src/southbridge/intel/i82801gx/usb.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <device/device.h>
   5 #include <device/pci.h>
   6 #include <device/pci_ops.h>
   7 #include <device/pci_ids.h>
   8 #include "i82801gx.h"
   9
  10 static void usb_init(struct device *dev)
  11 {
  12         /* USB Specification says the device must be Bus Master */
  13         printk(BIOS_DEBUG, "UHCI: Setting up controller.. ");
  14
  15         pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
  16
  17         // Erratum
  18         pci_write_config8(dev, 0xca, 0x00);
  19
  20         // Yes. Another Erratum
  21         pci_or_config8(dev, 0xca, 1 << 0);
  22
  23         printk(BIOS_DEBUG, "done.\n");
  24 }
  25
  26 static struct device_operations usb_ops = {
  27         .read_resources         = pci_dev_read_resources,
  28         .set_resources          = pci_dev_set_resources,
  29         .enable_resources       = pci_dev_enable_resources,
  30         .init                   = usb_init,
  31         .enable                 = i82801gx_enable,
  32         .ops_pci                = &pci_dev_ops_pci,
  33 };
  34
  35 /* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */
  36 static const struct pci_driver i82801gb_usb1 __pci_driver = {
  37         .ops    = &usb_ops,
  38         .vendor = PCI_VID_INTEL,
  39         .device = 0x27c8,
  40 };
  41
  42 /* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */
  43 static const struct pci_driver i82801gb_usb2 __pci_driver = {
  44         .ops    = &usb_ops,
  45         .vendor = PCI_VID_INTEL,
  46         .device = 0x27c9,
  47 };
  48
  49 /* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */
  50 static const struct pci_driver i82801gb_usb3 __pci_driver = {
  51         .ops    = &usb_ops,
  52         .vendor = PCI_VID_INTEL,
  53         .device = 0x27ca,
  54 };
  55
  56 /* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */
  57 static const struct pci_driver i82801gb_usb4 __pci_driver = {
  58         .ops    = &usb_ops,
  59         .vendor = PCI_VID_INTEL,
  60         .device = 0x27cb,
  61 };