src/soc/intel/broadwell/chip.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <device/device.h>
  16 #include <device/pci.h>
  17 #include <soc/acpi.h>
  18 #include <soc/pci_devs.h>
  19 #include <soc/ramstage.h>
  20 #include <soc/intel/broadwell/chip.h>
  21
  22 static void pci_domain_set_resources(struct device *dev)
  23 {
  24         assign_resources(dev->link_list);
  25 }
  26
  27 static struct device_operations pci_domain_ops = {
  28         .read_resources    = &pci_domain_read_resources,
  29         .set_resources     = &pci_domain_set_resources,
  30         .scan_bus          = &pci_domain_scan_bus,
  31 #if CONFIG(HAVE_ACPI_TABLES)
  32         .write_acpi_tables = &northbridge_write_acpi_tables,
  33 #endif
  34 };
  35
  36 static struct device_operations cpu_bus_ops = {
  37         .read_resources   = DEVICE_NOOP,
  38         .set_resources    = DEVICE_NOOP,
  39         .enable_resources = DEVICE_NOOP,
  40         .init             = &broadwell_init_cpus,
  41 };
  42
  43 static void broadwell_enable(struct device *dev)
  44 {
  45         /* Set the operations if it is a special bus type */
  46         if (dev->path.type == DEVICE_PATH_DOMAIN) {
  47                 dev->ops = &pci_domain_ops;
  48         } else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
  49                 dev->ops = &cpu_bus_ops;
  50         } else if (dev->path.type == DEVICE_PATH_PCI) {
  51                 /* Handle PCH device enable */
  52                 if (PCI_SLOT(dev->path.pci.devfn) > SA_DEV_SLOT_MINIHD &&
  53                     (dev->ops == NULL || dev->ops->enable == NULL)) {
  54                         broadwell_pch_enable_dev(dev);
  55                 }
  56         }
  57 }
  58
  59 struct chip_operations soc_intel_broadwell_ops = {
  60         CHIP_NAME("Intel Broadwell")
  61         .enable_dev = &broadwell_enable,
  62         .init       = &broadwell_init_pre_device,
  63 };
  64
  65 struct pci_operations broadwell_pci_ops = {
  66         .set_subsystem = &pci_dev_set_subsystem
  67 };