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Diffstat (limited to 'src/southbridge/amd/sb700/pci.c')
| -rw-r--r-- | src/southbridge/amd/sb700/pci.c | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/src/southbridge/amd/sb700/pci.c b/src/southbridge/amd/sb700/pci.c deleted file mode 100644 index b3c71569c7..0000000000 --- a/src/southbridge/amd/sb700/pci.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2010 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 <device/device.h> -#include <device/pci.h> -#include <device/pci_ids.h> -#include <device/pci_ops.h> -#include "sb700.h" - -static void pci_init(struct device *dev) -{ - u32 dword; - u16 word; - u8 byte; - - /* RPR 5.1 Enables the PCI-bridge subtractive decode */ - /* This setting is strongly recommended since it supports some legacy PCI add-on cards,such as BIOS debug cards */ - byte = pci_read_config8(dev, 0x4B); - byte |= 1 << 7; - pci_write_config8(dev, 0x4B, byte); - byte = pci_read_config8(dev, 0x40); - byte |= 1 << 5; - pci_write_config8(dev, 0x40, byte); - - /* RPR5.2 PCI-bridge upstream dual address window */ - /* this setting is applicable if the system memory is more than 4GB,and the PCI device can support dual address access */ - byte = pci_read_config8(dev, 0x50); - byte |= 1 << 0; - pci_write_config8(dev, 0x50, byte); - - /* RPR 5.3 PCI bus 64-byte DMA read access */ - /* Enhance the PCI bus DMA performance */ - byte = pci_read_config8(dev, 0x4B); - byte |= 1 << 4; - pci_write_config8(dev, 0x4B, byte); - - /* RPR 5.4 Enables the PCIB writes to be cacheline aligned. */ - /* The size of the writes will be set in the Cacheline Register */ - byte = pci_read_config8(dev, 0x40); - byte |= 1 << 1; - pci_write_config8(dev, 0x40, byte); - - /* RPR 5.5 Enables the PCIB to retain ownership of the bus on the Primary side and on the Secondary side when GNT# is deasserted */ - pci_write_config8(dev, 0x0D, 0x40); - pci_write_config8(dev, 0x1B, 0x40); - - /* RPR 5.6 Enable the command matching checking function on "Memory Read" & "Memory Read Line" commands */ - byte = pci_read_config8(dev, 0x4B); - byte |= 1 << 6; - pci_write_config8(dev, 0x4B, byte); - - /* RPR 5.7 When enabled, the PCI arbiter checks for the Bus Idle before asserting GNT# */ - byte = pci_read_config8(dev, 0x4B); - byte |= 1 << 0; - pci_write_config8(dev, 0x4B, byte); - - /* RPR 5.8 Adjusts the GNT# de-assertion time */ - word = pci_read_config16(dev, 0x64); - word |= 1 << 12; - pci_write_config16(dev, 0x64, word); - - /* RPR 5.9 Fast Back to Back transactions support */ - byte = pci_read_config8(dev, 0x48); - byte |= 1 << 2; - /* pci_write_config8(dev, 0x48, byte); */ - - /* RPR 5.10 Enable Lock Operation */ - /* byte = pci_read_config8(dev, 0x48); */ - byte |= 1 << 3; - pci_write_config8(dev, 0x48, byte); - - /* RPR 5.11 Enable additional optional PCI clock */ - word = pci_read_config16(dev, 0x64); - word |= 1 << 8; - pci_write_config16(dev, 0x64, word); - - /* RPR 5.12 Enable One-Prefetch-Channel Mode */ - dword = pci_read_config32(dev, 0x64); - dword |= 1 << 20; - pci_write_config32(dev, 0x64, dword); - - /* RPR 5.13 Disable PCIB MSI Capability */ - byte = pci_read_config8(dev, 0x40); - byte &= ~(1 << 3); - pci_write_config8(dev, 0x40, byte); - - /* rpr5.14 Adjusting CLKRUN# */ - dword = pci_read_config32(dev, 0x64); - dword |= (1 << 15); - pci_write_config32(dev, 0x64, dword); -} - -static struct pci_operations lops_pci = { - .set_subsystem = 0, -}; - -static struct device_operations pci_ops = { - .read_resources = pci_bus_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_bus_enable_resources, - .init = pci_init, - .scan_bus = pci_scan_bridge, - .reset_bus = pci_bus_reset, - .ops_pci = &lops_pci, -}; - -static const struct pci_driver pci_driver __pci_driver = { - .ops = &pci_ops, - .vendor = PCI_VENDOR_ID_ATI, - .device = PCI_DEVICE_ID_ATI_SB700_PCI, -}; |