mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 23:47:24 +00:00
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>
112 lines
2.1 KiB
C
112 lines
2.1 KiB
C
/*
|
|
* 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);
|
|
gd->arch.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->arch.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->arch.hose)
|
|
return gd->arch.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);
|
|
}
|