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 36d188b18fSSimon Glass void pci_init_board(void) 37d188b18fSSimon Glass { 38d188b18fSSimon Glass struct pci_controller *hose = &x86_hose; 39d188b18fSSimon Glass 407430f108SSimon Glass /* Stop using the early hose */ 417430f108SSimon Glass gd->arch.hose = NULL; 427430f108SSimon Glass 43d188b18fSSimon Glass board_pci_setup_hose(hose); 44d188b18fSSimon Glass pci_setup_type1(hose); 45d188b18fSSimon Glass pci_register_hose(hose); 46d188b18fSSimon Glass 47d188b18fSSimon Glass hose->last_busno = pci_hose_scan(hose); 48d188b18fSSimon Glass } 49*6fb3b72eSSimon Glass 50*6fb3b72eSSimon Glass static struct pci_controller *get_hose(void) 51*6fb3b72eSSimon Glass { 52*6fb3b72eSSimon Glass if (gd->arch.hose) 53*6fb3b72eSSimon Glass return gd->arch.hose; 54*6fb3b72eSSimon Glass 55*6fb3b72eSSimon Glass return pci_bus_to_hose(0); 56*6fb3b72eSSimon Glass } 57*6fb3b72eSSimon Glass 58*6fb3b72eSSimon Glass unsigned int pci_read_config8(pci_dev_t dev, unsigned where) 59*6fb3b72eSSimon Glass { 60*6fb3b72eSSimon Glass uint8_t value; 61*6fb3b72eSSimon Glass 62*6fb3b72eSSimon Glass pci_hose_read_config_byte(get_hose(), dev, where, &value); 63*6fb3b72eSSimon Glass 64*6fb3b72eSSimon Glass return value; 65*6fb3b72eSSimon Glass } 66*6fb3b72eSSimon Glass 67*6fb3b72eSSimon Glass unsigned int pci_read_config16(pci_dev_t dev, unsigned where) 68*6fb3b72eSSimon Glass { 69*6fb3b72eSSimon Glass uint16_t value; 70*6fb3b72eSSimon Glass 71*6fb3b72eSSimon Glass pci_hose_read_config_word(get_hose(), dev, where, &value); 72*6fb3b72eSSimon Glass 73*6fb3b72eSSimon Glass return value; 74*6fb3b72eSSimon Glass } 75*6fb3b72eSSimon Glass 76*6fb3b72eSSimon Glass unsigned int pci_read_config32(pci_dev_t dev, unsigned where) 77*6fb3b72eSSimon Glass { 78*6fb3b72eSSimon Glass uint32_t value; 79*6fb3b72eSSimon Glass 80*6fb3b72eSSimon Glass pci_hose_read_config_dword(get_hose(), dev, where, &value); 81*6fb3b72eSSimon Glass 82*6fb3b72eSSimon Glass return value; 83*6fb3b72eSSimon Glass } 84*6fb3b72eSSimon Glass 85*6fb3b72eSSimon Glass void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value) 86*6fb3b72eSSimon Glass { 87*6fb3b72eSSimon Glass pci_hose_write_config_byte(get_hose(), dev, where, value); 88*6fb3b72eSSimon Glass } 89*6fb3b72eSSimon Glass 90*6fb3b72eSSimon Glass void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value) 91*6fb3b72eSSimon Glass { 92*6fb3b72eSSimon Glass pci_hose_write_config_word(get_hose(), dev, where, value); 93*6fb3b72eSSimon Glass } 94*6fb3b72eSSimon Glass 95*6fb3b72eSSimon Glass void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value) 96*6fb3b72eSSimon Glass { 97*6fb3b72eSSimon Glass pci_hose_write_config_dword(get_hose(), dev, where, value); 98*6fb3b72eSSimon Glass } 99