), dev, where, &value); 936fb3b72eSSimon Glass 946fb3b72eSSimon Glass return value; 956fb3b72eSSimon Glass } 966fb3b72eSSimon Glass 976fb3b72eSSimon Glass void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value) 986fb3b72eSSimon Glass { 996fb3b72eSSimon Glass pci_hose_write_config_byte(get_hose(), dev, where, value); 1006fb3b72eSSimon Glass } 1016fb3b72eSSimon Glass 1026fb3b72eSSimon Glass void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value) 1036fb3b72eSSimon Glass { 1046fb3b72eSSimon Glass pci_hose_write_config_word(get_hose(), dev, where, value); 1056fb3b72eSSimon Glass } 1066fb3b72eSSimon Glass 1076fb3b72eSSimon Glass void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value) 1086fb3b72eSSimon Glass { 1096fb3b72eSSimon Glass pci_hose_write_config_dword(get_hose(), dev, where, value); 1106fb3b72eSSimon Glass } 111