| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <device/pci_ops.h> |
| #include <device/pci_def.h> |
| #include "pch.h" |
| |
| /* |
| * Setup USB controller MMIO BAR to prevent the |
| * reference code from resetting the controller. |
| * |
| * The BAR will be re-assigned during device |
| * enumeration so these are only temporary. |
| */ |
| static void enable_usb_bar_on_device(pci_devfn_t dev, u32 bar) |
| { |
| pci_write_config32(dev, PCI_BASE_ADDRESS_0, bar); |
| pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); |
| } |
| |
| void enable_usb_bar(void) |
| { |
| enable_usb_bar_on_device(PCH_EHCI1_DEV, PCH_EHCI1_TEMP_BAR0); |
| if (!pch_is_lp()) |
| enable_usb_bar_on_device(PCH_EHCI2_DEV, PCH_EHCI2_TEMP_BAR0); |
| } |