/* SPDX-License-Identifier: GPL-2.0-only */ #include <device/device.h> #include <device/path.h> #include <device/smbus.h> #include <device/pci.h> #include <device/pci_ids.h> #include <device/pci_ops.h> #include <device/smbus_host.h> #include <southbridge/intel/common/smbus_ops.h> #include "pch.h" static void pch_smbus_init(struct device *dev) { struct resource *res; /* Enable clock gating */ pci_and_config16(dev, 0x80, ~((1 << 8) | (1 << 10) | (1 << 12) | (1 << 14))); /* Set Receive Slave Address */ res = probe_resource(dev, PCI_BASE_ADDRESS_4); if (res) smbus_set_slave_addr(res->base, SMBUS_SLAVE_ADDR); } static const char *smbus_acpi_name(const struct device *dev) { return "SBUS"; } static struct device_operations smbus_ops = { .read_resources = smbus_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .scan_bus = scan_smbus, .init = pch_smbus_init, .ops_smbus_bus = &lops_smbus_bus, .ops_pci = &pci_dev_ops_pci, .acpi_name = smbus_acpi_name, }; static const unsigned short pci_device_ids[] = { 0x1c22, 0x1e22, 0 }; static const struct pci_driver pch_smbus __pci_driver = { .ops = &smbus_ops, .vendor = PCI_VID_INTEL, .devices = pci_device_ids, };