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https://github.com/brain-hackers/u-boot-brain
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8f9052fd98
Introduce a gd->hose to save the pci hose in the early phase so that apis in drivers/pci/pci.c can be used before relocation. Architecture codes need assign a valid gd->hose in the early phase. Some variables are declared as static so change them to be either stack variable or global data member so that they can be used before relocation, except the 'indent' used by CONFIG_PCI_SCAN_SHOW which just affects some print format. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
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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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#ifndef _PCI_I386_H_
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#define _PCI_I386_H_
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#define DEFINE_PCI_DEVICE_TABLE(_table) \
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const struct pci_device_id _table[]
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struct pci_controller;
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void pci_setup_type1(struct pci_controller *hose);
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/**
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* board_pci_setup_hose() - Set up the PCI hose
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*
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* This is called by the common x86 PCI code to set up the PCI controller
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* hose. It may be called when no memory/BSS is available so should just
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* store things in 'hose' and not in BSS variables.
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*/
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void board_pci_setup_hose(struct pci_controller *hose);
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/**
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* pci_early_init_hose() - Set up PCI host before relocation
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*
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* This allocates memory for, sets up and returns the PCI hose. It can be
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* called before relocation. The hose will be stored in gd->hose for
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* later use, but will become invalid one DRAM is available.
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*/
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int pci_early_init_hose(struct pci_controller **hosep);
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int board_pci_pre_scan(struct pci_controller *hose);
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int board_pci_post_scan(struct pci_controller *hose);
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/*
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* Simple PCI access routines - these work from either the early PCI hose
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* or the 'real' one, created after U-Boot has memory available
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*/
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unsigned int pci_read_config8(pci_dev_t dev, unsigned where);
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unsigned int pci_read_config16(pci_dev_t dev, unsigned where);
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unsigned int pci_read_config32(pci_dev_t dev, unsigned where);
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void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value);
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void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value);
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void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value);
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#endif
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