| /* 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 <soc/smbus.h> |
| #include <device/smbus_host.h> |
| #include <intelblocks/tco.h> |
| #include <southbridge/intel/common/smbus_ops.h> |
| #include "smbuslib.h" |
| |
| static void pch_smbus_init(struct device *dev) |
| { |
| struct resource *res; |
| |
| /* Enable clock gating */ |
| pci_update_config32(dev, 0x80, |
| ~((1 << 8) | (1 << 10) | (1 << 12) | (1 << 14)), 0); |
| |
| /* Set Receive Slave Address */ |
| res = probe_resource(dev, PCI_BASE_ADDRESS_4); |
| if (res) |
| smbus_set_slave_addr(res->base, SMBUS_SLAVE_ADDR); |
| } |
| |
| /* |
| * `finalize_smbus` function is native implementation of equivalent events |
| * performed by each FSP NotifyPhase() API invocations. |
| * |
| * Operations are: |
| * 1. TCO Lock. |
| */ |
| static void finalize_smbus(struct device *dev) |
| { |
| if (!CONFIG(USE_FSP_NOTIFY_PHASE_POST_PCI_ENUM)) |
| tco_lockdown(); |
| } |
| |
| 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_pci = &pci_dev_ops_pci, |
| .ops_smbus_bus = &lops_smbus_bus, |
| .final = finalize_smbus, |
| }; |
| |
| static const unsigned short pci_device_ids[] = { |
| PCI_DID_INTEL_MTL_SMBUS, |
| PCI_DID_INTEL_RPP_P_SMBUS, |
| PCI_DID_INTEL_APL_SMBUS, |
| PCI_DID_INTEL_GLK_SMBUS, |
| PCI_DID_INTEL_CNL_SMBUS, |
| PCI_DID_INTEL_CNP_H_SMBUS, |
| PCI_DID_INTEL_LWB_SMBUS_SUPER, |
| PCI_DID_INTEL_LWB_SMBUS, |
| PCI_DID_INTEL_ICP_LP_SMBUS, |
| PCI_DID_INTEL_CMP_SMBUS, |
| PCI_DID_INTEL_CMP_H_SMBUS, |
| PCI_DID_INTEL_TGP_LP_SMBUS, |
| PCI_DID_INTEL_TGP_H_SMBUS, |
| PCI_DID_INTEL_MCC_SMBUS, |
| PCI_DID_INTEL_JSP_SMBUS, |
| PCI_DID_INTEL_ADP_P_SMBUS, |
| PCI_DID_INTEL_ADP_S_SMBUS, |
| PCI_DID_INTEL_ADP_M_N_SMBUS, |
| PCI_DID_INTEL_DNV_SMBUS_LEGACY, |
| 0 |
| }; |
| |
| static const struct pci_driver pch_smbus __pci_driver = { |
| .ops = &smbus_ops, |
| .vendor = PCI_VID_INTEL, |
| .devices = pci_device_ids, |
| }; |