| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <device/pci_ops.h> |
| #include <device/pci_def.h> |
| #include "pch.h" |
| |
| #define PCH_EHCI1_TEMP_BAR0 0xe8000000 |
| #define PCH_EHCI2_TEMP_BAR0 0xe8000400 |
| |
| /* |
| * 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. |
| */ |
| void enable_usb_bar(void) |
| { |
| pci_devfn_t usb0 = PCH_EHCI1_DEV; |
| pci_devfn_t usb1 = PCH_EHCI2_DEV; |
| |
| /* USB Controller 1 */ |
| pci_write_config32(usb0, PCI_BASE_ADDRESS_0, |
| PCH_EHCI1_TEMP_BAR0); |
| pci_or_config16(usb0, PCI_COMMAND, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); |
| |
| /* USB Controller 2 */ |
| pci_write_config32(usb1, PCI_BASE_ADDRESS_0, |
| PCH_EHCI2_TEMP_BAR0); |
| pci_or_config16(usb1, PCI_COMMAND, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); |
| } |