| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <console/console.h> |
| #include <device/pci_ops.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_def.h> |
| #include "pch.h" |
| |
| /* Set bit in function disable register to hide this device */ |
| static void pch_disable_devfn(struct device *dev) |
| { |
| switch (dev->path.pci.devfn) { |
| case PCI_DEVFN(22, 0): /* MEI #1 */ |
| RCBA32_OR(FD2, PCH_DISABLE_MEI1); |
| break; |
| case PCI_DEVFN(22, 1): /* MEI #2 */ |
| RCBA32_OR(FD2, PCH_DISABLE_MEI2); |
| break; |
| case PCI_DEVFN(22, 2): /* IDE-R */ |
| RCBA32_OR(FD2, PCH_DISABLE_IDER); |
| break; |
| case PCI_DEVFN(22, 3): /* KT */ |
| RCBA32_OR(FD2, PCH_DISABLE_KT); |
| break; |
| case PCI_DEVFN(25, 0): /* Gigabit Ethernet */ |
| RCBA32_OR(BUC, PCH_DISABLE_GBE); |
| break; |
| case PCI_DEVFN(26, 0): /* EHCI #2 */ |
| RCBA32_OR(FD, PCH_DISABLE_EHCI2); |
| break; |
| case PCI_DEVFN(27, 0): /* HD Audio Controller */ |
| RCBA32_OR(FD, PCH_DISABLE_HD_AUDIO); |
| break; |
| case PCI_DEVFN(28, 0): /* PCI Express Root Port 1 */ |
| case PCI_DEVFN(28, 1): /* PCI Express Root Port 2 */ |
| case PCI_DEVFN(28, 2): /* PCI Express Root Port 3 */ |
| case PCI_DEVFN(28, 3): /* PCI Express Root Port 4 */ |
| case PCI_DEVFN(28, 4): /* PCI Express Root Port 5 */ |
| case PCI_DEVFN(28, 5): /* PCI Express Root Port 6 */ |
| case PCI_DEVFN(28, 6): /* PCI Express Root Port 7 */ |
| case PCI_DEVFN(28, 7): /* PCI Express Root Port 8 */ |
| RCBA32_OR(FD, PCH_DISABLE_PCIE(PCI_FUNC(dev->path.pci.devfn))); |
| break; |
| case PCI_DEVFN(29, 0): /* EHCI #1 */ |
| RCBA32_OR(FD, PCH_DISABLE_EHCI1); |
| break; |
| case PCI_DEVFN(31, 0): /* LPC */ |
| RCBA32_OR(FD, PCH_DISABLE_LPC); |
| break; |
| case PCI_DEVFN(31, 2): /* SATA #1 */ |
| RCBA32_OR(FD, PCH_DISABLE_SATA1); |
| break; |
| case PCI_DEVFN(31, 3): /* SMBUS */ |
| RCBA32_OR(FD, PCH_DISABLE_SMBUS); |
| break; |
| case PCI_DEVFN(31, 5): /* SATA #22 */ |
| RCBA32_OR(FD, PCH_DISABLE_SATA2); |
| break; |
| case PCI_DEVFN(31, 6): /* Thermal Subsystem */ |
| RCBA32_OR(FD, PCH_DISABLE_THERMAL); |
| break; |
| } |
| } |
| |
| void pch_enable(struct device *dev) |
| { |
| u32 reg32; |
| |
| if (!dev->enabled) { |
| printk(BIOS_DEBUG, "%s: Disabling device\n", dev_path(dev)); |
| |
| /* Ensure memory, io, and bus master are all disabled */ |
| reg32 = pci_read_config32(dev, PCI_COMMAND); |
| reg32 &= ~(PCI_COMMAND_MASTER | |
| PCI_COMMAND_MEMORY | PCI_COMMAND_IO); |
| pci_write_config32(dev, PCI_COMMAND, reg32); |
| |
| /* Disable this device if possible */ |
| pch_disable_devfn(dev); |
| } else { |
| /* Enable SERR */ |
| reg32 = pci_read_config32(dev, PCI_COMMAND); |
| reg32 |= PCI_COMMAND_SERR; |
| pci_write_config32(dev, PCI_COMMAND, reg32); |
| } |
| } |
| |
| struct chip_operations southbridge_intel_ibexpeak_ops = { |
| CHIP_NAME("Intel Series 5 (Ibexpeak) Southbridge") |
| .enable_dev = pch_enable, |
| }; |