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/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2008,2009
* Graeme Russ, <graeme.russ@gmail.com>
*
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <errno.h>
#include <malloc.h>
#include <pci.h>
#include <asm/pci.h>
DECLARE_GLOBAL_DATA_PTR;
static struct pci_controller x86_hose;
int pci_early_init_hose(struct pci_controller **hosep)
{
struct pci_controller *hose;
hose = calloc(1, sizeof(struct pci_controller));
if (!hose)
return -ENOMEM;
board_pci_setup_hose(hose);
pci_setup_type1(hose);
hose->last_busno = pci_hose_scan(hose);
gd->hose = hose;
*hosep = hose;
return 0;
}
__weak int board_pci_pre_scan(struct pci_controller *hose)
{
return 0;
}
__weak int board_pci_post_scan(struct pci_controller *hose)
{
return 0;
}
void pci_init_board(void)
{
struct pci_controller *hose = &x86_hose;
/* Stop using the early hose */
gd->hose = NULL;
board_pci_setup_hose(hose);
pci_setup_type1(hose);
pci_register_hose(hose);
board_pci_pre_scan(hose);
hose->last_busno = pci_hose_scan(hose);
board_pci_post_scan(hose);
}
static struct pci_controller *get_hose(void)
{
if (gd->hose)
return gd->hose;
return pci_bus_to_hose(0);
}
unsigned int pci_read_config8(pci_dev_t dev, unsigned where)
{
uint8_t value;
pci_hose_read_config_byte(get_hose(), dev, where, &value);
return value;
}
unsigned int pci_read_config16(pci_dev_t dev, unsigned where)
{
uint16_t value;
pci_hose_read_config_word(get_hose(), dev, where, &value);
return value;
}
unsigned int pci_read_config32(pci_dev_t dev, unsigned where)
{
uint32_t value;
pci_hose_read_config_dword(get_hose(), dev, where, &value);
return value;
}
void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value)
{
pci_hose_write_config_byte(get_hose(), dev, where, value);
}
void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value)
{
pci_hose_write_config_word(get_hose(), dev, where, value);
}
void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value)
{
pci_hose_write_config_dword(get_hose(), dev, where, value);
}
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