src/southbridge/intel/i82801ix/smbus.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/device.h>
   4 #include <device/path.h>
   5 #include <device/smbus.h>
   6 #include <device/pci.h>
   7 #include <device/pci_ids.h>
   8 #include <device/pci_ops.h>
   9 #include <device/smbus_host.h>
  10 #include <southbridge/intel/common/smbus_ops.h>
  11 #include "i82801ix.h"
  12
  13 static void pch_smbus_init(struct device *dev)
  14 {
  15         /* Enable clock gating */
  16         pci_and_config16(dev, 0x80, ~((1 << 8) | (1 << 10) | (1 << 12) | (1 << 14)));
  17 }
  18
  19 static struct device_operations smbus_ops = {
  20         .read_resources         = smbus_read_resources,
  21         .set_resources          = pci_dev_set_resources,
  22         .enable_resources       = pci_dev_enable_resources,
  23         .scan_bus               = scan_smbus,
  24         .init                   = pch_smbus_init,
  25         .ops_smbus_bus          = &lops_smbus_bus,
  26         .ops_pci                = &pci_dev_ops_pci,
  27 };
  28
  29 static const struct pci_driver pch_smbus __pci_driver = {
  30         .ops     = &smbus_ops,
  31         .vendor  = PCI_VID_INTEL,
  32         .device = PCI_DID_INTEL_82801IB_SMB,
  33 };