| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/mmio.h> |
| #include <device/pci_ehci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include <device/pci.h> |
| |
| #include "pch.h" |
| |
| static void usb_ehci_init(struct device *dev) |
| { |
| u32 reg32; |
| |
| /* Disable Wake on Disconnect in RMH */ |
| reg32 = RCBA32(RMHWKCTL); |
| reg32 |= 0x22; |
| RCBA32(RMHWKCTL) = reg32; |
| |
| printk(BIOS_DEBUG, "EHCI: Setting up controller.. "); |
| |
| /* For others, done in MRC. */ |
| #if CONFIG(USE_NATIVE_RAMINIT) |
| pci_write_config32(dev, 0x84, 0x930c8811); |
| pci_write_config32(dev, 0x88, 0x24000d30); |
| pci_write_config32(dev, 0xf4, 0x80408588); |
| pci_write_config32(dev, 0xf4, 0x80808588); |
| pci_write_config32(dev, 0xf4, 0x00808588); |
| pci_write_config32(dev, 0xfc, 0x205b1708); |
| #endif |
| |
| pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER); |
| //pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_SERR); |
| |
| /* For others, done in MRC. */ |
| #if CONFIG(USE_NATIVE_RAMINIT) |
| struct resource *res; |
| u8 access_cntl; |
| |
| access_cntl = pci_read_config8(dev, 0x80); |
| |
| /* Enable writes to protected registers. */ |
| pci_write_config8(dev, 0x80, access_cntl | 1); |
| |
| res = probe_resource(dev, PCI_BASE_ADDRESS_0); |
| if (res) { |
| /* Number of ports and companion controllers. */ |
| reg32 = read32p((uintptr_t)(res->base + 4)); |
| write32p((uintptr_t)(res->base + 4), |
| (reg32 & 0xfff00000) | 3); |
| } |
| |
| /* Restore protection. */ |
| pci_write_config8(dev, 0x80, access_cntl); |
| #endif |
| |
| 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 char *usb_ehci_acpi_name(const struct device *dev) |
| { |
| switch (dev->path.pci.devfn) { |
| case PCI_DEVFN(0x1a, 0): |
| return "EHC2"; |
| case PCI_DEVFN(0x1d, 0): |
| return "EHC1"; |
| } |
| return NULL; |
| } |
| |
| 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, |
| .acpi_name = usb_ehci_acpi_name, |
| }; |
| |
| static const unsigned short pci_device_ids[] = { 0x1c26, 0x1c2d, 0x1e26, 0x1e2d, |
| 0 }; |
| |
| static const struct pci_driver pch_usb_ehci __pci_driver = { |
| .ops = &usb_ehci_ops, |
| .vendor = PCI_VID_INTEL, |
| .devices = pci_device_ids, |
| }; |