src/soc/intel/braswell/xhci.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_ids.h>
   7 #include <reg_script.h>
   8
   9 #include <soc/iomap.h>
  10 #include <soc/iosf.h>
  11 #include <soc/pci_devs.h>
  12 #include <soc/pm.h>
  13 #include <soc/ramstage.h>
  14 #include <soc/xhci.h>
  15
  16 #include "chip.h"
  17
  18 static void xhci_init(struct device *dev)
  19 {
  20         struct soc_intel_braswell_config *config = config_of(dev);
  21
  22         if (config->usb_comp_bg) {
  23                 struct reg_script ops[] = {
  24                         REG_IOSF_WRITE(IOSF_PORT_USBPHY, USBPHY_COMPBG, config->usb_comp_bg),
  25                         REG_SCRIPT_END
  26                 };
  27                 printk(BIOS_INFO, "Override USB2_COMPBG to: 0x%X\n", config->usb_comp_bg);
  28                 reg_script_run(ops);
  29         }
  30 }
  31
  32 static struct device_operations xhci_device_ops = {
  33         .read_resources         = pci_dev_read_resources,
  34         .set_resources          = pci_dev_set_resources,
  35         .enable_resources       = pci_dev_enable_resources,
  36         .init                   = xhci_init,
  37         .ops_pci                = &soc_pci_ops,
  38 };
  39
  40 static const struct pci_driver soc_xhci __pci_driver = {
  41         .ops    = &xhci_device_ops,
  42         .vendor = PCI_VID_INTEL,
  43         .device = XHCI_DEVID
  44 };