| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2009 One Laptop per Child, Association, Inc. |
| * Copyright (C) 2010 coresystems GmbH |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef NORTHBRIDGE_VIA_VX800_PCI_RAWOPS_H |
| #define NORTHBRIDGE_VIA_VX800_PCI_RAWOPS_H |
| |
| #include <stdint.h> |
| #include <arch/io.h> |
| |
| struct VIA_PCI_REG_INIT_TABLE { |
| u8 ChipRevisionStart; |
| u8 ChipRevisionEnd; |
| u8 Bus; |
| u8 Device; |
| u8 Function; |
| u32 Register; |
| u8 Mask; |
| u8 Value; |
| }; |
| |
| static void pci_modify_config8(device_t dev, unsigned where, u8 orval, u8 mask) |
| { |
| u8 data = pci_read_config8(dev, where); |
| data &= (~mask); |
| data |= orval; |
| pci_write_config8(dev, where, data); |
| } |
| |
| static void via_pci_inittable(u8 chipversion, |
| const struct VIA_PCI_REG_INIT_TABLE *initdata) |
| { |
| u8 i = 0; |
| device_t devbxdxfx; |
| for (i = 0;; i++) { |
| if ((initdata[i].Mask == 0) && (initdata[i].Value == 0) |
| && (initdata[i].Bus == 0) |
| && (initdata[i].ChipRevisionEnd == 0xff) |
| && (initdata[i].ChipRevisionStart == 0) |
| && (initdata[i].Device == 0) |
| && (initdata[i].Function == 0) |
| && (initdata[i].Register == 0)) |
| break; |
| if ((chipversion >= initdata[i].ChipRevisionStart) |
| && (chipversion <= initdata[i].ChipRevisionEnd)) { |
| devbxdxfx = |
| PCI_DEV(initdata[i].Bus, initdata[i].Device, |
| initdata[i].Function); |
| pci_modify_config8(devbxdxfx, |
| initdata[i].Register, |
| initdata[i].Value, |
| initdata[i].Mask); |
| } |
| } |
| } |
| #endif |