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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "pci.h"
/* bit [10,8] are dev func, bit[1,0] are dev index */
u32 pci_read_config32_index(pci_devfn_t dev, u32 index_reg, u32 index)
{
u32 dword;
pci_write_config32(dev, index_reg, index);
dword = pci_read_config32(dev, index_reg+0x4);
return dword;
}
#ifdef UNUSED_CODE
void pci_write_config32_index(pci_devfn_t dev, u32 index_reg, u32 index,
u32 data)
{
pci_write_config32(dev, index_reg, index);
pci_write_config32(dev, index_reg + 0x4, data);
}
#endif
u32 pci_read_config32_index_wait(pci_devfn_t dev, u32 index_reg,
u32 index)
{
u32 dword;
index &= ~(1<<30);
pci_write_config32(dev, index_reg, index);
do {
dword = pci_read_config32(dev, index_reg);
} while (!(dword & (1<<31)));
dword = pci_read_config32(dev, index_reg+0x4);
return dword;
}
#ifdef UNUSED_CODE
void pci_write_config32_index_wait(pci_devfn_t dev, u32 index_reg,
u32 index, u32 data)
{
u32 dword;
pci_write_config32(dev, index_reg + 0x4, data);
index |= (1<<30);
pci_write_config32(dev, index_reg, index);
do {
dword = pci_read_config32(dev, index_reg);
} while (!(dword & (1<<31)));
}
#endif
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