4722c035cf
arch/x86/cpu/pci.c has access to the U-Boot global data thus DECLARE_GLOBAL_DATA_PTR is needed. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
113 lines
2.1 KiB
C
113 lines
2.1 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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* (C) Copyright 2008,2009
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* Graeme Russ, <graeme.russ@gmail.com>
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*
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* (C) Copyright 2002
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* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <errno.h>
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#include <malloc.h>
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#include <pci.h>
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#include <asm/pci.h>
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DECLARE_GLOBAL_DATA_PTR;
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static struct pci_controller x86_hose;
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int pci_early_init_hose(struct pci_controller **hosep)
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{
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struct pci_controller *hose;
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hose = calloc(1, sizeof(struct pci_controller));
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if (!hose)
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return -ENOMEM;
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board_pci_setup_hose(hose);
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pci_setup_type1(hose);
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gd->arch.hose = hose;
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*hosep = hose;
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return 0;
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}
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__weak int board_pci_pre_scan(struct pci_controller *hose)
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{
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return 0;
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}
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__weak int board_pci_post_scan(struct pci_controller *hose)
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{
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return 0;
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}
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void pci_init_board(void)
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{
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struct pci_controller *hose = &x86_hose;
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/* Stop using the early hose */
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gd->arch.hose = NULL;
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board_pci_setup_hose(hose);
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pci_setup_type1(hose);
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pci_register_hose(hose);
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board_pci_pre_scan(hose);
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hose->last_busno = pci_hose_scan(hose);
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board_pci_post_scan(hose);
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}
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static struct pci_controller *get_hose(void)
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{
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if (gd->arch.hose)
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return gd->arch.hose;
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return pci_bus_to_hose(0);
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}
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unsigned int pci_read_config8(pci_dev_t dev, unsigned where)
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{
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uint8_t value;
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pci_hose_read_config_byte(get_hose(), dev, where, &value);
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return value;
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}
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unsigned int pci_read_config16(pci_dev_t dev, unsigned where)
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{
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uint16_t value;
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pci_hose_read_config_word(get_hose(), dev, where, &value);
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return value;
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}
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unsigned int pci_read_config32(pci_dev_t dev, unsigned where)
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{
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uint32_t value;
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pci_hose_read_config_dword(get_hose(), dev, where, &value);
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return value;
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}
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void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value)
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{
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pci_hose_write_config_byte(get_hose(), dev, where, value);
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}
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void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value)
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{
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pci_hose_write_config_word(get_hose(), dev, where, value);
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}
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void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value)
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{
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pci_hose_write_config_dword(get_hose(), dev, where, value);
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}
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