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 18*4722c035SBin Meng DECLARE_GLOBAL_DATA_PTR; 19*4722c035SBin Meng 20d188b18fSSimon Glass static struct pci_controller x86_hose; 21d188b18fSSimon Glass 227430f108SSimon Glass int pci_early_init_hose(struct pci_controller **hosep) 237430f108SSimon Glass { 247430f108SSimon Glass struct pci_controller *hose; 257430f108SSimon Glass 267430f108SSimon Glass hose = calloc(1, sizeof(struct pci_controller)); 277430f108SSimon Glass if (!hose) 287430f108SSimon Glass return -ENOMEM; 297430f108SSimon Glass 307430f108SSimon Glass board_pci_setup_hose(hose); 317430f108SSimon Glass pci_setup_type1(hose); 327430f108SSimon Glass gd->arch.hose = hose; 337430f108SSimon Glass *hosep = hose; 347430f108SSimon Glass 357430f108SSimon Glass return 0; 367430f108SSimon Glass } 377430f108SSimon Glass 38e94ea6f6SSimon Glass __weak int board_pci_pre_scan(struct pci_controller *hose) 39e94ea6f6SSimon Glass { 40e94ea6f6SSimon Glass return 0; 41e94ea6f6SSimon Glass } 42e94ea6f6SSimon Glass 43e94ea6f6SSimon Glass __weak int board_pci_post_scan(struct pci_controller *hose) 44e94ea6f6SSimon Glass { 45e94ea6f6SSimon Glass return 0; 46e94ea6f6SSimon Glass } 47e94ea6f6SSimon Glass 48d188b18fSSimon Glass void pci_init_board(void) 49d188b18fSSimon Glass { 50d188b18fSSimon Glass struct pci_controller *hose = &x86_hose; 51d188b18fSSimon Glass 527430f108SSimon Glass /* Stop using the early hose */ 537430f108SSimon Glass gd->arch.hose = NULL; 547430f108SSimon Glass 55d188b18fSSimon Glass board_pci_setup_hose(hose); 56d188b18fSSimon Glass pci_setup_type1(hose); 57d188b18fSSimon Glass pci_register_hose(hose); 58d188b18fSSimon Glass 59e94ea6f6SSimon Glass board_pci_pre_scan(hose); 60d188b18fSSimon Glass hose->last_busno = pci_hose_scan(hose); 61e94ea6f6SSimon Glass board_pci_post_scan(hose); 62d188b18fSSimon Glass } 636fb3b72eSSimon Glass 646fb3b72eSSimon Glass static struct pci_controller *get_hose(void) 656fb3b72eSSimon Glass { 666fb3b72eSSimon Glass if (gd->arch.hose) 676fb3b72eSSimon Glass return gd->arch.hose; 686fb3b72eSSimon Glass 696fb3b72eSSimon Glass return pci_bus_to_hose(0); 706fb3b72eSSimon Glass } 716fb3b72eSSimon Glass 726fb3b72eSSimon Glass unsigned int pci_read_config8(pci_dev_t dev, unsigned where) 736fb3b72eSSimon Glass { 746fb3b72eSSimon Glass uint8_t value; 756fb3b72eSSimon Glass 766fb3b72eSSimon Glass pci_hose_read_config_byte(get_hose(), dev, where, &value); 776fb3b72eSSimon Glass 786fb3b72eSSimon Glass return value; 796fb3b72eSSimon Glass } 806fb3b72eSSimon Glass 816fb3b72eSSimon Glass unsigned int pci_read_config16(pci_dev_t dev, unsigned where) 826fb3b72eSSimon Glass { 836fb3b72eSSimon Glass uint16_t value; 846fb3b72eSSimon Glass 856fb3b72eSSimon Glass pci_hose_read_config_word(get_hose(), dev, where, &value); 866fb3b72eSSimon Glass 876fb3b72eSSimon Glass return value; 886fb3b72eSSimon Glass } 896fb3b72eSSimon Glass 906fb3b72eSSimon Glass unsigned int pci_read_config32(pci_dev_t dev, unsigned where) 916fb3b72eSSimon Glass { 926fb3b72eSSimon Glass uint32_t value; 936fb3b72eSSimon Glass 946fb3b72eSSimon Glass pci_hose_read_config_dword(get_hose(), dev, where, &value); 956fb3b72eSSimon Glass 966fb3b72eSSimon Glass return value; 976fb3b72eSSimon Glass } 986fb3b72eSSimon Glass 996fb3b72eSSimon Glass void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value) 1006fb3b72eSSimon Glass { 1016fb3b72eSSimon Glass pci_hose_write_config_byte(get_hose(), dev, where, value); 1026fb3b72eSSimon Glass } 1036fb3b72eSSimon Glass 1046fb3b72eSSimon Glass void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value) 1056fb3b72eSSimon Glass { 1066fb3b72eSSimon Glass pci_hose_write_config_word(get_hose(), dev, where, value); 1076fb3b72eSSimon Glass } 1086fb3b72eSSimon Glass 1096fb3b72eSSimon Glass void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value) 1106fb3b72eSSimon Glass { 1116fb3b72eSSimon Glass pci_hose_write_config_dword(get_hose(), dev, where, value); 1126fb3b72eSSimon Glass } 113