| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ops.h> |
| #include <device/pci_ids.h> |
| #include "i82801ix.h" |
| #include <device/pci_ehci.h> |
| |
| static void usb_ehci_init(struct device *dev) |
| { |
| u32 reg32; |
| |
| printk(BIOS_DEBUG, "EHCI: Setting up controller.. "); |
| reg32 = pci_read_config32(dev, PCI_COMMAND); |
| reg32 |= PCI_COMMAND_MASTER; |
| pci_write_config32(dev, PCI_COMMAND, reg32); |
| |
| printk(BIOS_DEBUG, "done.\n"); |
| } |
| |
| static void usb_ehci_set_subsystem(struct device *dev, unsigned int vendor, |
| unsigned int device) |
| { |
| u8 access_cntl; |
| |
| access_cntl = pci_read_config8(dev, 0x80); |
| |
| /* Enable writes to protected registers. */ |
| pci_write_config8(dev, 0x80, access_cntl | 1); |
| |
| pci_dev_set_subsystem(dev, vendor, device); |
| |
| /* Restore protection. */ |
| pci_write_config8(dev, 0x80, access_cntl); |
| } |
| |
| static const unsigned short pci_device_ids[] = { |
| PCI_DEVICE_ID_INTEL_82801IB_EHCI1, |
| PCI_DEVICE_ID_INTEL_82801IB_EHCI2, |
| 0 |
| }; |
| |
| static struct pci_operations lops_pci = { |
| .set_subsystem = &usb_ehci_set_subsystem, |
| }; |
| |
| static struct device_operations usb_ehci_ops = { |
| .read_resources = pci_ehci_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = usb_ehci_init, |
| .ops_pci = &lops_pci, |
| }; |
| |
| static const struct pci_driver pch_usb_ehci1 __pci_driver = { |
| .ops = &usb_ehci_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .devices = pci_device_ids, |
| }; |