| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <acpi/acpi_device.h> |
| #include <acpi/acpigen.h> |
| #include <acpi/acpigen_pci.h> |
| #include <amdblocks/amd_pci_util.h> |
| #include <assert.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pciexp.h> |
| #include <soc/pci_devs.h> |
| |
| static const char *pcie_gpp_acpi_name(const struct device *dev) |
| { |
| if (dev->path.type != DEVICE_PATH_PCI) |
| return NULL; |
| |
| switch (dev->path.pci.devfn) { |
| case PCIE_GPP_1_0_DEVFN: |
| return "GP10"; |
| case PCIE_GPP_1_1_DEVFN: |
| return "GP11"; |
| case PCIE_GPP_1_2_DEVFN: |
| return "GP12"; |
| case PCIE_GPP_2_0_DEVFN: |
| return "GP20"; |
| case PCIE_GPP_2_1_DEVFN: |
| return "GP21"; |
| case PCIE_GPP_2_2_DEVFN: |
| return "GP22"; |
| case PCIE_GPP_2_3_DEVFN: |
| return "GP23"; |
| case PCIE_GPP_2_4_DEVFN: |
| return "GP24"; |
| case PCIE_GPP_2_5_DEVFN: |
| return "GP25"; |
| case PCIE_GPP_2_6_DEVFN: |
| return "GP26"; |
| case PCIE_ABC_A_DEVFN: |
| return "GPPA"; |
| case PCIE_GPP_B_DEVFN: |
| return "GPPB"; |
| case PCIE_GPP_C_DEVFN: |
| return "GPPC"; |
| default: |
| printk(BIOS_ERR, "%s: Unhanded devfn 0x%x\n", __func__, dev->path.pci.devfn); |
| return NULL; |
| } |
| } |
| |
| static void acpi_device_write_gpp_pci_dev(const struct device *dev) |
| { |
| const char *scope = acpi_device_scope(dev); |
| const char *name = acpi_device_name(dev); |
| |
| assert(dev->path.type == DEVICE_PATH_PCI); |
| assert(name); |
| assert(scope); |
| |
| acpigen_write_scope(scope); |
| acpigen_write_device(name); |
| |
| acpigen_write_ADR_pci_device(dev); |
| acpigen_write_STA(acpi_device_status(dev)); |
| |
| /* b/187083211 - Enable GNB IO-APIC */ |
| acpigen_write_pci_FCH_PRT(dev); |
| |
| acpigen_pop_len(); /* Device */ |
| acpigen_pop_len(); /* Scope */ |
| } |
| |
| static struct device_operations internal_pcie_gpp_ops = { |
| .read_resources = pci_bus_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_bus_enable_resources, |
| .scan_bus = pci_scan_bridge, |
| .reset_bus = pci_bus_reset, |
| .acpi_name = pcie_gpp_acpi_name, |
| .acpi_fill_ssdt = acpi_device_write_gpp_pci_dev, |
| }; |
| |
| static const struct pci_driver internal_pcie_gpp_driver __pci_driver = { |
| .ops = &internal_pcie_gpp_ops, |
| .vendor = PCI_VENDOR_ID_AMD, |
| .device = PCI_DEVICE_ID_AMD_FAM17H_MODEL60H_PCIE_GPP_BUSABC, |
| }; |
| |
| static struct device_operations external_pcie_gpp_ops = { |
| .read_resources = pci_bus_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_bus_enable_resources, |
| .scan_bus = pciexp_scan_bridge, |
| .reset_bus = pci_bus_reset, |
| .acpi_name = pcie_gpp_acpi_name, |
| .acpi_fill_ssdt = acpi_device_write_gpp_pci_dev, |
| }; |
| |
| static const unsigned short external_pci_gpp_ids[] = { |
| PCI_DEVICE_ID_AMD_FAM17H_MODEL60H_PCIE_GPP_D1, |
| PCI_DEVICE_ID_AMD_FAM17H_MODEL60H_PCIE_GPP_D2, |
| 0 |
| }; |
| |
| static const struct pci_driver external_pcie_gpp_driver __pci_driver = { |
| .ops = &external_pcie_gpp_ops, |
| .vendor = PCI_VENDOR_ID_AMD, |
| .devices = external_pci_gpp_ids, |
| }; |